Cheap flights from Phoenix to Washington, D.C. from $170

The month of September is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Phoenix, with most prices found around $125. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $127.

The cheapest day to depart from Phoenix to Washington, D.C. Reagan-National Airport is on a Wednesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Wednesday will often find tickets for as low as $447. Flights from Phoenix to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $668. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Phoenix to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the evening. Our users have found flights to Washington, D.C. Reagan-National Airport in the evening for as low as $456. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $516.

Fly from Phoenix Sky Harbor Intl to Washington, D.C. Reagan-National for the best Phoenix - Washington, D.C. Reagan-National flight prices

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $440 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Phoenix for as low as $334 on momondo.

There are 3 cabin classes available to choose from on Phoenix to Washington, D.C. Reagan-National Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Delta, and Southwest are the most popular carriers operating from Phoenix to Washington, D.C. Reagan-National

American Airlines, Frontier and Southwest are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Phoenix according to our data. American Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 6 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Phoenix and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

As of July 2026, there are 3 flights per day flying from Phoenix to Washington, D.C. Reagan-National Airport. The most common time of day flights depart is 8:00AM, with 50% of flights taking off at noon.

As of July 2026, 27 flights take off from Phoenix and land in Washington, D.C. Reagan-National Airport each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.