Cheap flights from Boston to Washington

Bing travel utilizes over a billion airfares on a daily basis to bring you Price Predictors, and now we're using that data to uncover cheap flights from Boston to Washington every day. Note that deals are compiled on yesterday's lowest airfares and can change often.

Featured flight deal from Boston to Washington

Lowest fares from Boston to Washington

Use our flexible travel graph to find the lowest airfare from Boston to Washington. Currently the cheapest flight you can find in the next 30 days from Boston to Washington departs on 06/13/2012 and returns 06/14/2012 with a low fare of $151.

View complete flexible search for BOS to IAD (modify trip length and dates)

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