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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix from $115

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Phoenix departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Phoenix

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:58 pm - 11:56 am
IAD
-
PHX
22h 58m2 stops
Multiple Airlines Logo
5:05 pm - 2:09 pm
PHX
-
IAD
19h 04m1 stop
$243Multiple Airlines
Sat, Jan 17 - Tue, Jan 20
Multiple Airlines Logo
5:37 pm - 3:22 pm
IAD
-
PHX
23h 45m1 stop
Multiple Airlines Logo
5:05 pm - 2:09 pm
PHX
-
IAD
19h 04m1 stop
$245Multiple Airlines
Thu, Jan 22 - Tue, Jan 27
Frontier Logo
9:59 pm - 12:50 pm
IAD
-
PHX
16h 51m1 stop
Frontier Logo
6:00 am - 11:28 am
PHX
-
IAD
27h 28m1 stop
$246Frontier
Thu, Jan 8 - Sun, Jan 11
Frontier Logo
3:00 pm - 12:25 am
IAD
-
PHX
11h 25m2 stops
Frontier Logo
6:00 am - 4:55 pm
PHX
-
IAD
8h 55m1 stop
$247Frontier
Thu, Jan 15 - Sun, Jan 18
Frontier Logo
8:59 pm - 12:25 am
IAD
-
PHX
29h 26m1 stop
Frontier Logo
6:00 am - 4:55 pm
PHX
-
IAD
8h 55m1 stop
$248Frontier
Thu, Jan 15 - Sun, Jan 18
Frontier Logo
8:51 am - 3:25 pm
IAD
-
PHX
8h 34m1 stop
Frontier Logo
6:00 am - 4:28 pm
PHX
-
IAD
8h 28m1 stop
$251Frontier
Mon, Jan 19 - Thu, Jan 22
Frontier Logo
6:00 am - 3:13 pm
IAD
-
PHX
11h 13m1 stop
Frontier Logo
6:00 am - 4:55 pm
PHX
-
IAD
8h 55m1 stop
$252Frontier
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
6:00 am - 8:19 pm
IAD
-
PHX
16h 19m2 stops
Multiple Airlines Logo
5:05 pm - 2:09 pm
PHX
-
IAD
19h 04m1 stop
$253Multiple Airlines
Mon, Jan 19 - Tue, Jan 20
Frontier Logo
6:00 am - 2:18 pm
IAD
-
PHX
11h 18m1 stop
Frontier Logo
5:00 am - 6:43 pm
PHX
-
IAD
10h 43m1 stop
$254Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
5:37 pm - 3:22 pm
IAD
-
PHX
23h 45m1 stop
Frontier Logo
6:00 am - 4:28 pm
PHX
-
IAD
8h 28m1 stop
$255Frontier
Thu, Jan 29 - Mon, Feb 2

Frontier flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Jan 8
IAD9:59 pmWashington, D.C. Dulles Intl
16h 51m
1 stop
PHX12:50 pmPhoenix Sky Harbor Intl
Jan 11
PHX6:00 amPhoenix Sky Harbor Intl
27h 28m
1 stop
IAD11:28 amWashington, D.C. Dulles Intl
$246
Find similar
Frontier
Jan 15
IAD3:00 pmWashington, D.C. Dulles Intl
11h 25m
2 stops
PHX12:25 amPhoenix Sky Harbor Intl
Jan 18
PHX6:00 amPhoenix Sky Harbor Intl
8h 55m
1 stop
IAD4:55 pmWashington, D.C. Dulles Intl
$247
Find similar
Frontier
Jan 15
IAD8:59 pmWashington, D.C. Dulles Intl
29h 26m
1 stop
PHX12:25 amPhoenix Sky Harbor Intl
Jan 18
PHX6:00 amPhoenix Sky Harbor Intl
8h 55m
1 stop
IAD4:55 pmWashington, D.C. Dulles Intl
$248
Find similar

Delta flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flight tickets
Delta
Jan 17
IAD6:20 amWashington, D.C. Dulles Intl
8h 04m
1 stop
PHX12:24 pmPhoenix Sky Harbor Intl
Jan 20
PHX11:53 pmPhoenix Sky Harbor Intl
7h 20m
1 stop
IAD9:13 amWashington, D.C. Dulles Intl
$257
Find similar
Delta
Jan 14
IAD6:15 pmWashington, D.C. Dulles Intl
7h 25m
1 stop
PHX11:40 pmPhoenix Sky Harbor Intl
Jan 20
PHX11:53 pmPhoenix Sky Harbor Intl
7h 20m
1 stop
IAD9:13 amWashington, D.C. Dulles Intl
$261
Find similar
Delta
Jan 10
IAD12:23 pmWashington, D.C. Dulles Intl
12h 17m
1 stop
PHX10:40 pmPhoenix Sky Harbor Intl
Jan 20
PHX11:53 pmPhoenix Sky Harbor Intl
7h 20m
1 stop
IAD9:13 amWashington, D.C. Dulles Intl
$276
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 1/17

