Cheap flights from Washington, D.C. to Philadelphia from $78

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. to Philadelphia departing on 12/3. 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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Frontier Logo
8:40 am - 3:50 pmIAD-PHL
7h 10m1 stop
Frontier Logo
9:30 pm - 4:34 pmPHL-IAD
19h 04m1 stop
$149Frontier
Find Deal
Tue, Nov 11 - Wed, Nov 12
Frontier Logo
10:00 am - 3:50 pmBWI-PHL
5h 50m1 stop
Frontier Logo
9:30 pm - 8:18 amPHL-BWI
10h 48m1 stop
$167Frontier
Find Deal
Tue, Nov 11 - Wed, Nov 12
Multiple Airlines Logo
5:37 pm - 10:38 amBWI-PHL
17h 01m1 stop
Multiple Airlines Logo
9:53 pm - 10:20 amPHL-BWI
12h 27m1 stop
$169Multiple Airlines
Find Deal
Sun, Oct 26 - Mon, Oct 27
Multiple Airlines Logo
6:38 pm - 9:20 amBWI-PHL
14h 42m1 stop
Multiple Airlines Logo
10:22 am - 8:08 amPHL-BWI
21h 46m1 stop
$174Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
American Airlines Logo
1:44 pm - 2:53 pmDCA-PHL
1h 09mnonstop
American Airlines Logo
7:50 pm - 8:58 pmPHL-DCA
1h 08mnonstop
$179American Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
American Airlines Logo
8:19 am - 9:24 amDCA-PHL
1h 05mnonstop
American Airlines Logo
3:00 pm - 4:04 pmPHL-DCA
1h 04mnonstop
$180American Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
United Airlines Logo
12:55 pm - 2:06 pmIAD-PHL
1h 11mnonstop
United Airlines Logo
10:22 am - 11:28 amPHL-IAD
1h 06mnonstop
$189United Airlines
Find Deal
Tue, Oct 28 - Sat, Nov 1
Spirit Airlines Logo
10:48 am - 12:32 amBWI-PHL
13h 44m1 stop
Spirit Airlines Logo
7:00 am - 8:32 pmPHL-BWI
13h 32m1 stop
$202Spirit Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
Spirit Airlines Logo
6:20 am - 2:15 pmBWI-PHL
7h 55m1 stop
Spirit Airlines Logo
10:10 pm - 11:07 pmPHL-BWI
24h 57m2 stops
$204Spirit Airlines
Find Deal
Wed, Nov 12 - Thu, Nov 13
United Airlines Logo
5:55 pm - 7:05 pmIAD-PHL
1h 10mnonstop
United Airlines Logo
8:00 pm - 9:07 pmPHL-IAD
1h 07mnonstop
$239United Airlines
Find Deal
Fri, Nov 7 - Fri, Nov 14

Frontier flights from Washington, D.C. to Philadelphia

Our best Frontier deals on Washington, D.C. to Philadelphia flight tickets
Frontier
Nov 11
IAD8:40 amWashington, D.C. Dulles Intl
7h 10m
1 stop
PHL3:50 pmPhiladelphia
Nov 12
PHL9:30 pmPhiladelphia
19h 04m
1 stop
IAD4:34 pmWashington, D.C. Dulles Intl
Frontier
Nov 11
BWI10:00 amBaltimore/Washington
5h 50m
1 stop
PHL3:50 pmPhiladelphia
Nov 12
PHL9:30 pmPhiladelphia
10h 48m
1 stop
BWI8:18 amBaltimore/Washington
Frontier
Oct 25
IAD4:22 pmWashington, D.C. Dulles Intl
7h 35m
1 stop
PHL11:57 pmPhiladelphia
Oct 28
PHL9:30 pmPhiladelphia
22h 50m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl

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

Our best American Airlines deals on Washington, D.C. to Philadelphia flight tickets
American Airlines
Nov 6
DCA1:44 pmWashington, D.C. Reagan-National
1h 09m
PHL2:53 pmPhiladelphia
Nov 10
PHL7:50 pmPhiladelphia
1h 08m
DCA8:58 pmWashington, D.C. Reagan-National
American Airlines
Nov 27
DCA8:19 amWashington, D.C. Reagan-National
1h 05m
PHL9:24 amPhiladelphia
Dec 4
PHL3:00 pmPhiladelphia
1h 04m
DCA4:04 pmWashington, D.C. Reagan-National
American Airlines
Nov 1
DCA8:00 amWashington, D.C. Reagan-National
1h 08m
PHL9:08 amPhiladelphia
Nov 2
PHL11:50 amPhiladelphia
1h 10m
DCA1:00 pmWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. 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

