Cheap flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. from $106

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Phoenix Sky Harbor Intl Airport, with most prices found around $346. If you’re not able to fly to Washington, D.C. in January, then December is your next best option. Flight prices from Phoenix Sky Harbor Intl Airport to Washington, D.C. during December average around $407.

On average, the least expensive day to fly to Washington, D.C. from Phoenix Sky Harbor Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $539. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix Sky Harbor Intl Airport to Washington, D.C. for around $777.

In the evening is the cheapest time of day to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. when you can find flight prices for as low as $476. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $634. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Washington, D.C. from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $491 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Phoenix Sky Harbor Intl Airport for as low as $371 on momondo.

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl Airport to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Phoenix Sky Harbor Intl Airport to Washington, D.C..

As of September 2026, prices for Phoenix Sky Harbor Intl Airport to Washington, D.C. flights are approximately 39% more expensive when compared to flights at the same time last year.

United Airlines, Southwest, and Alaska Airlines are the most popular carriers operating from Phoenix Sky Harbor Intl to Washington, D.C.

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. from Phoenix Sky Harbor Intl Airport according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% 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 134 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

Flights via Houston (IAH) offer the lowest average round-trip price of $236.

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 5h 25m.

St. Louis (STL) has the shortest average layover time for this route: 0h 45m.

As of September 2026, there are 11 flights per day flying from Phoenix Sky Harbor Intl Airport to Washington, D.C.. The most common time of day flights depart is 8:00AM, with 50% of flights taking off at noon.

As of September 2026, 83 flights take off from Phoenix Sky Harbor Intl Airport and land in Washington, D.C. each week. The most common flight departure day for this route is Sun, with 20% of weekly flights taking off on this day.