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$76+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PHL
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$133
(Kiwi.com)

One-way from

$76
(JetBlue)

Popular in

June

Cheapest in

April

Average price

$473

Good round-trip deal

$319 or less

Good one-way deal

$203 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Philadelphia flights.
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From Washington, D.C. (WAS) to Philadelphia
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One-way flight from Washington, D.C. (WAS) to Philadelphia
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:00 am
BWI
-
PHL
1 stop11h 12m
Frontier
Tue 3/36:40 pm
PHL
-
BWI
1 stop5h 51m
Frontier
Deal found 1/12$133
This Kiwi.com deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/311:00 pm
BWI
-
PHL
1 stop11h 30m
Multiple Airlines
Sat 2/73:54 pm
PHL
-
BWI
1 stop6h 47m
Multiple Airlines
Deal found 1/11$140
This Expedia deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/214:45 pm
BWI
-
PHL
1 stop6h 31m
Spirit Airlines
Wed 2/255:30 am
PHL
-
BWI
1 stop5h 47m
Spirit Airlines
Deal found 1/12$145
This Kiwi.com deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:39 pm
BWI
-
PHL
1 stop14h 39m
Frontier
Tue 2/2411:40 am
PHL
-
BWI
1 stop12h 51m
Frontier
Deal found 1/10$147
This Kiwi.com deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/261:00 pm
BWI
-
PHL
1 stop26h 41m
Multiple Airlines
Fri 1/308:18 pm
PHL
-
BWI
1 stop17h 48m
Multiple Airlines
Deal found 1/11$148
This Expedia deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/31:00 pm
DCA
-
PHL
1 stop5h 23m
JetBlue
Thu 2/58:40 am
PHL
-
DCA
1 stop7h 39m
JetBlue
Deal found 1/12$151
This Kiwi.com deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/276:20 am
BWI
-
PHL
1 stop9h 21m
Multiple Airlines
Sat 1/318:30 am
PHL
-
BWI
1 stop10h 33m
Multiple Airlines
Deal found 1/12$154
This Kiwi.com deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/309:35 am
IAD
-
PHL
1 stop8h 17m
Frontier
Sun 2/110:45 pm
PHL
-
IAD
1 stop13h 51m
Frontier
Deal found 1/10$156
This Kiwi.com deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/301:00 pm
BWI
-
PHL
1 stop10h 59m
Multiple Airlines
Wed 2/412:39 pm
PHL
-
BWI
1 stop10h 57m
Multiple Airlines
Deal found 1/11$161
This Kiwi.com deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/94:44 pm
BWI
-
PHL
1 stop27h 04m
Multiple Airlines
Mon 2/167:18 pm
PHL
-
BWI
1 stop29h 13m
Multiple Airlines
Deal found 1/12$162
This Kiwi.com deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:37 pm
IAD
-
PHL
1 stop7h 24m
Frontier
Sun 3/17:53 pm
PHL
-
IAD
1 stop11h 27m
Frontier
Deal found 1/11$162
This Kiwi.com deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:05 am
BWI
-
PHL
1 stop18h 47m
Frontier
Sun 3/229:17 am
PHL
-
BWI
1 stop29h 07m
Frontier
Deal found 1/11$163

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 12, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Philadelphia that are best for you.

Fly from

Washington, D.C.

Fly to

Philadelphia

Route

Depart

Return

Price

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 2/24

6:00 am-5:12 pm

1 stop11h 12m

Philadelphia

Tue 3/3

6:40 pm-12:31 am

1 stop5h 51m

$133

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 2/21

4:45 pm-11:16 pm

1 stop6h 31m

Philadelphia

Wed 2/25

5:30 am-11:17 am

1 stop5h 47m

$145

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 2/20

8:39 pm-11:18 am

1 stop14h 39m

Philadelphia

Tue 2/24

11:40 am-12:31 am

1 stop12h 51m

$147

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Wed 2/25

10:00 am-2:07 pm

1 stop4h 07m

Philadelphia

Thu 2/26

6:00 am-11:05 am

1 stop5h 05m

$151

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Tue 2/3

1:00 pm-6:23 pm

1 stop5h 23m

Philadelphia

Thu 2/5

8:40 am-4:19 pm

1 stop7h 39m

$151

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 2/10

6:20 am-5:44 pm

1 stop11h 24m

Philadelphia

Tue 2/17

7:59 pm-9:06 am

1 stop13h 07m

$154

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Mon 2/9

4:44 pm-7:48 pm

1 stop27h 04m

Philadelphia

Mon 2/16

7:18 pm-12:31 am

1 stop29h 13m

$162

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 2/27

5:37 pm-1:01 am

1 stop7h 24m

Philadelphia

Sun 3/1

7:53 pm-7:20 am

1 stop11h 27m

$162

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sun 3/15

6:05 am-12:52 am

1 stop18h 47m

Philadelphia

Sun 3/22

9:17 am-2:24 pm

1 stop29h 07m

$163

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 1/31

5:30 am-4:49 pm

2 stops11h 19m

Philadelphia

Sat 2/7

3:54 pm-10:41 pm

1 stop6h 47m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 54 results
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Compare providers for flights from Washington, D.C. to Philadelphia

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 Washington, D.C. to Philadelphia in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 Washington, D.C.-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams 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 Washington, D.C.-Philadelphia 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 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, April is the cheapest month in which you can book a flight from Washington, D.C. to Philadelphia (average of $54). Flying from Washington, D.C. to Philadelphia in August is currently the most expensive (average of $117). 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?

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 January 12, 2026.

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 evening.

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 January 10, 2026.

Travelers seeking maximum savings on their Washington, D.C. to Philadelphia flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday 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

Explore weekly flight availability from Washington, D.C. to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 12, 2026.

The most flights from WAS to PHL are scheduled on a Monday (16 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 on average).

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

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

Read more about IADBy Ramsey Qubein
PHL

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

Read more about PHLBy Mark Chesnut
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

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.

Read more

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated January 12, 2026.
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
9,149 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

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
9,149 reviews
United Airlines
7.4
Good
9,149 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

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
7.2
Good
11,114 reviews
United Airlines
7.4
Good
9,149 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

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

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.?

    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 14 inbound flights from Washington, D.C. per day.

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

    For as low as $151, Frontier can have you in Philadelphia from Washington, D.C. in 4h 07m. The distance between Washington, D.C. and Philadelphia is about 119 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 United Airlines. These flights start at 46% lower than the current average price 3 months from now.

  • 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 CommutAir (100%), Mesa Airlines (100%) or Air Canada (89%) 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 $408 for a flight from Washington, D.C. to Philadelphia. The cheapest flight overall is $179 while the most popular route, (Washington, D.C. Dulles Intl - Philadelphia) is currently priced at $170.

  • 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, April is the cheapest month in which you can book a flight from Washington, D.C. to Philadelphia (average of $54). Flying from Washington, D.C. to Philadelphia in August is currently the most expensive (average of $117). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Newark
Chester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to LaGuardia flights
Reagan-National to John F Kennedy Intl flights
Dulles Intl to LaGuardia flights
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Reagan-National to Pittsburgh flights
Dulles Intl to Philadelphia flights
Reagan-National to Philadelphia flights
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Reagan-National to Allentown flights
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Reagan-National to Harrisburg flights
Dulles Intl to Scranton flights
Dulles Intl to Erie flights
Dulles Intl to Elmira flights
Reagan-National to Erie flights
Reagan-National to Elmira flights
Reagan-National to Williamsport flights

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

Discover the top 2 airlines that operate flights from Washington, D.C. to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$437FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$179Average$410FlexibilityNo cancel feeOn-time69%

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