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Cheap flights from Philadelphia to Washington, D.C. from $95

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 11/27. 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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Multiple Airlines Logo
6:00 am - 8:20 pmPHL-IAD
14h 20m2 stops
Multiple Airlines Logo
8:40 am - 3:50 pmIAD-PHL
7h 10m1 stop
$159Multiple Airlines
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Tue, Nov 4 - Wed, Nov 5
Multiple Airlines Logo
6:00 am - 2:29 pmPHL-IAD
8h 29m1 stop
Multiple Airlines Logo
9:00 am - 10:36 pmIAD-PHL
13h 36m2 stops
$166Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
6:00 am - 2:29 pmPHL-IAD
8h 29m1 stop
Multiple Airlines Logo
9:00 am - 4:52 pmIAD-PHL
7h 52m1 stop
$170Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Frontier Logo
4:47 pm - 12:11 amPHL-IAD
31h 24m2 stops
Frontier Logo
10:57 am - 6:51 pmIAD-PHL
7h 54m1 stop
$175Frontier
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Sun, Nov 16 - Sun, Nov 23
Multiple Airlines Logo
6:00 am - 5:46 pmPHL-IAD
11h 46m1 stop
Multiple Airlines Logo
12:47 pm - 8:53 amIAD-PHL
20h 06m1 stop
$176Multiple Airlines
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Thu, Nov 27 - Mon, Dec 1
United Airlines Logo
10:34 am - 11:40 amPHL-IAD
1h 06mnonstop
United Airlines Logo
12:55 pm - 2:06 pmIAD-PHL
1h 11mnonstop
$179United Airlines
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Fri, Nov 14 - Sun, Nov 16
Frontier Logo
10:32 pm - 7:52 pmPHL-IAD
21h 20m1 stop
Frontier Logo
10:57 am - 6:51 pmIAD-PHL
7h 54m1 stop
$188Frontier
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Sun, Nov 16 - Sun, Nov 23
United Airlines Logo
10:22 am - 11:28 amPHL-IAD
1h 06mnonstop
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
$189United Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
American Airlines Logo
6:16 am - 1:12 pmPHL-IAD
6h 56m1 stop
American Airlines Logo
8:09 pm - 12:10 amIAD-PHL
4h 01m1 stop
$289American Airlines
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Thu, Nov 20 - Sun, Nov 23
American Airlines Logo
6:45 pm - 11:59 pmPHL-IAD
5h 14m1 stop
American Airlines Logo
7:59 am - 2:36 pmIAD-PHL
6h 37m1 stop
$290American Airlines
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Thu, Nov 13 - Mon, Nov 17

American Airlines flights from Philadelphia to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Philadelphia to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Nov 20
PHL6:16 amPhiladelphia
6h 56m
1 stop
IAD1:12 pmWashington, D.C. Dulles Intl
Nov 23
IAD8:09 pmWashington, D.C. Dulles Intl
4h 01m
1 stop
PHL12:10 amPhiladelphia
$289
Find similar
American Airlines
Nov 13
PHL6:45 pmPhiladelphia
5h 14m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Nov 17
IAD7:59 amWashington, D.C. Dulles Intl
6h 37m
1 stop
PHL2:36 pmPhiladelphia
$290
Find similar
American Airlines
Mar 11
PHL11:50 amPhiladelphia
4h 07m
1 stop
IAD3:57 pmWashington, D.C. Dulles Intl
Mar 14
IAD5:43 pmWashington, D.C. Dulles Intl
4h 19m
1 stop
PHL10:02 pmPhiladelphia
$319
Find similar

United Airlines flights from Philadelphia to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Philadelphia to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Nov 14
PHL10:34 amPhiladelphia
1h 06m
IAD11:40 amWashington, D.C. Dulles Intl
Nov 16
IAD12:55 pmWashington, D.C. Dulles Intl
1h 11m
PHL2:06 pmPhiladelphia
$179
Find similar
United Airlines
Nov 1
PHL10:22 amPhiladelphia
1h 06m
IAD11:28 amWashington, D.C. Dulles Intl
Nov 4
IAD8:30 amWashington, D.C. Dulles Intl
1h 16m
PHL9:46 amPhiladelphia
$189
Find similar
United Airlines
Mar 20
PHL8:05 pmPhiladelphia
1h 11m
IAD9:16 pmWashington, D.C. Dulles Intl
Mar 23
IAD8:15 amWashington, D.C. Dulles Intl
1h 15m
PHL9:30 amPhiladelphia
$194
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momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 21, 2025.
Use the filters below to find and compare flights from Philadelphia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Tue 11/4

