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Cheap flights from Washington, D.C. Dulles Intl Airport to Philadelphia from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Philadelphia departing on 11/13. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:58 pm - 10:36 pmIAD-PHL
24h 38m1 stop
Frontier Logo
10:00 pm - 8:48 amPHL-IAD
10h 48m1 stop
$134Frontier
Find Deal
Mon, Jan 5 - Fri, Jan 9
Frontier Logo
6:41 pm - 12:30 amIAD-PHL
5h 49m1 stop
Frontier Logo
6:32 pm - 11:10 pmPHL-IAD
28h 38m1 stop
$147Frontier
Find Deal
Thu, Nov 27 - Wed, Dec 3
Frontier Logo
12:47 pm - 12:51 amIAD-PHL
12h 04m1 stop
Frontier Logo
6:32 pm - 11:10 pmPHL-IAD
28h 38m1 stop
$152Frontier
Find Deal
Mon, Nov 24 - Wed, Dec 3
Frontier Logo
9:58 pm - 4:24 pmIAD-PHL
18h 26m2 stops
Frontier Logo
10:00 pm - 8:48 amPHL-IAD
10h 48m1 stop
$154Frontier
Find Deal
Mon, Jan 5 - Fri, Jan 9
Frontier Logo
6:41 pm - 12:30 amIAD-PHL
5h 49m1 stop
Frontier Logo
10:00 pm - 8:24 pmPHL-IAD
22h 24m1 stop
$158Frontier
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
8:36 pm - 7:30 amIAD-PHL
10h 54m1 stop
Multiple Airlines Logo
6:00 am - 8:20 pmPHL-IAD
14h 20m2 stops
$165Multiple Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
United Airlines Logo
8:00 pm - 9:07 pmPHL-IAD
1h 07mnonstop
$179United Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
United Airlines Logo
8:00 pm - 9:07 pmPHL-IAD
1h 07mnonstop
$184United Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
United Airlines Logo
12:55 pm - 2:06 pmIAD-PHL
1h 11mnonstop
United Airlines Logo
3:00 pm - 4:08 pmPHL-IAD
1h 08mnonstop
$189United Airlines
Find Deal
Mon, Nov 10 - Sat, Nov 15
United Airlines Logo
5:55 pm - 7:05 pmIAD-PHL
1h 10mnonstop
United Airlines Logo
8:00 pm - 9:07 pmPHL-IAD
1h 07mnonstop
$192United Airlines
Find Deal
Wed, Nov 26 - Sat, Nov 29

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Philadelphia flight tickets
United Airlines
Nov 20
IAD8:30 amWashington, D.C. Dulles Intl
1h 16m
PHL9:46 amPhiladelphia
Nov 23
PHL8:00 pmPhiladelphia
1h 07m
IAD9:07 pmWashington, D.C. Dulles Intl
$179
Find similar
United Airlines
Nov 14
IAD8:30 amWashington, D.C. Dulles Intl
1h 16m
PHL9:46 amPhiladelphia
Nov 16
PHL8:00 pmPhiladelphia
1h 07m
IAD9:07 pmWashington, D.C. Dulles Intl
$184
Find similar
United Airlines
Nov 10
IAD12:55 pmWashington, D.C. Dulles Intl
1h 11m
PHL2:06 pmPhiladelphia
Nov 15
PHL3:00 pmPhiladelphia
1h 08m
IAD4:08 pmWashington, D.C. Dulles Intl
$189
Find similar

