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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 4/11. 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.
Frontier Logo
8:09 am - 12:44 am
IAD
-
PHX
18h 35m
1 stop
Frontier Logo
6:50 am - 11:56 pm
PHX
-
IAD
14h 06m
2 stops
$249Frontier
Sat, Mar 7 - Tue, Mar 17
Frontier Logo
10:23 am - 8:52 pm
IAD
-
PHX
12h 29m
1 stop
Frontier Logo
7:23 pm - 9:34 am
PHX
-
IAD
36h 11m
2 stops
$251Frontier
Fri, Feb 20 - Thu, Feb 26
Multiple Airlines Logo
7:05 am - 7:32 pm
IAD
-
PHX
14h 27m
2 stops
Multiple Airlines Logo
1:17 pm - 12:31 am
PHX
-
IAD
8h 14m
1 stop
$252Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
6:20 pm - 11:40 am
IAD
-
PHX
19h 20m
1 stop
Multiple Airlines Logo
11:59 pm - 8:09 am
PHX
-
IAD
30h 10m
1 stop
$253Multiple Airlines
Wed, Feb 18 - Sat, Feb 21
Frontier Logo
6:25 am - 7:37 am
IAD
-
PHX
28h 12m
1 stop
Frontier Logo
6:50 am - 11:56 pm
PHX
-
IAD
14h 06m
2 stops
$254Frontier
Sun, Mar 8 - Tue, Mar 17
Frontier Logo
6:37 pm - 12:55 am
IAD
-
PHX
8h 18m
1 stop
Frontier Logo
5:05 am - 5:57 pm
PHX
-
IAD
10h 52m
1 stop
$256Frontier
Mon, Feb 16 - Thu, Feb 19
Alaska Airlines Logo
6:20 pm - 11:40 am
IAD
-
PHX
19h 20m
1 stop
Alaska Airlines Logo
7:22 pm - 5:27 pm
PHX
-
IAD
19h 05m
1 stop
$257Alaska Airlines
Tue, Mar 3 - Tue, Mar 10
Frontier Logo
10:23 am - 8:52 pm
IAD
-
PHX
12h 29m
1 stop
Frontier Logo
2:12 pm - 9:34 am
PHX
-
IAD
17h 22m
2 stops
$258Frontier
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
8:00 am - 4:21 pm
IAD
-
PHX
10h 21m
1 stop
Multiple Airlines Logo
5:20 am - 9:25 am
PHX
-
IAD
26h 05m
1 stop
$259Multiple Airlines
Tue, Feb 24 - Sun, Mar 1
Frontier Logo
10:23 am - 8:52 pm
IAD
-
PHX
12h 29m
1 stop
Frontier Logo
6:00 am - 4:24 pm
PHX
-
IAD
8h 24m
1 stop
$260Frontier
Fri, Feb 20 - Fri, Feb 27

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
Mar 7
IAD8:09 amWashington, D.C. Dulles Intl
18h 35m
1 stop
PHX12:44 amPhoenix Sky Harbor Intl
Mar 17
PHX6:50 amPhoenix Sky Harbor Intl
14h 06m
2 stops
IAD11:56 pmWashington, D.C. Dulles Intl
$249
Frontier
Feb 20
IAD10:23 amWashington, D.C. Dulles Intl
12h 29m
1 stop
PHX8:52 pmPhoenix Sky Harbor Intl
Feb 26
PHX7:23 pmPhoenix Sky Harbor Intl
36h 11m
2 stops
IAD9:34 amWashington, D.C. Dulles Intl
$251
Frontier
Mar 8
IAD6:25 amWashington, D.C. Dulles Intl
28h 12m
1 stop
PHX7:37 amPhoenix Sky Harbor Intl
Mar 17
PHX6:50 amPhoenix Sky Harbor Intl
14h 06m
2 stops
IAD11:56 pmWashington, D.C. Dulles Intl
$254

