If you want a cheap flight from Phoenix to Washington DC, you've got one airlines to choose from. You can use the search box to filter your preferences, but we've found that the cheapest day to fly is 04 / May / 2025.
Washington DC Washington Dulles International Airport is just one of the airports in Washington DC. If you're not set on a specific airport, try changing your search from Washington DC Washington Dulles International Airport to Washington DC to see a broader range of flights – they might be cheaper. It usually takes about 11 hrs 25 mins to fly 3144 km to Washington DC Washington Dulles International Airport.
There are about four flights to or via Washington DC every week, so you have plenty of options. Keep your eye out for flights
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.
