Cheap flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. from $143

The month of April is, on average, the cheapest month to fly to Washington, D.C. from Phoenix Sky Harbor Intl Airport, with most prices found around $96. If you’re not able to fly to Washington, D.C. in April, then September is your next best option. Flight prices from Phoenix Sky Harbor Intl Airport to Washington, D.C. during September average around $112.

On average, the least expensive day to fly to Washington, D.C. from Phoenix Sky Harbor Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $508. 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 $730.

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 $458. 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 at noon 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 Baltimore/Washington 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 $434 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 $343 on momondo.

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

As of May 2026, prices for Phoenix Sky Harbor Intl Airport to Washington, D.C. flights are approximately 8% cheaper when compared to flights at the same time last year.

Frontier is the most popular carrier 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 in the evening 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 8% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 59% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $116.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 6h 12m.

Dallas (DFW) has the shortest average layover time for this route: 1h 02m.

As of May 2026, there are 16 flights per day flying from Phoenix Sky Harbor Intl Airport to Washington, D.C.. The most common time of day flights depart is 7:00AM, with 41% of flights taking off at noon.

As of May 2026, 112 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 19% of weekly flights taking off on this day.