220 - 320 USD
In general when looking for the cheapest flight to Washington, try to book your flight during the month of December for the best deal.
Most flyers found that booking flight tickets 59 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.