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Seattle-Tacoma International Airport to Boston Logan International Airport flight

Search for flights from Seattle to Boston and check out affordable one-way and round-trip options.

      • Cheapest nonstop
        SEA 23:13
        5h 22m
        Direct
        BOS 07:35
        Seattle - Boston | Wed, Aug 26 | Delta Air Lines
        BOS 19:59
        6h 13m
        Direct
        SEA 23:12
        Boston - Seattle | Tue, Sep 1 | Alaska Airlines
        PLN 1,155 PLN 1,370
        16% off
        16% off
        PLN 1,370 PLN 1,155
      • SEA 05:10
        8h 36m
        1 stop
        BOS 16:46
        Seattle - Boston | Wed, Aug 26 | American Airlines
        BOS 19:59
        6h 13m
        Direct
        SEA 23:12
        Boston - Seattle | Wed, Sep 2 | Alaska Airlines
        PLN 1,125 PLN 1,370
        18% off
        18% off
        PLN 1,370 PLN 1,125
      • SEA 05:10
        11h 4m
        1 stop
        BOS 19:14
        Seattle - Boston | Sat, Aug 29 | American Airlines
        BOS 19:59
        6h 13m
        Direct
        SEA 23:12
        Boston - Seattle | Wed, Sep 2 | Alaska Airlines
        PLN 1,126 PLN 1,370
        18% off
        18% off
        PLN 1,370 PLN 1,126
      • SEA 18:15
        8h 44m
        1 stop
        BOS 05:59
        Seattle - Boston | Wed, Sep 2 | United Airlines
        BOS 10:38
        8h 29m
        1 stop
        SEA 16:07
        Boston - Seattle | Sun, Sep 6 | United Airlines
        PLN 1,148
        16% off
        PLN 1,370 PLN 1,148
      • SEA 21:58
        8h 49m
        1 stop
        BOS 09:47
        Seattle - Boston | Mon, Aug 31 | American Airlines
        BOS 15:20
        10h 36m
        1 stop
        SEA 22:56
        Boston - Seattle | Sat, Sep 5 | American Airlines
        PLN 1,184
        14% off
        PLN 1,370 PLN 1,184
      • SEA 22:28
        7h 18m
        1 stop
        BOS 08:46
        Seattle - Boston | Sun, Aug 30 | American Airlines
        BOS 19:59
        6h 13m
        Direct
        SEA 23:12
        Boston - Seattle | Wed, Sep 2 | Alaska Airlines
        PLN 1,246
        9% off
        PLN 1,370 PLN 1,246
      • SEA 13:00
        17h 25m
        1 stop
        BOS 14:00
        Seattle - Boston | Sat, Jul 11 | Normal Airline
        BOS 15:00
        6h
        Direct
        SEA 16:00
        Boston - Seattle | Mon, Jul 13 | Normal Airline
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      • Cheapest nonstop
        SEA 15:55
        5h 28m
        Direct
        BOS 00:23
        Seattle - Boston | Fri, Aug 14 | Delta Air Lines
        PLN 606 PLN 666
        9% off
        9% off
        PLN 666 PLN 606
      • SEA 18:15
        8h 44m
        1 stop
        BOS 05:59
        Seattle - Boston | Wed, Aug 12 | United Airlines
        PLN 516 PLN 666
        23% off
        23% off
        PLN 666 PLN 516
      • SEA 23:00
        7h 51m
        1 stop
        BOS 09:51
        Seattle - Boston | Wed, Jul 22 | United Airlines
        PLN 531 PLN 666
        20% off
        20% off
        PLN 666 PLN 531
      • SEA 05:00
        11h 42m
        1 stop
        BOS 19:42
        Seattle - Boston | Tue, Sep 1 | American Airlines
        PLN 533
        20% off
        PLN 666 PLN 533
      • SEA 05:10
        11h 4m
        1 stop
        BOS 19:14
        Seattle - Boston | Wed, Sep 2 | American Airlines
        PLN 534
        20% off
        PLN 666 PLN 534
      • SEA 05:05
        11h 37m
        1 stop
        BOS 19:42
        Seattle - Boston | Tue, Aug 25 | American Airlines
        PLN 571
        14% off
        PLN 666 PLN 571
      • SEA 23:56
        7h 32m
        1 stop
        BOS 10:28
        Seattle - Boston | Tue, Jul 21 | American Airlines
        PLN 589
        12% off
        PLN 666 PLN 589
      • SEA 17:43
        9h 26m
        1 stop
        BOS 06:09
        Seattle - Boston | Sat, Sep 5 | Alaska Airlines
        PLN 594
        11% off
        PLN 666 PLN 594
      • SEA 16:45
        9h 55m
        1 stop
        BOS 05:40
        Seattle - Boston | Wed, Aug 12 | Alaska Airlines
        PLN 597
        10% off
        PLN 666 PLN 597
      • SEA 13:00
        17h 25m
        1 stop
        BOS 14:00
        Seattle - Boston | Sat, Jul 11 | Normal Airline
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Displayed flight fares from Seattle-Tacoma International Airport to Boston Logan International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Trip.com Price Insights: Flights from Seattle-Tacoma International Airport to Boston Logan International Airport

What is the cheapest month to fly from Seattle-Tacoma International Airport to Boston Logan International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Boston Logan International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Seattle-Tacoma International Airport to Boston Logan International Airport are usually in April, with an average price of PLN 806. It is best to avoid January, when the average price can reach PLN 1,302.

