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Seattle-Tacoma International Airport to Boston Logan International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle-Tacoma International Airport to Boston Logan International Airport over the next 90 days, with one-way fares from VND 4,140,000 and round-trip from VND 8,515,000. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 23:55
        5h 21m
        Direct
        BOS 08:16
        Seattle - Boston | Sun, Nov 1 | Jetblue Airways
        BOS 19:20
        6h 22m
        Direct
        SEA 22:42
        Boston - Seattle | Thu, Nov 5 | Jetblue Airways
        VND 9,709,000 VND 11,442,000
        15% off
        15% off
        VND 11,442,000 VND 9,709,000
      • SEA 23:55
        5h 21m
        Direct
        BOS 08:16
        Seattle - Boston | Fri, Oct 30 | Jetblue Airways
        BOS 19:20
        6h 22m
        Direct
        SEA 22:42
        Boston - Seattle | Mon, Nov 2 | Jetblue Airways
        VND 9,725,000 VND 11,442,000
        15% off
        15% off
        VND 11,442,000 VND 9,725,000
      • SEA 22:45
        8h 39m
        1 stop
        BOS 10:24
        Seattle - Boston | Mon, Oct 19 | American Airlines
        BOS 06:00
        8h 39m
        1 stop
        SEA 11:39
        Boston - Seattle | Thu, Oct 22 | American Airlines
        VND 8,515,000 VND 11,442,000
        26% off
        26% off
        VND 11,442,000 VND 8,515,000
      • SEA 23:57
        7h 32m
        1 stop
        BOS 10:29
        Seattle - Boston | Sat, Oct 17 | American Airlines
        BOS 16:59
        9h
        1 stop
        SEA 22:59
        Boston - Seattle | Sat, Oct 24 | American Airlines
        VND 8,751,000
        24% off
        VND 11,442,000 VND 8,751,000
      • SEA 14:59
        11h 22m
        1 stop
        BOS 05:21
        Seattle - Boston | Tue, Nov 10 | Alaska Airlines
        BOS 07:51
        10h 26m
        1 stop
        SEA 15:17
        Boston - Seattle | Sat, Nov 14 | Alaska Airlines
        VND 9,048,000
        21% off
        VND 11,442,000 VND 9,048,000
      • SEA 08:24
        7h 31m
        1 stop
        BOS 18:55
        Seattle - Boston | Tue, Nov 10 | American Airlines
        BOS 18:16
        9h 20m
        1 stop
        SEA 00:36
        Boston - Seattle | Sat, Nov 14 | American Airlines
        VND 9,319,000
        19% off
        VND 11,442,000 VND 9,319,000
      • SEA 16:54
        9h 27m
        1 stop
        BOS 05:21
        Seattle - Boston | Sat, Nov 7 | Alaska Airlines
        BOS 05:00
        8h 30m
        1 stop
        SEA 10:30
        Boston - Seattle | Wed, Nov 11 |
        VND 9,431,000
        18% off
        VND 11,442,000 VND 9,431,000
      • SEA 12:49
        7h 50m
        1 stop
        BOS 23:39
        Seattle - Boston | Mon, Oct 26 | American Airlines
        BOS 08:23
        8h 54m
        1 stop
        SEA 14:17
        Boston - Seattle | Sat, Oct 31 | American Airlines
        VND 9,442,000
        17% off
        VND 11,442,000 VND 9,442,000
      • SEA 16:54
        9h 27m
        1 stop
        BOS 05:21
        Seattle - Boston | Sun, Nov 8 | Alaska Airlines
        BOS 07:51
        13h 11m
        1 stop
        SEA 18:02
        Boston - Seattle | Sun, Nov 15 | Alaska Airlines
        VND 9,469,000
        17% off
        VND 11,442,000 VND 9,469,000
      • SEA 13:00
        17h 25m
        1 stop
        BOS 14:00
        Seattle - Boston | Mon, Oct 12 | Normal Airline
        BOS 15:00
        6h
        Direct
        SEA 16:00
        Boston - Seattle | Wed, Oct 14 | Normal Airline
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      • Cheapest nonstop
        SEA 23:55
        5h 24m
        Direct
        BOS 08:19
        Seattle - Boston | Mon, Oct 12 | Jetblue Airways
        VND 4,140,000 VND 5,066,000
        18% off
        18% off
        VND 5,066,000 VND 4,140,000
      • SEA 11:30
        5h 53m
        Direct
        BOS 20:23
        Seattle - Boston | Wed, Oct 14 | Jetblue Airways
        VND 4,217,000 VND 5,066,000
        17% off
        17% off
        VND 5,066,000 VND 4,217,000
      • SEA 17:59
        10h 32m
        1 stop
        BOS 07:31
        Seattle - Boston | Wed, Oct 14 | Alaska Airlines
        VND 4,213,000 VND 5,066,000
        17% off
        17% off
        VND 5,066,000 VND 4,213,000
      • SEA 16:54
        9h 27m
        1 stop
        BOS 05:21
        Seattle - Boston | Tue, Oct 27 | Alaska Airlines
        VND 4,248,000
        16% off
        VND 5,066,000 VND 4,248,000
      • SEA 14:59
        11h 22m
        1 stop
        BOS 05:21
        Seattle - Boston | Fri, Oct 23 | Alaska Airlines
        VND 4,252,000
        16% off
        VND 5,066,000 VND 4,252,000
      • SEA 14:59
        11h 22m
        1 stop
        BOS 05:21
        Seattle - Boston | Tue, Oct 20 | Alaska Airlines
        VND 4,252,000
        16% off
        VND 5,066,000 VND 4,252,000
      • SEA 10:17
        11h 13m
        1 stop
        BOS 00:30
        Seattle - Boston | Sun, Oct 11 | American Airlines
        VND 4,260,000
        16% off
        VND 5,066,000 VND 4,260,000
      • SEA 16:54
        9h 27m
        1 stop
        BOS 05:21
        Seattle - Boston | Tue, Nov 10 | Alaska Airlines
        VND 4,263,000
        16% off
        VND 5,066,000 VND 4,263,000
      • SEA 22:48
        8h 43m
        1 stop
        BOS 10:31
        Seattle - Boston | Tue, Nov 10 | American Airlines
        VND 4,298,000
        15% off
        VND 5,066,000 VND 4,298,000
      • SEA 08:24
        9h 21m
        1 stop
        BOS 20:45
        Seattle - Boston | Tue, Oct 27 | American Airlines
        VND 4,306,000
        15% off
        VND 5,066,000 VND 4,306,000
      • SEA 13:00
        17h 25m
        1 stop
        BOS 14:00
        Seattle - Boston | Mon, Oct 12 | Normal Airline
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Flight fares from Seattle-Tacoma International Airport to Boston Logan International Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest 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, if you’re looking for a low-cost one-way ticket from Seattle-Tacoma International Airport to Boston Logan International Airport, the best time to buy is in April, with an average price of VND 5,598,000. You’ll want to avoid January, when the average price can reach as high as VND 9,051,000.

