How long is the flight from Phoenix to Washington, D.C. Dulles Intl Airport?

Frontier and United Airlines can get you from Phoenix to Washington, D.C. Dulles Intl Airport in just under 4h 21m. Your travel time can differ by up to 10h 53m. The distance between Phoenix and Washington, D.C. Dulles Intl Airport is about 1950 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Phoenix to Washington, D.C. Dulles Intl Airport round-trip?

Our cheapest airline available from Phoenix to Washington, D.C. Dulles Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $147 on this airline. Additional options worth looking into are Southwest and United Airlines, starting at $236 and $266 round-trip. Frontier is 62% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the cheapest flights from Phoenix to Washington, D.C. Dulles Intl Airport?

On average you can expect to pay $1,034 for a flight from Phoenix to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $103 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $165.

What are the most reliable airlines from Phoenix to Washington, D.C. Dulles Intl Airport?

The top 3 most reliable airlines when flying from Phoenix to Washington, D.C. Dulles Intl Airport are United Airlines (79%), Southwest (78%) and Austrian Airlines (71%).

What are the most popular airlines that fly from Phoenix to Washington, D.C. Dulles Intl Airport?

When booking a flight from Phoenix to Washington, D.C. Dulles Intl Airport, you may want to consider flying on Delta, Frontier or United Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from Phoenix to Washington, D.C. Dulles Intl Airport?

Saturday flights are generally found to be more expensive for flights from Phoenix to Washington, D.C. Dulles Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

What is the cheapest month to fly from Phoenix to Washington, D.C. Dulles Intl Airport?

August can be a great time to fly to Washington, D.C. Dulles Intl Airport from Phoenix with a flight ticket averaging about $368. Cheapflights users have found deals in the month of August for as cheap as $211. The most expensive prices can be found in the month of March.

Can I find deals for flights from Phoenix to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Phoenix to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Phoenix to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Dulles Intl.

Can I find deals for business class flights from Phoenix to Dulles Intl?

Yes. Cheapflights offers flight deals from Phoenix to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$123+ Cheap Flights from Phoenix to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Phoenix to Washington, D.C. Dulles Intl are usually found in August or September, booked 90 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Phoenix to Dulles Intl

Round-trip from	$206 (Priceline)
One-way from	$123 (Kiwi.com)
Popular in	January
Cheapest in	August
Average price	$344

From Phoenix to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Phoenix to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Phoenix to Dulles Intl

Cheapest flights from Phoenix to Dulles Intl
Explore the most affordable flight options available from Phoenix to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 10/166:00 amPHX - IAD

