Cheap flights from Boston to Seattle Lake Union

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Flight prices from Boston to Seattle Lake Union

There’s no fixed price — fares between Boston and Seattle can vary a lot by day or time.

Choose a date to explore the best fares now.

The lowest fares are often found with some flexibility in travel dates. If your plans are flexible, you’ll have a better chance of finding cheap flights.

Are there alternative airports near Boston and Seattle?

The two cities are about 4003 km apart. Looking beyond the main airport might reveal better options.

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

Many smaller airports are connected by direct buses or shuttles, often at low cost. If Seattle has more than one airport, you can pick the most convenient for your destination.

Flights from Boston - Logan to Seattle - Lake Union

Explore flights from Boston to Seattle Lake Union your way

On Jetcost, you can filter by round-trip or one-way, time of day, airline, number of stops, and even by specific travel agency.

Other popular destinations

Also interested in United States? Check out: Atlanta, Los Angeles, Miami, New York City, Orlando.

If you’re flexible with dates, try checking the days before and after to see if prices vary. Some routes are offered by multiple agencies — comparing fares can really pay off.
Frequently Asked Questions

Frequently asked questions about flights from Boston to Seattle Lake Union.

How much does an airline ticket from Boston to Seattle Lake Union 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 Lake Union.

How far is Boston from Seattle?

Boston is about 4003 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?

This information is not available at the moment.

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.