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Cheap flights from Philadelphia to Washington, D.C. from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Washington, D.C. departing on 10/15. 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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0 bags

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Find the cheapest flights from Philadelphia to Washington, D.C.

Cheap round-trip flights

Frontier Logo
10:22 am - 5:20 pmPHL-BWI
6h 58m1 stop
Frontier Logo
11:19 am - 8:04 pmBWI-PHL
8h 45m1 stop
$153Frontier
Find Deal
ג', אוק' 14 - ג', אוק' 21
Frontier Logo
10:22 am - 7:46 pmPHL-IAD
9h 24m1 stop
Frontier Logo
9:00 am - 4:35 pmIAD-PHL
7h 35m1 stop
$153Frontier
Find Deal
ג', אוק' 14 - ג', אוק' 21
Spirit Airlines Logo
5:33 am - 2:48 pmPHL-BWI
9h 15m1 stop
Spirit Airlines Logo
5:01 pm - 4:46 pmBWI-PHL
23h 45m1 stop
$175Spirit Airlines
Find Deal
ד', אוק' 8 - ו', אוק' 10
American Airlines Logo
6:45 pm - 7:59 pmPHL-DCA
1h 14mnonstop
American Airlines Logo
12:22 pm - 1:28 pmDCA-PHL
1h 06mnonstop
$179American Airlines
Find Deal
ה', אוק' 9 - א', אוק' 12
United Airlines Logo
10:32 am - 11:46 amPHL-IAD
1h 14mnonstop
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
$179United Airlines
Find Deal
ה', אוק' 9 - א', אוק' 12
American Airlines Logo
6:45 pm - 7:59 pmPHL-DCA
1h 14mnonstop
American Airlines Logo
12:54 pm - 1:59 pmDCA-PHL
1h 05mnonstop
$180American Airlines
Find Deal
ג', אוק' 14 - ש', אוק' 18
United Airlines Logo
7:58 pm - 9:05 pmPHL-IAD
1h 07mnonstop
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
$189United Airlines
Find Deal
ג', ספט' 30 - ש', אוק' 4
Spirit Airlines Logo
12:00 pm - 11:01 amPHL-BWI
23h 01m1 stop
Spirit Airlines Logo
4:00 pm - 11:47 pmBWI-PHL
7h 47m1 stop
$190Spirit Airlines
Find Deal
ג', ספט' 30 - ש', אוק' 4
Multiple Airlines Logo
5:33 am - 5:16 pmPHL-BWI
11h 43m1 stop
Multiple Airlines Logo
8:30 pm - 7:30 amBWI-PHL
11h 00m1 stop
$191Multiple Airlines
Find Deal
ה', אוק' 16 - ה', אוק' 23
Multiple Airlines Logo
9:55 pm - 9:34 amPHL-BWI
11h 39m1 stop
Multiple Airlines Logo
5:01 pm - 12:25 amBWI-PHL
7h 24m1 stop
$201Multiple Airlines
Find Deal
ו', אוק' 17 - ו', אוק' 24

Frontier flights from Philadelphia to Washington, D.C.

Our best Frontier deals on Philadelphia to Washington, D.C. flight tickets
Frontier
Oct 14
PHL10:22 amPhiladelphia
9h 24m
1 stop
IAD7:46 pmWashington, D.C. Dulles Intl
Oct 21
IAD9:00 amWashington, D.C. Dulles Intl
7h 35m
1 stop
PHL4:35 pmPhiladelphia
$153
Find similar
Frontier
Oct 17
PHL11:50 amPhiladelphia
7h 29m
1 stop
IAD7:19 pmWashington, D.C. Dulles Intl
Oct 19
IAD8:02 pmWashington, D.C. Dulles Intl
11h 28m
1 stop
PHL7:30 amPhiladelphia
$154
Find similar
Frontier
Oct 17
PHL5:30 amPhiladelphia
11h 54m
1 stop
BWI5:24 pmBaltimore/Washington
Oct 19
BWI6:52 pmBaltimore/Washington
12h 38m
1 stop
PHL7:30 amPhiladelphia
$155
Find similar

United Airlines flights from Philadelphia to Washington, D.C.

Our best United Airlines deals on Philadelphia to Washington, D.C. flight tickets
United Airlines
Oct 9
PHL10:32 amPhiladelphia
1h 14m
IAD11:46 amWashington, D.C. Dulles Intl
Oct 12
IAD8:30 amWashington, D.C. Dulles Intl
1h 16m
PHL9:46 amPhiladelphia
$179
Find similar
United Airlines
Sep 30
PHL7:58 pmPhiladelphia
1h 07m
IAD9:05 pmWashington, D.C. Dulles Intl
Oct 4
IAD8:30 amWashington, D.C. Dulles Intl
1h 16m
PHL9:46 amPhiladelphia
$189
Find similar
United Airlines
Sep 23
PHL10:30 amPhiladelphia
1h 14m
IAD11:44 amWashington, D.C. Dulles Intl
Sep 30
IAD12:50 pmWashington, D.C. Dulles Intl
1h 14m
PHL2:04 pmPhiladelphia
$199
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Washington, D.C. 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 ספטמבר 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

