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Seattle Tacoma Intl. Airport to Boston Logan International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to Boston Logan International Airport over the next 90 days, with one-way fares from MYR 597 and round-trip from MYR 1,369. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 11:55 PM
        5h 21m
        Nonstop
        BOS 8:16 AM
        Seattle - Boston | Tue, Oct 20 | Jetblue Airways
        BOS 7:20 PM
        6h 22m
        Nonstop
        SEA 10:42 PM
        Boston - Seattle | Fri, Oct 23 | Jetblue Airways
        MYR 1,369 MYR 1,675
        18% off
        18% off
        MYR 1,675 MYR 1,369
      • SEA 11:55 PM
        5h 21m
        Nonstop
        BOS 8:16 AM
        Seattle - Boston | Fri, Oct 16 | Jetblue Airways
        BOS 7:20 PM
        6h 22m
        Nonstop
        SEA 10:42 PM
        Boston - Seattle | Tue, Oct 20 | Jetblue Airways
        MYR 1,369 MYR 1,675
        18% off
        18% off
        MYR 1,675 MYR 1,369
      • SEA 11:55 PM
        5h 21m
        Nonstop
        BOS 8:16 AM
        Seattle - Boston | Sun, Oct 18 | Jetblue Airways
        BOS 7:20 PM
        6h 22m
        Nonstop
        SEA 10:42 PM
        Boston - Seattle | Thu, Oct 22 | Jetblue Airways
        MYR 1,370 MYR 1,675
        18% off
        18% off
        MYR 1,675 MYR 1,370
      • SEA 11:55 PM
        5h 21m
        Nonstop
        BOS 8:16 AM
        Seattle - Boston | Sat, Oct 17 | Jetblue Airways
        BOS 7:20 PM
        6h 22m
        Nonstop
        SEA 10:42 PM
        Boston - Seattle | Wed, Oct 21 | Jetblue Airways
        MYR 1,371
        18% off
        MYR 1,675 MYR 1,371
      • SEA 11:55 PM
        5h 21m
        Nonstop
        BOS 8:16 AM
        Seattle - Boston | Mon, Oct 19 | Jetblue Airways
        BOS 7:20 PM
        6h 22m
        Nonstop
        SEA 10:42 PM
        Boston - Seattle | Fri, Oct 23 | Jetblue Airways
        MYR 1,371
        18% off
        MYR 1,675 MYR 1,371
      • SEA 3:36 PM
        5h 22m
        Nonstop
        BOS 11:58 PM
        Seattle - Boston | Fri, Nov 13 | Alaska Airlines
        BOS 7:13 AM
        6h 26m
        Nonstop
        SEA 10:39 AM
        Boston - Seattle | Sun, Nov 15 | Alaska Airlines
        MYR 1,420
        15% off
        MYR 1,675 MYR 1,420
      • SEA 8:48 PM
        16h 53m
        1 stop
        BOS 4:41 PM
        Seattle - Boston | Mon, Nov 2 | Alaska Airlines
        BOS 7:13 AM
        6h 26m
        Nonstop
        SEA 10:39 AM
        Boston - Seattle | Thu, Nov 5 | Alaska Airlines
        MYR 1,382
        17% off
        MYR 1,675 MYR 1,382
      • SEA 2:59 PM
        11h 29m
        1 stop
        BOS 5:28 AM
        Seattle - Boston | Tue, Oct 27 | Alaska Airlines
        BOS 7:13 AM
        6h 26m
        Nonstop
        SEA 10:39 AM
        Boston - Seattle | Tue, Nov 3 | Alaska Airlines
        MYR 1,407
        16% off
        MYR 1,675 MYR 1,407
      • SEA 10:20 AM
        16h 8m
        1 stop
        BOS 5:28 AM
        Seattle - Boston | Wed, Oct 28 | Alaska Airlines
        BOS 7:03 AM
        13h 52m
        1 stop
        SEA 5:55 PM
        Boston - Seattle | Tue, Nov 3 | Alaska Airlines
        MYR 1,409
        16% off
        MYR 1,675 MYR 1,409
      • SEA 7:13 AM
        19h 27m
        1 stop
        BOS 5:40 AM
        Seattle - Boston | Thu, Nov 19 | Alaska Airlines
        BOS 7:00 AM
        6h 28m
        Nonstop
        SEA 10:28 AM
        Boston - Seattle | Thu, Nov 26 | Alaska Airlines
        MYR 1,419
        15% off
        MYR 1,675 MYR 1,419
      • SEA 2:59 PM
        11h 22m
        1 stop
        BOS 5:21 AM
        Seattle - Boston | Sat, Oct 24 | Alaska Airlines
        BOS 7:51 AM
        10h 26m
        1 stop
        SEA 3:17 PM
        Boston - Seattle | Wed, Oct 28 | Alaska Airlines
        MYR 1,422
        15% off
        MYR 1,675 MYR 1,422
      • SEA 11:53 PM
        5h 21m
        Nonstop
        BOS 8:14 AM
        Seattle - Boston | Sat, Oct 24 | Jetblue Airways
        BOS 6:30 AM
        10h 17m
        1 stop
        SEA 1:47 PM
        Boston - Seattle | Wed, Oct 28 | American Airlines
        MYR 1,423
        15% off
        MYR 1,675 MYR 1,423
      • SEA 1:00 PM
        17h 25m
        1 stop
        BOS 2:00 PM
        Seattle - Boston | Mon, Oct 12 | Normal Airline
        BOS 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Boston - Seattle | Wed, Oct 14 | Normal Airline
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      • Cheapest nonstop
        SEA 11:40 PM
        5h 22m
        Nonstop
        BOS 8:02 AM
        Seattle - Boston | Thu, Nov 5 | Alaska Airlines
        MYR 618 MYR 842
        27% off
        27% off
        MYR 842 MYR 618
      • SEA 10:00 PM
        5h 33m
        Nonstop
        BOS 6:33 AM
        Seattle - Boston | Thu, Nov 5 | Delta Air Lines
        MYR 628 MYR 842
        25% off
        25% off
        MYR 842 MYR 628
      • SEA 4:27 PM
        21h 38m
        1 stop
        BOS 5:05 PM
        Seattle - Boston | Sat, Oct 31 | Frontier Airlines
        MYR 597 MYR 842
        28% off
        28% off
        MYR 842 MYR 597
      • SEA 10:15 PM
        9h 26m
        1 stop
        BOS 10:41 AM
        Seattle - Boston | Sun, Oct 25 | Jetblue Airways
        MYR 597
        28% off
        MYR 842 MYR 597
      • SEA 10:48 PM
        8h 43m
        1 stop
        BOS 10:31 AM
        Seattle - Boston | Thu, Oct 22 | American Airlines
        MYR 682
        19% off
        MYR 842 MYR 682
      • SEA 2:59 PM
        11h 22m
        1 stop
        BOS 5:21 AM
        Seattle - Boston | Thu, Oct 22 | Alaska Airlines
        MYR 699
        17% off
        MYR 842 MYR 699
      • SEA 7:58 PM
        8h 22m
        1 stop
        BOS 7:20 AM
        Seattle - Boston | Thu, Nov 19 | Alaska Airlines
        MYR 706
        16% off
        MYR 842 MYR 706
      • SEA 1:00 PM
        17h 25m
        1 stop
        BOS 2:00 PM
        Seattle - Boston | Mon, Oct 12 | Normal Airline
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Displayed flight fares from Seattle Tacoma Intl. Airport to Boston Logan International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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

