How long is the flight from Washington, D.C. to Philadelphia?

For as low as $179, Frontier can have you in Philadelphia from Washington, D.C. in 1h 10m. The distance between Washington, D.C. and Philadelphia is about 134 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Washington, D.C. to Philadelphia round-trip?

Cheapflights users have booked flights from Washington, D.C. to Philadelphia round-trip from $179. Another airline that can offer you cheap pricing is American Airlines. These flights start at 43% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. to Philadelphia one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from Spirit Airlines and JetBlue, as they are both options that can get you from Washington, D.C. to Philadelphia for a low price.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What are the most popular routes from Washington, D.C. to Philadelphia?

While some choose either Washington, D.C. Reagan-National - Philadelphia or Baltimore/Washington - Philadelphia, Washington, D.C. Dulles Intl - Philadelphia is the most popular route from Washington, D.C. to Philadelphia.

What are the cheapest flights from Washington, D.C. to Philadelphia?

On average you can expect to pay $502 for a flight from Washington, D.C. to Philadelphia. The cheapest flight overall is $239 while the most popular route, (Washington, D.C. Dulles Intl - Philadelphia) is currently priced at $179.

What are the most reliable airlines from Washington, D.C. to Philadelphia?

No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Philadelphia consider choosing Air Canada (89%), Mesa Airlines (83%) or ANA (77%) as they are the most reliable in getting you off to your destination on time.

What is the cheapest day to fly round-trip from Washington, D.C. to Philadelphia?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 37% when planning your travel around this day of the week.

What is the cheapest month to fly from Washington, D.C. to Philadelphia?

Our data shows that April tends to be the cheapest month to fly to Philadelphia from Washington, D.C.. Users have commonly found prices around $318 for the month, but tickets can be as low as $179. Due to multiple factors, prepare for potentially higher prices in June.

What airport do you fly into for flights to Philadelphia from Washington, D.C.?

Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Philadelphia. 2 airlines have flights to Philadelphia from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Philadelphia should not be difficult; the airport handles an average of 15 inbound flights from Washington, D.C. per day.

Can I find deals for flights from Washington, D.C. to Philadelphia that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Philadelphia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Philadelphia.

Can I find deals for business class flights from Washington, D.C. to Philadelphia?

Yes. Cheapflights offers flight deals from Washington, D.C. to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$81+ Cheap Flights from Washington, D.C. to Philadelphia

Q: How much does it cost to fly round-trip from Washington, D.C. to Philadelphia?

Airfare is below average for this route at the moment. Washington, D.C. to Philadelphia flights typically cost between $195 and $358 in September. The cheapest round-trip price found within the last 3 days was $153 on Frontier (Sep 29-Oct 3).

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Cheap flight deals from Washington, D.C. to Philadelphia

Round-trip from	$153 (Frontier)
One-way from	$81 (Kiwi.com)
Popular in	June
Cheapest in	April
Average price	$249
Good round-trip deal	$293 or less
Good one-way deal	$168 or less

From Washington, D.C. (WAS) to Philadelphia

Search Deals

One-way flight from Washington, D.C. (WAS) to Philadelphia

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($60 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Philadelphia.

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Price to beat on a one-way flight from Washington, D.C. (WAS) to Philadelphia.

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Find flight deals from Washington, D.C. to Philadelphia

Cheapest flights from Washington, D.C. to Philadelphia
Explore the most affordable flight options available from Washington, D.C. to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Mon 9/297:45 pmBWI - PHL