ג' 10/14

10:22 am-5:20 pm

1 stop6h 58m

Baltimore/Washington

ג' 10/21

11:19 am-8:04 pm

1 stop8h 45m

$153

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

ג' 10/14

10:22 am-7:46 pm

1 stop9h 24m

Washington, D.C. Dulles Intl

ג' 10/21

9:00 am-4:35 pm

1 stop7h 35m

$153

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

ד' 10/8

5:33 am-2:48 pm

1 stop9h 15m

Baltimore/Washington

ו' 10/10

5:01 pm-4:46 pm

1 stop23h 45m

$175

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

ה' 10/9

6:45 pm-7:59 pm

Nonstop1h 14m

Washington, D.C. Reagan-National

א' 10/12

12:22 pm-1:28 pm

Nonstop1h 06m

$179

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

ה' 10/9

10:32 am-11:46 am

Nonstop1h 14m

Washington, D.C. Dulles Intl

א' 10/12

8:30 am-9:46 am

Nonstop1h 16m

$179

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

ג' 10/14

6:45 pm-7:59 pm

Nonstop1h 14m

Washington, D.C. Reagan-National

ש' 10/18

12:54 pm-1:59 pm

Nonstop1h 05m

$180

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

ג' 9/30

7:58 pm-9:05 pm

Nonstop1h 07m

Washington, D.C. Dulles Intl

ש' 10/4

8:30 am-9:46 am

Nonstop1h 16m

$189

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

ג' 9/30

12:00 pm-11:01 am

1 stop23h 01m

Baltimore/Washington

ש' 10/4

4:00 pm-11:47 pm

1 stop7h 47m

$190

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

ה' 10/16

5:33 am-5:16 pm

1 stop11h 43m

Baltimore/Washington

ה' 10/23

8:30 pm-7:30 am

1 stop11h 00m

$191

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

ו' 10/17

9:55 pm-9:34 am

1 stop11h 39m

Baltimore/Washington

ו' 10/24

5:01 pm-12:25 am

1 stop7h 24m

$201

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Philadelphia to Washington, D.C.

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 day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Philadelphia is on a Friday. momondo users have found tickets for Friday departures for as low as $615. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Washington, D.C. for around $930.

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

In the morning is the cheapest time of day to fly from Philadelphia to Washington, D.C. when you can find flight prices for as low as $636. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $1,196. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Philadelphia to Washington, D.C. flight route?

Fly from Philadelphia to Washington, D.C. Reagan-National for the best Philadelphia - Washington, D.C. flight prices

What cabin class options are available on Philadelphia to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Philadelphia to Washington, D.C. 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 Philadelphia to Washington, D.C. flights?

You could potentially save up to 62% on your flight if you consider stops on a Philadelphia to Washington, D.C. flight.

How have Philadelphia to Washington, D.C. flight prices changed over time?

As of September 2025, prices for Philadelphia to Washington, D.C. flights are approximately 71% cheaper when compared to flights at the same time last year.

When to book flights from Philadelphia to Washington, D.C.

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

Cheap Philadelphia to Washington, D.C. (PHL to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Washington, D.C.

Best Price Found

$154

Fastest flight time

0h 59m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Philadelphia in the past 72 hours is $154. The best round-trip flight deal from Philadelphia to Washington, D.C. found on momondo in the last 72 hours is $365.
The fastest flight from Philadelphia to Washington, D.C. takes 0h 59m
Direct flights go from Philadelphia to Washington, D.C. every day.
There are 2 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • How far is Philadelphia to Washington, D.C. by plane?

    Philadelphia and Washington, D.C. are 123.7 mi apart from one another. Typically, this will take 0h 59m by plane in normal conditions.

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

    Prices for flights from Philadelphia Airport to Washington, D.C. refresh daily.

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

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

    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 Philadelphia Airport to Washington, D.C..

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

    The necessary travel and health documents for your Washington, D.C. 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 Philadelphia to Washington, D.C.?

  • What is the most popular airline from Philadelphia to Washington, D.C.?

Best airlines flying from Philadelphia to Washington, D.C.

Compare and see reviews for airlines that fly from Philadelphia to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $159Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • United Airlines Flights From Philadelphia to Washington, D.C.

    United Airlines is one of the most popular airlines flying from Philadelphia to Washington, D.C., operating 14 flights/week on average for this route. A good United Airlines flight deal for Philadelphia to Washington, D.C. starts from $189 round-trip, up to an average price of $344. Our users have rated United Airlines at 7.4/10.

  • American Airlines Flights From Philadelphia to Washington, D.C.

    Another popular option for Philadelphia to Washington, D.C. flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from Philadelphia to Washington, D.C. around 20 times per week, with deals starting from $159 round-trip and rising to an average price of around $221.

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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

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

It is quick and easy to find Philadelphia to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

All flight searches from Philadelphia to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Yes momondo offers price alerts on flights to Washington, D.C. from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport