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Cheap BOS to SEA Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Boston to Seattle route information

Origin Airport Logan Intl.
Destination Airport Seattle - Tacoma Intl.
Airlines Serving Alaska Airlines, American Airlines, Delta, JetBlue Airways, Spirit Airlines, Sun Country Airlines, United
Flight Price $228
Distance 2,487 mi

Providence

$281.68

Worcester

$284.90

Provincetown

$366.40

New Bedford

$822.36

Cheap BOS to SEA Flights

  • Question : What is the cheapest day to fly?
    Answer : The cheapest day to fly from Boston to Seattle is on Monday. If you would like to save some money on your next holiday look for flights on that day.
  • Question : What is the cheapest day to fly to Seattle?
    Answer : As of May 20th, the best day for booking to Seattle (SEA) is May 29th. A ticket will run you $231, which is 40% below this route's average price.
  • Question : What day of the week has the most flight time options?
    Answer : With 12 total flight time options, Thursday provides the most flexibility from BOS to SEA. The day of the week with the least amount of times is Saturday with only nine departures.
  • Question : How long do most people stay in Seattle?
    Answer : Of course, you are not most people, but if you were, you'd stay around eight days.
  • Question : Can I change the date of my flight?
    Answer : Yes, you can change your departure date. If you wish to save some funds in doing so, the cheapest day to fly in June is Monday. Being flexible with your travel days can provide you extra savings when booking.
  • Question : How many flights are there per day from Boston to Seattle?
    Answer : The number does differ by the day, but on average, you can expect 10 different choices of flight times when you book. You’ll have more choices on this route than most other routes departing the United States.
  • Question : How long is the flight from BOS to SEA?
    Answer : If you're able to take the direct flight (which is offered by JetBlue Airways), you will be able to leave BOS at 8:58 AM EDT and get to SEA at 12:18 PM PDT (six hours and 20 minutes). Remember, there is a time change of three hours.