What is the cheapest month for one-way flights from Seattle Tacoma Intl. Airport to Boston Logan International Airport?

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to Boston Logan International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Seattle Tacoma Intl. Airport to Boston Logan International Airport, the best time to buy is in April, with an average price of MYR 885. You’ll want to avoid January, when the average price can reach as high as MYR 1,430.

MYR 1,430
MYR 1,158
MYR 885
MYR 613
    Cheapest
  • MYR 964
    Oct
  • MYR 993
    Nov
  • MYR 1,000
    Dec
  • MYR 1,430
    Jan
  • MYR 1,087
    Feb
  • MYR 1,017
    Mar
  • MYR 885
    Apr
  • MYR 917
    May
  • MYR 1,139
    Jun
  • MYR 1,187
    Jul
  • MYR 1,314
    Aug
  • MYR 1,131
    Sep

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

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. 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 day to depart from Seattle Tacoma Intl. Airport to Boston Logan International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

MYR 1,207
MYR 1,074
MYR 940
MYR 807
  • MYR 1,136
    Mon
  • MYR 940
    Tue
  • MYR 1,057
    Wed
  • MYR 1,147
    Thu
  • MYR 1,089
    Fri
  • MYR 1,207
    Sat
  • MYR 1,109
    Sun

Which airline offers the cheapest flights from Seattle Tacoma Intl. Airport to Boston Logan International Airport?

The cheapest airline flying from Seattle Tacoma Intl. Airport to Boston Logan International Airport is Frontier Airlines (from MYR 597) among 9 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From MYR 597
Jetblue Airways
From MYR 597
Alaska Airlines
From MYR 618
Delta Air Lines
From MYR 628
American Airlines
From MYR 682
Hahn Air
From MYR 723
United Airlines
From MYR 808
Sun Country Airlines
From MYR 945
WestJet
From MYR 1,342

Find more flights and airlines

What is the flight schedule from Seattle Tacoma Intl. 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. DL473

