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Cheap flight deals from Seattle to Boston Starting at PHP 4,622

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        SEA11:30 pm
        5h 14m
        Nonstop
        BOS07:44 am
        Sun, Feb 16|Seattle - Boston|Alaska Airlines
        PHP 4,876PHP 6,248
        22% OFF
        22% OFF
        PHP 6,248PHP 4,876

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Feb 16, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 4,876 including taxes and charges.

      • SEA11:30 pm
        5h 22m
        Nonstop
        BOS07:52 am
        Sun, Apr 20|Seattle - Boston|Alaska Airlines
        PHP 4,900PHP 6,248
        22% OFF
        22% OFF
        PHP 6,248PHP 4,900

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Apr 20, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 4,900 including taxes and charges.

      • SEA10:29 pm
        5h 26m
        Nonstop
        BOS06:55 am
        Sun, Feb 16|Seattle - Boston|Delta Air Lines
        PHP 4,932PHP 6,248
        21% OFF
        21% OFF
        PHP 6,248PHP 4,932

        Choose Delta Air Lines flights from Seattle to Boston. The one-way direct flight with Delta Air Lines departs from Seattle-Tacoma International Airport on Sun, Feb 16, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 4,932 including taxes and charges.

      • SEA11:48 pm
        5h 15m
        Nonstop
        BOS08:03 am
        Sun, Feb 16|Seattle - Boston|Jetblue Airways
        PHP 5,020
        PHP 5,020

        Choose Jetblue Airways flights from Seattle to Boston. The one-way direct flight with Jetblue Airways departs from Seattle-Tacoma International Airport on Sun, Feb 16, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,020 including taxes and charges.

      • SEA03:45 pm
        5h 14m
        Nonstop
        BOS11:59 pm
        Thu, Feb 27|Seattle - Boston|Alaska Airlines
        PHP 5,235
        PHP 5,235

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Thu, Feb 27, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,235 including taxes and charges.

      • SEA11:35 am
        5h 33m
        Nonstop
        BOS08:08 pm
        Thu, May 1|Seattle - Boston|Jetblue Airways
        PHP 5,275
        PHP 5,275

        Choose Jetblue Airways flights from Seattle to Boston. The one-way direct flight with Jetblue Airways departs from Seattle-Tacoma International Airport on Thu, May 1, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,275 including taxes and charges.

      • SEA03:45 pm
        5h 14m
        Nonstop
        BOS11:59 pm
        Wed, Feb 26|Seattle - Boston|Alaska Airlines
        PHP 5,378
        PHP 5,378

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Wed, Feb 26, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,378 including taxes and charges.

      • SEA03:45 pm
        5h 14m
        Nonstop
        BOS11:59 pm
        Tue, Feb 25|Seattle - Boston|Alaska Airlines
        PHP 5,418
        PHP 5,418

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Tue, Feb 25, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,418 including taxes and charges.

      • SEA11:30 pm
        5h 14m
        Nonstop
        BOS07:44 am
        Thu, Mar 6|Seattle - Boston|Alaska Airlines
        PHP 5,434
        PHP 5,434

        Choose Alaska Airlines flights from Seattle to Boston. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Thu, Mar 6, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,434 including taxes and charges.

      • SEA07:30 am
        5h 29m
        Nonstop
        BOS03:59 pm
        Thu, Feb 27|Seattle - Boston|Delta Air Lines
        PHP 5,498
        PHP 5,498

        Choose Delta Air Lines flights from Seattle to Boston. The one-way direct flight with Delta Air Lines departs from Seattle-Tacoma International Airport on Thu, Feb 27, arriving at General Edward Lawrence Logan International Airport. One-way Prices start from PHP 5,498 including taxes and charges.

      • SEA01:00 pm
        3h 5m
        Nonstop
        BOS02:00 pm
        Sun, Feb 23|Seattle - Boston|Alaska Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Seattle to Boston Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS460

    Alaska Airlines

    03:40 pm

    SEA

    5.4h

    Nonstop

    12:06 am

    BOS

    SMTWTFS
    Search

  2. DL459

    Delta Air Lines

    07:20 am

    SEA

    5.7h

    Nonstop

    03:59 pm

    BOS

    SMTWTFS
    Search

  3. AS306

    Alaska Airlines

    08:13 am

    SEA

    5.5h

    Nonstop

    04:45 pm

    BOS

    SMTWTFS
    Search

  4. DL473

    Delta Air Lines

    10:00 pm

    SEA

    5.6h

    Nonstop

    06:36 am

    BOS

    SMTWTFS
    Search

  5. B6498

    Jetblue Airways

    10:20 pm

    SEA

    5.3h

    Nonstop

    06:37 am

    BOS

    SMTWTFS
    Search

  6. AS536

    Alaska Airlines

    11:00 pm

    SEA

    5.3h

    Nonstop

    07:20 am

    BOS

    SMTWTFS
    Search
Find more flights and airlines

When is the cheapest time to fly from Seattle to Boston?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

How to find a cheap flight from Seattle to Boston

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Boston. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Seattle to Boston

Cheapest nonstop flight pricePHP 4,621
Cheapest round-trip ticket pricePHP 10,581
Off-season for travelJanuary
Peak season for travelMay
Flight distance4,005.09 km
Average flight time5 hours 49 minutes
Popular airlineAlaska Airlines

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