Round-trip One-way. Mon 4/22. Mon 4/29. 1 adult, Economy. Find deals. We work with more than 300 partners to bring you better travel deals. The best prices from …In the last 72 hours, the best return deals on flights connecting Boston to Seattle were found on Spirit Airlines ($235) and United Airlines ($249). American Airlines proposed the cheapest one-way flight at $124.Direct. from $286. Boston.$287 per passenger.Departing Mon, Apr 29, returning Tue, May 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Apr 29, arriving in Boston Logan International.Inbound direct flight with Alaska Airlines departing from Boston Logan ...Use Google Flights to find cheap departing flights to Seattle and to track prices for specific travel dates for your next getaway.Boston Logan International. Seattle / Tacoma International. Compare Boston Logan International to Seattle / Tacoma International flight deals. Find the cheapest month or …The Seattle-based airline said in a statement it requested a ground stop for all Alaska and Horizon air flights out of an abundance of caution after it “experienced an …Seattle. £201 per passenger.Departing Sun, 28 Apr, returning Sun, 12 May.Return flight with United.Outbound indirect flight with United, departs from Boston Logan …Flights from Boston to Seattle. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Boston to Seattle. Find the best flights fast,...Compare cheap flights and find tickets from Boston (BOS) to Seattle (SEA). Book directly with no added fees. Skyscanner. Help; English (UK) EN Australia $ AUD AUD ($) Flights. Hotels. Car Hire. Cheap Flights from Boston to Seattle ... Add nearby airports. Depart. Return. Cabin Class & Travellers 1 adult, Economy. Direct flights only. Search ...Users in need of a one-way flight from Boston to Washington can choose from these deals. Users can also find round-trip Boston to Washington flights by using the search form above. Wed 4/24 5:00 am BOS - SEA. 1 stop 10h 38m American Airlines. Deal found 4/17 $125.Return flight price. Wed 01 May - Sat 04 May. from. £210. One-way flight price: from £210 Flights Departing from: Boston Flights arriving in: Seattle Airlines flying to this destinationThe cheapest prices found with in the last 7 days for return flights were $53 and $39 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 15 - Wed, May 22. PHX.Cheap Flights from Boston (BOS) to Seattle (SEA) Prices were available within the past 7 days and start at £110 for one-way flights and £205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Return. Fri, 3 May - Tue, 7 May. BOS.Take a look at the list of non stop flights and flights with layovers from Boston to Seattle with the lowest price of $47. The fastest direct flight takes 6h and the fastest connecting – 7h 26m. *Departure and arrival times - local.Return flight price. Wed 01 May - Sat 04 May. from. £210. One-way flight price: from £210 Flights Departing from: Boston Flights arriving in: Seattle Airlines flying to this destinationBOS - Boston Logan - Signature Flight Support 240 Prescott St, Boston, MA 02128 View Airport; Charter to Boston Private Jet Charter Boston to Seattle Local Seattle Airports SEA - Seattle Tacoma International - 2400 S 170th St, SeaTac, WA 98158, USA View Airport; Charter to SeattleAdventure stretches out in all directions in Big Sky Country—see where your wanderlust leads when you book your flight into Bozeman Yellowstone International Airport. Find flights to Bozeman. Southwest flies to over 100 destinations! Explore flights across our network. Visit Seattle/Tacoma Plan your trip Why Southwest ® Rapid Rewards ®.One-way flights to Boston. Take a look at some of the best available flights travelling to Boston at this time. Book a round-trip flight to Boston instead by using the search form above. mar. 27/8 1:50 p.m. ORD - BOS. Nonstop 2h 28m Delta. Deal found 22/4 C$ 88.AS317 and Boston BOS to Seattle SEA Flights. Flight AS317 is code-shared by 2 airlines using the flight numbers QR2967, TN2331. Other flights departing from Boston BOS: B6197, B6327, NK2086, 9K1007. Other flights arriving at Seattle SEA: AS1403, AS345, AS1071, WN787. All flights connecting Boston BOS to Seattle SEA.Prices were available within the past 7 days and start at $129 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Tue, Apr 30 - …14-Mar-2024. 