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

Consider Lufthansa (84%), Southwest (82%) or United Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.

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

The most popular airlines flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

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

Saturday flights are generally found to be more expensive for flights from Phoenix Sky Harbor Intl Airport 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.

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

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

How can I find direct flights from Sky Harbor Intl to Dulles Intl?

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

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

Yes. Cheapflights offers flight deals from Sky Harbor Intl 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.

$118+ Flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport

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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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

Cheap flight deals from Sky Harbor Intl to Dulles Intl

Round-trip from	$254 (Frontier)
One-way from	$118 (Mytrip)
Popular in	January
Cheapest in	August
Average price	$372
Good round-trip deal	$349 or less
Good one-way deal	$197 or less

From Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl

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

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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl.

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Find flight deals from Sky Harbor Intl to Dulles Intl

Cheapest flights from Sky Harbor Intl to Dulles Intl
Explore the most affordable flight options available from Sky Harbor Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

vie. 8/17:17 pmPHX - IAD

1 stop8h 17mFrontier

mié. 8/67:30 amIAD - PHX

1 stop13h 57mFrontier

Deal found 6/10

$254

lun. 6/306:45 pmPHX - IAD

1 stop7h 39mUnited Airlines

vie. 7/46:35 amIAD - PHX

1 stop7h 34mUnited Airlines

Deal found 6/10

$259

jue. 7/317:39 amPHX - IAD

1 stop27h 44mMultiple Airlines

dom. 8/31:28 pmIAD - PHX

1 stop12h 16mMultiple Airlines

Deal found 6/10

$263

mar. 7/2911:08 amPHX - IAD

1 stop21h 35mSun Country Air

dom. 8/31:28 pmIAD - PHX

1 stop12h 16mSun Country Air

Deal found 6/11

$275

sáb. 8/166:05 amPHX - IAD

1 stop7h 25mDelta

mié. 8/206:00 amIAD - PHX

1 stop9h 27mDelta

Deal found 6/10

$277

vie. 8/294:30 pmPHX - IAD

1 stop21h 17mAlaska Airlines

mar. 9/25:52 pmIAD - PHX

1 stop7h 34mAlaska Airlines

Deal found 6/10

$288

jue. 10/2310:25 amPHX - IAD

Nonstop4h 15mSouthwest

lun. 10/276:25 pmIAD - PHX

Nonstop4h 50mSouthwest

Deal found 6/9

$295

lun. 8/256:00 amPHX - IAD

1 stop7h 47mHawaiian Airlines

lun. 8/255:52 pmIAD - PHX

1 stop7h 34mHawaiian Airlines

Deal found 6/12

$331

mié. 10/812:24 pmPHX - IAD

1 stop8h 38mAmerican Airlines

mar. 10/146:05 pmIAD - PHX

2 stops8h 32mAmerican Airlines

Deal found 6/11

$364

Best flights from Sky Harbor Intl to Dulles Intl
Discover carefully curated flight deals from Sky Harbor Intl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

