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Cheap flights from Washington, D.C. Dulles Intl Airport to Philadelphia from $68

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 1/12. 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
6:00 am - 4:28 pm
IAD
-
PHL
10h 28m1 stop
Frontier Logo
5:07 pm - 10:42 am
PHL
-
IAD
17h 35m1 stop
$131Frontier
Wed, Jan 14 - Wed, Jan 21
Frontier Logo
5:37 pm - 12:52 am
IAD
-
PHL
7h 15m1 stop
Frontier Logo
9:04 pm - 4:33 pm
PHL
-
IAD
19h 29m1 stop
$142Frontier
Thu, Jan 29 - Sat, Jan 31
Multiple Airlines Logo
6:00 am - 4:28 pm
IAD
-
PHL
10h 28m1 stop
Multiple Airlines Logo
6:00 am - 10:42 am
PHL
-
IAD
28h 42m2 stops
$147Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Frontier Logo
9:35 am - 7:57 pm
IAD
-
PHL
10h 22m1 stop
Frontier Logo
7:40 pm - 8:33 am
PHL
-
IAD
12h 53m1 stop
$170Frontier
Fri, Feb 6 - Sat, Feb 7
United Airlines Logo
10:15 pm - 11:30 pm
IAD
-
PHL
1h 15mnonstop
United Airlines Logo
6:10 am - 7:18 am
PHL
-
IAD
1h 08mnonstop
$179United Airlines
Mon, Jun 1 - Mon, Jun 8
Frontier Logo
5:37 pm - 12:52 am
IAD
-
PHL
7h 15m1 stop
Frontier Logo
6:50 pm - 8:33 am
PHL
-
IAD
13h 43m2 stops
$187Frontier
Thu, Jan 29 - Sat, Jan 31
United Airlines Logo
10:20 pm - 11:30 pm
IAD
-
PHL
1h 10mnonstop
United Airlines Logo
7:45 pm - 9:03 pm
PHL
-
IAD
1h 18mnonstop
$194United Airlines
Sat, Jan 3 - Sat, Jan 10
United Airlines Logo
10:20 pm - 11:30 pm
IAD
-
PHL
1h 10mnonstop
United Airlines Logo
10:39 am - 11:55 am
PHL
-
IAD
1h 16mnonstop
$209United Airlines
Sat, Dec 27 - Wed, Dec 31
Multiple Airlines Logo
10:15 pm - 11:56 pm
IAD
-
PHL
25h 41m1 stop
Multiple Airlines Logo
8:43 pm - 7:40 am
PHL
-
IAD
10h 57m1 stop
$222Multiple Airlines
Sat, Jan 3 - Sat, Jan 10
United Airlines Logo
10:20 pm - 11:30 pm
IAD
-
PHL
1h 10mnonstop
United Airlines Logo
10:39 am - 11:55 am
PHL
-
IAD
1h 16mnonstop
$224United Airlines
Fri, Dec 26 - Mon, Dec 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
Jun 1
IAD10:15 pmWashington, D.C. Dulles Intl
1h 15m
PHL11:30 pmPhiladelphia
Jun 8
PHL6:10 amPhiladelphia
1h 08m
IAD7:18 amWashington, D.C. Dulles Intl
$179
Find similar
United Airlines
Jan 3
IAD10:20 pmWashington, D.C. Dulles Intl
1h 10m
PHL11:30 pmPhiladelphia
Jan 10
PHL7:45 pmPhiladelphia
1h 18m
IAD9:03 pmWashington, D.C. Dulles Intl
$194
Find similar
United Airlines
Dec 27
IAD10:20 pmWashington, D.C. Dulles Intl
1h 10m
PHL11:30 pmPhiladelphia
Dec 31
PHL10:39 amPhiladelphia
1h 16m
IAD11:55 amWashington, D.C. Dulles Intl
$209
Find similar

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Philadelphia flight tickets
American Airlines
Jan 29
IAD11:34 amWashington, D.C. Dulles Intl
4h 17m
1 stop
PHL3:51 pmPhiladelphia
Jan 31
PHL7:52 amPhiladelphia
4h 44m
1 stop
IAD12:36 pmWashington, D.C. Dulles Intl
$259
Find similar
American Airlines
Dec 18
IAD6:35 amWashington, D.C. Dulles Intl
6h 06m
1 stop
PHL12:41 pmPhiladelphia
Dec 22
PHL7:15 pmPhiladelphia
4h 49m
1 stop
IAD12:04 amWashington, D.C. Dulles Intl
$309
Find similar
American Airlines
Jan 8
IAD11:34 amWashington, D.C. Dulles Intl
4h 17m
1 stop
PHL3:51 pmPhiladelphia
Jan 12
PHL6:30 pmPhiladelphia
4h 42m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
$319
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 December 15, 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

Wed 1/14

6:00 am-4:28 pm

1 stop10h 28m

Philadelphia

Wed 1/21

5:07 pm-10:42 am

1 stop17h 35m

$131

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 1/29

5:37 pm-12:52 am

1 stop7h 15m

Philadelphia

Sat 1/31

9:04 pm-4:33 pm

1 stop19h 29m

$142

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-4:28 pm

1 stop10h 28m

Philadelphia

Wed 1/21

6:00 am-10:42 am

2 stops28h 42m

$147

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 2/6

9:35 am-7:57 pm

1 stop10h 22m

Philadelphia

Sat 2/7

7:40 pm-8:33 am

1 stop12h 53m

$170

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Mon 6/1

10:15 pm-11:30 pm

Nonstop1h 15m

Philadelphia

Mon 6/8

6:10 am-7:18 am

Nonstop1h 08m

$179

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 1/29

5:37 pm-12:52 am

1 stop7h 15m

Philadelphia

Sat 1/31

6:50 pm-8:33 am

2 stops13h 43m

$187

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Sat 1/3

10:20 pm-11:30 pm

Nonstop1h 10m

Philadelphia

Sat 1/10

7:45 pm-9:03 pm

Nonstop1h 18m

$194

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Sat 12/27

10:20 pm-11:30 pm

Nonstop1h 10m

Philadelphia

Wed 12/31

10:39 am-11:55 am

Nonstop1h 16m

$209

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Sat 1/3

10:15 pm-11:56 pm

1 stop25h 41m

Philadelphia

Sat 1/10

8:43 pm-7:40 am

1 stop10h 57m

$222

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 12/26

10:20 pm-11:30 pm

Nonstop1h 10m

Philadelphia

Mon 12/29

10:39 am-11:55 am

Nonstop1h 16m

$224

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 June. Flight prices, which tend to average around $179, 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 $184.

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 $528. 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 $776.

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 $517. 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 $828.

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 are 2 cabin classes 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?

You could potentially save up to 81% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Philadelphia flight.

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

$358

Fastest flight time

1h 09m

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 $358. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Philadelphia found on momondo in the last 72 hours is $209.
The fastest flight from Washington, D.C. Dulles Intl Airport to Philadelphia takes 1h 09m
Direct flights go from Washington, D.C. Dulles Intl Airport to Philadelphia every day.
There is 1 airport in Philadelphia. From Washington, D.C. Dulles Intl Airport there are direct flights to 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 09m 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 $189Free CancellationRating
7.4
9,092 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 16 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. Dulles Intl Airport to Philadelphia starts from $189 round-trip, up to an average price of $437. 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
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
Pottstown
Elkton
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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