07:37AM EDT Boston Logan Intl - BOS. 10:44AM PDT Seattle-Tacoma Intl - SEA. B39M. 6h 07m. Join FlightAware View more flight history Purchase entire flight history for ASA459. Get Alerts.Take a look at some of the one-way flights departing to Seattle in the near future. If you're in need of a round-trip flight to Seattle instead, make sure to update the search form at the top of page. mié. 5/22 10:04 am ONT - SEA. Nonstop 2h 53m Frontier. Deal found 4/16 $29.Cheap flights from Boston (BOS) to Seattle (SEA) Prices were available within the past 7 days and start at CA $160 for one-way flights and CA $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Seattle with no change fee on selected ...Amazing American Airlines BOS to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $316 round trip and $152 one way. Prices and availability subject to change. Additional terms may apply. Sat, Mar 23 - Mon, Mar 25.Cheap Seattle to Boston flights in April & May 2024. Listed are some of the best fares we've found on flights departing from Seattle to Boston in 2024. Check back regularly for other flight deals. jue. 2/5 9:05 p.m. SEA - BOS. Nonstop 5h 31m JetBlue. mié. 8/5 4:25 p.m. BOS - SEA. Nonstop 6h 05m JetBlue.The cheapest prices found with in the last 7 days for return flights were $53 and $39 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 15 - Wed, May 22. PHX.All flights by Alaska Airlines and Horizon Air, which is owned by Alaska, were grounded from 7:30 a.m. to 8:30 a.m. “out of an abundance of caution,” the …06:33AM EDT Boston Logan Intl - BOS. 09:41AM PDT Seattle-Tacoma Intl - SEA. A21N. 6h 08m. Join FlightAware View more flight history Purchase entire flight history for DAL384. Get Alerts.Lowest Fare for Boston to Seattle Flight ₹ 10665- 27 Apr: Today's Lowest Fare ₹ 0: Total flights from Boston to Seattle in a Week : 142 Flights : First Flight: American Airlines, departs at 05:25: Last Flight: JetBlue Airways, Alaska Airlines, departs at 20:25: Non-Stop Flights from Boston to Seattle: 9: Airport Name & codes of Boston & SeattleDL9759 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AS311, DL58, OG112, WN1181. Other flights arriving at Seattle SEA: AS379, AS2003, AS385, AC8810. All flights connecting Boston BOS to Seattle SEA.Flights to Boston (BOS) with American Airlines. Find low-fare American Airlines flights to Boston. Enjoy our travel experience and great prices. Book the lowest fares on Boston flights today!View airport information for Seattle (SEA) Compare cheap flights to Seattle with Alaska Airlines. Enjoy our low prices and generous experience. Book the lowest fares on Seattle flights today.Connect with us. Find low fares to top destinations on the official Southwest Airlines website. Book flight reservations, rental cars, and hotels on southwest.com.Find airfare and ticket deals for cheap flights from Boston, MA to Seattle, WA. Search flight deals from various travel partners with one click at $91.Track JetBlue (B6) #498 flight from Seattle-Tacoma Intl to Boston Logan Intl. Flight status, tracking, and historical data for JetBlue 498 (B6498/JBU498) including scheduled, estimated, and actual departure and arrival times.Fly direct from London to Seattle with British Airways to begin your Washington State adventure. The city’s diverse neighbourhoods are compact and walkable, so you can cover plenty of ground in a day. Start your morning the Seattle way, with freshly brewed coffee, then hop on the Seattle Centre Monorail, which stops at the Museum of Pop ...Find best cheap flight deals from Boston to Seattle today! Compare & reserve one-way or return flight tickets from Boston to Seattle on Trip.com. Browse direct and non-stop flight airfares to Seattle on different airlines.She was the No. 1 overall pick by Seattle in the 2002 WNBA draft and played 19 seasons. She retired after the 2022 season as the league's all-time assists leader …DL9759 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AS311, DL58, OG112, WN1181. Other flights arriving at Seattle SEA: AS379, AS2003, AS385, AC8810. All flights connecting Boston BOS to Seattle SEA.AS349 and Boston BOS to Seattle SEA Flights. Flight AS349 is code-shared by 3 airlines using the flight numbers AA9369, JL6357, TN2336. Other flights departing from Boston BOS: B6167, DL5670, AA2600, DL627. Other flights arriving at Seattle SEA: UA1986, AS2400, AS2185, AS9441. All flights connecting Boston BOS to Seattle SEA.from. Boston (MA) Cheap flights from Boston (MA) to Seattle from £138.99. Boston (MA) (United States) - Seattle (United States) return flights from £292.99. From 04/06/2024 …Seattle. £201 per passenger.Departing Sun, 28 Apr, returning Sun, 12 May.Return flight with United.Outbound indirect flight with United, departs from Boston Logan …The two airlines most popular with KAYAK users for flights from Boston to Vancouver are Alaska Airlines and Delta. With an average price for the route of $631 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $530 