vie. 8/17:17 pmPHX - IAD

1 stop8h 17mFrontier

mié. 8/67:30 amIAD - PHX

1 stop13h 57mFrontier

Deal found 6/10

$254

lun. 6/306:45 pmPHX - IAD

1 stop7h 39mUnited Airlines

vie. 7/46:35 amIAD - PHX

1 stop7h 34mUnited Airlines

Deal found 6/10

$259

jue. 7/317:39 amPHX - IAD

1 stop27h 44mMultiple Airlines

dom. 8/31:28 pmIAD - PHX

1 stop12h 16mMultiple Airlines

Deal found 6/10

$263

mar. 7/2911:08 amPHX - IAD

1 stop21h 35mSun Country Air

dom. 8/31:28 pmIAD - PHX

1 stop12h 16mSun Country Air

Deal found 6/11

$275

sáb. 8/166:05 amPHX - IAD

1 stop7h 25mDelta

mié. 8/206:00 amIAD - PHX

1 stop9h 27mDelta

Deal found 6/10

$277

vie. 8/294:30 pmPHX - IAD

1 stop21h 17mAlaska Airlines

mar. 9/25:52 pmIAD - PHX

1 stop7h 34mAlaska Airlines

Deal found 6/10

$288

lun. 8/256:00 amPHX - IAD

1 stop7h 47mHawaiian Airlines

lun. 8/255:52 pmIAD - PHX

1 stop7h 34mHawaiian Airlines

Deal found 6/12

$331

vie. 8/297:10 amPHX - IAD

1 stop12h 40mSouthwest

mar. 9/24:55 pmIAD - PHX

Nonstop4h 45mSouthwest

Deal found 6/10

$337

lun. 7/712:38 amPHX - IAD

1 stop7h 21mAmerican Airlines

mar. 7/156:44 pmIAD - PHX

1 stop7h 32mAmerican Airlines

Deal found 6/10

$377

Last-minute flights from Sky Harbor Intl to Dulles Intl
Discover last-minute flight deals from Sky Harbor Intl to Dulles Intl. Data last updated junio 12, 2025 and is based on user searches.

mar. 6/1712:38 amPHX - IAD

1 stop7h 22mAmerican Airlines

mié. 6/259:10 amIAD - PHX

1 stop6h 53mAmerican Airlines

Deal found 6/10

$594

mar. 6/1710:10 amPHX - IAD

1 stop22h 33mSun Country Air

dom. 6/2212:46 pmIAD - PHX

1 stop23h 18mSun Country Air

Deal found 6/11

$670

jue. 6/199:46 pmPHX - IAD

2 stops10h 33mMultiple Airlines

lun. 6/234:54 pmIAD - PHX

3 stops30h 27mMultiple Airlines

Deal found 6/10

$432

jue. 6/199:35 amPHX - IAD

Nonstop4h 20mSouthwest

mar. 7/295:35 pmIAD - PHX

Nonstop4h 50mSouthwest

Deal found 6/11

$529

jue. 6/1911:39 pmPHX - IAD

Nonstop4h 23mUnited Airlines

mar. 6/245:34 pmIAD - PHX

Nonstop4h 48mUnited Airlines

Deal found 6/10

$574

vie. 6/2012:45 amPHX - IAD

1 stop7h 37mDelta

mar. 7/16:20 amIAD - PHX

1 stop7h 07mDelta

Deal found 6/9

$549

vie. 6/2010:46 amPHX - IAD

1 stop10h 13mHawaiian Airlines

mar. 7/156:30 amIAD - PHX

1 stop11h 17mHawaiian Airlines

Deal found 6/10

$617

vie. 6/206:00 amPHX - IAD

2 stops13h 39mAlaska Airlines

dom. 6/225:25 pmIAD - PHX

1 stop17h 37mAlaska Airlines

Deal found 6/11

$871

sáb. 6/217:29 pmPHX - IAD

1 stop8h 01mFrontier

mar. 6/247:30 amIAD - PHX

1 stop13h 54mFrontier

Deal found 6/10

$260

lun. 6/306:45 pmPHX - IAD

1 stop7h 39mUnited Airlines

vie. 7/46:35 amIAD - PHX

1 stop7h 34mUnited Airlines

Deal found 6/10

$259

lun. 7/712:38 amPHX - IAD

1 stop7h 21mAmerican Airlines

mar. 7/1511:49 amIAD - PHX

1 stop6h 44mAmerican Airlines

Deal found 6/12

$377

mié. 7/97:17 pmPHX - IAD

1 stop8h 17mFrontier

mié. 7/167:30 amIAD - PHX

1 stop13h 57mFrontier

Deal found 6/12

$255

One-way flights from Sky Harbor Intl to Dulles Intl
Search for one-way flight options from Sky Harbor Intl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

