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Cheap flights from Phoenix to Washington, D.C. from $124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to Washington, D.C. departing on 10/28. 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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Cheap round-trip flights

Frontier Logo
12:31 pm - 9:17 amPHX-IAD
17h 46m1 stop
Frontier Logo
6:10 am - 3:23 pmIAD-PHX
36h 13m2 stops
$201Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
Frontier Logo
12:37 pm - 11:39 pmPHX-IAD
8h 02m1 stop
Frontier Logo
6:10 am - 1:47 pmIAD-PHX
34h 37m2 stops
$209Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
4:55 pm - 12:02 pmPHX-IAD
16h 07m1 stop
Frontier Logo
10:17 am - 11:16 amIAD-PHX
27h 59m1 stop
$211Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
12:37 pm - 11:39 pmPHX-IAD
8h 02m1 stop
Frontier Logo
1:55 pm - 2:57 pmIAD-PHX
28h 02m1 stop
$212Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
United Airlines Logo
1:45 pm - 9:06 pmPHX-IAD
4h 21mnonstop
United Airlines Logo
5:30 pm - 7:43 pmIAD-PHX
5h 13mnonstop
$213United Airlines
Find Deal
Thu, Oct 23 - Tue, Oct 28
Frontier Logo
8:05 pm - 9:17 amPHX-IAD
10h 12m1 stop
Frontier Logo
6:10 am - 2:57 pmIAD-PHX
11h 47m1 stop
$214Frontier
Find Deal
Thu, Sep 25 - Mon, Sep 29
Alaska Airlines Logo
6:00 am - 4:42 pmPHX-IAD
7h 42m1 stop
Alaska Airlines Logo
5:40 pm - 10:16 pmIAD-PHX
7h 36m1 stop
$216Alaska Airlines
Find Deal
Wed, Oct 22 - Tue, Oct 28
United Airlines Logo
1:45 pm - 9:06 pmPHX-IAD
4h 21mnonstop
United Airlines Logo
2:25 pm - 6:49 pmIAD-PHX
7h 24m1 stop
$244United Airlines
Find Deal
Thu, Oct 23 - Tue, Oct 28
Logo
11:10 am - 12:23 amPHX-IAD
10h 13m1 stop
Logo
9:38 pm - 1:17 pmIAD-PHX
18h 39m1 stop
$264
Find Deal
Tue, Oct 21 - Sat, Oct 25
Logo
6:00 am - 4:34 pmPHX-IAD
8h 34m1 stop
Logo
7:43 am - 5:56 pmIAD-PHX
12h 13m1 stop
$270
Find Deal
Mon, Nov 10 - Sat, Nov 15

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

Our best Frontier deals on Phoenix to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Oct 2
PHX12:31 pmPhoenix Sky Harbor Intl
17h 46m
1 stop
IAD9:17 amWashington, D.C. Dulles Intl
Oct 6
IAD6:10 amWashington, D.C. Dulles Intl
36h 13m
2 stops
PHX3:23 pmPhoenix Sky Harbor Intl
$201
Find similar
Frontier
Oct 3
PHX12:37 pmPhoenix Sky Harbor Intl
8h 02m
1 stop
IAD11:39 pmWashington, D.C. Dulles Intl
Oct 5
IAD6:10 amWashington, D.C. Dulles Intl
34h 37m
2 stops
PHX1:47 pmPhoenix Sky Harbor Intl
$209
Find similar
Frontier
Oct 3
PHX4:55 pmPhoenix Sky Harbor Intl
16h 07m
1 stop
IAD12:02 pmWashington, D.C. Dulles Intl
Oct 5
IAD10:17 amWashington, D.C. Dulles Intl
27h 59m
1 stop
PHX11:16 amPhoenix Sky Harbor Intl
$211
Find similar