1 stop6h 38mFrontier

Thu 10/236:15 amIAD - PHX

1 stop11h 50mFrontier

Deal found 9/10

$206

Mon 11/36:00 amPHX - IAD

1 stop9h 23mFrontier

Fri 11/146:00 amIAD - PHX

2 stops19h 50mFrontier

Deal found 9/10

$207

Sat 11/11:28 pmPHX - IAD

1 stop7h 27mFrontier

Sun 11/25:29 pmIAD - PHX

1 stop23h 34mFrontier

Deal found 9/10

$208

Fri 9/2612:37 pmPHX - IAD

1 stop8h 38mFrontier

Sun 9/286:10 amIAD - PHX

1 stop11h 47mFrontier

Deal found 9/10

$212

Mon 9/297:25 amPHX - IAD

2 stops13h 50mFrontier

Fri 10/36:10 amIAD - PHX

1 stop8h 22mFrontier

Deal found 9/11

$214

Fri 10/36:00 amPHX - IAD

1 stop7h 52mAlaska Airlines

Tue 10/75:42 pmIAD - PHX

1 stop7h 57mAlaska Airlines

Deal found 9/11

$216

Wed 10/2210:59 pmPHX - IAD

1 stop17h 08mFrontier

Mon 10/276:15 amIAD - PHX

1 stop11h 50mFrontier

Deal found 9/11

$218

Thu 9/254:35 pmPHX - IAD

2 stops17h 20mFrontier

Mon 9/296:10 amIAD - PHX

1 stop11h 47mFrontier

Deal found 9/10

$219

Sun 9/216:00 amPHX - IAD

1 stop15h 15mFrontier

Mon 9/2210:17 amIAD - PHX

1 stop29h 48mFrontier

Deal found 9/9

$220

Wed 10/19:49 amPHX - IAD

1 stop8h 18mUnited Airlines

Fri 10/38:55 amIAD - PHX

Nonstop4h 48mUnited Airlines

Deal found 9/10

$221

Thu 10/166:00 amPHX - IAD

1 stop6h 38mFrontier

Sun 10/198:02 pmIAD - PHX

1 stop20h 15mFrontier

Deal found 9/11

$222

Best flights from Phoenix to Dulles Intl
Discover carefully curated flight deals from Phoenix to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Thu 10/2310:59 pmPHX - IAD

1 stop19h 14mMultiple Airlines

Wed 10/295:40 pmIAD - PHX

1 stop7h 36mMultiple Airlines

Deal found 9/11

$216

Thu 10/235:15 amPHX - IAD

2 stops15h 14mFrontier

Wed 10/298:47 amIAD - PHX

2 stops11h 14mFrontier

Deal found 9/11

$223

Thu 10/231:45 pmPHX - IAD

Nonstop4h 21mUnited Airlines

Wed 10/293:59 pmIAD - PHX

1 stop8h 41mUnited Airlines

Deal found 9/11

$244

Tue 10/1411:57 amPHX - IAD

1 stop25h 45mAlaska Airlines

Tue 10/285:40 pmIAD - PHX

1 stop7h 36mAlaska Airlines

Deal found 9/11

$246

Wed 11/1211:15 amPHX - IAD

2 stops8h 55mSouthwest

Sat 11/153:55 pmIAD - PHX

1 stop6h 50mSouthwest

Deal found 9/11

$263

Thu 11/62:20 pmPHX - IAD

1 stop7h 13mDelta

Sun 11/97:10 amIAD - PHX

1 stop7h 58mDelta

Deal found 9/10

$277

Fri 10/175:29 pmPHX - IAD

2 stops18h 57mFrontier

Mon 10/204:45 pmIAD - PHX

2 stops10h 09mFrontier

Deal found 9/11

$224

Tue 10/1411:57 amPHX - IAD

1 stop25h 45mAlaska Airlines

Wed 10/155:42 pmIAD - PHX

1 stop7h 57mAlaska Airlines

Deal found 9/11

$246

Tue 11/183:12 pmPHX - IAD

Nonstop4h 13mUnited Airlines

Thu 11/206:00 amIAD - PHX

1 stop8h 11mUnited Airlines

Deal found 9/11

$281

Fri 10/104:17 pmPHX - IAD

1 stop21h 25mAlaska Airlines

Fri 10/175:42 pmIAD - PHX

1 stop7h 57mAlaska Airlines

Deal found 9/11

$261

Tue 10/78:45 amPHX - IAD

Nonstop4h 27mUnited Airlines

Mon 10/137:22 pmIAD - PHX

1 stop7h 53mUnited Airlines

Deal found 9/9

$292

Last-minute flights from Phoenix to Dulles Intl
Discover last-minute flight deals from Phoenix to Dulles Intl. Data last updated September 11, 2025 and is based on user searches.