1 stop4h 51mFrontier

Fri 10/36:00 amPHL - BWI

1 stop10h 50mFrontier

Deal found 9/14

$153

Mon 9/291:55 pmIAD - PHL

1 stop11h 02mFrontier

Fri 10/35:15 amPHL - IAD

1 stop13h 04mFrontier

Deal found 9/14

$153

Sat 10/182:20 pmBWI - PHL

1 stop8h 10mFrontier

Sun 10/196:00 amPHL - BWI

1 stop4h 35mFrontier

Deal found 9/14

$157

Fri 10/103:10 pmIAD - PHL

1 stop9h 15mFrontier

Tue 10/1410:22 amPHL - IAD

1 stop9h 24mFrontier

Deal found 9/14

$159

Fri 10/105:01 pmBWI - PHL

1 stop23h 45mMultiple Airlines

Mon 10/136:00 amPHL - BWI

1 stop4h 31mMultiple Airlines

Deal found 9/13

$168

Wed 10/228:45 amBWI - PHL

1 stop7h 50mFrontier

Sun 10/266:00 amPHL - BWI

1 stop4h 35mFrontier

Deal found 9/14

$172

Thu 11/271:44 pmDCA - PHL

1 stop21h 53mAmerican Airlines

Fri 11/283:05 pmPHL - DCA

Nonstop1h 02mAmerican Airlines

Deal found 9/14

$178

Sat 10/1812:54 pmDCA - PHL

Nonstop1h 05mAmerican Airlines

Sun 10/198:20 amPHL - DCA

Nonstop1h 09mAmerican Airlines

Deal found 9/14

$179

Fri 10/1012:50 pmIAD - PHL

Nonstop1h 14mUnited Airlines

Sun 10/1210:32 amPHL - IAD

Nonstop1h 13mUnited Airlines

Deal found 9/14

$179

Mon 9/227:45 pmBWI - PHL

1 stop4h 51mFrontier

Fri 9/266:00 amPHL - BWI

1 stop10h 50mFrontier

Deal found 9/13

$186

Fri 9/267:45 pmBWI - PHL

1 stop4h 44mMultiple Airlines

Sun 9/285:20 pmPHL - BWI

1 stop30h 17mMultiple Airlines

Deal found 9/13

$188

Sat 12/68:30 amIAD - PHL

1 stop8h 19mMultiple Airlines

Sun 12/76:12 pmPHL - IAD

1 stop13h 23mMultiple Airlines

Deal found 9/12

$188

Best flights from Washington, D.C. to Philadelphia
Discover carefully curated flight deals from Washington, D.C. to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Mon 9/297:45 pmBWI - PHL