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
Mar 3
IAD6:20 pmWashington, D.C. Dulles Intl
19h 20m
1 stop
PHX11:40 amPhoenix Sky Harbor Intl
Mar 10
PHX7:22 pmPhoenix Sky Harbor Intl
19h 05m
1 stop
IAD5:27 pmWashington, D.C. Dulles Intl
$257
Alaska Airlines
Mar 7
IAD6:20 pmWashington, D.C. Dulles Intl
18h 20m
1 stop
PHX10:40 amPhoenix Sky Harbor Intl
Mar 10
PHX11:22 amPhoenix Sky Harbor Intl
27h 05m
1 stop
IAD5:27 pmWashington, D.C. Dulles Intl
$268
Alaska Airlines
Feb 18
IAD6:20 pmWashington, D.C. Dulles Intl
19h 20m
1 stop
PHX11:40 amPhoenix Sky Harbor Intl
Feb 24
PHX12:28 pmPhoenix Sky Harbor Intl
26h 59m
1 stop
IAD5:27 pmWashington, D.C. Dulles Intl
$275

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 February 3, 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

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 3/7

8:09 am-12:44 am

1 stop18h 35m

Phoenix Sky Harbor Intl

Tue 3/17

6:50 am-11:56 pm

2 stops14h 06m

$249

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 2/20

10:23 am-8:52 pm

1 stop12h 29m

Phoenix Sky Harbor Intl

Thu 2/26

7:23 pm-9:34 am

2 stops36h 11m

$251

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-7:32 pm

2 stops14h 27m

Phoenix Sky Harbor Intl

Wed 3/11

1:17 pm-12:31 am

1 stop8h 14m

$252

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 2/18

6:20 pm-11:40 am

1 stop19h 20m

Phoenix Sky Harbor Intl

Sat 2/21

11:59 pm-8:09 am

1 stop30h 10m

$253

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 3/8

6:25 am-7:37 am

1 stop28h 12m

Phoenix Sky Harbor Intl

Tue 3/17

6:50 am-11:56 pm

2 stops14h 06m

$254

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 2/16

6:37 pm-12:55 am

1 stop8h 18m

Phoenix Sky Harbor Intl

Thu 2/19

5:05 am-5:57 pm

1 stop10h 52m

$256

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 3/3

6:20 pm-11:40 am

1 stop19h 20m

Phoenix Sky Harbor Intl

Tue 3/10

7:22 pm-5:27 pm

1 stop19h 05m

$257

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 2/20

10:23 am-8:52 pm

1 stop12h 29m

Phoenix Sky Harbor Intl

Fri 2/27

2:12 pm-9:34 am

2 stops17h 22m

$258

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 2/24

8:00 am-4:21 pm

1 stop10h 21m

Phoenix Sky Harbor Intl

Sun 3/1

5:20 am-9:25 am

1 stop26h 05m

$259

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 2/20

10:23 am-8:52 pm

1 stop12h 29m

Phoenix Sky Harbor Intl

Fri 2/27

6:00 am-4:24 pm

1 stop8h 24m

$260

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 $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 $420. 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 $507. 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 $435. 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 $526. 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 $409 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 $270 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 February 2026, prices for Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport flights are approximately 16% cheaper 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

$209

Fastest flight time

4h 45m

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 $209. 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 $433.
The fastest flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport takes 4h 45m
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 45m 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 $158Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
DeltaPriceFrom $176Free CancellationRating
7.9
8,138 reviews
Search Delta flights
SouthwestPriceFrom $252Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
United AirlinesPriceFrom $273Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
American AirlinesPriceFrom $366Free CancellationRating
7.2
11,216 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 4 times per week, with 4,272 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 $252 (round-trip), much lower than the average airfare cost of $395 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 $273 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $429. United Airlines operates 10 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 9,236 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
Peoria
Casa Grande
Surprise
Goodyear
Buckeye
Payson
Apache Junction
Paradise Valley
Avondale
Wickenburg
Camp Verde
Guadalupe
Litchfield Park
Fountain Hills

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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