Sun 9/216:00 amPHX - IAD

1 stop15h 15mFrontier

Mon 9/2210:17 amIAD - PHX

1 stop29h 48mFrontier

Deal found 9/9

$220

Thu 9/254:35 pmPHX - IAD

2 stops17h 20mFrontier

Mon 9/296:10 amIAD - PHX

1 stop11h 47mFrontier

Deal found 9/10

$219

Fri 9/2612:37 pmPHX - IAD

1 stop8h 38mFrontier

Sun 9/286:10 amIAD - PHX

1 stop11h 47mFrontier

Deal found 9/10

$212

Mon 9/297:25 amPHX - IAD

2 stops13h 50mFrontier

Fri 10/36:10 amIAD - PHX

1 stop8h 22mFrontier

Deal found 9/11

$214

Wed 10/19:49 amPHX - IAD

1 stop8h 18mUnited Airlines

Fri 10/38:55 amIAD - PHX

Nonstop4h 48mUnited Airlines

Deal found 9/10

$221

Fri 10/312:37 pmPHX - IAD

1 stop8h 02mFrontier

Tue 10/79:00 amIAD - PHX

2 stops33h 23mFrontier

Deal found 9/10

$207

Fri 10/36:00 amPHX - IAD

1 stop7h 52mAlaska Airlines

Tue 10/75:42 pmIAD - PHX

1 stop7h 57mAlaska Airlines

Deal found 9/11

$216

Sat 10/42:05 pmPHX - IAD

1 stop16h 12mFrontier

Mon 10/66:10 amIAD - PHX

2 stops36h 13mFrontier

Deal found 9/11

$224

Fri 10/1011:24 pmPHX - IAD

1 stop18h 29mMultiple Airlines

Wed 10/155:42 pmIAD - PHX

1 stop7h 57mMultiple Airlines

Deal found 9/10

$223

Thu 10/166:00 amPHX - IAD

1 stop6h 38mFrontier

Thu 10/236:15 amIAD - PHX

1 stop11h 50mFrontier

Deal found 9/10

$206

Thu 10/166:00 amPHX - IAD

1 stop6h 38mFrontier

Sun 10/198:02 pmIAD - PHX

1 stop20h 15mFrontier

Deal found 9/11

$222

Wed 10/2210:59 pmPHX - IAD

1 stop17h 08mFrontier

Mon 10/276:15 amIAD - PHX

1 stop11h 50mFrontier

Deal found 9/11

$218

One-way flights from Phoenix to Dulles Intl
Search for one-way flight options from Phoenix to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Thu 10/165:45 amPHX - IAD

