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Cheap flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. from $118

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 Sky Harbor Intl Airport to Washington, D.C. departing on 12/6. 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 Phoenix Sky Harbor Intl Airport to Washington, D.C.

Cheap round-trip flights

Frontier Logo
11:24 pm - 8:53 pmPHX-IAD
18h 29m1 stop
Frontier Logo
6:15 am - 3:05 pmIAD-PHX
11h 50m1 stop
$207Frontier
Find Deal
Fr, Okt 24 - Mo, Okt 27
Frontier Logo
5:05 am - 11:29 pmPHX-IAD
15h 24m2 stops
Frontier Logo
8:40 am - 9:58 pmIAD-PHX
15h 18m2 stops
$208Frontier
Find Deal
Do, Okt 30 - Mi, Nov 5
Frontier Logo
5:29 pm - 3:26 pmPHX-IAD
18h 57m2 stops
Frontier Logo
6:15 am - 11:54 pmIAD-PHX
20h 39m2 stops
$209Frontier
Find Deal
Fr, Okt 17 - Mo, Okt 20
Frontier Logo
12:44 pm - 11:59 amPHX-IAD
20h 15m1 stop
Frontier Logo
6:15 am - 3:05 pmIAD-PHX
11h 50m1 stop
$210Frontier
Find Deal
Fr, Okt 10 - Fr, Okt 17
Frontier Logo
7:30 pm - 3:38 pmPHX-IAD
17h 08m2 stops
Frontier Logo
8:47 am - 5:01 pmIAD-PHX
11h 14m2 stops
$212Frontier
Find Deal
Mi, Okt 22 - Mi, Okt 29
Frontier Logo
5:25 am - 12:11 amPHX-IAD
16h 46m2 stops
Frontier Logo
10:54 pm - 3:03 pmIAD-PHX
18h 09m2 stops
$215Frontier
Find Deal
Do, Nov 6 - So, Nov 9
Frontier Logo
4:14 pm - 3:38 pmPHX-IAD
20h 24m2 stops
Frontier Logo
8:53 pm - 3:04 pmIAD-PHX
21h 11m2 stops
$216Frontier
Find Deal
Mi, Okt 22 - Fr, Okt 24
Frontier Logo
7:00 am - 8:20 pmPHX-IAD
11h 20m2 stops
Frontier Logo
6:00 am - 11:03 pmIAD-PHX
19h 03m2 stops
$217Frontier
Find Deal
Di, Nov 11 - Do, Nov 13
Multiple Airlines Logo
6:53 pm - 11:20 amPHX-IAD
13h 27m1 stop
Multiple Airlines Logo
6:15 am - 3:05 pmIAD-PHX
11h 50m1 stop
$256Multiple Airlines
Find Deal
Do, Okt 23 - Mo, Okt 27
Hawaiian Airlines Logo
6:00 am - 4:42 pmPHX-IAD
7h 42m1 stop
Hawaiian Airlines Logo
6:25 am - 2:44 pmIAD-PHX
11h 19m1 stop
$301Hawaiian Airlines
Find Deal
Sa, Okt 18 - Sa, Okt 25

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

Our best Frontier deals on Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Oct 24
PHX11:24 pmPhoenix Sky Harbor Intl
18h 29m
1 stop
IAD8:53 pmWashington, D.C. Dulles Intl
Oct 27
IAD6:15 amWashington, D.C. Dulles Intl
11h 50m
1 stop
PHX3:05 pmPhoenix Sky Harbor Intl
$207
Find similar
Frontier
Oct 30
PHX5:05 amPhoenix Sky Harbor Intl
15h 24m
2 stops
IAD11:29 pmWashington, D.C. Dulles Intl
Nov 5
IAD8:40 amWashington, D.C. Dulles Intl
15h 18m
2 stops
PHX9:58 pmPhoenix Sky Harbor Intl
$208
Find similar
Frontier
Oct 17
PHX5:29 pmPhoenix Sky Harbor Intl
18h 57m
2 stops
IAD3:26 pmWashington, D.C. Dulles Intl
Oct 20
IAD6:15 amWashington, D.C. Dulles Intl
20h 39m
2 stops
PHX11:54 pmPhoenix Sky Harbor Intl
$209
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport 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 23, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport 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

Fr 10/24

11:24 pm-8:53 pm

1 stop18h 29m

Washington, D.C. Dulles Intl

Mo 10/27

6:15 am-3:05 pm

1 stop11h 50m

$207

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Do 10/30

5:05 am-11:29 pm

2 stops15h 24m

Washington, D.C. Dulles Intl

Mi 11/5

8:40 am-9:58 pm

2 stops15h 18m

$208

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fr 10/17

5:29 pm-3:26 pm

2 stops18h 57m

Washington, D.C. Dulles Intl

Mo 10/20

6:15 am-11:54 pm

2 stops20h 39m

$209

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fr 10/10

12:44 pm-11:59 am

1 stop20h 15m

Washington, D.C. Dulles Intl

Fr 10/17

6:15 am-3:05 pm

1 stop11h 50m

$210

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mi 10/22

7:30 pm-3:38 pm

2 stops17h 08m

Washington, D.C. Dulles Intl

Mi 10/29

8:47 am-5:01 pm

2 stops11h 14m

$212

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Do 11/6

5:25 am-12:11 am

2 stops16h 46m

Washington, D.C. Dulles Intl

So 11/9

10:54 pm-3:03 pm

2 stops18h 09m

$215

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mi 10/22

4:14 pm-3:38 pm

2 stops20h 24m

Washington, D.C. Dulles Intl

Fr 10/24

8:53 pm-3:04 pm

2 stops21h 11m

$216

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Di 11/11

7:00 am-8:20 pm

2 stops11h 20m

Washington, D.C. Dulles Intl

Do 11/13

6:00 am-11:03 pm

2 stops19h 03m

$217

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Do 10/23

6:53 pm-11:20 am

1 stop13h 27m

Washington, D.C. Dulles Intl

Mo 10/27

6:15 am-3:05 pm

1 stop11h 50m

$256

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Sa 10/18

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Sa 10/25

6:25 am-2:44 pm

1 stop11h 19m

$301

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $456 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 $752 on average. Flights to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl for the best Phoenix Sky Harbor Intl - 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport for as low as $287 on momondo.

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

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl 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.

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

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

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

As of September 2025, prices for Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 30% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$185

Fastest flight time

4h 00m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport in the past 72 hours is $185. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $423.
The fastest flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport takes 4h 00m
Direct flights go from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

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

    The distance between Phoenix Sky Harbor Intl and Washington, D.C. Dulles Intl is about 1950.3 mi. 6h 39m is a normal flight duration for this route.

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

    Prices for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

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

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

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

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

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $147Free CancellationRating
5.8
3,165 reviews
Search Frontier flights
SouthwestPriceFrom $237Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
United AirlinesPriceFrom $267Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,974 reviews
Search Delta flights

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

    Across 5 Southwest flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport this week, the average price was $386, with the best Southwest deals starting from $237 round-trip. 4,244 users have rated Southwest on momondo, with an average score of 8.0/10.

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

    $267 is the best United Airlines flight deal from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $398, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,926 user reviews) flies into Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport 6 times in an average week so prices can vary.

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.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Phoenix to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Phoenix. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Phoenix to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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