    Seattle Tacoma Intl. Airport

    10:00 PM

    SEA

    5h 33m

    6:33 AM

    BOS

    S M T W T F S
    Search

  2. AA2886

    Seattle Tacoma Intl. Airport

    10:48 PM

    SEA

    5h 12m

    Nonstop

    7:00 AM

    PHL

    S M T W T F S
    Search

  3. AA2780

    Philadelphia International Airport

    8:50 AM

    PHL

    1h 41m

    Nonstop

    10:31 AM

    BOS

    S M T W T F S

  4. AA3234

    Seattle Tacoma Intl. Airport

    10:31 AM

    SEA

    4h 24m

    Nonstop

    4:55 PM

    ORD

    S M T W T F S
    Search

  5. AA3107

    O'Hare Intl. Airport

    7:08 PM

    ORD

    2h 30m

    Nonstop

    10:38 PM

    BOS

    S M T W T F S

  6. AA2379

    Seattle Tacoma Intl. Airport

    11:28 PM

    SEA

    3h 57m

    Nonstop

    5:25 AM

    ORD

    S M T W T F S
    Search

  7. AA802

    O'Hare Intl. Airport

    8:30 AM

    ORD

    2h 37m

    Nonstop

    12:07 PM

    BOS

    S M T W T F S

  8. AS791

    Seattle Tacoma Intl. Airport

    4:54 PM

    SEA

    2h 49m

    Nonstop

    7:43 PM

    SAN

    S M T W T F S
    Search

  9. AS255

    San Diego International Airport

    8:34 PM

    SAN

    5h 47m

    Nonstop

    5:21 AM

    BOS

    S M T W T F S

  10. AA986

    Seattle Tacoma Intl. Airport

    8:24 AM

    SEA

    5h 18m

    Nonstop

    4:42 PM

    PHL

    S M T - T F S
    Search

  11. AA1874

    Philadelphia International Airport

    8:15 PM

    PHL

    1h 34m

    Nonstop

    9:49 PM

    BOS

    S M T W T F S

  12. AS765

    Seattle Tacoma Intl. Airport

    3:00 PM

    SEA

    2h 45m

    Nonstop

    5:45 PM

    SAN

    S M T W T F S
    Search

  13. AS255

    San Diego International Airport

    8:34 PM

    SAN

    5h 47m

    Nonstop

    5:21 AM

    BOS

    S M T W T F S

  14. AA3583

    Seattle Tacoma Intl. Airport

    6:00 AM

    SEA

    3h 6m

    Nonstop

    9:06 AM

    PHX

    S M T W T F S
    Search

  15. AA2228

    Phoenix Sky Harbor International Airport

    12:30 PM

    PHX

    4h 59m

    Nonstop

    8:29 PM

    BOS

    S M T W T F S
Find more flights and airlines

About Seattle Tacoma Intl. Airport and Boston Logan International Airport

Learn about Seattle Tacoma Intl. Airport (SEA) and Boston Logan International Airport (BOS) — including location, terminals, transportation, and travel tips.

Flight distance 4,008.36 km
Cheapest one-way ticket price MYR 597
Cheapest return ticket price MYR 1,369

FAQs for Seattle Tacoma Intl. Airport to Boston Logan International Airport Flights

  • How long is the flight from Seattle Tacoma Intl. Airport to Boston Logan International Airport?

    Seattle Tacoma Intl. Airport to Boston Logan International Airport takes about 4 hours 48 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 7 daily flights from Seattle Tacoma Intl. Airport (SEA) to Boston Logan International Airport (BOS).
  • The earliest flight from Seattle Tacoma Intl. Airport to Boston Logan International Airport departs at 07:16, and the last departs at 23:42, with about 10 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle Tacoma Intl. Airport (SEA) to Boston Logan International Airport (BOS) is quite popular. Without considering departure times or holidays, tickets cost around MYR 1,249 in October, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 07:20 and arrives in Boston Logan International Airport (BOS) at 15:50.
  • The latest flight departs from Seattle Tacoma Intl. Airport (SEA) at 21:40 and arrives in Boston Logan International Airport (BOS) at 06:01.
  • American Airlines is a very popular airline operating an average of 2138 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to Boston Logan International Airport currently start from MYR 597, and round-trip fares start from MYR 1,369. The current lowest fare is a Frontier Airlines flight departing on Sat, Oct 31; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines and Jetblue Airways operate direct flights from Seattle Tacoma Intl. Airport to Boston Logan International Airport, with an average flight time of 4 hours 35 minutes, and around 61 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle Tacoma Intl. Airport to Boston Logan International Airport is MYR 1,025. Prices may vary depending on the departure date, airline, and availability.
  • Jetblue Airways and Condor are the most popular budget airlines flying from Seattle Tacoma Intl. Airport to Boston Logan International Airport, with one-way fares starting from MYR 597. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle Tacoma Intl. Airport to Boston Logan International Airport operates around 62 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Jetblue Airways. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle Tacoma Intl. Airport and Boston Logan International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, 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 were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled 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 check the customer support pages.