United Airlines flights from Phoenix to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Phoenix to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Oct 23
PHX1:45 pmPhoenix Sky Harbor Intl
4h 21m
IAD9:06 pmWashington, D.C. Dulles Intl
Oct 28
IAD5:30 pmWashington, D.C. Dulles Intl
5h 13m
PHX7:43 pmPhoenix Sky Harbor Intl
$213
Find similar
United Airlines
Oct 23
PHX1:45 pmPhoenix Sky Harbor Intl
4h 21m
IAD9:06 pmWashington, D.C. Dulles Intl
Oct 28
IAD2:25 pmWashington, D.C. Dulles Intl
7h 24m
1 stop
PHX6:49 pmPhoenix Sky Harbor Intl
$244
Find similar
United Airlines
Sep 26
PHX1:41 pmPhoenix Sky Harbor Intl
4h 21m
IAD9:02 pmWashington, D.C. Dulles Intl
Oct 6
IAD7:22 pmWashington, D.C. Dulles Intl
7h 53m
1 stop
PHX12:15 amPhoenix Sky Harbor Intl
$477
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix to Washington, D.C. Dulles 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 September 15, 2025.
Use the filters below to find and compare flights from Phoenix to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 10/2

12:31 pm-9:17 am

1 stop17h 46m

Washington, D.C. Dulles Intl

Mon 10/6

6:10 am-3:23 pm

2 stops36h 13m

$201

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/3

12:37 pm-11:39 pm

1 stop8h 02m

Washington, D.C. Dulles Intl

Sun 10/5

6:10 am-1:47 pm

2 stops34h 37m

$209

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/3

4:55 pm-12:02 pm

1 stop16h 07m

Washington, D.C. Dulles Intl

Sun 10/5

10:17 am-11:16 am

1 stop27h 59m

$211

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/3

12:37 pm-11:39 pm

1 stop8h 02m

Washington, D.C. Dulles Intl

Sun 10/5

1:55 pm-2:57 pm

1 stop28h 02m

$212

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 10/23

1:45 pm-9:06 pm

Nonstop4h 21m

Washington, D.C. Dulles Intl

Tue 10/28

5:30 pm-7:43 pm

Nonstop5h 13m

$213

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 9/25

8:05 pm-9:17 am

1 stop10h 12m

Washington, D.C. Dulles Intl

Mon 9/29

6:10 am-2:57 pm

1 stop11h 47m

$214

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/22

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Tue 10/28

5:40 pm-10:16 pm

1 stop7h 36m

$216

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 10/23

1:45 pm-9:06 pm

Nonstop4h 21m

Washington, D.C. Dulles Intl

Tue 10/28

2:25 pm-6:49 pm

1 stop7h 24m

$244

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 10/21

11:10 am-12:23 am

1 stop10h 13m

Washington, D.C. Dulles Intl

Sat 10/25

9:38 pm-1:17 pm

1 stop18h 39m

$264

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mon 11/10

6:00 am-4:34 pm

1 stop8h 34m

Washington, D.C. Dulles Intl

Sat 11/15

7:43 am-5:56 pm

1 stop12h 13m

$270

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 Washington, D.C. from

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

In general, August is the cheapest month to fly from Phoenix to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $351.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $485. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix to Washington, D.C. Dulles Intl Airport for around $719.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Phoenix in the evening is the least expensive time of day to depart. momondo users have found prices as low as $451 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $770 on average. Flights to Washington, D.C. Dulles Intl Airport from Phoenix at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Phoenix for as low as $287 on momondo.

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

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

Cheap Phoenix to Washington, D.C. Dulles Intl Airport flight deals and tips

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

Fastest flight time

4h 00m

Direct flights

Every day
The fastest flight from Phoenix to Washington, D.C. Dulles Intl Airport takes 4h 00m
Direct flights go from Phoenix to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

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

    Phoenix and Washington, D.C. Dulles Intl are 1954.1 mi apart from one another. In terms of flight time, this usually takes a little over 4h 21m.

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

    Prices for flights from Phoenix to Washington, D.C. Dulles Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Phoenix to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $147Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
SouthwestPriceFrom $237Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,954 reviews
Search Delta flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Phoenix.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Phoenix with this policy.

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

Once all potential Phoenix to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Phoenix to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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