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

Airlines like Frontier, JetBlue, and American Airlines fly from Philadelphia to Washington, D.C. in about 1h 09m. The time it takes to get you to your destination can typically vary by up to 5h 52m. Airlines will cover a distance of 119 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Cheapflights users have booked flights from Philadelphia to Washington, D.C. round-trip from $179. Another airline that can offer you cheap pricing is United Airlines. American Airlines is currently priced 53% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

The most popular route from Philadelphia to Washington, D.C. is Philadelphia - Washington, D.C. Dulles Intl. You may also consider Philadelphia - Washington, D.C. Reagan-National or Philadelphia - Baltimore/Washington.

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

On average you can expect to pay $697 for a flight from Philadelphia to Washington, D.C.. The cheapest flight overall is $153 while the most popular route, (Philadelphia - Washington, D.C. Dulles Intl) is currently priced at $289.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Philadelphia to Washington, D.C. on time: ANA (92%), Air China (89%), Mesa Airlines (85%).

Most accurate provider : When it comes to deals on Philadelphia-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Philadelphia-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Washington, D.C.. 2 airlines have flights from Philadelphia to Washington, D.C. on a regular basis. Booking flights from Philadelphia to Washington, D.C. should not be difficult; the airport handles an average of 7 outbound flights to Washington, D.C. per day.

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

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

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

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

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

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

$40+ Cheap Flights from Philadelphia to Washington, D.C.

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

Cheapest

Best

Last-minute

One-way

Cheapest flights from Philadelphia to Washington, D.C.
Explore the most affordable flight options available from Philadelphia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.

Tue 10/208:30 am -

1 stop8h 43m

Tue 10/279:06 pm -

1 stop10h 15m

Deal found 9/20

$92

Tue 10/208:30 am -

1 stop8h 43m

Sat 10/247:50 am -

1 stop15h 21m

Deal found 9/18

$96

Wed 11/1112:36 pm -

1 stop11h 07m

Mon 11/167:40 am -

1 stop23h 41m

Deal found 9/22

$111

Sat 10/318:39 am -

1 stop8h 33m

Mon 11/29:06 pm -

1 stop10h 15m

Deal found 9/20

$132

Thu 10/156:30 am -

1 stop4h 36m

Sun 10/186:00 am -

1 stop6h 04m

Deal found 9/22

$284

Fri 10/168:00 am -

1 stop6h 59m

Sun 10/186:00 am -

1 stop6h 04m

Deal found 9/19

$288

Fri 10/168:47 pm -

Nonstop1h 12m

Mon 10/195:10 pm -

Nonstop1h 11m

Deal found 9/19

$289

Tue 10/206:30 am -

1 stop4h 36m

Sat 10/244:50 pm -

1 stop6h 56m

Deal found 9/18

$290

Fri 10/1612:58 pm -

1 stop8h 09m

Sun 10/256:00 am -

1 stop6h 28m

Deal found 9/22

$298

Fri 10/168:47 pm -

Nonstop1h 12m

Fri 10/235:00 am -

1 stop4h 37m

Deal found 9/18

$299

Wed 11/258:00 am -

1 stop8h 58m

Tue 12/17:39 am -

1 stop9h 13m

Deal found 9/22

$302

Fri 10/1612:58 pm -

1 stop8h 09m

Fri 10/236:00 am -

1 stop6h 04m

Deal found 9/18

$304

Best flights from Philadelphia to Washington, D.C.
Discover carefully curated flight deals from Philadelphia to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Sat 10/175:20 pm -