VND 9,051,000
VND 7,324,500
VND 5,598,000
VND 3,871,500
    Cheapest
  • VND 6,101,000
    Oct
  • VND 6,286,000
    Nov
  • VND 6,331,000
    Dec
  • VND 9,051,000
    Jan
  • VND 6,880,000
    Feb
  • VND 6,435,000
    Mar
  • VND 5,598,000
    Apr
  • VND 5,801,000
    May
  • VND 7,206,000
    Jun
  • VND 7,513,000
    Jul
  • VND 8,319,000
    Aug
  • VND 7,157,000
    Sep

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 day to depart from Seattle-Tacoma International 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.

VND 7,639,000
VND 6,793,000
VND 5,947,000
VND 5,101,000
  • VND 7,193,000
    Mon
  • VND 5,947,000
    Tue
  • VND 6,691,000
    Wed
  • VND 7,257,000
    Thu
  • VND 6,892,000
    Fri
  • VND 7,639,000
    Sat
  • VND 7,018,000
    Sun

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

The cheapest airline flying from Seattle-Tacoma International Airport to Boston Logan International Airport is Jetblue Airways (from VND 4,140,000) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Jetblue Airways
From VND 4,140,000
Alaska Airlines
From VND 4,213,000
American Airlines
From VND 4,260,000
Hahn Air
From VND 4,577,000
Delta Air Lines
From VND 4,901,000
United Airlines
From VND 5,458,000
Sun Country Airlines
From VND 5,972,000

