Cheap flights from Boston to Seattle

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Planning a flight from Boston to Seattle?

Flight prices from Boston to Seattle change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Which departure and arrival airports are available?

Between Boston and Seattle, flight options may depend on the combination of airports available.

  • Airports in Boston: Only Boston - Logan is currently in operation.
  • Airports in Seattle: Seattle is served by 2 airports - Boeing Field, Lake Union.

Sometimes flying into a nearby city can be more cost-effective. When a city has multiple airports, it’s worth comparing different flight combinations.

Flights from Boston - Logan to Seattle - Tacoma

Refine your flight search from Boston to Seattle

With Jetcost, it’s easy to narrow down results to find flights that match your schedule and preferences. You can filter by airline, price, trip type, and more — including offers from the best airlines and travel agencies.

Other popular destinations

Also looking at United States? These cities are trending: Atlanta, Los Angeles, Miami, New York City, Orlando.

Online agencies can show different offers for the same flight — it’s worth comparing. Filters let you narrow things down further, like selecting a specific time slot to find flights that suit you best.
Frequently Asked Questions

Frequently asked questions about flights from Boston to Seattle.

How much does an airline ticket from Boston to Seattle cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Boston to Seattle.

How far is Boston from Seattle?

Boston is about 4005 km from Seattle.

What are the airports in Seattle?

Seattle has 2 airports: Boeing Field, Lake Union.

What are the airports in Boston?

Boston has one airport: Boston - Logan.

What are the most popular cities in United States?

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

When should I book a flight from Boston to Seattle?

The best time to book a flight from Boston to Seattle is 1 month in advance, while the worst time is 1 week in advance.

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

This information is not available at the moment.

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

This information is not available at the moment.

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

This information is not available at the moment.