Cheap flights from Washington to Boston

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 Washington to Boston every day. Note that deals are compiled on yesterday's lowest airfares and can change often.

Featured flight deal from Washington to Boston

• Washington (IAD) to Boston (BOS)

  Save $57 off average low found today

  $156

  Fares rising

  View dates
  See more: Low fares from Washington to Boston

Lowest fares from Washington to Boston

Use our flexible travel graph to find the lowest airfare from Washington to Boston. Currently the cheapest flight you can find in the next 30 days from Washington to Boston departs on 06/12/2012 and returns 06/19/2012 with a low fare of $156.

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