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Boston Logan International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Boston Logan International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from IDR 2,189,200 and round-trip from IDR 5,705,300. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        BOS 19:10
        6h 22m
        Direct
        SEA 22:32
        Boston - Seattle | Sun, Oct 11 | Jetblue Airways
        SEA 23:55
        5h 21m
        Direct
        BOS 08:16
        Seattle - Boston | Sun, Oct 18 | Jetblue Airways
        IDR 6,380,800 IDR 8,428,900
        24% off
        24% off
        IDR 8,428,900 IDR 6,380,800
      • BOS 15:15
        8h 50m
        1 stop
        SEA 21:05
        Boston - Seattle | Tue, Oct 6 | American Airlines
        SEA 23:57
        7h 36m
        1 stop
        BOS 10:33
        Seattle - Boston | Fri, Oct 9 | American Airlines
        IDR 5,705,300 IDR 8,428,900
        32% off
        32% off
        IDR 8,428,900 IDR 5,705,300
      • BOS 07:03
        13h 52m
        1 stop
        SEA 17:55
        Boston - Seattle | Sun, Nov 8 | Alaska Airlines
        SEA 20:59
        7h 21m
        1 stop
        BOS 07:20
        Seattle - Boston | Sun, Nov 15 | Alaska Airlines
        IDR 5,945,600 IDR 8,428,900
        28% off
        28% off
        IDR 8,428,900 IDR 5,945,600
      • BOS 06:00
        9h 9m
        1 stop
        SEA 12:09
        Boston - Seattle | Mon, Oct 12 | American Airlines
        SEA 23:59
        7h 34m
        1 stop
        BOS 10:33
        Seattle - Boston | Mon, Oct 19 | American Airlines
        IDR 5,966,900
        28% off
        IDR 8,428,900 IDR 5,966,900
      • BOS 07:03
        10h 42m
        1 stop
        SEA 14:45
        Boston - Seattle | Tue, Nov 17 | Alaska Airlines
        SEA 19:58
        8h 22m
        1 stop
        BOS 07:20
        Seattle - Boston | Sun, Nov 22 | Alaska Airlines
        IDR 6,068,400
        28% off
        IDR 8,428,900 IDR 6,068,400
      • BOS 06:00
        8h 40m
        1 stop
        SEA 11:40
        Boston - Seattle | Fri, Oct 9 | American Airlines
        SEA 21:42
        8h 41m
        1 stop
        BOS 09:23
        Seattle - Boston | Sun, Oct 11 | American Airlines
        IDR 6,071,100
        28% off
        IDR 8,428,900 IDR 6,071,100
      • BOS 16:48
        6h 15m
        Direct
        SEA 20:03
        Boston - Seattle | Tue, Oct 6 | Alaska Airlines
        SEA 08:49
        17h 32m
        1 stop
        BOS 05:21
        Seattle - Boston | Sun, Oct 11 | Alaska Airlines
        IDR 6,338,000
        25% off
        IDR 8,428,900 IDR 6,338,000
      • BOS 06:00
        8h 35m
        1 stop
        SEA 11:35
        Boston - Seattle | Tue, Nov 17 | American Airlines
        SEA 23:34
        7h 54m
        1 stop
        BOS 10:28
        Seattle - Boston | Sat, Nov 21 | American Airlines
        IDR 6,399,400
        24% off
        IDR 8,428,900 IDR 6,399,400
      • BOS 07:51
        10h 26m
        1 stop
        SEA 15:17
        Boston - Seattle | Mon, Oct 19 | Alaska Airlines
        SEA 16:54
        9h 27m
        1 stop
        BOS 05:21