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

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Philadelphia flight tickets
Frontier
Jan 5
IAD9:58 pmWashington, D.C. Dulles Intl
24h 38m
1 stop
PHL10:36 pmPhiladelphia
Jan 9
PHL10:00 pmPhiladelphia
10h 48m
1 stop
IAD8:48 amWashington, D.C. Dulles Intl
$134
Find similar
Frontier
Nov 27
IAD6:41 pmWashington, D.C. Dulles Intl
5h 49m
1 stop
PHL12:30 amPhiladelphia
Dec 3
PHL6:32 pmPhiladelphia
28h 38m
1 stop
IAD11:10 pmWashington, D.C. Dulles Intl
$147
Find similar
Frontier
Nov 24
IAD12:47 pmWashington, D.C. Dulles Intl
12h 04m
1 stop
PHL12:51 amPhiladelphia
Dec 3
PHL6:32 pmPhiladelphia
28h 38m
1 stop
IAD11:10 pmWashington, D.C. Dulles Intl
$152
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Philadelphia 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 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Mon 1/5

9:58 pm-10:36 pm

1 stop24h 38m

Philadelphia

Fri 1/9

10:00 pm-8:48 am

1 stop10h 48m

$134

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 11/27

6:41 pm-12:30 am

1 stop5h 49m

Philadelphia

Wed 12/3

6:32 pm-11:10 pm

1 stop28h 38m

$147

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Mon 11/24

12:47 pm-12:51 am

1 stop12h 04m

Philadelphia

Wed 12/3

6:32 pm-11:10 pm

1 stop28h 38m

$152

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Mon 1/5

9:58 pm-4:24 pm

2 stops18h 26m

Philadelphia

Fri 1/9

10:00 pm-8:48 am

1 stop10h 48m

$154

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 11/27

6:41 pm-12:30 am

1 stop5h 49m

Philadelphia

Thu 12/4

10:00 pm-8:24 pm

1 stop22h 24m

$158

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 11/13

8:36 pm-7:30 am

1 stop10h 54m

Philadelphia

Tue 11/18

6:00 am-8:20 pm

2 stops14h 20m

$165

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 11/20

8:30 am-9:46 am

Nonstop1h 16m

Philadelphia

Sun 11/23

8:00 pm-9:07 pm

Nonstop1h 07m

$179

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 11/14

8:30 am-9:46 am

Nonstop1h 16m

Philadelphia

Sun 11/16

8:00 pm-9:07 pm

Nonstop1h 07m

$184

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Mon 11/10

12:55 pm-2:06 pm

Nonstop1h 11m

Philadelphia

Sat 11/15

3:00 pm-4:08 pm

Nonstop1h 08m

$189

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Wed 11/26

5:55 pm-7:05 pm

Nonstop1h 10m

Philadelphia

Sat 11/29

8:00 pm-9:07 pm

Nonstop1h 07m

$192

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 Philadelphia from

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

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 month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Washington, D.C. Dulles Intl Airport is in March. Flight prices, which tend to average around $199, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Philadelphia, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $246.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $546. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $792.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is at noon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Philadelphia at noon for as low as $521. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $856.

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

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

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

There is only 1 cabin class available to choose from on Washington, D.C. Dulles Intl to Philadelphia 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 Washington, D.C. Dulles Intl Airport to Philadelphia flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Philadelphia.

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

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

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

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

Best Price Found

$203

Fastest flight time

1h 08m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Washington, D.C. Dulles Intl Airport in the past 72 hours is $203. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Philadelphia found on momondo in the last 72 hours is $532.
The fastest flight from Washington, D.C. Dulles Intl Airport to Philadelphia takes 1h 08m
Direct flights go from Washington, D.C. Dulles Intl Airport to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

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

    The distance between Washington, D.C. Dulles Intl and Philadelphia is about 140.7 mi. Typically, this will take 1h 10m by plane in normal conditions.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Philadelphia Airport are refreshed on a daily basis.

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

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

    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 Washington, D.C. Dulles Intl Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $179Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights

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

    United Airlines is one of the most popular airlines flying from Washington, D.C. Dulles Intl Airport to Philadelphia, operating 13 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. Dulles Intl Airport to Philadelphia starts from $179 round-trip, up to an average price of $401. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
Somers Point

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Philadelphia. momondo saves you time and could save you money on your trip.

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

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

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

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

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

Of course. momondo tracks the price of Washington, D.C. to Philadelphia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Philadelphia trip

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