6:00 am-8:20 pm

2 stops14h 20m

Washington, D.C. Dulles Intl

Wed 11/5

8:40 am-3:50 pm

1 stop7h 10m

$159

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Wed 12/3

6:00 am-2:29 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Wed 12/10

9:00 am-10:36 pm

2 stops13h 36m

$166

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Wed 12/3

6:00 am-2:29 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Wed 12/10

9:00 am-4:52 pm

1 stop7h 52m

$170

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sun 11/16

4:47 pm-12:11 am

2 stops31h 24m

Washington, D.C. Dulles Intl

Sun 11/23

10:57 am-6:51 pm

1 stop7h 54m

$175

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 11/27

6:00 am-5:46 pm

1 stop11h 46m

Washington, D.C. Dulles Intl

Mon 12/1

12:47 pm-8:53 am

1 stop20h 06m

$176

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Fri 11/14

10:34 am-11:40 am

Nonstop1h 06m

Washington, D.C. Dulles Intl

Sun 11/16

12:55 pm-2:06 pm

Nonstop1h 11m

$179

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sun 11/16

10:32 pm-7:52 pm

1 stop21h 20m

Washington, D.C. Dulles Intl

Sun 11/23

10:57 am-6:51 pm

1 stop7h 54m

$188

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sat 11/1

10:22 am-11:28 am

Nonstop1h 06m

Washington, D.C. Dulles Intl

Tue 11/4

8:30 am-9:46 am

Nonstop1h 16m

$189

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 11/20

6:16 am-1:12 pm

1 stop6h 56m

Washington, D.C. Dulles Intl

Sun 11/23

8:09 pm-12:10 am

1 stop4h 01m

$289

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 11/13

6:45 pm-11:59 pm

1 stop5h 14m

Washington, D.C. Dulles Intl

Mon 11/17

7:59 am-2:36 pm

1 stop6h 37m

$290

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. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $818. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Washington, D.C. Dulles Intl Airport for around $1,038.

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

Flying to Washington, D.C. Dulles Intl Airport from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $841 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,205 on average. Flights to Washington, D.C. Dulles Intl Airport from Philadelphia at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Philadelphia to Washington, D.C. Dulles Intl for the best Philadelphia - Washington, D.C. Dulles Intl flight prices

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

There are 4 cabin classes available to choose from on Philadelphia to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

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

When to book flights from Philadelphia to Washington, D.C. Dulles Intl Airport

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

Cheap Philadelphia to Washington, D.C. Dulles Intl Airport (PHL to IAD) flight deals and tips

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

Best Price Found

$268

Fastest flight time

1h 06m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun
The best one-way flight to Washington, D.C. Dulles Intl Airport from Philadelphia in the past 72 hours is $268. The best round-trip flight deal from Philadelphia to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $495.
The fastest flight from Philadelphia to Washington, D.C. Dulles Intl Airport takes 1h 06m
Direct flights go from Philadelphia to Washington, D.C. Dulles Intl Airport on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

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

    The straight-line distance from Philadelphia to Washington, D.C. Dulles Intl is 140.7 mi. 1h 06m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Washington, D.C. Dulles Intl Airport.

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

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek 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. Dulles Intl Airport?

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

Best airlines flying from Philadelphia to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Philadelphia to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights

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

    United Airlines flies from Philadelphia to Washington, D.C. Dulles Intl Airport around 15 times per week, with 8,991 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Philadelphia to Washington, D.C. Dulles Intl Airport in the last 72 hours was $189 (round-trip), much lower than the average airfare cost of $350 for United Airlines flights on this route.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Sterling

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Philadelphia with this policy.

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

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

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

Price alerts on flights to Washington, D.C. from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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