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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix from $122

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 5/19. 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.
Alaska Airlines Logo
9:00 am - 6:26 pm
IAD
-
PHX
12h 26m
2 stops
Alaska Airlines Logo
3:43 pm - 5:41 pm
PHX
-
IAD
22h 58m
1 stop
$323Alaska Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
8:00 am - 12:25 pm
IAD
-
PHX
7h 25m
1 stop
Multiple Airlines Logo
11:30 pm - 5:12 pm
PHX
-
IAD
14h 42m
1 stop
$324Multiple Airlines
Sun, May 10 - Sun, May 17
Multiple Airlines Logo
8:00 am - 10:41 pm
IAD
-
PHX
17h 41m
1 stop
Multiple Airlines Logo
9:00 am - 12:36 am
PHX
-
IAD
12h 36m
2 stops
$325Multiple Airlines
Sun, Apr 12 - Thu, Apr 16
Frontier Logo
12:36 pm - 6:35 pm
IAD
-
PHX
8h 59m
1 stop
Frontier Logo
11:30 pm - 10:12 am
PHX
-
IAD
7h 42m
1 stop
$326Frontier
Sun, May 10 - Sun, May 10
United Airlines Logo
10:10 am - 2:58 pm
IAD
-
PHX
7h 48m
1 stop
United Airlines Logo
7:35 am - 3:01 pm
PHX
-
IAD
4h 26mnonstop
$327United Airlines
Sat, Apr 18 - Wed, Apr 22
Frontier Logo
1:36 pm - 7:35 am
IAD
-
PHX
20h 59m
2 stops
Frontier Logo
12:58 pm - 12:36 am
PHX
-
IAD
8h 38m
1 stop
$328Frontier
Sat, Apr 11 - Wed, Apr 15
Multiple Airlines Logo
8:00 am - 10:41 pm
IAD
-
PHX
17h 41m
1 stop
Multiple Airlines Logo
10:29 pm - 9:54 am
PHX
-
IAD
8h 25m
1 stop
$329Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Frontier Logo
8:20 am - 5:57 pm
IAD
-
PHX
12h 37m
2 stops
Frontier Logo
12:38 pm - 12:36 am
PHX
-
IAD
8h 58m
1 stop
$330Frontier
Tue, Apr 21 - Sat, Apr 25
Frontier Logo
11:17 am - 11:18 pm
IAD
-
PHX
15h 01m
1 stop
Frontier Logo
12:30 am - 7:27 am
PHX
-
IAD
27h 57m
1 stop
$331Frontier
Sun, Apr 26 - Sat, May 2
Multiple Airlines Logo
11:37 am - 3:57 pm
IAD
-
PHX
7h 20m
1 stop
Multiple Airlines Logo
1:00 pm - 7:27 am
PHX
-
IAD
15h 27m
2 stops
$332Multiple Airlines
Mon, Apr 20 - Fri, Apr 24

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

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flight tickets
Alaska Airlines
Apr 29
IAD9:00 amWashington, D.C. Dulles Intl
12h 26m
2 stops
PHX6:26 pmPhoenix Sky Harbor Intl
May 4
PHX3:43 pmPhoenix Sky Harbor Intl
22h 58m
1 stop
IAD5:41 pmWashington, D.C. Dulles Intl
$323
Alaska Airlines
Apr 8
IAD6:22 pmWashington, D.C. Dulles Intl
8h 05m
1 stop
PHX11:27 pmPhoenix Sky Harbor Intl
Apr 13
PHX3:21 pmPhoenix Sky Harbor Intl
23h 01m
1 stop
IAD5:22 pmWashington, D.C. Dulles Intl
$338
Alaska Airlines
Apr 1
IAD6:22 pmWashington, D.C. Dulles Intl
8h 05m
1 stop
PHX11:27 pmPhoenix Sky Harbor Intl
Apr 15
PHX6:00 amPhoenix Sky Harbor Intl
9h 11m
1 stop
IAD6:11 pmWashington, D.C. Dulles Intl
$341