and an overall rating of 8.0. On average, a flight to Seattle costs $376. The cheapest price found on KAYAK in the last 2 weeks cost $44 and departed from Phoenix Sky Harbor Intl Airport. The most popular routes on KAYAK are Chicago to Seattle which costs $364 on average, and Boston to Seattle, which costs $512 on average. See prices from: Flight status. Help. Contact American. Receipts and refunds. FAQs. Agency reference. Cargo , Opens another site in a new window that may not meet accessibility guidelines. Bag and optional fees. Customer service and contingency plans.Find The Best Day To Fly from Boston to Seattle Amazing Alaska Airlines BOS to SEA Flight Deals The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $265 round trip and $149 one way.B789. Arrived / Gate Arrival. Sun 05:40PM EST. 08:30PM PST Sun. Boston Logan Intl (KBOS) - Seattle-Tacoma Intl (KSEA) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.To find the best deals on flights to Seattle from Boston with Alaska Airlines, just enter your travel dates, filter by Alaska Airlines, and hit search. You’ll find 4 flights to choose from and can sort by price, flight duration, and arrival or departure time. Return flights from Seattle SEA to Boston BOS with Alaska Airlines Book flights from Boston Logan to Seattle/Tacoma with Southwest Airlines ®. It’s easy to find the Logan International Airport to Seattle-Tacoma International Airport flight to make your booking and travel a breeze. Whether you’re traveling for business or pleasure, solo or with the whole family, you’ll enjoy flying Southwest ®. AS349 and Boston BOS to Seattle SEA Flights. Flight AS349 is code-shared by 3 airlines using the flight numbers AA9369, JL6357, TN2336. Other flights departing from Boston BOS: B6167, DL5670, AA2600, DL627. Other flights arriving at Seattle SEA: UA1986, AS2400, AS2185, AS9441. All flights connecting Boston BOS to Seattle SEA.Each day, there are between 9 and 14 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 13m. The most common departure time is … Washington ». Seattle ». First Class. $261. Seattle. Search and compare first class flight deals to Seattle. Fly from San Francisco from $327, from Ontario from $387, from Los Angeles from $454. Book your first class tickets to Seattle. Plan your Delta flight from Boston to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Boston to Seattle is currently $137 while a round-trip flight costs $269. Price data was last updated on April 7, 2024.The calculation of flight time is based on the straight line distance from BOS to SEA ("as the crow flies"), which is about 2,495 miles or 4 016 kilometers. Your trip begins at Boston Logan International Airport in Boston, Massachusetts. It ends at Seattle-Tacoma International Airport in Seattle, Washington.4 days ago · Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from £102 one-way. Flex your dates to find the best BOS-SEA ticket prices. Direct flights from Boston to Seattle. All flights from BOS to SEA non-stop. There are direct flights from General Edward Lawrence Logan International, Massachusetts, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week The flight distance is 2502 miles and the trip usually takes about 6 hours and 9 minutes.Adventure stretches out in all directions in Big Sky Country—see where your wanderlust leads when you book your flight into Bozeman Yellowstone International Airport. Find flights to Bozeman. Southwest flies to over 100 destinations! Explore flights across our network. Visit Seattle/Tacoma Plan your trip Why Southwest ® Rapid Rewards ®. Find cheap flights from Seattle to Massachusetts from. $135. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Thu 5/23. Thu 5/30. 14-Mar-2024. 07:37AM EDT Boston Logan Intl - BOS. 10:44AM PDT Seattle-Tacoma Intl - SEA. B39M. 6h 07m. Join FlightAware View more flight history Purchase entire flight history for ASA459. Get Alerts.Each day, there are between 12 and 18 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 27m. The most common departure time is 15:00 and most flights take off in the morning. Each week, there are 109 flights. The most frequent day of departure is Sunday, when 17% of all weekly flights depart.06:33AM EDT Boston Logan Intl - BOS. 09:41AM PDT Seattle-Tacoma Intl - SEA. A21N. 6h 08m. Join FlightAware View more flight history Purchase entire flight history for DAL384. Get Alerts.Cheap JetBlue flights from USA to Seattle. Check out some of the cheapest JetBlue flights we've come across from USA to Seattle. Deals update often to give you more flight options matching your criteria. Wed 5/8 7:30 pm JFK - SEA. Nonstop 6h 19m JetBlue. Fri 5/10 11:59 pm SEA - JFK. Nonstop 5h 21m JetBlue. Deal found 4/18 $217.Cheap Flights from Boston to Seattle Paine Field Intl. Airport (BOS-PAE) Prices were available within the past 7 days and start at $215 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.Airfares from $101 One Way, $245 Round Trip from Seattle to Boston. Prices starting at $245 for return flights and $101 for one-way flights to Boston were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Cheap Flights from Seattle to Boston (SEA-BOS) Prices were available within the past 7 days and start at $101 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Boston with no change fee on selected flights. 