1 stop4h 51mFrontier

Fri 10/36:00 amPHL - BWI

1 stop10h 50mFrontier

Deal found 9/14

$153

Thu 11/271:44 pmDCA - PHL

1 stop21h 53mAmerican Airlines

Fri 11/283:05 pmPHL - DCA

Nonstop1h 02mAmerican Airlines

Deal found 9/14

$178

Fri 11/285:55 pmIAD - PHL

Nonstop1h 10mUnited Airlines

Tue 12/28:05 pmPHL - IAD

Nonstop1h 10mUnited Airlines

Deal found 9/13

$179

Wed 10/225:20 pmBWI - PHL

2 stops17h 15mMultiple Airlines

Sun 10/265:51 pmPHL - BWI

1 stop17h 44mMultiple Airlines

Deal found 9/13

$186

Mon 11/39:13 amBWI - PHL

1 stop9h 31mFrontier

Thu 11/136:35 pmPHL - BWI

1 stop5h 32mFrontier

Deal found 9/12

$153

Tue 10/2810:00 amBWI - PHL

1 stop5h 05mFrontier

Sat 11/16:26 pmPHL - BWI

1 stop5h 36mFrontier

Deal found 9/14

$153

Tue 10/2812:54 pmDCA - PHL

Nonstop1h 05mAmerican Airlines

Sat 11/110:43 amPHL - DCA

Nonstop1h 16mAmerican Airlines

Deal found 9/14

$179

Fri 10/108:30 amIAD - PHL

Nonstop1h 16mUnited Airlines

Tue 10/143:00 pmPHL - IAD

Nonstop1h 07mUnited Airlines

Deal found 9/14

$179

Tue 10/288:47 amIAD - PHL

1 stop6h 18mFrontier

Sat 11/16:26 pmPHL - IAD

1 stop5h 29mFrontier

Deal found 9/14

$153

Fri 9/267:45 pmBWI - PHL

1 stop4h 44mMultiple Airlines

Sun 9/285:20 pmPHL - BWI

1 stop30h 17mMultiple Airlines

Deal found 9/13

$188

Sat 10/1812:54 pmDCA - PHL

Nonstop1h 05mAmerican Airlines

Sun 10/198:20 amPHL - DCA

Nonstop1h 09mAmerican Airlines

Deal found 9/14

$179

Sat 11/2212:55 pmIAD - PHL

Nonstop1h 11mUnited Airlines

Mon 11/248:00 pmPHL - IAD

Nonstop1h 06mUnited Airlines

Deal found 9/12

$179

Last-minute flights from Washington, D.C. to Philadelphia
Discover last-minute flight deals from Washington, D.C. to Philadelphia. Data last updated September 15, 2025 and is based on user searches.

Mon 9/227:45 pmBWI - PHL

1 stop4h 51mFrontier

Fri 9/266:00 amPHL - BWI

1 stop10h 50mFrontier

Deal found 9/13

$186

Fri 9/267:45 pmBWI - PHL

1 stop4h 44mMultiple Airlines

Sun 9/285:20 pmPHL - BWI

1 stop30h 17mMultiple Airlines

Deal found 9/13

$188

Sat 9/271:30 pmDCA - PHL

Nonstop1h 02mAmerican Airlines

Sun 9/289:34 amPHL - DCA

Nonstop1h 15mAmerican Airlines

Deal found 9/13

$189

Sat 9/2712:50 pmIAD - PHL

Nonstop1h 14mUnited Airlines

Sun 9/2810:32 amPHL - IAD

Nonstop1h 13mUnited Airlines

Deal found 9/13

$189

Mon 9/297:45 pmBWI - PHL

1 stop4h 51mFrontier

Fri 10/36:00 amPHL - BWI

1 stop10h 50mFrontier

Deal found 9/14

$153

Mon 9/291:55 pmIAD - PHL

1 stop11h 02mFrontier

Fri 10/35:15 amPHL - IAD

1 stop13h 04mFrontier

Deal found 9/14

$153

Fri 10/103:10 pmIAD - PHL

1 stop9h 15mFrontier

Tue 10/1410:22 amPHL - IAD

1 stop9h 24mFrontier

Deal found 9/14

$159

Fri 10/105:01 pmBWI - PHL

1 stop23h 45mMultiple Airlines

Mon 10/136:00 amPHL - BWI

1 stop4h 31mMultiple Airlines

Deal found 9/13

$168

Fri 10/105:45 pmIAD - PHL

Nonstop1h 12mUnited Airlines

Mon 10/137:58 pmPHL - IAD

Nonstop1h 07mUnited Airlines

Deal found 9/14

$179

Sat 10/182:20 pmBWI - PHL

1 stop8h 10mFrontier

Sun 10/196:00 amPHL - BWI

1 stop4h 35mFrontier

Deal found 9/14

$157

Sat 10/1812:54 pmDCA - PHL

Nonstop1h 05mAmerican Airlines

Sun 10/198:20 amPHL - DCA

Nonstop1h 09mAmerican Airlines

Deal found 9/14

$179

Wed 10/228:45 amBWI - PHL

1 stop7h 50mFrontier

Sun 10/266:00 amPHL - BWI

1 stop4h 35mFrontier

Deal found 9/14

$172

One-way flights from Washington, D.C. to Philadelphia
Search for one-way flight options from Washington, D.C. to Philadelphia. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Fri 9/267:45 pmBWI - PHL

