Cheap flights from Boston to Seattle
Selected dates may not give results due to COVID-19. We suggest you change the dates.
Round trip One way
Round trip
One way
Select departure
No results match your search criteria
  • Latest searches
Select arrival
No results match your search criteria
  • Latest searches
Round trip One way
Round trip
One way
{{ weekDay }}
{{ panel.label }}
Looking for a one-way flight?
{{ fromDate | dateToDayNumber }}

{{ fromDate | dateToMonthName }}

{{ fromDate | dateToDayName }}

{{ flexibleFromDateLabel }}
{{ option.label }}
?
{{ flexibleToDateLabel }}
{{ option.label }}
Class and passengers
Class
Economy
Available for Economy only
Number of passengers
Adults
{{ adults }}
Children
{{ children }}
Infants
{{ infants }}
  • Compare with:
    Sponsored

Find cheap flights from Boston to Seattle

Fly Scanner helps you compare the best deals to Seattle, offering the most cost effective solutions for your trip. Find your airline ticket at the best price in seconds by comparing fares from hundreds of airlines and online travel agencies in a single search!

Customize your search

Looking for a Boston - Seattle direct flight? In just a few seconds, our comparator will provide you with the best deals for your flight by selecting your travel optionsfrom more than 400 airlines: just filter your search according to your needs.

How to find a Boston - Seattle low cost flight?

Fly Scanner compares all types of flights: low cost, direct and solutions also for airports near Seattle. Save time by comparing all flight deals for Boston - Seattle in one search and find your airfare at the best price.

Compare only the flights that suit your needs

The flight comparator of Fly Scanner shows you the most suitable solutions for your needs, just enter:

  • Number of passengers
  • Travel class
  • Flight date
Compare also the price of flights from Boston to Seattle in the days close to those of your search, and save even more by leaving or arriving a few days earlier or later.

Frequently Asked Questions

Frequently asked questions about flights from Boston to Seattle.

How much does a Boston - Seattle flight cost?

The lowest price in the last 15 days for an airline ticket from Boston to Seattle is $28.

How far is Boston from Seattle?

Boston is about 2489 mi from Seattle.

What are the airports in Seattle?

At Seattle there are 2 airports: Boeing Field, Lake Union.

What are the airports in Boston?

Boston has one airport: Boston - Logan.

What are the most popular destinations searched for in United States?

The most searched cities in United States according to our users are: Atlanta, Los Angeles, Miami, New York City, Orlando.

What is the cheapest month to fly from Boston to Seattle?

The cheapest month to fly from Boston to Seattle is January.

What is the most expensive month to fly from Boston to Seattle?

The most expensive month to fly from Boston to Seattle is September.

What is the best day of the week to fly from Boston to Seattle?

For flights from Boston to Seattle Monday is on average the cheapest day to fly, while Saturday is the most expensive day to fly.
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more