        Seattle - Boston | Sat, Oct 24 | Alaska Airlines
        IDR 6,399,400
        24% off
        IDR 8,428,900 IDR 6,399,400
      • BOS 16:00
        8h 59m
        1 stop
        SEA 21:59
        Boston - Seattle | Sun, Nov 8 | American Airlines
        SEA 09:15
        7h 53m
        1 stop
        BOS 20:08
        Seattle - Boston | Sun, Nov 15 | American Airlines
        IDR 6,399,400
        24% off
        IDR 8,428,900 IDR 6,399,400
      • BOS 13:00
        17h 25m
        1 stop
        SEA 14:00
        Boston - Seattle | Sat, Oct 3 | Normal Airline
        SEA 15:00
        6h
        Direct
        BOS 16:00
        Seattle - Boston | Mon, Oct 5 | Normal Airline
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      • Cheapest nonstop
        BOS 18:59
        6h 39m
        Direct
        SEA 22:38
        Boston - Seattle | Wed, Oct 28 | Jetblue Airways
        IDR 2,808,600 IDR 4,035,900
        30% off
        30% off
        IDR 4,035,900 IDR 2,808,600
      • BOS 07:00
        6h 20m
        Direct
        SEA 10:20
        Boston - Seattle | Thu, Oct 29 | Alaska Airlines
        IDR 2,883,400 IDR 4,035,900
        28% off
        28% off
        IDR 4,035,900 IDR 2,883,400
      • BOS 18:30
        6h 34m
        Direct
        SEA 22:04
        Boston - Seattle | Thu, Oct 29 | Delta Air Lines
        IDR 2,918,100 IDR 4,035,900
        28% off
        28% off
        IDR 4,035,900 IDR 2,918,100
      • BOS 19:20
        6h 17m
        Direct
        SEA 22:37
        Boston - Seattle | Sun, Oct 4 | Jetblue Airways
        IDR 3,062,300
        24% off
        IDR 4,035,900 IDR 3,062,300
      • BOS 07:35
        29h 16m
        1 stop
        SEA 09:51
        Boston - Seattle | Sun, Nov 15 | Delta Air Lines
        IDR 2,189,200
        46% off
        IDR 4,035,900 IDR 2,189,200
      • BOS 06:00
        11h 52m
        1 stop
        SEA 14:52
        Boston - Seattle | Thu, Oct 29 | American Airlines
        IDR 2,587,000
        36% off
        IDR 4,035,900 IDR 2,587,000
      • BOS 15:00
        10h
        1 stop
        SEA 22:00
        Boston - Seattle | Sun, Nov 15 | American Airlines
        IDR 2,942,100
        27% off
        IDR 4,035,900 IDR 2,942,100
      • BOS 10:10
        9h 38m
        1 stop
        SEA 16:48
        Boston - Seattle | Wed, Oct 28 | American Airlines
        IDR 3,038,200
        25% off
        IDR 4,035,900 IDR 3,038,200
      • BOS 07:51
        13h 11m
        1 stop
        SEA 18:02
        Boston - Seattle | Thu, Oct 8 | Alaska Airlines
        IDR 3,078,300
        24% off
        IDR 4,035,900 IDR 3,078,300
      • BOS 14:58
        9h 38m
        1 stop
        SEA 21:36
        Boston - Seattle | Sun, Oct 4 | American Airlines
        IDR 3,107,600
        23% off
        IDR 4,035,900 IDR 3,107,600
      • BOS 13:00
        17h 25m
        1 stop
        SEA 14:00
        Boston - Seattle | Sat, Oct 3 | Normal Airline
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Displayed flight fares from Boston Logan International Airport to Seattle-Tacoma 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 Boston Logan International Airport to Seattle-Tacoma International Airport