1 stop4h 44mFrontier

Deal found 9/13

$81

Mon 9/297:45 pmBWI - PHL

1 stop20h 51mFrontier

Deal found 9/14

$90

Thu 10/21:17 pmBWI - PHL

1 stop10h 42mSpirit Airlines

Deal found 9/13

$99

Thu 10/27:14 pmIAD - PHL

1 stop17h 48mMultiple Airlines

Deal found 9/13

$100

Mon 9/297:14 pmIAD - PHL

1 stop17h 48mMultiple Airlines

Deal found 9/14

$106

Fri 9/2612:00 pmBWI - PHL

1 stop28h 44mMultiple Airlines

Deal found 9/14

$108

Thu 9/2512:50 pmIAD - PHL

2 stops26h 49mMultiple Airlines

Deal found 9/13

$109

Fri 10/175:01 pmBWI - PHL

1 stop7h 24mMultiple Airlines

Deal found 9/14

$110

Fri 9/263:15 pmIAD - PHL

1 stop25h 29mMultiple Airlines

Deal found 9/13

$110

Fri 10/173:10 pmIAD - PHL

1 stop9h 15mFrontier

Deal found 9/14

$112

Fri 10/313:49 pmIAD - PHL

1 stop8h 36mFrontier

Deal found 9/14

$113

Wed 10/154:39 pmDCA - PHL

1 stop5h 16mJetBlue

Deal found 9/15

$116

Cheapflights Fare Finder

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

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Mon 9/29

7:45 pm-12:36 am

1 stop4h 51m

Philadelphia

Fri 10/3

6:00 am-4:50 pm

1 stop10h 50m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Mon 11/3

9:13 am-6:44 pm

1 stop9h 31m

Philadelphia

Thu 11/13

6:35 pm-12:07 am

1 stop5h 32m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 10/28

10:00 am-3:05 pm

1 stop5h 05m

Philadelphia

Sat 11/1

6:26 pm-12:02 am

1 stop5h 36m

$153

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Tue 10/28

8:47 am-3:05 pm

1 stop6h 18m

Philadelphia

Sat 11/1

6:26 pm-11:55 pm

1 stop5h 29m

$153

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Tue 10/14

9:00 am-4:35 pm

1 stop7h 35m

Philadelphia

Wed 10/15

1:02 pm-7:46 pm

1 stop6h 44m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 10/18

2:20 pm-10:30 pm

1 stop8h 10m

Philadelphia

Sun 10/19

6:00 am-10:35 am

1 stop4h 35m

$157

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 10/17

3:10 pm-12:25 am

1 stop9h 15m

Philadelphia

Sat 10/18

6:15 pm-11:29 pm

1 stop5h 14m

$159

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 10/24

12:29 pm-8:53 pm

1 stop8h 24m

Philadelphia

Sun 10/26

6:00 am-10:35 am

1 stop4h 35m

$172

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 11/27

1:44 pm-11:37 am

1 stop21h 53m

Philadelphia

Fri 11/28

3:05 pm-4:07 pm

Nonstop1h 02m

$178

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 11/28

5:55 pm-7:05 pm

Nonstop1h 10m

Philadelphia

Tue 12/2

8:05 pm-9:15 pm

Nonstop1h 10m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 57 results

...

The best insider tips for Washington, D.C. to Philadelphia flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Philadelphia trip

Airports

IAD

For a smooth departure from IAD, use the Aerotrain to quickly reach distant gates, avoiding long walks.

PHL

Upon arrival at PHL, take the SEPTA Airport Line for a quick trip to Center City Philadelphia.

Our travel experts

Mark Chesnut

Expert on PHL

Ramsey Qubein

Expert on IAD

Best time to book a flight from Washington, D.C. to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Philadelphia

What is the cheapest month to book a flight from Washington, D.C. to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Philadelphia (average of $236). Flying from Washington, D.C. to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to PHL?

When flying from Washington, D.C. to Philadelphia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 41% versus a flight in the afternoon.

What is the cheapest day to fly from Washington, D.C. to Philadelphia?

Travelers seeking maximum savings on their Washington, D.C. to Philadelphia flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Philadelphia

The most flights from WAS to PHL are scheduled on a Monday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost to fly round-trip from Washington, D.C. to Philadelphia?