PLN 1,302
PLN 1,054
PLN 806
PLN 558
    Cheapest
  • PLN 834
    Jul
  • PLN 1,163
    Aug
  • PLN 893
    Sep
  • PLN 919
    Oct
  • PLN 905
    Nov
  • PLN 911
    Dec
  • PLN 1,302
    Jan
  • PLN 990
    Feb
  • PLN 926
    Mar
  • PLN 806
    Apr
  • PLN 835
    May
  • PLN 1,037
    Jun

What is the cheapest day of the week to fly from Seattle-Tacoma International Airport to Boston Logan International Airport?

The data is based on the past 12 months and shows the average ticket prices from Seattle-Tacoma International Airport to Boston Logan International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Seattle-Tacoma International Airport to Boston Logan International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Saturday as prices are typically highest on that day.

PLN 1,164
PLN 1,001
PLN 838
PLN 675
    Cheapest
  • PLN 962
    Mon
  • PLN 854
    Tue
  • PLN 838
    Wed
  • PLN 1,034
    Thu
  • PLN 888
    Fri
  • PLN 1,164
    Sat
  • PLN 1,044
    Sun

Selected Airlines from Seattle-Tacoma International Airport to Boston Logan International Airport

See which airlines fly from Seattle to Boston. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

United Airlines
From PLN 516
American Airlines
From PLN 533
Alaska Airlines
From PLN 594
Delta Air Lines
From PLN 606
Frontier Airlines
From PLN 648
Hahn Air
From PLN 654
Jetblue Airways
From PLN 683
WestJet
From PLN 839
Qatar Airways
From PLN 959

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Flight Schedule from Seattle-Tacoma International Airport to Boston Logan International Airport

Check the schedule for flights from Seattle to Boston and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS460

    Seattle-Tacoma International Airport

    15:29

    SEA

    5h 25m

    23:54

    BOS

    S M T W T F S
    Search

  2. DL474

    Seattle-Tacoma International Airport

    15:55

    SEA

    5h 25m

    00:20

    BOS

    S M T W T - S
    Search

  3. DL473

    Seattle-Tacoma International Airport

    22:00

    SEA

    5h 33m

    06:33

    BOS

    S M T W T F S
    Search

  4. AA2881

    Seattle-Tacoma International Airport

    23:56

    SEA

    4h 6m

    Direct

    06:02

    ORD

    S M T W T F S
    Search

  5. AA2968

    O'Hare International Airport

    06:54

    ORD

    2h 34m

    Direct

    10:28

    BOS

    S M T W T F S

  6. UA1274

    Seattle-Tacoma International Airport

    23:00

    SEA

    5h 18m

    Direct

    07:18

    EWR

    S M T W T F S
    Search

  7. UA1110

    Newark Liberty International Airport

    08:35

    EWR

    1h 16m

    Direct

    09:51

    BOS

    S M T W T F S

  8. UA1218

    Seattle-Tacoma International Airport

    19:04

    SEA

    2h 44m

    Direct

    22:48

    DEN

    S - T W T - S
    Search

  9. UA2656

    Denver International Airport

    23:59

    DEN

    3h 54m

    Direct

    05:53

    BOS

    S M T W T F S

  10. AS1348

    Seattle-Tacoma International Airport

    17:59

    SEA

    2h 57m

    Direct

    20:56

    SAN

    S M T W T F S
    Search

  11. AS255

    San Diego International Airport

    20:52

    SAN

    5h 48m

    Direct

    05:40

    BOS

    S M T W T F S

  12. AA381

    Seattle-Tacoma International Airport

    05:15

    SEA

    5h 3m

    Direct

    13:18

    CLT

    S M T W T F S
    Search

  13. AA2595

    Charlotte Douglas International Airport

    18:35

    CLT

    2h 21m

    Direct

    20:56

    BOS

    S M T W T F S

  14. AA2748

    Seattle-Tacoma International Airport

    05:05

    SEA

    3h 57m

    Direct

    11:02

    DFW

    S M T W T F S
    Search

  15. AA2306

    Dallas Fort Worth International Airport

    17:27

    DFW

    3h 50m

    Direct

    22:17

    BOS

    S M T W T F S
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Seattle-Tacoma International Airport to Boston Logan International Airport Flights Info

Flight distance 4,008.36km
Cheapest one-way ticket price PLN 516
Cheapest return ticket price PLN 1,125

FAQs for Seattle-Tacoma International Airport to Boston Logan International Airport Flights

  • How long does it take to fly from Seattle-Tacoma International Airport (SEA) to Boston Logan International Airport (BOS)?

    It takes around 5 hours 27 minutes to fly from Seattle-Tacoma International Airport (sea) to Boston Logan International Airport(bos).
  • There are around 7 daily flights from Seattle-Tacoma International Airport (SEA) to Boston Logan International Airport (BOS).
  • Tickets cost around PLN 823 in September, making it the cheapest month to book. Seattle-Tacoma International Airport (SEA) to Boston Logan International Airport (BOS) is a popular route, so don't forget to book your tickets in advance.
  • The route from Seattle-Tacoma International Airport (SEA) to Boston Logan International Airport (BOS) is quite popular. Without considering departure times or holidays, tickets cost around PLN 1,165 in July, the most expensive month to book this route.
  • American Airlines is a very popular airline operating an average of 2138 flights per month.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.