What’s the cost of a flight from Boston to Washington Dulles?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Boston and Washington.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Are there multiple airports in Boston and Washington?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

• Airports in Boston: Only Boston - Logan operates in this city.
• Airports in Washington: 3 airports are available in Washington - Dulles international, Ronald Reagan, Washington International.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

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If you have a preferred time to leave or arrive, filters can help you show only the matching flights. You can also filter by your favorite airline and see only those deals.