9. Virgin Atlantic. Virgin Atlantic, Sir Richard Branson’s brainchild, has always been about breaking the mold and offering a flight experience that’s anything but ordinary. As one of the best airlines to travel to Seattle, Virgin Atlantic brings British flair, a sprinkle of fun, and a whole lot of style to the skies. Amazing American Airlines BOS to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $316 round trip and $152 one way. Prices and availability subject to change. Additional terms may apply. Sat, Mar 23 - Mon, Mar 25. Mar 22, 2024 · The two airlines most popular with KAYAK users for flights from Boston to Seattle are Alaska Airlines and JetBlue. With an average price for the route of $372 and an overall rating of 8.3, Alaska Airlines is the most popular choice. JetBlue is also a great choice for the route, with an average price of $398 and an overall rating of 8.1. DAL340. A21N. Arrived / Gate Arrival. Fri 11:00AM EDT. 02:27PM PDT Fri. Boston Logan Intl (KBOS) - Seattle-Tacoma Intl (KSEA) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.from. Boston (MA) Cheap flights from Boston (MA) to Seattle from £138.99. Boston (MA) (United States) - Seattle (United States) return flights from £292.99. From 04/06/2024 …Find deals on Seattle to Boston flights. Please use the search function at the top of the page to find our best flight deals. *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to ...To find the best deals on flights to Seattle from Boston with Alaska Airlines, just enter your travel dates, filter by Alaska Airlines, and hit search. You’ll find 4 flights to choose from and can sort by price, flight duration, and arrival or departure time. Return flights from Seattle SEA to Boston BOS with Alaska AirlinesCheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $247 round trip and one way. Prices and availability subject to change. Additional terms may apply. Wed, Apr 3 - Wed, Apr 10. BOS. Boston. SEA. Seattle.Each day, there are between 12 and 18 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 27m. The most common departure time is 15:00 and most flights take off in the morning. Each week, there are 109 flights. The most frequent day of departure is Sunday, when 17% of all weekly flights depart.Lowest Fare for Boston to Seattle Flight ₹ 10665- 27 Apr: Today's Lowest Fare ₹ 0: Total flights from Boston to Seattle in a Week : 142 Flights : First Flight: American Airlines, departs at 05:25: Last Flight: JetBlue Airways, Alaska Airlines, departs at 20:25: Non-Stop Flights from Boston to Seattle: 9: Airport Name & codes of Boston & SeattleFind flights to Alaska from $254. Fly from Boston on Alaska Airlines, Sun Country Air, Delta and more. Search for Alaska flights on KAYAK now to find the best deal.Airlines. Virgin Atlantic to Seattle. British Airways to Seattle. KLM to Seattle. Find flights to Seattle SEA from £285. Fly from the United Kingdom on Virgin Atlantic, British Airways & more. London from £285; Edinburgh from £314; Manchester from £329 | KAYAK.05:32PM EDT Boston Logan Intl - BOS. 08:47PM PDT Seattle-Tacoma Intl - SEA. A321. 6h 15m. Join FlightAware View more flight history Purchase entire flight history for JBU197. Get Alerts.Boston to Seattle flight time & Flights Info. Flight Time. 6 hours 21 minutes. Earliest Flight. 06:30⇒09:50. Latest Flight. 19:59⇒23:22. Direct Flight Price.The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Flights from Spirit Airlines typically cost $377.91 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Boston to Seattle on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport.Each day, there are between 9 and 14 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 13m. The most common departure time is …BOS. Logan International Airport. Seattle / Tacoma. United States. SEA. Seattle–Tacoma International Airport. Check Prices. Flight schedule. su. mo. tu. we. th. fr. sa. Distance. …Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Sat, Apr 27 - …DL953 Flight Status Delta Air Lines: Boston to Seattle (DAL953) Delta Air Lines DL 953. Landed On Time. Boston. Boston Logan International Airport (BOS) All BOS Departures > ... DL 953 Flight Status & Schedule Delta Air Lines Boston to Seattle. Date From To Departure Arrival Status; Mar 06: BOS: SEA: 18:39 : 21:07 : Landed. …