2 stops24h 24mFrontier

Deal found 9/9

$123

Tue 9/302:10 pmPHX - IAD

2 stops26h 45mFrontier

Deal found 9/10

$124

Fri 10/32:25 pmPHX - IAD

2 stops39h 52mFrontier

Deal found 9/10

$125

Wed 10/11:02 pmPHX - IAD

3 stops20h 53mMultiple Airlines

Deal found 9/10

$126

Mon 9/292:47 pmPHX - IAD

2 stops26h 08mMultiple Airlines

Deal found 9/9

$127

Wed 10/11:45 pmPHX - IAD

Nonstop4h 21mUnited Airlines

Deal found 9/11

$128

Sat 11/83:12 pmPHX - IAD

Nonstop4h 13mUnited Airlines

Deal found 9/11

$130

Mon 11/105:37 pmPHX - IAD

2 stops15h 46mMultiple Airlines

Deal found 9/11

$131

Sat 11/228:06 pmPHX - IAD

1 stop13h 23mSun Country Air

Deal found 9/10

$132

Wed 12/109:11 pmPHX - IAD

2 stops25h 08mFrontier

Deal found 9/11

$133

Tue 11/117:00 amPHX - IAD

2 stops35h 20mFrontier

Deal found 9/10

$134

Sat 10/185:15 amPHX - IAD

2 stops15h 14mFrontier

Deal found 9/11

$135

Cheapflights Fare Finder

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 10/23

10:59 pm-9:13 pm

1 stop19h 14m

Washington, D.C. Dulles Intl

Wed 10/29

5:40 pm-10:16 pm

1 stop7h 36m

$216

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 10/23

5:15 am-11:29 pm

2 stops15h 14m

Washington, D.C. Dulles Intl

Wed 10/29

8:47 am-5:01 pm

2 stops11h 14m

$223

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/17

5:29 pm-3:26 pm

2 stops18h 57m

Washington, D.C. Dulles Intl

Mon 10/20

4:45 pm-11:54 pm

2 stops10h 09m

$224

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

Wed 10/29

3:59 pm-9:40 pm

1 stop8h 41m

$244

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 10/14

11:57 am-4:42 pm

1 stop25h 45m

Washington, D.C. Dulles Intl

Tue 10/28

5:40 pm-10:16 pm

1 stop7h 36m

$246

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 10/14

11:57 am-4:42 pm

1 stop25h 45m

Washington, D.C. Dulles Intl

Wed 10/15

5:42 pm-10:39 pm

1 stop7h 57m

$246

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/10

4:17 pm-4:42 pm

1 stop21h 25m

Washington, D.C. Dulles Intl

Fri 10/17

5:42 pm-10:39 pm

1 stop7h 57m

$261

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 11/12

11:15 am-10:10 pm

2 stops8h 55m

Washington, D.C. Dulles Intl

Sat 11/15

3:55 pm-8:45 pm

1 stop6h 50m

$263

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 11/6

2:20 pm-11:33 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

Sun 11/9

7:10 am-1:08 pm

1 stop7h 58m

$277

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 11/18

3:12 pm-9:25 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Thu 11/20

6:00 am-12:11 pm

1 stop8h 11m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 22 results

Best time to book a flight from Phoenix to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Phoenix with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?

The price you pay for your flight from Phoenix to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Phoenix to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Phoenix to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to IAD?

It’s typically best to fly out from Phoenix to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 42% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Phoenix to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Phoenix to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix to Washington, D.C. Dulles Intl Airport

The most flights from PH1 to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Phoenix to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,960 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,937 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,177 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

How long is the flight from Phoenix to Washington, D.C. Dulles Intl Airport?
Frontier and United Airlines can get you from Phoenix to Washington, D.C. Dulles Intl Airport in just under 4h 21m. Your travel time can differ by up to 10h 53m. The distance between Phoenix and Washington, D.C. Dulles Intl Airport is about 1950 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Phoenix to Washington, D.C. Dulles Intl Airport round-trip?
Our cheapest airline available from Phoenix to Washington, D.C. Dulles Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $147 on this airline. Additional options worth looking into are Southwest and United Airlines, starting at $236 and $266 round-trip. Frontier is 62% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Phoenix to Washington, D.C. Dulles Intl Airport?
The top 3 most reliable airlines when flying from Phoenix to Washington, D.C. Dulles Intl Airport are United Airlines (79%), Southwest (78%) and Austrian Airlines (71%).
What are the cheapest flights from Phoenix to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay $1,034 for a flight from Phoenix to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $103 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $165.
Can I find deals for flights from Phoenix to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Phoenix to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Phoenix to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Dulles Intl.
Can I find deals for business class flights from Phoenix to Dulles Intl?
Yes. Cheapflights offers flight deals from Phoenix to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Phoenix to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Phoenix to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 4 airlines flying from Phoenix to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$147	Average$264	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$236	Average$386	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$266	Average$400	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$276	Average$337	FlexibilityNo cancel fee	On-timeN/A

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$123+ Cheap flights from Phoenix to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Phoenix to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Phoenix to Washington, D.C. Dulles Intl are usually found in August or September, booked 90 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Phoenix to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Phoenix to Dulles Intl

Cheapest flights from Phoenix to Dulles IntlExplore the most affordable flight options available from Phoenix to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Phoenix to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phoenix to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Phoenix to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Phoenix with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Dulles Intl. Price data was last updated on August 29, 2025.

What is the cheapest month to book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to fly from PHX to IAD?

Find hourly flight availability from Phoenix to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

What is the cheapest day to fly from Phoenix to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Dulles Intl. Price data was last updated on December 16, 2024.

Weekly flight availability from Phoenix to Washington, D.C. Dulles Intl Airport

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Phoenix to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines flying from Phoenix to Washington, D.C. Dulles Intl Airport round-trip?

What are the most reliable airlines from Phoenix to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Phoenix to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Phoenix to Dulles Intl that include hotel bookings?

How can I find direct flights from Phoenix to Dulles Intl?

Can I find deals for business class flights from Phoenix to Dulles Intl?

What is the cheapest month to book a flight from Phoenix to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phoenix to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Phoenix to Dulles Intl

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Cheapest flights from Phoenix to Dulles Intl
Explore the most affordable flight options available from Phoenix to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.