Travelers have found that booking a Friday departure is the best way to save up to 99% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
To save up to 111% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Flagstaff to Washington Dulles Intl from $235 1-2 weeks out and tickets from $341 for flights departing within the next 72 hours.
April can be a great time to fly to Washington Dulles Intl from Flagstaff with a flight ticket averaging about $172. Cheapflights users have found deals in the month of April for as cheap as $113. The most expensive prices can be found in the month of September.
Unlike in the morning, when flights are generally more expensive, you can save up to 43% on flights from Flagstaff to Washington Dulles Intl by exploring options for tickets at noon.