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

Southwest, Frontier, and United Airlines can get you from Phoenix Sky Harbor Intl Airport to Washington, D.C. in just under 4h 15m. Your travel time can differ by up to 4h 25m. Airlines will cover a distance of 1992 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Currently priced at $147, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Washington, D.C. and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $236 and $256, respectively. Frontier is priced at 59% lower than the current average price of a flight leaving 3 months from now.

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

For one-way options, check prices for Southwest. According to our data, you can fly for as low as $87. Users have also found prices from $90 and $128 on Frontier and United Airlines, respectively.

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 most popular routes from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Most travelers choose Phoenix Sky Harbor Intl - Washington, D.C. Reagan-National, Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl or Phoenix Sky Harbor Intl - Baltimore/Washington when deciding on the best route from Phoenix Sky Harbor Intl Airport to Washington, D.C..

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

The cheapest flight price from Phoenix Sky Harbor Intl Airport to Washington, D.C. is $103. On average you can expect to pay $1,034. The most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Reagan-National), can usually be booked for $167.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix Sky Harbor Intl Airport to Washington, D.C. on time: United Airlines (79%), Southwest (78%), Austrian Airlines (71%).

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

When booking a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C., 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 Sky Harbor Intl Airport to Washington, D.C.?

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 41% on your flight compared to booking on days when demand is much higher.

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

Flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. lean towards being more expensive in March. Prices are generally better when you fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. in August, with the cheapest ticket starting at $211.

Can I find deals for flights from Sky Harbor Intl to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Sky Harbor Intl to Washington, D.C.?

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 Washington, D.C..

Can I find deals for business class flights from Sky Harbor Intl to Washington, D.C.?

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

$82+ Flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.

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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Washington, D.C. are usually found in August or April, booked 88 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to Washington, D.C.

Round-trip from	$165 (CheapOair)
One-way from	$82 (Kiwi.com)
Popular in	March
Cheapest in	August
Average price	$366
Good round-trip deal	$334 or less
Good one-way deal	$188 or less

From Phoenix Sky Harbor Intl to Washington, D.C. (WAS)

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One-way flight from Phoenix Sky Harbor Intl to Washington, D.C. (WAS)

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High demand for flights, 1% potential price rise

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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

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

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Find flight deals from Sky Harbor Intl to Washington, D.C.

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

Mon 11/36:00 amPHX - BWI

1 stop7h 30mFrontier

Fri 11/147:25 pmBWI - PHX

1 stop24h 25mFrontier

Deal found 9/10

$165

Wed 10/2210:59 pmPHX - BWI

1 stop8h 31mFrontier

Mon 10/276:29 pmBWI - PHX

1 stop6h 47mFrontier

Deal found 9/10

$172

Tue 10/149:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Tue 10/288:10 pmBWI - PHX

Nonstop4h 55mSouthwest

Deal found 9/10

$174

Fri 11/76:00 amPHX - BWI

1 stop16h 13mFrontier

Sun 11/99:59 pmBWI - PHX

1 stop27h 51mFrontier

Deal found 9/10

$181

Thu 11/66:00 amPHX - BWI

1 stop13h 03mFrontier

Sun 11/99:59 pmBWI - PHX

1 stop16h 05mFrontier

Deal found 9/10

$183

Thu 10/22:25 pmPHX - BWI

1 stop13h 36mMultiple Airlines

Tue 10/75:35 amBWI - PHX

1 stop16h 30mMultiple Airlines

Deal found 9/10

$184

Tue 10/211:16 pmPHX - BWI

1 stop12h 14mMultiple Airlines

Sat 10/255:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$186

Tue 10/219:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Sat 10/253:05 pmBWI - PHX

1 stop6h 40mSouthwest

Deal found 9/9

$188

Wed 10/88:00 amPHX - BWI

1 stop17h 30mMultiple Airlines

Sat 10/115:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$190

Mon 10/2010:55 pmPHX - BWI

1 stop8h 25mMultiple Airlines

Sat 10/255:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$192

Tue 10/211:16 pmPHX - BWI

1 stop12h 14mMultiple Airlines

Sun 10/2611:14 amBWI - PHX

1 stop26h 59mMultiple Airlines

Deal found 9/9

$194

Mon 10/277:59 pmPHX - DCA

1 stop23h 00mFrontier

Wed 10/292:00 pmDCA - PHX

1 stop10h 58mFrontier

Deal found 9/8

$205

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

Tue 10/149:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Tue 10/288:10 pmBWI - PHX

