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Cheap Flights from Seattle to Boston, MA, United States - SEA to BOS Last modified: May 27, 2016 7:52 AM

Popular flights from Seattle to Boston Last modified: May 27, 2016 7:52 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Sep 2, 2016 Sep 4, 2016 $325
Sep 2, 2016 Sep 3, 2016 $325
Sep 6, 2016 Sep 13, 2016 $325
Sep 10, 2016 Sep 15, 2016 $325
Sep 10, 2016 Sep 24, 2016 $325
American Airlines
Departure Date Return Date Lowest Price
Sep 6, 2016 Sep 11, 2016 $317
Sep 6, 2016 Sep 13, 2016 $317
Sep 10, 2016 Sep 24, 2016 $317
Sep 10, 2016 Sep 15, 2016 $317
Sep 10, 2016 Sep 17, 2016 $317
JetBlue Airways
Departure Date Return Date Lowest Price
Sep 7, 2016 Sep 11, 2016 $325
Sep 9, 2016 Sep 14, 2016 $325
Sep 9, 2016 Sep 12, 2016 $325
Sep 9, 2016 Sep 11, 2016 $325
Sep 14, 2016 Sep 21, 2016 $325
Sun Country Airlines
Departure Date Return Date Lowest Price
Jun 3, 2016 Jun 7, 2016 $300
United Airlines
Departure Date Return Date Lowest Price
Sep 8, 2016 Sep 11, 2016 $301
Sep 8, 2016 Sep 14, 2016 $301
Sep 8, 2016 Sep 15, 2016 $301
Sep 13, 2016 Sep 20, 2016 $301
Sep 16, 2016 Sep 18, 2016 $301
Virgin America
Departure Date Return Date Lowest Price
Sep 15, 2016 Sep 18, 2016 $315
Sep 16, 2016 Sep 18, 2016 $315

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

We have collected flight cost data from across the web for travel from Seattle to Boston, and have found the average flight price for this trip to be $330.

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

Airlines can adjust prices for plane tickets from Seattle to Boston 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 Seattle to Boston

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

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $478 $355
7-14 days $393 $300
14-21 days $413 $371
21-30 days $413 $475
30-60 days $467 $348
60-90 days $406 $317
90+ days $322 $301

Cheapest Day To Fly from Seattle to Boston

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$322 $320 $314 $343 $300 $330 $380

Lowest Fares Chart By Month from Seattle to Boston

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Seattle Boston United 5/31/16 6/8/16 1 $355
June Seattle Boston Sun Country 6/3/16 6/7/16 1 $300
July Seattle Boston United 7/12/16 7/16/16 1 $348
August Seattle Boston United 8/26/16 8/30/16 1 $305
September Seattle Boston United 9/8/16 9/11/16 1 $301
October Seattle Boston American 10/15/16 10/21/16 1 $310
November Seattle Boston American 11/9/16 11/15/16 1 $310
December Seattle Boston American 12/1/16 12/8/16 1 $305

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

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 Seattle to Boston.

Next 30 Days

SunMonTueWedThuFriSat
29 30 31 1 2 3 4
$447
5 6 7 8 9 10 11
$447 $511
12 13 14 15 16 17 18
$511 $447
19 20 21 22 23 24 25
$447 $467
26 27 28 29 30 1 2
$467 $617
3 4 5 6 7 8 9
$617

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

Your Seattle to Boston 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 Seattle to Boston is $404.

The average price for non-stop flights from Seattle to Boston is $447.

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

Nonstop Flight Details from Seattle to Boston
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 3 3 3 3 3 3 3 09:25 23:05
JetBlue 3 3 3 3 3 3 3 06:25 23:26
Delta 1 1 1 1 1 1 1 11:42 11:42

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

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 Seattle to Boston. 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 Seattle to Boston is $200.

The average price for round trip flights from Seattle to Boston is $388.

More Cheap Flights

FlightsAirlineLowest Price
Portland to Boston American, Alaska, JetBlue, Spirit, Sun Country, United, Virgin America $305
Vancouver to Boston Pacific Coastal, American, Air Canada, Alaska, JetBlue, United, Virgin America, WestJet $263
Bellingham to Boston American, Alaska $473
Victoria to Boston Pacific Coastal, American, Air Canada, Alaska, JetBlue, United, Virgin America, WestJet $253
Pasco to Boston American, Alaska, United $337
Yakima to Boston American, Alaska Check Dates
Wenatchee to Boston American, Alaska $604
Comox to Boston Air Canada, Alaska, United, WestJet $567
Nanaimo to Boston American, Air Canada, Alaska, United, WestJet $516
Seattle to New York American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $327
Portland to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $273
Vancouver to New York Pacific Coastal, American, Air Canada, Alaska, JetBlue, Cathay, United, Virgin America, Sunwing, WestJet $297
Seattle to Manchester American, Alaska, United $258
Seattle to Providence American, Alaska, United $266
Seattle to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $177
Portland to Providence American, Alaska, United $330
Portland to Manchester American, Alaska, United $370
Seattle to Atlanta American, Alaska, Frontier, Spirit, United $317
Seattle to Newark American, Alaska, JetBlue, United, Virgin America $362
Seattle to Hartford American, Alaska, United $396
Seattle to Philadelphia American, Alaska, JetBlue, Frontier, Spirit, United $262
Seattle to Portland American, Alaska, JetBlue, United $342
Seattle to Washington American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $244
Portland to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $118
Portland to Hartford American, Alaska, United $384
Bellingham to New York American, Alaska $432
Portland to Newark American, Alaska, JetBlue, United, Virgin America $335
Seattle to Dallas - Ft Worth American, Alaska, Frontier, Spirit, Sun Country, United, Virgin America $235
Vancouver to Providence American, Air Canada, Alaska, United, WestJet $409
Portland to Portland American, Alaska, JetBlue, United $453

Airlines Flying from Seattle to Boston (SEA to BOS) Number of flights searched: 264Last modified: May 27, 2016 7:52 AM

Below are the different airlines that fly from Seattle to Boston 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 Seattle to Boston.

Seattle to Boston
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American ORD X X X X X X X
Alaska - X X X X X X X
JetBlue - X X X X X X X
JetBlue LGB X X X X X X X
Delta - X X X X X X X
Delta MSP X X X X X X X
Sun Country MSP X X X X X X X
United EWR X X X X X X X
Virgin America LAX X X X X X X X
Southwest MKE X X X X X X X

Airports for Your Route

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

Seattle to Boston Flight Questions

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

Question: How long is a direct flight from Seattle to Boston?
Answer: The average Seattle to Boston flight time is 5 hours and 20 minutes.
Question: How many miles are there between Seattle and Boston?
Answer: The distance from Seattle to Boston is 2488 miles.
Question: How common are direct flights from Seattle to Boston?
Answer: There are 49 direct flights from Seattle to Boston.
Question: What is the most popular airline for non-stop flights from Seattle to Boston?
Answer: JetBlue Airways provides 42% of the non-stop flights between Seattle and Boston.
Question: What are the most popular connecting cities when flying from Seattle to Boston?
Answer: New York, NY
Seattle (SEA) To Boston, MA (BOS) Flights: Cheap Flights From Seattle To Boston | FareCompare.