1 stop7h 01m

Sat 10/247:50 am -

2 stops16h 48m

Deal found 9/19

$228

Sat 10/3110:27 am -

1 stop5h 48m

Mon 11/210:39 am -

1 stop4h 06m

Deal found 9/20

$288

Tue 10/203:51 pm -

Nonstop1h 09m

Sat 10/241:29 pm -

Nonstop1h 08m

Deal found 9/18

$289

Thu 11/57:40 pm -

Nonstop1h 13m

Sun 11/810:15 pm -

Nonstop1h 15m

Deal found 9/19

$289

Wed 11/253:59 pm -

Nonstop1h 20m

Tue 12/15:20 pm -

Nonstop1h 11m

Deal found 9/22

$289

Wed 3/310:15 am -

Nonstop1h 08m

Mon 3/812:45 pm -

Nonstop1h 06m

Deal found 9/19

$289

Tue 10/206:30 am -

1 stop4h 36m

Sat 10/244:50 pm -

1 stop6h 56m

Deal found 9/18

$290

Thu 11/512:10 pm -

2 stops22h 11m

Sun 11/89:06 pm -

1 stop10h 15m

Deal found 9/18

$297

Mon 10/198:47 pm -

Nonstop1h 12m

Mon 10/261:29 pm -

Nonstop1h 08m

Deal found 9/21

$289

Thu 10/1510:40 am -

Nonstop1h 09m

Sun 10/1810:16 pm -

Nonstop1h 14m

Deal found 9/22

$289

Thu 10/1510:22 am -

1 stop6h 59m

Sun 10/186:00 am -

1 stop6h 04m

Deal found 9/22

$291

Wed 11/1110:30 am -

Nonstop1h 10m

Mon 11/168:36 am -

Nonstop1h 13m

Deal found 9/23

$289

Fri 10/238:47 pm -

Nonstop1h 12m

Sun 10/255:00 am -

1 stop4h 37m

Deal found 9/18

$299

Fri 10/1612:58 pm -

1 stop8h 09m

Fri 10/236:00 am -

1 stop6h 04m

Deal found 9/18

$304

Fri 10/1610:40 am -

Nonstop1h 09m

Mon 10/1910:16 pm -

Nonstop1h 14m

Deal found 9/19

$289

Fri 12/46:38 pm -

1 stop4h 29m

Sun 12/65:00 am -

1 stop4h 23m

Deal found 9/18

$309

Fri 10/167:30 pm -

Nonstop1h 19m

Fri 10/2310:16 pm -

Nonstop1h 14m

Deal found 9/18

$289

Fri 10/167:35 pm -

1 stop4h 24m

Mon 10/195:00 am -

1 stop4h 37m

Deal found 9/19

$309

Thu 10/83:51 pm -

Nonstop1h 09m

Mon 10/121:29 pm -

Nonstop1h 08m

Deal found 9/22

$319

Sat 10/37:30 pm -

Nonstop1h 19m

Wed 10/78:30 am -

Nonstop1h 12m

Deal found 9/18

$319

Wed 10/77:30 pm -

Nonstop1h 19m

Sun 10/1110:16 pm -

Nonstop1h 14m

Deal found 9/22

$319

Last-minute flights from Philadelphia to Washington, D.C.
Discover last-minute flight deals from Philadelphia to Washington, D.C.. Data last updated September 23, 2026 and is based on user searches.

Thu 10/156:30 am -

1 stop4h 36m

Sun 10/186:00 am -

1 stop6h 04m

Deal found 9/22

$284

Fri 10/168:00 am -

1 stop6h 59m

Sun 10/186:00 am -

1 stop6h 04m

Deal found 9/19

$288

Fri 10/168:47 pm -

Nonstop1h 12m

Mon 10/195:10 pm -

Nonstop1h 11m

Deal found 9/19

$289

Fri 10/1612:58 pm -

1 stop8h 09m

Sun 10/256:00 am -

1 stop6h 28m

Deal found 9/22

$298

Fri 10/168:47 pm -

Nonstop1h 12m

Fri 10/235:00 am -

1 stop4h 37m

Deal found 9/18

$299

Sat 10/175:20 pm -

1 stop7h 01m

Sat 10/247:50 am -

1 stop15h 21m

Deal found 9/19

$163

Mon 10/195:22 pm -

1 stop6h 59m

Mon 10/269:06 pm -

1 stop10h 15m

Deal found 9/21

$151

Tue 10/208:30 am -

1 stop8h 43m

Tue 10/279:06 pm -

1 stop10h 15m

Deal found 9/20

$92

Tue 10/208:30 am -

1 stop8h 43m

Sat 10/247:50 am -

1 stop15h 21m

Deal found 9/18

$96

Tue 10/206:30 am -

1 stop4h 36m

Sat 10/244:50 pm -

1 stop6h 56m

Deal found 9/18

$290

Sat 10/318:39 am -

1 stop8h 33m

Mon 11/29:06 pm -

1 stop10h 15m

Deal found 9/20

$132

Sat 10/318:39 am -

1 stop8h 33m

Sat 10/319:06 pm -

1 stop11h 05m

Deal found 9/20

$149

One-way flights from Philadelphia to Washington, D.C.
Search for one-way flight options from Philadelphia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

