Traveling from most locations, it is best to book your flight to Washington during the month of November for the best deal, although there are other times of the year which offer great deals as well.
Most flyers found that booking flight tickets 60 days in advance of their planned departure date is, on average, the best time to get cheap flights to Washington.
From most locations, the cheapest day to fly to Washington is Friday. Most users found that departing on a Monday was most expensive.
Typically, cheap prices to Washington are most often found for evening flights. Cheap prices are less likely for morning flights.