Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Flights
Hotels
1 traveler
Unsupported Browser!
Find Flights

Cheap Flights from Boston to Seattle, WA, United States - BOS to SEA

Popular flights from Boston to Seattle

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

Alaska Airlines
Departure Date Return Date Lowest Price
Mar 17, 2016 Mar 21, 2016 $234
American Airlines
Departure Date Return Date Lowest Price
Mar 2, 2016 Mar 6, 2016 $240
JetBlue Airways
Departure Date Return Date Lowest Price
Mar 15, 2016 Mar 23, 2016 $233
Sun Country Airlines
Departure Date Return Date Lowest Price
Apr 8, 2016 Apr 10, 2016 $362
United Airlines
Departure Date Return Date Lowest Price
Mar 2, 2016 Mar 9, 2016 $241
Mar 2, 2016 Mar 6, 2016 $241
Mar 7, 2016 Mar 8, 2016 $241
Mar 15, 2016 Mar 22, 2016 $241
Mar 16, 2016 Mar 22, 2016 $241

How Much Does it Cost to Fly from Boston to Seattle (BOS to SEA)?

We have collected flight cost data from across the web for travel from Boston to Seattle, and have found the average flight price for this trip to be $244.

When Can I Buy the Cheapest Flight from Boston to Seattle (BOS to SEA)?

Airlines can adjust prices for plane tickets from Boston to Seattle based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Boston to Seattle

The chart below shows up-to-date information regarding how far in advance a flight from Boston to Seattle should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $543 $457
7-14 days $291 $275
14-21 days $237 $240
21-30 days $237 $241
30-60 days $233 $241
60-90 days $287 $285
90+ days $288 $296

Cheapest Day To Fly from Boston to Seattle

The chart below shows up-to-date information regarding the cheapest days to fly from Boston to Seattle.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$237 $233 $237 $234 $267 $267 $237

Lowest Fares Chart By Month from Boston to Seattle

The chart below shows the lowest fare by month when flying from Boston to Seattle.

Month Origin Destination Carrier Depart Date Return Date Stops Price
February Boston Seattle Alaska 2/26/16 3/2/16 0 $267
March Boston Seattle JetBlue 3/15/16 3/23/16 0 $233
April Boston Seattle Alaska 4/5/16 4/11/16 0 $279
May Boston Seattle Alaska 5/5/16 5/8/16 0 $288
June Boston Seattle JetBlue 6/2/16 6/9/16 0 $334
July Boston Seattle United 7/4/16 7/12/16 1 $346
August Boston Seattle JetBlue 8/10/16 8/15/16 0 $339
September Boston Seattle Alaska 9/20/16 10/4/16 0 $323

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Boston to Seattle

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Boston to Seattle.

Next 30 Days

SunMonTueWedThuFriSat
14 15 16 17 18 19 20
$639
21 22 23 24 25 26 27
$639 $297
28 29 1 2 3 4 5
$297 $237
6 7 8 9 10 11 12
$237 $335
13 14 15 16 17 18 19
$335 $234
20 21 22 23 24 25 26
$234

TIPSave $66 by flying into Portland instead of Seattle from Boston

Non-Stop vs Connecting Flights from Boston to Seattle (BOS to SEA)

Your Boston to Seattle flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Boston to Seattle is $274.

The average price for non-stop flights from Boston to Seattle is $251.

The chart below shows up to date information regarding non-stop flights from Boston to Seattle.

Nonstop Flight Details from Boston to Seattle
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 2 1 2 2 2 1 07:00 18:45
JetBlue 2 2 2 2 2 1 2 08:37 19:15

Round Trip vs One Way Flights from Boston to Seattle (BOS to SEA)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Boston to Seattle. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Boston to Seattle is $119.

The average price for round trip flights from Boston to Seattle is $264.

More Cheap Flights

FlightsAirlineLowest Price
New York to Seattle American, Alaska, JetBlue, Sun Country, United $238
Newark to Seattle American, Alaska, JetBlue, United, Virgin America $252
Hartford to Seattle American, Alaska, United $314
Providence to Seattle American, United $277
Burlington to Seattle American, United $377
Manchester to Seattle American, United $284
Portland to Seattle American, JetBlue, United $298
Albany to Seattle American, United $339
Westchester County to Seattle American, United $324
Bangor to Seattle American, United $630
Long Island MacArthur to Seattle American $539
Newburgh to Seattle Silver, American, JetBlue, United Check Dates
New Haven to Seattle American $516
Nantucket to Seattle American, JetBlue, United Check Dates
New York to Los Angeles American, Alaska, JetBlue, Spirit, Sun Country, United, Virgin America $241
New York to Chicago American, Alaska, JetBlue, Spirit, United $77
New York to San Francisco American, Alaska, JetBlue, Sun Country, United, Virgin America $238
New York to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $223
New York to Vancouver American, Air Canada, Alaska, JetBlue, Cathay, Hawaiian, Spirit, Porter, Sun Country, United, Virgin America, WestJet $331
New York to London American, Air Berlin, Air France, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, OpenSkies, Aer Lingus, Iberia, Meridiana, KLM, Kuwait, Lufthansa, LOT, Thomas Cook, Czech, Austrian, TAROM, SATA, SAS, Brussels, Tap Portugal, United, Air Europa, Virgin Atlantic $646
New York to Portland American, Alaska, JetBlue, Spirit, Sun Country, United, Virgin America $284
New York to Atlanta American, Alaska, Frontier, Spirit, United $124
New York to Dallas - Ft Worth American, JetBlue, Spirit, Sun Country, United, Virgin America $80
Boston to Portland American, Alaska, JetBlue, Spirit, Sun Country, United $241
New York to Denver American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United $182
New York to Paris American, Air Berlin, Air France, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, OpenSkies, Aer Lingus, Iberia, Meridiana, KLM, Lufthansa, LOT, Thomas Cook, Czech, Austrian, SATA, XL Airways, SAS, Brussels, Corsair, Tap Portugal, United, Air Europa, Virgin Atlantic $537
New York to Orlando American, JetBlue, Spirit, United $120
Boston to Vancouver Cape Air, American, Air Canada, Alaska, JetBlue, Sun Country, United, Virgin America, WestJet $298
New York to Miami American, Frontier, United $95
New York to Toronto American, Air Canada, Alaska, JetBlue, Porter, United, WestJet $183

Airlines Flying from Boston to Seattle (BOS to SEA)

Below are the different airlines that fly from Boston to Seattle with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Boston to Seattle.

Boston to Seattle
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American JFK X X X X X X X
Alaska - X X X X X X X
Alaska PDX X X X X X X X
JetBlue - X X X X X X X
JetBlue JFK X X X X X X X
Delta DTW X X X X X X X
United EWR X X X X X X X
Virgin America SFO X X X X X X X
Southwest BWI X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Boston and Seattle, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Boston to Seattle Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Boston to Seattle?
Answer: The average Boston to Seattle flight time is 6 hours and 26 minutes.
Question: How many miles are there between Boston and Seattle?
Answer: The distance from Boston to Seattle is 2488 miles.
Question: How common are direct flights from Boston to Seattle?
Answer: There are 25 direct flights from Boston to Seattle.
Question: What is the most popular airline for non-stop flights from Boston to Seattle?
Answer: JetBlue Airways provides 52% of the non-stop flights between Boston and Seattle.
Question: What are the most popular connecting cities when flying from Boston to Seattle?
Answer: New York, NY
Boston (BOS) To Seattle, WA (SEA) Flights: Cheap Flights From Boston To Seattle | FareCompare.