Washington ». Seattle ». First Class. $261. Seattle. Search and compare first class flight deals to Seattle. Fly from San Francisco from $327, from Ontario from $387, from Los Angeles from $454. Book your first class tickets to Seattle. . Pay2play
Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...There are 4 airlines that fly nonstop from Boston to Seattle. They are: Alaska Airlines, Delta, Hainan Airlines and JetBlue. The cheapest price of all airlines flying this route was found with JetBlue at $133 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines.The best round-trip flight deal from Boston to Seattle found on momondo in the last 72 hours is $217. The fastest flight from Boston to Seattle takes 6h 05m. Direct flights go …Return flight price. Wed 01 May - Sat 04 May. from. £210. One-way flight price: from £210 Flights Departing from: Boston Flights arriving in: Seattle Airlines flying to this destinationAS459 and Boston BOS to Seattle SEA Flights. Flight AS459 is code-shared by 5 airlines using the flight numbers AA9302, DE5235, JL6357, KE6222, TN2335. Other flights departing from Boston BOS: AA1467, AA1509, DL5843, WN3047. Other flights arriving at Seattle SEA: DL143, AS767, DL697, DL3953.Washington ». Seattle. $227. Flights to Seattle, Seattle. Find flights to Seattle from $125. Fly from Massachusetts on American Airlines, Alaska Airlines, JetBlue and more. Search for Seattle flights on KAYAK now to find the best deal. Airfares from $125 One Way, $226 Round Trip from Boston to Seattle. Prices starting at $226 for return flights and $125 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. AS364 and Boston BOS to Seattle SEA Flights. Flight AS364 is code-shared by 2 airlines using the flight numbers QR2033, TN2334. Other flights departing from Boston BOS: DL5698, NK2086, AA1434, AA2145. Other flights arriving at Seattle SEA: AS3, DL3840, DL3688, DL4141.Find airfare and ticket deals for cheap flights from Boston, MA to Seattle, WA. Search flight deals from various travel partners with one click at $91.Prices were available within the past 7 days and start at $129 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Tue, Apr 30 - …Cheap Flights from Seattle Paine Field Intl. Airport to Boston (PAE-BOS) Prices were available within the past 7 days and start at $206 for one-way flights and $439 for round trip, for the period specified. Prices and availability are …Non-stop flight time from Boston to Seattle, WA is around 6 hours 45 minutes. Fastest one-stop flight between Boston and Seattle, WA takes close to 8 hours . However, some airlines could take as long as 13 hours based on the stopover destination and waiting duration. This is the average non-stop flight time from Boston to Seattle, WA.1 stop. Wed, 1 May BOS - SEA with United. 1 stop. from $395. Boston.$454 per passenger.Departing Wed, 1 May, returning Tue, 7 May.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 1 May, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston …Wed, 15 May BOS - SEA with Frontier Airlines. 1 stop. from £186. Boston. £202 per passenger.Departing Sat, 27 Apr, returning Sun, 28 Apr.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Sat, 27 Apr, arriving in Boston Logan International.Inbound direct flight with Delta departs from ...BOS - Boston Logan - Signature Flight Support 240 Prescott St, Boston, MA 02128 View Airport; Charter to Boston Private Jet Charter Boston to Seattle Local Seattle Airports SEA - Seattle Tacoma International - 2400 S 170th St, SeaTac, WA 98158, USA View Airport; Charter to Seattle Flights from Boston to Seattle. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Boston to Seattle. Find the best flights fast,... The two airlines most popular with KAYAK users for flights from Boston to Vancouver are Alaska Airlines and Delta. With an average price for the route of $631 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $530 and an overall rating of 8.0.AS9202 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AA1414, B6569, DL1410, B6365. Other flights arriving at Seattle SEA: DL372, UA1399, AS1307, WN799. All flights connecting Boston BOS to Seattle SEA.flight time from Boston to Seattle & Flights Info. Flight Time. 6 hours 21 minutes. Earliest Flight. 06:30⇒09:47. Latest Flight. 19:59⇒23:22. Direct Flight Price..