Nonstop4h 55mSouthwest

Deal found 9/10

$174

Thu 10/165:49 pmPHX - BWI

1 stop9h 46mMultiple Airlines

Sun 10/196:21 pmBWI - PHX

1 stop29h 27mMultiple Airlines

Deal found 9/11

$208

Fri 9/2612:37 pmPHX - BWI

1 stop8h 40mFrontier

Sun 9/286:22 amBWI - PHX

1 stop11h 35mFrontier

Deal found 9/10

$212

Sat 2/217:00 amPHX - BWI

1 stop7h 25mUnited Airlines

Tue 2/245:50 pmBWI - PHX

1 stop8h 04mUnited Airlines

Deal found 9/10

$240

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

Fri 9/2612:01 pmPHX - BWI

1 stop8h 24mSpirit Airlines

Sun 9/284:27 pmBWI - PHX

1 stop22h 56mSpirit Airlines

Deal found 9/9

$271

Wed 11/1212:59 amPHX - BWI

1 stop7h 49mDelta

Sun 11/166:00 amBWI - PHX

1 stop7h 23mDelta

Deal found 9/11

$277

Wed 12/32:50 pmPHX - DCA

2 stops7h 05mSouthwest

Sun 12/74:35 pmDCA - PHX

1 stop6h 25mSouthwest

Deal found 9/10

$208

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

Wed 12/32:50 pmPHX - DCA

2 stops7h 05mSouthwest

Sat 12/66:05 amDCA - PHX

2 stops9h 00mSouthwest

Deal found 9/9

$213

Thu 10/231:45 pmPHX - IAD

Nonstop4h 21mUnited Airlines

Wed 10/293:59 pmIAD - PHX

1 stop8h 41mUnited Airlines

Deal found 9/11

$244

Last-minute flights from Sky Harbor Intl to Washington, D.C.
Discover last-minute flight deals from Sky Harbor Intl to Washington, D.C.. Data last updated September 11, 2025 and is based on user searches.

Tue 9/301:02 pmPHX - BWI

1 stop12h 28mMultiple Airlines

Tue 10/145:35 amBWI - PHX

1 stop16h 30mMultiple Airlines

Deal found 9/8

$195

Thu 10/22:25 pmPHX - BWI

1 stop13h 36mMultiple Airlines

Tue 10/75:35 amBWI - PHX

1 stop16h 30mMultiple Airlines

Deal found 9/10

$184

Wed 10/88:00 amPHX - BWI

1 stop17h 30mMultiple Airlines

Sat 10/115:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$190

Tue 10/149:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Tue 10/281:15 pmBWI - PHX

1 stop6h 10mSouthwest

Deal found 9/10

$174

Tue 10/148:00 amPHX - BWI

1 stop17h 30mMultiple Airlines

Tue 10/285:35 amBWI - PHX

1 stop19h 48mMultiple Airlines

Deal found 9/10

$181

Thu 10/166:00 amPHX - IAD

1 stop6h 38mFrontier

Thu 10/236:15 amIAD - PHX

1 stop11h 50mFrontier

Deal found 9/10

$206

Mon 10/2010:55 pmPHX - BWI

1 stop8h 25mMultiple Airlines

Sat 10/255:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$192

Tue 10/211:16 pmPHX - BWI

1 stop12h 14mMultiple Airlines

Sat 10/255:35 amBWI - PHX

1 stop13h 22mMultiple Airlines

Deal found 9/9

$186

Tue 10/219:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Sat 10/253:05 pmBWI - PHX

