Cheap flights from Washington Dulles to Phoenix

Compare Washington Dulles to Phoenix flight deals

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Flight deals from Washington Dulles Airport to Phoenix

Looking for a cheap last-minute deal or the best round-trip flight from Washington Dulles Airport to Phoenix? If you want to travel next month, round-trip fares start from $184. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Washington Dulles to Phoenix

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Phoenix flights are currently cheapest in April.

Direct flights from Washington Dulles to Phoenix

Alternative Washington Dulles to Phoenix routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Phoenix? You could fly into the following airports instead.

Finding cheap flights from Washington Dulles to Phoenix: Frequently asked questions

There are 4 airports in Phoenix: Phoenix Sky Harbor, Phoenix Scottsdale Municipal, Phoenix-Deer Valley, and Phoenix-Mesa Gateway.
The best price we found for a round-trip flight from Washington Dulles to Phoenix is $184. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 6 minutes is the average flight time from Washington Dulles to Phoenix.
United, Southwest Airlines and Lufthansa fly direct from Washington Dulles to Phoenix.
There are 52 flights per week flying from Washington Dulles to Phoenix, as of March 2026.
The cheapest month to fly from Washington Dulles to Phoenix is usually April.
If you're flying from Washington Dulles Airport, the cheapest airport near Phoenix is Phoenix Sky Harbor – which is 6.0 km away from the center of Phoenix. We've found flights to this airport from $184.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Phoenix on Tuesday, April 14, 2026.
Yes – the average flight time is 5 hours and 6 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phoenix but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 16°C. July is typically the warmest month in Phoenix, when it usually averages around 40°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 4°C. The rainiest month is August.
Currently, Alaska Airlines and United offer the cheapest flight tickets to Phoenix.

Traveling from Washington Dulles International Airport (IAD) to Phoenix: what you need to know

  • The average time for a direct flight from Washington Dulles International Airport to Phoenix is 4 hours 15 minutes.

  • Phoenix is three hours behind Washington DC, where Washington Dulles International Airport is located. Phoenix runs on the UTC-7 timezone.

  • With 21 flights a week between the two airports, Washington Dulles International Airport (IAD) to Phoenix Sky Harbor International Airport (PHX) is the most popular route. United Airlines operates the earliest flight at 08:15. If you'd like to get more out of your day before leaving, the last departure from IAD to PHX is with Southwest Airlines at 19:00.

  • Give yourself plenty of time to catch your IAD to Phoenix flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • If you're jetting off during a public holiday or another peak period, allow extra time. A good rule is two hours before domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • Start your journey at IAD and fly straight to Phoenix Sky Harbor International Airport (PHX). That's where you can expect to land when searching for Washington Dulles International Airport to Phoenix tickets.

  • Be on the lookout for offers from United Airlines. This airline has direct flights from Washington Dulles International Airport to Phoenix.

  • IAD is about 40 kilometers from central Washington DC. If you're ride-sharing, driving or catching a cab from the center, it'll take 50 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the journey time to be around 1 hour 10 minutes.

  • Have an early flight from Washington Dulles International Airport to Phoenix? Avoid rushing to the airport (and catch some extra z's) by choosing one of these hotels near IAD:

  • Of the departures from Washington Dulles International Airport, 74.39% land on schedule at their destination.

  • IAD is located at 1 Saarinen Circle.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Phoenix

  • $102 is currently the lowest price for a one-way Washington Dulles International Airport to Phoenix flight. A return flight ticket starts at $184. These fares can change based on availability.

  • To secure cheap flights from IAD to Phoenix, reserve your journey one month ahead of your departure date.

  • May is the best month for picking up an awesome deal on Washington Dulles International Airport to Phoenix tickets. If you need to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Snapping up a cheap flight from IAD to Phoenix is easy with Price Alerts. Simply create one of these automatic notifications and we'll get in touch when the price has dropped.

  • Tailor your flights with filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Washington Dulles International Airport to Phoenix.

Airports in Phoenix

Phoenix Scottsdale Municipal Airport (SCF)

Phoenix Sky Harbor International Airport (PHX)

  • Central Phoenix is around 8 kilometers from Phoenix Sky Harbor International Airport (PHX). Once your flight from Washington Dulles International Airport to Phoenix has hit the runway and you've made your way through the terminal, the drive should be around 10 minutes.

  • Public transport will get you there in about 35 minutes.

  • Hang up the 'Do not disturb' sign and rest at a hotel close to PHX. Here are a few options where you can take a load off after your IAD to Phoenix flight:

  • Forget about public transport timetables or cab lines. Pick up a Phoenix Sky Harbor International Airport rental car and take your journey in whatever direction you like. Check out the rates and availability from Europcar, Dollar and Thrifty.

  • Avoid paying more than you need to. Securing your ride one week before your arrival at PHX can land you a better rate.

  • You'll find Phoenix Sky Harbor International Airport at 3400 Sky Harbor Boulevard.

Phoenix-Mesa Gateway Airport (AZA)

  • Step off your flight from Washington Dulles International Airport to Phoenix and head for your hotel or start exploring right away. The center of Phoenix is around 56 kilometers from Phoenix-Mesa Gateway Airport (AZA) and typically takes 40 minutes to drive there.

  • Enjoy a more leisurely start to your trip by staying at a hotel near AZA after your IAD to Phoenix flight. Recover from a day of travel or simply give yourself time to get your footing in a new city at:

  • Take the guesswork out of the next part of your trip by picking up a Phoenix-Mesa Gateway Airport rental car. Dollar, Alamo and Budget make getting on the road effortless.

  • Around two weeks ahead of your flight from Washington Dulles International Airport to Phoenix is the ideal time to secure your ride from AZA. You're likely to snag a better deal or pick up some early bird promotions.

  • Phoenix-Mesa Gateway Airport is located at 6033 S. Sossaman Rd..

Best time to go to Phoenix

  • Before locking in your flights from Washington Dulles International Airport to Phoenix, consider which time of year is best for you. High season in Phoenix offers a lively atmosphere and plenty of activities, while the off-season means you'll get better deals on hotels and fewer crowds.

  • Book a Washington Dulles International Airport to Phoenix flight ticket with a departure in July if you're eager to visit the city during its warmest month. You can expect temperatures to range from 26ºC (79ºF) to 44ºC (111ºF).

  • Look for cheap tickets from IAD to Phoenix in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 20ºC (68ºF) on average.

More about Phoenix

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Phoenix right here. Explore these options once you've booked your flight from Washington Dulles International Airport to Phoenix:

  • All great adventures should include a little sightseeing. Heard Museum, Desert Botanical Garden and Papago Park are attractions you won't want to skip in Phoenix.

Explore more of United States

  • You've done Phoenix, now it's time to explore more of United States. Travel about 483 kilometers west to San Diego to check off its top attractions. From San Diego Zoo to USS Midway Museum and SeaWorld San Diego, there's plenty to keep you on the go.

  • Las Vegas is another favorite destination in United States and is around 418 kilometers north-west of Phoenix. No journey is complete without seeing Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.