2:58 pm-11:56 am

2 stops22h 58m

Phoenix Sky Harbor Intl

Tue 1/20

5:05 pm-2:09 pm

1 stop19h 04m

$243

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 1/22

5:37 pm-3:22 pm

1 stop23h 45m

Phoenix Sky Harbor Intl

Tue 1/27

5:05 pm-2:09 pm

1 stop19h 04m

$245

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 1/8

9:59 pm-12:50 pm

1 stop16h 51m

Phoenix Sky Harbor Intl

Sun 1/11

6:00 am-11:28 am

1 stop27h 28m

$246

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 1/15

3:00 pm-12:25 am

2 stops11h 25m

Phoenix Sky Harbor Intl

Sun 1/18

6:00 am-4:55 pm

1 stop8h 55m

$247

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 1/15

8:59 pm-12:25 am

1 stop29h 26m

Phoenix Sky Harbor Intl

Sun 1/18

6:00 am-4:55 pm

1 stop8h 55m

$248

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 1/19

8:51 am-3:25 pm

1 stop8h 34m

Phoenix Sky Harbor Intl

Thu 1/22

6:00 am-4:28 pm

1 stop8h 28m

$251

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 1/11

6:00 am-3:13 pm

1 stop11h 13m

Phoenix Sky Harbor Intl

Sun 1/18

6:00 am-4:55 pm

1 stop8h 55m

$252

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-8:19 pm

2 stops16h 19m

Phoenix Sky Harbor Intl

Tue 1/20

5:05 pm-2:09 pm

1 stop19h 04m

$253

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 4/9

6:00 am-2:18 pm

1 stop11h 18m

Phoenix Sky Harbor Intl

Mon 4/13

5:00 am-6:43 pm

1 stop10h 43m

$254

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 1/29

5:37 pm-3:22 pm

1 stop23h 45m

Phoenix Sky Harbor Intl

Mon 2/2

6:00 am-4:28 pm

1 stop8h 28m

$255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Phoenix from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?

In general, August is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $325. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of August, then departing from Washington, D.C. Dulles Intl Airport during the month July is also very affordable. Most momondo users find prices during this month for around $380.

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $409. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $499. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $424. Flying to Phoenix Sky Harbor Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $643. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $399 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport for as low as $281 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl flights?

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

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flights?

You could potentially save up to 29% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flight.

How have Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flight prices changed over time?

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flights are approximately 38% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport (IAD to PHX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Best Price Found

$223

Fastest flight time

5h 00m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $223. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $370.
The fastest flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport takes 5h 00m
Direct flights go from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport every day.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl by plane?

    The distance between Washington, D.C. Dulles Intl and Phoenix Sky Harbor Intl is about 1950.3 mi. Typically, this will take 5h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport.

  • What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

    The travel and health documents required for your trip to Phoenix Sky Harbor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Phoenix Sky Harbor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $148Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
SouthwestPriceFrom $265Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $366Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights

  • Southwest Flights From Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

    Southwest flies from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport around 3 times per week, with 4,250 momondo users rating the airline 7.9/10. The cheapest Southwest deal from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in the last 72 hours was $265 (round-trip), much lower than the average airfare cost of $382 for Southwest flights on this route.

  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

    United Airlines is also a popular choice for this route. United Airlines flight deals for Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport start from as low as $275 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $420. United Airlines operates 4 flights to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport in an average week. Users have rated it 7.4/10 across 9,092 reviews.

Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Scottsdale
Mesa
Tempe
Glendale
Chandler
Gilbert
Peoria
Casa Grande
Surprise
Goodyear
Buckeye
Payson
Apache Junction
Avondale
Wickenburg
Paradise Valley
Camp Verde
Litchfield Park
Fountain Hills
Cave Creek

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Phoenix?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Phoenix. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Phoenix with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Phoenix on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Phoenix?

Once you have performed a search for Washington, D.C. to Phoenix flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Phoenix right now. Can momondo alert me if prices change?

Price alerts on flights to Phoenix from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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