Wed 10/218:30 am -

1 stop15h 51m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$40

Tue 11/1712:36 pm -

2 stops23h 33m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$98

Wed 11/1812:36 pm -

2 stops23h 33m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$107

Mon 11/165:22 pm -

2 stops23h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/19

$109

Tue 10/205:22 pm -

2 stops42h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/19

$110

Mon 12/216:48 pm -

1 stop13h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/19

$111

Mon 10/57:15 am -

2 stops10h 41m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$122

Mon 10/53:30 pm -

1 stop18h 47m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$126

Fri 10/305:22 pm -

1 stop23h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$127

Fri 10/236:27 pm -

2 stops22h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$128

Sat 11/145:20 pm -

2 stops42h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$132

Sun 11/158:30 am -

2 stops37h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$133

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$92 (Mytrip)
One-way from	$40 (Mytrip)
Popular in	May
Cheapest in	November
Average price	$365
Good round-trip deal	$328 or less
Good one-way deal	$273 or less

Provider with most accurate pricing for Philadelphia-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Philadelphia-Washington, D.C. (WAS) flights.

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 28% potential increase in price ($152 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 13% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Wed 10/21

5:22 pm-10:17 am

2 stops16h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$83

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Mon 11/16

8:30 am-4:47 pm

2 stops32h 17m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$114

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Thu 11/19

1:25 pm-5:55 pm

1 stop4h 30m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$143

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Tue 11/17

3:35 pm-8:09 pm

1 stop4h 34m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$143

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Thu 10/22

6:00 am-2:59 pm

1 stop8h 59m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$144

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Thu 11/19

2:36 pm-12:59 pm

2 stops22h 23m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$148

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Thu 12/17

9:29 am-2:53 pm

1 stop5h 24m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$156

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Thu 10/15

12:35 pm-9:59 pm

2 stops33h 24m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$156

PhiladelphiaWashington, D.C.

PHL Philadelphia - DCA Washington, D.C. Reagan-National

PHLDCA

Philadelphia

Mon 11/23

9:10 am-3:59 pm

1 stop6h 49m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 10/6

8:41 am-12:10 am

1 stop15h 29m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 45 resultsSorted by cheapest first

...

Compare providers for flights from Philadelphia to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Washington, D.C. in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Philadelphia-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Philadelphia-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

PHL-WAS

PHL-IAD

PHL-DCA

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 Philadelphia to Washington, D.C.

PHL-WAS

PHL-IAD

PHL-DCA

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

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $239). Flying from Philadelphia to Washington, D.C. in May is currently the most expensive (average of $605). 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 PHL to WAS?

It’s typically best to fly out from Philadelphia to Washington, D.C. in the morning. Doing so could potentially save you 31% on the flight price compared to flying at noon, which is usually more expensive.

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

The most flights from PHL to WAS are scheduled on a Tuesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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

Airfare is below average for this route at the moment.

Philadelphia to Washington, D.C. flights typically cost between $274 and $328 in October.
The cheapest round-trip price found within the last 5 days was $92 on Frontier (Oct 20-Oct 27).

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

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

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

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

Our travel experts

Mark Chesnut

Expert on PHL

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Philadelphia to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,226 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,226 reviews