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
May 10
IAD12:36 pmWashington, D.C. Dulles Intl
8h 59m
1 stop
PHX6:35 pmPhoenix Sky Harbor Intl
May 14
PHX11:30 pmPhoenix Sky Harbor Intl
7h 42m
1 stop
IAD10:12 amWashington, D.C. Dulles Intl
$326
Frontier
Apr 11
IAD1:36 pmWashington, D.C. Dulles Intl
20h 59m
2 stops
PHX7:35 amPhoenix Sky Harbor Intl
Apr 15
PHX12:58 pmPhoenix Sky Harbor Intl
8h 38m
1 stop
IAD12:36 amWashington, D.C. Dulles Intl
$328
Frontier
Apr 21
IAD8:20 amWashington, D.C. Dulles Intl
12h 37m
2 stops
PHX5:57 pmPhoenix Sky Harbor Intl
Apr 25
PHX12:38 pmPhoenix Sky Harbor Intl
8h 58m
1 stop
IAD12:36 amWashington, D.C. Dulles Intl
$330

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 March 24, 2026.
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

Cheapest round-trip

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 4/29

9:00 am-6:26 pm

2 stops12h 26m

Phoenix Sky Harbor Intl

Mon 5/4

3:43 pm-5:41 pm

1 stop22h 58m

$323

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 5/10

8:00 am-12:25 pm

1 stop7h 25m

Phoenix Sky Harbor Intl

Sun 5/17

11:30 pm-5:12 pm

1 stop14h 42m

$324

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 4/12

8:00 am-10:41 pm

1 stop17h 41m

Phoenix Sky Harbor Intl

Thu 4/16

9:00 am-12:36 am

2 stops12h 36m

$325

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 5/10

12:36 pm-6:35 pm

1 stop8h 59m

Phoenix Sky Harbor Intl

Sun 5/10

11:30 pm-10:12 am

1 stop7h 42m

$326
Quickest round-trip

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 4/18

10:10 am-2:58 pm

1 stop7h 48m

Phoenix Sky Harbor Intl

Wed 4/22

7:35 am-3:01 pm

Nonstop4h 26m

$327

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 4/11

1:36 pm-7:35 am

2 stops20h 59m

Phoenix Sky Harbor Intl

Wed 4/15

12:58 pm-12:36 am

1 stop8h 38m

$328

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 4/12

8:00 am-10:41 pm

1 stop17h 41m

Phoenix Sky Harbor Intl

Fri 4/17

10:29 pm-9:54 am

1 stop8h 25m

$329

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 4/21

8:20 am-5:57 pm

2 stops12h 37m

Phoenix Sky Harbor Intl

Sat 4/25

12:38 pm-12:36 am

1 stop8h 58m

$330

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 4/26

11:17 am-11:18 pm

1 stop15h 01m

Phoenix Sky Harbor Intl

Sat 5/2

12:30 am-7:27 am

1 stop27h 57m

$331

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 4/20

11:37 am-3:57 pm

1 stop7h 20m

Phoenix Sky Harbor Intl

Fri 4/24

1:00 pm-7:27 am

2 stops15h 27m

$332

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 $328. 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 $381.

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 $439. 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 Monday because tickets tend to average around $525. 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 $451. 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 $539. 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 $420 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 $350 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?

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

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

As of March 2026, prices for Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flights are approximately 1% 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

$213

Fastest flight time

4h 56m

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 $213. 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 $465.
The fastest flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport takes 4h 56m
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 4h 56m 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 $163Free CancellationRating
5.7
3,017 reviews
Search Frontier flights
SouthwestPriceFrom $239Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
DeltaPriceFrom $243Free CancellationRating
7.9
8,325 reviews
Search Delta flights
United AirlinesPriceFrom $274Free CancellationRating
7.4
9,472 reviews
Search United Airlines flights
American AirlinesPriceFrom $376Free CancellationRating
7.1
11,494 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 5 times per week, with 4,331 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in the last 72 hours was $239 (round-trip), much lower than the average airfare cost of $411 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 $274 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $453. United Airlines operates 16 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 9,472 reviews.

Traveling to a place near Phoenix?

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