How much should you expect to spend for a flight from Boston to Washington Dulles?

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

$37 is the lowest fare found in the past 15 days.

Studies show that flying midweek — like on a Tuesday or Wednesday — can be cheaper than weekend flights. Still, airfares change frequently, so check updated prices on Jetcost.

Which airports serve Boston and Washington?

When planning a trip of about 412 mi, it's a good idea to check flights from surrounding airports too.

• Airports in Boston: Boston - Logan is the only operational airport in the area.
• Airports in Washington: Washington offers flights from 3 airports - Dulles international, Ronald Reagan, Washington International.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Filter and compare flights from Boston to Washington Dulles

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Other popular destinations

Want more ideas for your trip to United States? Check these: Atlanta, Los Angeles, Miami, New York City, Orlando.

Advanced filters help you skip long layovers or inconvenient times. The “airlines” filter is handy if you want to collect miles or prefer a certain onboard experience.