Find more flights and airlines

What is the 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. DL473

    Seattle-Tacoma International Airport

    22:00

    SEA

    5h 33m

    06:33

    BOS

    S M T W T F S
    Search

  2. AA2886

    Seattle-Tacoma International Airport

    22:48

    SEA

    5h 12m

    Direct

    07:00

    PHL

    S M T W T F S
    Search

  3. AA2780

    Philadelphia International Airport

    08:50

    PHL

    1h 41m

    Direct

    10:31

    BOS

    S M T W T F S

  4. AA3234

    Seattle-Tacoma International Airport

    10:31

    SEA

    4h 24m

    Direct

    16:55

    ORD

    S M T W T F S
    Search

  5. AA3107

    O'Hare International Airport

    19:08

    ORD

    2h 30m

    Direct

    22:38

    BOS

    S M T W T F S

  6. AA2379

    Seattle-Tacoma International Airport

    23:28

    SEA

    3h 57m

    Direct

    05:25

    ORD

    S M T W T F S
    Search

  7. AA802

    O'Hare International Airport

    08:30

    ORD

    2h 37m

    Direct

    12:07

    BOS

    S M T W T F S

  8. AS791

    Seattle-Tacoma International Airport

    16:54

    SEA

    2h 49m

    Direct

    19:43

    SAN

    S M T W T F S
    Search

  9. AS255

    San Diego International Airport

    20:34

    SAN

    5h 47m

    Direct

    05:21

    BOS

    S M T W T F S

  10. AA986

    Seattle-Tacoma International Airport

    08:24

    SEA

    5h 18m

    Direct

    16:42

    PHL

    S M T - T F S
    Search

  11. AA1874

    Philadelphia International Airport

    20:15

    PHL

    1h 34m

    Direct

    21:49

    BOS

    S M T W T F S

  12. AS765

    Seattle-Tacoma International Airport

    15:00

    SEA

    2h 45m

    Direct

    17:45

    SAN

    S M T W T F S
    Search

  13. AS255

    San Diego International Airport

    20:34

    SAN

    5h 47m

    Direct

    05:21

    BOS

    S M T W T F S

  14. AA3583

    Seattle-Tacoma International Airport

    06:00

    SEA

    3h 6m

    Direct

    09:06

    PHX

    S M T W T F S
    Search

  15. AA2228

    Phoenix Sky Harbor International Airport

    12:30

    PHX

    4h 59m

    Direct

    20:29

    BOS

    S M T W T F S
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About Seattle-Tacoma International Airport and Boston Logan International Airport

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

Flight distance 4,008.36km
Cheapest one-way ticket price VND 4,140,000
Cheapest return ticket price VND 8,515,000

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

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

    Seattle-Tacoma International 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 International Airport (SEA) to Boston Logan International Airport (BOS).
  • The earliest flight from Seattle-Tacoma International 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 International Airport (SEA) to Boston Logan International Airport (BOS) is quite popular. Without considering departure times or holidays, tickets cost around VND 7,908,000 in October, the most expensive month to book this route.
  • The earliest flight departs from Seattle-Tacoma International Airport (SEA) at 07:30 and arrives in Boston Logan International Airport (BOS) at 16:01.
  • The latest flight departs from Seattle-Tacoma International Airport (SEA) at 21:40 and arrives in Boston Logan International Airport (BOS) at 05:47.
  • American Airlines is a very popular airline operating an average of 2138 flights per month.
  • One-way flights from Seattle-Tacoma International Airport to Boston Logan International Airport currently start from VND 4,140,000, and round-trip fares start from VND 8,515,000. The current lowest fare is a Jetblue Airways flight departing on Mon, Oct 12; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines and Jetblue Airways operate direct flights from Seattle-Tacoma International 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 International Airport to Boston Logan International Airport is VND 6,485,000. 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 International Airport to Boston Logan International Airport, with one-way fares starting from VND 4,140,000. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle-Tacoma International 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 International 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.

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

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, 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 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.