jue. 7/317:39 amPHX - IAD

1 stop27h 44mAllegiant Air

Deal found 6/10

$118

mié. 9/1010:00 amPHX - IAD

Nonstop4h 15mSouthwest

Deal found 6/10

$120

dom. 7/1311:59 pmPHX - IAD

1 stop8h 44mSun Country Air

Deal found 6/10

$123

mié. 9/106:00 amPHX - IAD

1 stop7h 47mHawaiian Airlines

Deal found 6/11

$125

mar. 8/127:17 pmPHX - IAD

1 stop8h 17mFrontier

Deal found 6/12

$128

mié. 8/276:00 amPHX - IAD

1 stop7h 47mAlaska Airlines

Deal found 6/10

$129

vie. 7/47:15 amPHX - IAD

1 stop8h 37mUnited Airlines

Deal found 6/10

$130

lun. 8/1811:59 pmPHX - IAD

1 stop8h 45mDelta

Deal found 6/10

$149

mié. 8/133:16 pmPHX - IAD

2 stops17h 21mMultiple Airlines

Deal found 6/11

$171

vie. 8/2210:50 amPHX - IAD

2 stops9h 06mAmerican Airlines

Deal found 6/12

$194

Cheapflights Fare Finder

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

vie. 8/1

7:17 pm-6:34 am

1 stop8h 17m

Washington, D.C. Dulles Intl

mié. 8/6

7:30 am-6:27 pm

1 stop13h 57m

$254

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

lun. 6/30

6:45 pm-5:24 am

1 stop7h 39m

Washington, D.C. Dulles Intl

vie. 7/4

6:35 am-11:09 am

1 stop7h 34m

$259

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

jue. 7/31

7:39 am-2:23 pm

1 stop27h 44m

Washington, D.C. Dulles Intl

dom. 8/3

1:28 pm-10:44 pm

1 stop12h 16m

$263

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mar. 7/29

11:08 am-11:43 am

1 stop21h 35m

Washington, D.C. Dulles Intl

dom. 8/3

1:28 pm-10:44 pm

1 stop12h 16m

$275

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

sáb. 8/16

6:05 am-4:30 pm

1 stop7h 25m

Washington, D.C. Dulles Intl

mié. 8/20

6:00 am-12:27 pm

1 stop9h 27m

$277

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

vie. 8/29

4:30 pm-4:47 pm

1 stop21h 17m

Washington, D.C. Dulles Intl

mar. 9/2

5:52 pm-10:26 pm

1 stop7h 34m

$288

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

lun. 8/25

6:00 am-4:47 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

lun. 8/25

5:52 pm-10:26 pm

1 stop7h 34m

$331

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

vie. 8/29

7:10 am-10:50 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

mar. 9/2

4:55 pm-6:40 pm

Nonstop4h 45m

$337

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

lun. 7/7

12:38 am-10:59 am

1 stop7h 21m

Washington, D.C. Dulles Intl

mar. 7/15

11:49 am-3:33 pm

1 stop6h 44m

$377

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

jue. 7/31

7:39 am-2:23 pm

1 stop27h 44m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 results

The best insider tips for Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport trip

Airports

PHX

PHX offers short security lines, typically under 10 minutes, with live wait times displayed online for Terminal 4 checkpoints.

IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cost-effective transport option to the city.

Our travel experts

Brandon Schultz

Expert on PHX

Ramsey Qubein

Expert on IAD

Best time to book a flight from Sky Harbor Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Sky Harbor Intl 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 Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport

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

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 45% on the flight price compared to flying at noon, which is usually more expensive.

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

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

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

The most flights from PHX to IAD are scheduled on a Tuesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Phoenix to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,946 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $254, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Sun Country Air - these airlines can fly you to your destination from $259 and $275, respectively. Frontier is currently priced 35% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport one-way?
$118 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on Southwest and Sun Country Air, with prices starting from $120 and $123, respectively.
What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Consider Lufthansa (84%), Southwest (82%) or United Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for $119. While the most popular route (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) can be booked for $239 on average our data indicates $1,695 when flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Sky Harbor Intl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Sky Harbor Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sky Harbor Intl to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Dulles Intl.
Can I find deals for business class flights from Sky Harbor Intl to Dulles Intl?
Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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.

See more FAQs

Arlington

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

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Reston

National Harbor

Springfield

Manassas

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Sky Harbor Intl to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$146	Average$264	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$260	Average$400	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$268	Average$396	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$276	Average$338	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$376	Average$488	FlexibilityNo cancel fee	On-time71%

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$118+ Cheap flights from Sky Harbor Intl (PHX) 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sky Harbor Intl 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 Sky Harbor Intl to Washington, D.C. Dulles Intl are usually found in August or May, booked 90 days in advance, depart on a Friday or Saturday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Sky Harbor Intl to Dulles Intl

Cheapest flights from Sky Harbor Intl to Dulles IntlExplore the most affordable flight options available from Sky Harbor Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from Sky Harbor Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Cheapflights Fare Finder

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.

The best insider tips for Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport trip

Airports

PHX

IAD

Our travel experts

Best time to book a flight from Sky Harbor Intl to Dulles Intl

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Dulles Intl. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl 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 junio 12, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Dulles Intl. Price data was last updated on June 8, 2025.

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Phoenix to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport one-way?

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

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

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Cheapest flights from Sky Harbor Intl to Dulles Intl
Explore the most affordable flight options available from Sky Harbor Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.