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

The data is based on the past 12 months and shows the average one-way ticket prices from Boston Logan International Airport to Seattle-Tacoma 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 Boston Logan International Airport to Seattle-Tacoma International Airport are usually in September, with an average price of IDR 2,548,300. It is best to avoid December, when the average price can reach IDR 6,604,300.

IDR 6,604,300
IDR 4,576,300
IDR 2,548,300
IDR 520,300
  • IDR 2,548,300
    Sep
  • IDR 4,848,100
    Oct
  • IDR 4,895,600
    Nov
  • IDR 6,604,300
    Dec
  • IDR 5,656,200
    Jan
  • IDR 5,421,200
    Feb
  • IDR 4,035,000
    Mar
  • IDR 4,956,400
    Apr
  • IDR 4,479,100
    May
  • IDR 5,085,800
    Jun
  • IDR 5,042,800
    Jul
  • IDR 5,501,600
    Aug

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

The data is based on the past 12 months and shows the average ticket prices from Boston Logan International Airport to Seattle-Tacoma 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 Boston Logan International Airport to Seattle-Tacoma International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Sunday as prices are typically highest on that day.

IDR 5,668,500
IDR 4,900,500
IDR 4,132,500
IDR 3,364,500
    Cheapest
  • IDR 5,042,900
    Mon
  • IDR 4,350,800
    Tue
  • IDR 4,132,500
    Wed
  • IDR 5,137,200
    Thu
  • IDR 5,230,200
    Fri
  • IDR 5,032,000
    Sat
  • IDR 5,668,500
    Sun

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

The cheapest airline flying from Boston Logan International Airport to Seattle-Tacoma International Airport is American Airlines (from IDR 2,587,000) among 9 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From IDR 2,587,000
Alaska Airlines
From IDR 2,883,400
Delta Air Lines
From IDR 2,918,100
Jetblue Airways
From IDR 2,995,500
United Airlines
From IDR 3,217,100
Hahn Air
From IDR 3,908,600
WestJet
From IDR 4,383,800
Sun Country Airlines
From IDR 4,560,000
Volaris
From IDR 4,952,400

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What is the flight schedule from Boston Logan International Airport to Seattle-Tacoma International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS306

    Boston Logan International Airport

    19:59

    BOS

    6h 13m

    23:12

    SEA

    S M T W T F S
    Search

  2. DL324

    Boston Logan International Airport

    19:45

    BOS

    6h 15m

    23:00

    SEA

    S - - W T F S
    Search

  3. AS459

    Boston Logan International Airport

    07:03

    BOS

    6h 17m

    10:20

    SEA

    S M T W T F S
    Search

  4. B6397

    Boston Logan International Airport

    07:10

    BOS

    6h 23m

    10:33

    SEA

    S M T W T F S
    Search

  5. DL797

    Boston Logan International Airport

    18:30

    BOS

    6h 34m

    22:04

    SEA

    - M T - - - -
    Search

  6. AA1239

    Boston Logan International Airport

    08:19

    BOS

    3h 16m

    Direct

    10:35

    ORD

    S M T W T F S
    Search

  7. AA1476

    O'Hare International Airport

    11:59

    ORD

    4h 52m

    Direct

    14:51

    SEA

    S M T W T F S

  8. AA3160

    Boston Logan International Airport

    19:17

    BOS

    3h 18m

    Direct

    21:35

    ORD

    S M T W T F S
    Search

  9. AA2392

    O'Hare International Airport

    21:52

    ORD

    4h 51m

    Direct

    00:43

    SEA

    S M T W T F S

  10. AA1209

    Boston Logan International Airport

    08:30

    BOS

    4h 13m

    Direct

    11:43

    DFW

    - - - W T F S
    Search

  11. AA757

    Dallas Fort Worth International Airport

    12:32

    DFW

    4h 19m

    Direct

    14:51

    SEA

    S M T W T F S

  12. AA1563

    Boston Logan International Airport

    14:58

    BOS

    3h 10m

    Direct

    17:08

    ORD

    - - - W T F S
    Search

  13. AA2392

    O'Hare International Airport

    21:52

    ORD

    4h 51m

    Direct

    00:43

    SEA

    S M T W T F S

  14. AA547

    Boston Logan International Airport

    13:25

    BOS

    3h 4m

    Direct

    15:29

    ORD

    S M T W T F S
    Search

  15. AA3105

    O'Hare International Airport

    07:17

    ORD

    4h 52m

    Direct

    10:09

    SEA

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

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

Flight distance 4,008.36km
Cheapest one-way ticket price IDR 2,189,200
Cheapest return ticket price IDR 5,705,300

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

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

    Boston Logan International Airport to Seattle-Tacoma International Airport takes about 5 hours 43 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 8 daily flights from Boston Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Boston Logan International Airport to Seattle-Tacoma International Airport departs at 07:12, and the last departs at 19:59, with about 13 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Boston Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around IDR 5,740,000 in October, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • United Airlines is a very popular airline operating an average of 2444 flights per month.
  • One-way flights from Boston Logan International Airport to Seattle-Tacoma International Airport currently start from IDR 2,189,200, and round-trip fares start from IDR 5,705,300. The current lowest fare is a Delta Air Lines flight departing on Sun, Nov 15; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines, Jetblue Airways, Qatar Airways and United Airlines operate direct flights from Boston Logan International Airport to Seattle-Tacoma International Airport, with an average flight time of 6 hours 17 minutes, and around 73 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 Boston Logan International Airport to Seattle-Tacoma International Airport is IDR 5,132,600. Prices may vary depending on the departure date, airline, and availability.
  • Condor and Jetblue Airways are the most popular budget airlines flying from Boston Logan International Airport to Seattle-Tacoma International Airport, with one-way fares starting from IDR 2,189,200. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Boston Logan International Airport to Seattle-Tacoma International Airport operates around 76 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Jetblue Airways. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Boston Logan International Airport and Seattle-Tacoma 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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