United Airlines

7.4

Good

10,226 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

American Airlines

7.0

Good

12,076 reviews

United Airlines

7.4

Good

10,226 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

What airport do you fly from for flights from Philadelphia to Washington, D.C.?
Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Washington, D.C.. 2 airlines have flights from Philadelphia to Washington, D.C. on a regular basis. Booking flights from Philadelphia to Washington, D.C. should not be difficult; the airport handles an average of 7 outbound flights to Washington, D.C. per day.
How long is the flight from Philadelphia to Washington, D.C.?
Airlines like Frontier, JetBlue, and American Airlines fly from Philadelphia to Washington, D.C. in about 1h 09m. The time it takes to get you to your destination can typically vary by up to 5h 52m. Airlines will cover a distance of 119 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Philadelphia to Washington, D.C. round-trip?
Cheapflights users have booked flights from Philadelphia to Washington, D.C. round-trip from $179. Another airline that can offer you cheap pricing is United Airlines. American Airlines is currently priced 53% below the average price you’ll pay for this route.
What are the most popular routes from Philadelphia to Washington, D.C.?
The most popular route from Philadelphia to Washington, D.C. is Philadelphia - Washington, D.C. Dulles Intl. You may also consider Philadelphia - Washington, D.C. Reagan-National or Philadelphia - Baltimore/Washington.
What are the most reliable airlines from Philadelphia to Washington, D.C.?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Philadelphia to Washington, D.C. on time: ANA (92%), Air China (89%), Mesa Airlines (85%).
What are the cheapest flights from Philadelphia to Washington, D.C.?
On average you can expect to pay $697 for a flight from Philadelphia to Washington, D.C.. The cheapest flight overall is $153 while the most popular route, (Philadelphia - Washington, D.C. Dulles Intl) is currently priced at $289.
Can I find deals for flights from Philadelphia to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Philadelphia to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Washington, D.C..
Can I find deals for business class flights from Philadelphia to Washington, D.C.?
Yes. Cheapflights offers flight deals from Philadelphia to Washington, D.C. 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 Philadelphia to Washington, D.C.?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $239). Flying from Philadelphia to Washington, D.C. in May is currently the most expensive (average of $605). 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.

See more FAQs

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Woodbridge

Reston

Herndon

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Alternative routes for Philadelphia to Washington, D.C.

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

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$179	Average$552	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$239	Average$489	FlexibilityNo cancel fee	On-time69%

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$40+ Cheap flights from Philadelphia (PHL) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from Philadelphia to Washington, D.C.Explore the most affordable flight options available from Philadelphia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.

Explore the most affordable flight options available from Philadelphia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.

Best flights from Philadelphia to Washington, D.C.Discover carefully curated flight deals from Philadelphia to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Discover carefully curated flight deals from Philadelphia to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Last-minute flights from Philadelphia to Washington, D.C.Discover last-minute flight deals from Philadelphia to Washington, D.C.. Data last updated September 23, 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Washington, D.C.. Data last updated September 23, 2026 and is based on user searches.

One-way flights from Philadelphia to Washington, D.C.Search for one-way flight options from Philadelphia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

Search for one-way flight options from Philadelphia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

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

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

Compare providers for flights from Philadelphia to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Washington, D.C. in September.

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

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

Cheapflights Insights

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

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

Find hourly flight availability from Philadelphia to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.

It’s typically best to fly out from Philadelphia to Washington, D.C. in the morning. Doing so could potentially save you 31% on the flight price compared to flying at noon, which is usually more expensive.

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

The most flights from PHL to WAS are scheduled on a Tuesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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

Airfare is below average for this route at the moment.

Philadelphia to Washington, D.C. flights typically cost between $274 and $328 in October.The cheapest round-trip price found within the last 5 days was $92 on Frontier (Oct 20-Oct 27).

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Washington, D.C.. Price data was last updated on September 19, 2026.

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

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

AI-powered summary based on content written by travel experts. AI can make mistakes.

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

Our travel experts

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Philadelphia to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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

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

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

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

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Alternative routes for Philadelphia to Washington, D.C.

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Complete your trip

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Philadelphia and Washington, D.C. flights

Browse other Philadelphia and Washington, D.C. flight options. Last updated on September 23, 2026.

Other flights from Philadelphia

Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.

Popular flight searches

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Philadelphia to Washington, D.C. flights

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Cheapest flights from Philadelphia to Washington, D.C.
Explore the most affordable flight options available from Philadelphia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.

Best flights from Philadelphia to Washington, D.C.
Discover carefully curated flight deals from Philadelphia to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Last-minute flights from Philadelphia to Washington, D.C.
Discover last-minute flight deals from Philadelphia to Washington, D.C.. Data last updated September 23, 2026 and is based on user searches.

One-way flights from Philadelphia to Washington, D.C.
Search for one-way flight options from Philadelphia to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

Philadelphia to Washington, D.C. flights typically cost between $274 and $328 in October.
The cheapest round-trip price found within the last 5 days was $92 on Frontier (Oct 20-Oct 27).