1 stop6h 40mSouthwest

Deal found 9/9

$188

Tue 10/211:16 pmPHX - BWI

1 stop12h 14mMultiple Airlines

Sun 10/2611:14 amBWI - PHX

1 stop26h 59mMultiple Airlines

Deal found 9/9

$194

Wed 10/2210:59 pmPHX - BWI

1 stop8h 31mFrontier

Mon 10/276:29 pmBWI - PHX

1 stop6h 47mFrontier

Deal found 9/10

$172

Mon 10/277:59 pmPHX - DCA

1 stop23h 00mFrontier

Wed 10/292:00 pmDCA - PHX

1 stop10h 58mFrontier

Deal found 9/8

$205

One-way flights from Sky Harbor Intl to Washington, D.C.
Search for one-way flight options from Sky Harbor Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Wed 10/18:00 amPHX - BWI

1 stop20h 01mMultiple Airlines

Deal found 9/10

$82

Tue 10/219:50 pmPHX - BWI

Nonstop4h 15mSouthwest

Deal found 9/10

$87

Mon 11/106:00 amPHX - BWI

1 stop7h 35mFrontier

Deal found 9/10

$89

Mon 10/2010:55 pmPHX - BWI

1 stop8h 25mFrontier

Deal found 9/8

$90

Tue 11/115:16 pmPHX - BWI

1 stop24h 03mMultiple Airlines

Deal found 9/11

$91

Wed 10/81:45 pmPHX - BWI

1 stop6h 35mSouthwest

Deal found 9/11

$92

Wed 10/158:00 amPHX - BWI

1 stop17h 30mMultiple Airlines

Deal found 9/9

$93

Fri 11/75:16 pmPHX - BWI

1 stop24h 03mMultiple Airlines

Deal found 9/11

$94

Fri 10/1710:45 amPHX - BWI

1 stop16h 50mMultiple Airlines

Deal found 9/9

$95

Sun 9/282:47 pmPHX - BWI

1 stop18h 21mFrontier

Deal found 9/10

$96

Tue 11/1112:05 pmPHX - BWI

2 stops6h 55mSouthwest

Deal found 9/11

$97

Mon 10/209:59 pmPHX - DCA

1 stop21h 00mFrontier

Deal found 9/8

$121

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PhoenixBaltimore

PHX - BWI

PHXBWI

Phoenix Sky Harbor Intl

Tue 10/14

9:50 pm-5:05 am

Nonstop4h 15m

Baltimore/Washington

Tue 10/28

8:10 pm-10:05 pm

Nonstop4h 55m

$174

PhoenixBaltimore

PHX - BWI

PHXBWI

Phoenix Sky Harbor Intl

Thu 10/16

5:49 pm-6:35 am

1 stop9h 46m

Baltimore/Washington

Sun 10/19

6:21 pm-8:48 pm

1 stop29h 27m

$208

PhoenixWashington, D.C.

PHX - DCA

PHXDCA

Phoenix Sky Harbor Intl

Wed 12/3

2:50 pm-11:55 pm

2 stops7h 05m

Washington, D.C. Reagan-National

Sun 12/7

4:35 pm-9:00 pm

1 stop6h 25m

$208

PhoenixBaltimore

PHX - BWI

PHXBWI

Phoenix Sky Harbor Intl

Fri 9/26

12:37 pm-12:17 am

1 stop8h 40m

Baltimore/Washington

Sun 9/28

6:22 am-2:57 pm

1 stop11h 35m

$212

PhoenixWashington, D.C.

PHX - DCA

PHXDCA

Phoenix Sky Harbor Intl

Wed 12/3

2:50 pm-11:55 pm

2 stops7h 05m

Washington, D.C. Reagan-National

Sat 12/6

6:05 am-1:05 pm

2 stops9h 00m

$213

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 - DCA

PHXDCA

Phoenix Sky Harbor Intl

Wed 9/17

8:00 am-9:59 pm

1 stop10h 59m

Washington, D.C. Reagan-National

Mon 9/22

1:00 pm-11:32 am

1 stop25h 32m

$227

PhoenixBaltimore

PHX - BWI

PHXBWI

Phoenix Sky Harbor Intl

Thu 10/2

3:35 pm-12:35 am

1 stop6h 00m

Baltimore/Washington

Tue 10/7

6:15 am-8:20 am

Nonstop5h 05m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 59 results

...