Tue 11/11

8:40 am-3:50 pm

1 stop7h 10m

Philadelphia

Wed 11/12

9:30 pm-4:34 pm

1 stop19h 04m

$149

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 11/11

10:00 am-3:50 pm

1 stop5h 50m

Philadelphia

Wed 11/12

9:30 pm-8:18 am

1 stop10h 48m

$167

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sun 10/26

5:37 pm-10:38 am

1 stop17h 01m

Philadelphia

Mon 10/27

9:53 pm-10:20 am

1 stop12h 27m

$169

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Thu 11/27

6:38 pm-9:20 am

1 stop14h 42m

Philadelphia

Thu 12/4

10:22 am-8:08 am

1 stop21h 46m

$174

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 11/6

1:44 pm-2:53 pm

Nonstop1h 09m

Philadelphia

Mon 11/10

7:50 pm-8:58 pm

Nonstop1h 08m

$179

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 11/27

8:19 am-9:24 am

Nonstop1h 05m

Philadelphia

Thu 12/4

3:00 pm-4:04 pm

Nonstop1h 04m

$180

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Tue 10/28

12:55 pm-2:06 pm

Nonstop1h 11m

Philadelphia

Sat 11/1

10:22 am-11:28 am

Nonstop1h 06m

$189

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 2/28

10:48 am-12:32 am

1 stop13h 44m

Philadelphia

Tue 3/3

7:00 am-8:32 pm

1 stop13h 32m

$202

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 11/12

6:20 am-2:15 pm

1 stop7h 55m

Philadelphia

Thu 11/13

10:10 pm-11:07 pm

2 stops24h 57m

$204

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 11/7

5:55 pm-7:05 pm

Nonstop1h 10m

Philadelphia

Fri 11/14

8:00 pm-9:07 pm

Nonstop1h 07m

$239

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. 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 typical price of a round-trip flight between Washington, D.C. and Philadelphia?

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

The cheapest day to depart from Washington, D.C. to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $538. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $801.

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. to Philadelphia at noon for as low as $522. 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 $846.

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

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

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

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

You could potentially save up to 1% on your flight if you consider stops on a Washington, D.C. to Philadelphia flight.

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

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Philadelphia (WAS to PHL) flight deals and tips

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

Best Price Found

$203

Fastest flight time

0h 52m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Washington, D.C. in the past 72 hours is $203. The best round-trip flight deal from Washington, D.C. to Philadelphia found on momondo in the last 72 hours is $356.
The fastest flight from Washington, D.C. to Philadelphia takes 0h 52m
Direct flights go from Washington, D.C. to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)
  • Is flying the fastest way to get from Washington, D.C. to Philadelphia?

    At 1h 00m, choosing to opt for a flight from Washington, D.C. to Philadelphia for this trip versus opting for a train from Washington, D.C. to Philadelphia or a bus from Washington, D.C. to Philadelphia can save you time on travel.

  • Is flying the cheapest way to get from Washington, D.C. to Philadelphia?

    A train from Washington, D.C. to Philadelphia is currently going to be the least expensive option currently available. You can also find deals for a flight from Washington, D.C. to Philadelphia starting at $149, or consider a bus from Washington, D.C. to Philadelphia starting at $38. Both of these alternative options are worth considering when looking to reach your destination.

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

    There are 123.7 mi between Washington, D.C. and Philadelphia. A reasonable flight in good conditions will take 1h 00m.

  • What is the carbon footprint of flying from Washington, D.C. to Philadelphia?

    The carbon footprint of a Washington, D.C. to Philadelphia flight is around 126lb, which may vary slightly based on airline and stops. There is a CO2 sorter on our flight search results to help you select the lowest possible footprint. By train, you could lower your emissions for this trip by about 74%. If you can take the time, the carbon footprint of a bus for this journey would be 21lb, some 83% less than flying.

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

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

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

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

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

    The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $179Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $179Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights
  • United Airlines Flights From Washington, D.C. to Philadelphia

    United Airlines flies from Washington, D.C. to Philadelphia around 20 times per week, with 8,976 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. to Philadelphia in the last 72 hours was $179 (round-trip), much lower than the average airfare cost of $391 for United Airlines flights on this route.

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

    American Airlines (7.2/10 from 11,042 reviews) operates around 20 flights from Washington, D.C. to Philadelphia in any given week. The average American Airlines airfare for this route is around $349, with deals from around $179 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. to Philadelphia flight searches in the last 72 hours.

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
Reading
Cherry Hill
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?

It is quick and easy to find Washington, D.C. to Philadelphia 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 Philadelphia that suits you.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Philadelphia from Washington, D.C..

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

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Washington, D.C. and alert you when they change.

Choose the best way to get from Washington, D.C. to Philadelphia

Buses

3h 05m
$21 one-way$38 round-trip
Nonstop · from $38

Distance to downtown

4WH1.3 mi
ZFV1.5 mi

Trains

1h 37m
$11 one-way$28 round-trip
Nonstop · from $281 stop · from $171

Distance to downtown

ZFV1.5 mi

Flights

1h 00m
$78 one-way$149 round-trip
Nonstop · from $1791 stop · from $100

Distance to downtown

PHL7.0 mi

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1 adult
Thu 11/13
Thu 11/20

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