Reviews of airlines servicing Philadelphia

See what other customers who have flown with United Airlines and American Airlines from Washington, D.C. to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,931 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,931 reviews

United Airlines

7.4

Good

8,931 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,931 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What airport do you fly into for flights to Philadelphia from Washington, D.C.?
Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Philadelphia. 2 airlines have flights to Philadelphia from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Philadelphia should not be difficult; the airport handles an average of 15 inbound flights from Washington, D.C. per day.
How long is the flight from Washington, D.C. to Philadelphia?
For as low as $179, Frontier can have you in Philadelphia from Washington, D.C. in 1h 10m. The distance between Washington, D.C. and Philadelphia is about 134 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Washington, D.C. to Philadelphia round-trip?
Cheapflights users have booked flights from Washington, D.C. to Philadelphia round-trip from $179. Another airline that can offer you cheap pricing is American Airlines. These flights start at 43% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. to Philadelphia one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from Spirit Airlines and JetBlue, as they are both options that can get you from Washington, D.C. to Philadelphia for a low price.
What are the most popular routes from Washington, D.C. to Philadelphia?
While some choose either Washington, D.C. Reagan-National - Philadelphia or Baltimore/Washington - Philadelphia, Washington, D.C. Dulles Intl - Philadelphia is the most popular route from Washington, D.C. to Philadelphia.
What are the most reliable airlines from Washington, D.C. to Philadelphia?
No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Philadelphia consider choosing Air Canada (89%), Mesa Airlines (83%) or ANA (77%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Washington, D.C. to Philadelphia?
On average you can expect to pay $502 for a flight from Washington, D.C. to Philadelphia. The cheapest flight overall is $239 while the most popular route, (Washington, D.C. Dulles Intl - Philadelphia) is currently priced at $179.
Can I find deals for flights from Washington, D.C. to Philadelphia that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Philadelphia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Philadelphia.
Can I find deals for business class flights from Washington, D.C. to Philadelphia?
Yes. Cheapflights offers flight deals from Washington, D.C. to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Philadelphia?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Philadelphia (average of $236). Flying from Washington, D.C. to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Other flights to Philadelphia

Top 2 airlines flying from Washington, D.C. to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$179	Average$359	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$179	Average$349	FlexibilityNo cancel fee	On-time71%

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$81+ Cheap flights from Washington, D.C. (WAS) to Philadelphia (PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Philadelphia with Cheapflights

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Cheap flight deals from Washington, D.C. to Philadelphia

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One-way from

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Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington, D.C. to Philadelphia

Cheapest flights from Washington, D.C. to PhiladelphiaExplore the most affordable flight options available from Washington, D.C. to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Washington, D.C. to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Philadelphia that are best for you.

The best insider tips for Washington, D.C. to Philadelphia flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Philadelphia trip

Airports

IAD

PHL

Our travel experts

Best time to book a flight from Washington, D.C. to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Philadelphia

What is the cheapest month to book a flight from Washington, D.C. to Philadelphia?

What is the cheapest time of day to fly from WAS to PHL?

Find hourly flight availability from Washington, D.C. to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

What is the cheapest day to fly from Washington, D.C. to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Philadelphia. Price data was last updated on December 16, 2024.

Weekly flight availability from Washington, D.C. to Philadelphia

How much does it cost to fly round-trip from Washington, D.C. to Philadelphia?

Reviews of airlines servicing Philadelphia

See what other customers who have flown with United Airlines and American Airlines from Washington, D.C. to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Philadelphia from Washington, D.C.?

How long is the flight from Washington, D.C. to Philadelphia?

What are the cheapest airlines flying from Washington, D.C. to Philadelphia round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Philadelphia one-way?

What are the most popular routes from Washington, D.C. to Philadelphia?

What are the most reliable airlines from Washington, D.C. to Philadelphia?

What are the cheapest flights from Washington, D.C. to Philadelphia?

Can I find deals for flights from Washington, D.C. to Philadelphia that include hotel bookings?

How can I find direct flights from Washington, D.C. to Philadelphia?

Can I find deals for business class flights from Washington, D.C. to Philadelphia?

What is the cheapest month to book a flight from Washington, D.C. to Philadelphia?

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Alternative routes for Washington, D.C. to Philadelphia

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Cheapest flights from Washington, D.C. to Philadelphia
Explore the most affordable flight options available from Washington, D.C. to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.