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PHX - IAD

$73 Find cheap flights from Phoenix to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Dulles Intl departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Phoenix to Dulles Intl (PHX-IAD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:59 pm - 7:21 amPHX-IAD
4h 22mnonstop
8:15 am - 10:05 amIAD-PHX
4h 50mnonstop
$145United Airlines
Find Deal
Wed, Aug 28 - Sun, Sep 1
8:55 pm - 7:07 amPHX-IAD
8h 12m1 stop
5:10 pm - 8:19 pmIAD-PHX
5h 09mnonstop
$150United Airlines
Find Deal
Mon, Nov 18 - Wed, Nov 20
5:00 am - 4:30 pmPHX-IAD
8h 30m1 stop
6:55 am - 1:06 pmIAD-PHX
9h 11m1 stop
$227American Airlines
Find Deal
Fri, Sep 6 - Sat, Sep 7
5:00 am - 4:30 pmPHX-IAD
8h 30m1 stop
1:24 pm - 8:20 pmIAD-PHX
9h 56m2 stops
$232American Airlines
Find Deal
Fri, Sep 6 - Sat, Sep 7
11:00 pm - 9:16 amPHX-IAD
7h 16m1 stop
7:15 am - 12:15 pmIAD-PHX
8h 00m1 stop
$256Delta
Find Deal
Tue, Aug 6 - Sat, Aug 10
6:00 am - 6:15 pmPHX-IAD
9h 15m1 stop
6:22 am - 12:21 pmIAD-PHX
8h 59m1 stop
$267Delta
Find Deal
Sat, Aug 3 - Sat, Aug 10
4:15 pm - 11:17 amPHX-IAD
16h 02m1 stop
11:25 am - 3:31 pmIAD-PHX
7h 06m1 stop
$270Sun Country Air
Find Deal
Wed, Jul 24 - Wed, Jul 31
5:00 pm - 10:30 amPHX-IAD
14h 30m1 stop
11:27 am - 3:24 pmIAD-PHX
6h 57m1 stop
$275Sun Country Air
Find Deal
Tue, Jul 9 - Wed, Jul 17
5:23 pm - 10:30 amPHX-IAD
14h 07m1 stop
5:35 pm - 11:07 pmIAD-PHX
32h 32m3 stops
Tue, Jul 16 - Tue, Jul 23
9:16 pm - 4:20 pmPHX-IAD
16h 04m2 stops
11:27 am - 8:26 pmIAD-PHX
11h 59m2 stops
Wed, Jul 10 - Wed, Jul 17

Flights from Phoenix to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Phoenix to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Phoenix to Washington Dulles Airport?

The average price of all flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Phoenix to Washington Dulles Airport, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Phoenix, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport is August, where tickets cost $318 on average. On the other hand, the most expensive months are March and May, where the average cost of tickets is $453 and $442 respectively.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 58 days before departure.

Which airlines provide the cheapest flights from Phoenix to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Phoenix to Washington Dulles Airport found by KAYAK users in the last 72 hours was for $145 on United Airlines, followed by American Airlines ($227). One-way flight deals have also been found from as low as $73 on United Airlines and from $114 on American Airlines.

Which airlines fly non-stop between Phoenix Sky Harbor Intl Airport and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
There are 2 airlines that fly nonstop from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport. They are Southwest and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing $218. On average, the best prices for this route can be found at United Airlines.

How many flights are there between Phoenix Sky Harbor Intl Airport and Washington, D.C. Dulles Intl Airport per day?

Each day, there are between 4 and 5 nonstop flights that take off from Phoenix Sky Harbor Intl Airport and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 4h 22m. The most common departure time is 8:00 am and most flights take off at night. Each week, there are 30 flights. The most frequent day of departure is Monday, when 17% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Phoenix Sky Harbor Intl Airport and Washington, D.C. Dulles Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Phoenix to Washington Dulles Airport take?

Direct flights cover the 1,950 miles separating Phoenix to Washington Dulles Airport in about 4h 08m.

What’s the earliest departure time from Phoenix to Washington Dulles Airport?

Early birds can take the earliest flight from Phoenix Sky Harbor Intl Airport at 12:13 am and will be landing in Washington, D.C. Dulles Intl Airport at 7:35 am.

What’s the latest departure time from Phoenix to Washington Dulles Airport?

If you prefer to fly at night, the latest flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport jets off at 11:59 pm and lands at 7:21 am.

Good to know

Low season

January

High season

June

Cheapest flight

$73
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Phoenix to Washington Dulles Airport

When to book flights from Phoenix to Dulles Intl

Are your dates flexible? Find out the best times to travel from Phoenix to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to Washington Dulles Airport flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport was $73 for a one-way ticket and $145 for a round-trip.

  • Do I need a passport to fly between Phoenix and Washington Dulles Airport?

    A passport is not required to fly from Phoenix to Washington Dulles Airport.

  • Which airlines offer Wi-Fi service onboard planes from Phoenix to Washington Dulles Airport?