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

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

Airports

PHX

PHX has short security lines; expect waits under 10 minutes. Check live wait times online to choose the shortest lane.

IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cheap way to get 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 88 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 Sky Harbor Intl Airport to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. (average of $292). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. 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 WAS?

A simple way to save on the total cost of your ticket is to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight at noon.

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

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Washington, D.C. 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 Sky Harbor Intl Airport to Washington, D.C.

The most flights from PHX to WAS are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

What’s the top layover airport for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Denver (DEN) – chosen by Cheapflights users on 60% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $140.

What’s the fastest layover option from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Flights via Kansas City (MCI) have the shortest average one-way travel time for 1-stop routes: 6h 10m.

Which airport typically offers the quickest layover for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Flights via Kansas City (MCI) offer the fastest connection on this route, with an average layover time of 0h 58m.

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Phoenix Sky Harbor Intl Airport to Washington, D.C. to help guide your decision. You can also see how each airline stacks up 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

American Airlines

7.2

Good

10,000 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 Sky Harbor Intl Airport to Washington, D.C.?
Southwest, Frontier, and United Airlines can get you from Phoenix Sky Harbor Intl Airport to Washington, D.C. in just under 4h 15m. Your travel time can differ by up to 4h 25m. Airlines will cover a distance of 1992 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. round-trip?
Currently priced at $147, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Washington, D.C. and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $236 and $256, respectively. Frontier is priced at 59% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. one-way?
For one-way options, check prices for Southwest. According to our data, you can fly for as low as $87. Users have also found prices from $90 and $128 on Frontier and United Airlines, respectively.
What are the most popular routes from Phoenix Sky Harbor Intl Airport to Washington, D.C.?
Most travelers choose Phoenix Sky Harbor Intl - Washington, D.C. Reagan-National, Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl or Phoenix Sky Harbor Intl - Baltimore/Washington when deciding on the best route from Phoenix Sky Harbor Intl Airport to Washington, D.C..
What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Washington, D.C.?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix Sky Harbor Intl Airport to Washington, D.C. on time: United Airlines (79%), Southwest (78%), Austrian Airlines (71%).
What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?
The cheapest flight price from Phoenix Sky Harbor Intl Airport to Washington, D.C. is $103. On average you can expect to pay $1,034. The most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Reagan-National), can usually be booked for $167.
Can I find deals for flights from Sky Harbor Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Sky Harbor Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sky Harbor Intl to Washington, D.C.?
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 Washington, D.C..
Can I find deals for business class flights from Sky Harbor Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Sky Harbor Intl to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. (average of $292). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. 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.

See more FAQs

Woodbridge

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Sky Harbor Intl to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$136	Average$260	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$143	Average$258	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$186	Average$401	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$348	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$236	Average$435	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$259	Average$376	FlexibilityNo cancel fee	On-time69%

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$82+ Cheap flights from Sky Harbor Intl (PHX) to Washington, D.C. (WAS)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Washington, D.C. are usually found in August or April, booked 88 days in advance, depart on a Friday or Thursday and return on a Tuesday

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

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Best time to book a flight from Sky Harbor Intl to Washington, D.C.

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Washington, D.C.. Price data was last updated on August 29, 2025.

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

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

Find hourly flight availability from Sky Harbor Intl to Washington, D.C.. 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 Sky Harbor Intl Airport to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Washington, D.C.. Price data was last updated on September 7, 2025.

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

What’s the top layover airport for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Share of 1-stop round-trip flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Average round-trip fare for 1-stop flights from Phoenix Sky Harbor Intl Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Washington, D.C.. 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 Sky Harbor Intl Airport to Washington, D.C.?

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

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

What are the most popular routes from Phoenix Sky Harbor Intl Airport to Washington, D.C.?

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

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

Can I find deals for flights from Sky Harbor Intl to Washington, D.C. that include hotel bookings?

How can I find direct flights from Sky Harbor Intl to Washington, D.C.?

Can I find deals for business class flights from Sky Harbor Intl to Washington, D.C.?

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

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Alternative routes for Sky Harbor Intl to Washington, D.C.

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Top 6 airlines flying from Sky Harbor Intl to Washington, D.C.

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