Find a great deal and save up to 14% by booking at least 43 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Santa Rosa to Washington Dulles Intl within the next two weeks, with the cheapest ticket starting at $262.
August can be a great time to fly to Washington Dulles Intl from Santa Rosa with a flight ticket averaging about $285. Cheapflights users have found deals in the month of August for as cheap as $90. The most expensive prices can be found in the month of June.