    American Airlines, JetBlue, Air Canada, Delta, and Alaska Airlines offer inflight Wi-Fi service on the Phoenix to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Phoenix to Washington Dulles Airport?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Phoenix to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Phoenix to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Phoenix and Washington Dulles Airport.

  • On which days can I fly direct from Phoenix to Washington Dulles Airport?

    There are nonstop flights from Phoenix to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Phoenix to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to Washington, D.C. are Delta and United Airlines. With an average price for the route of $306 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $415 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Phoenix to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $209 or less one-way and $398 or less round-trip.

Prefer to fly non-stop from Phoenix to Washington Dulles Airport?

Find which airlines fly direct from Sky Harbor Intl to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl

Monday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Tuesday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Wednesday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Thursday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Friday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Saturday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Sunday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl

Monday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Tuesday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Wednesday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Thursday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Friday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Saturday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

Sunday

Austrian Airlines, Avianca, Brussels Airlines, +3 more

Austrian Airlines, Avianca, +4 more

See more direct flights
See more direct flights

Top 4 airlines serving from Phoenix to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10000 reviews
8.6Crew
7.4Food
8.0Entertainment
7.9Comfort
8.2Boarding
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

Re-checking our bags, the workers were not able to help us with boarding passes for the flight, told us to wait, then ignored us while they helped many other passengers. Until I got rude, they would have left us standing there, and even then they were very curt and dismissive in telling us where to get boarding passes printed. We made it to the gate just as they were starting to board passengers. It was just rude customer service.

While I received notice that AA 478 was delayed, the flight departed PHX and arrived PHL more than two hours late. The first class cabin service was mediocre; there were no pre-departure beverages offered; there were no warm mixed nuts served with cocktails; there was no personal greeting to me as an Executive Platinum member by the first class flight attendant. While the flight operated safely, its arrival at 0219 in the morning in PHL ended a very long day. I do not feel that American provided first class service.

Absolutely filthy flight and not equipped for a trans US

Turn on the heat. Flight was way too cold from Arizona to Chicago.

I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

Book cheap flights from Phoenix to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Phoenix to Washington, D.C. found on KAYAK in the last 72 hours.
8/12Mon
nonstopUnited Airlines
4h 26mPHX-IAD
$73
9/21Sat
nonstopUnited Airlines
4h 16mPHX-IAD
$103
8/24Sat
1 stopAmerican Airlines
6h 45mPHX-IAD
$114
8/21Wed
2 stopsAmerican Airlines
9h 15mPHX-IAD
$119
7/9Tue
1 stopSun Country Air
14h 30mPHX-IAD
$120
8/7Wed
1 stopDelta
9h 03mPHX-IAD
$128
7/24Wed
1 stopSun Country Air
16h 02mPHX-IAD
$130
7/5Fri
1 stopDelta
8h 54mPHX-IAD
$139
6/26Wed
2 stops
24h 55mPHX-IAD
$151
6/26Wed
2 stops
24h 55mPHX-IAD
$152

Search by stops

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Last minute flights from Phoenix to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Phoenix to Washington, D.C. that are departing in the next 10 days.
6/15Sat
multi-stopDelta
8h 22mPHX-IAD
7/24Wed
multi-stopDelta
9h 33mIAD-PHX
$379
6/17Mon
multi-stop
20h 18mPHX-IAD
6/20Thu
multi-stop
25h 33mIAD-PHX
$389
6/17Mon
multi-stopSun Country Air
15h 12mPHX-IAD
6/20Thu
multi-stopSun Country Air
8h 35mIAD-PHX
$397
6/14Fri
multi-stopAmerican Airlines
9h 03mPHX-IAD
8/3Sat
multi-stopAmerican Airlines
6h 35mIAD-PHX
$409
6/15Sat
multi-stopAmerican Airlines
8h 37mPHX-IAD
8/3Sat
multi-stopAmerican Airlines
6h 35mIAD-PHX
$414
6/15Sat
nonstopUnited Airlines
4h 26mPHX-IAD
7/24Wed
nonstopUnited Airlines
4h 43mIAD-PHX
$440
6/15Sat
multi-stopUnited Airlines
8h 00mPHX-IAD
7/24Wed
nonstopUnited Airlines
4h 43mIAD-PHX
$450
6/17Mon
multi-stopSun Country Air
15h 12mPHX-IAD
6/23Sun
multi-stopSun Country Air
7h 04mIAD-PHX
$539
6/13Thu
multi-stopAlaska Airlines
8h 38mPHX-IAD
6/16Sun
multi-stopAlaska Airlines
10h 32mIAD-PHX
$588
6/13Thu
multi-stopAlaska Airlines
15h 40mPHX-IAD
6/16Sun
multi-stopAlaska Airlines
10h 32mIAD-PHX
$981

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Phoenix - Washington Dulles Airport Flights

Departure:

Phoenix (PHX)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Phoenix

Cabin classes:

$1,008
$977
$690
$273