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Washington, D.C.

$77+ Cheap flights from Philadelphia (PHL) to Washington, D.C. (WAS)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — WAS
Jul 21 — Jul 281
Tue 7/21
Tue 7/28
1 adult, Economy
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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 June 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/20. 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 8/44:30 pm
PHL
-
BWI
1 stop6h 47m
Frontier
Tue 8/116:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Deal found 6/20$146
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Wed 7/154:30 pm
PHL
-
BWI
1 stop6h 47m
Frontier
Wed 7/226:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Deal found 6/17$148
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 8/226:30 am
PHL
-
BWI
1 stop5h 54m
Frontier
Wed 8/268:38 am
BWI
-
PHL
1 stop13h 55m
Frontier
Deal found 6/20$165
This Trip.com deal was found by Cheapflights users on 6/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/214:30 pm
PHL
-
BWI
1 stop6h 47m
Frontier
Wed 7/226:35 am
BWI
-
PHL
1 stop15h 53m
Frontier
Deal found 6/16$167
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 8/48:30 am
PHL
-
IAD
1 stop8h 10m
Frontier
Tue 8/118:33 pm
IAD
-
PHL
1 stop10h 42m
Frontier
Deal found 6/20$171
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Wed 7/156:30 am
PHL
-
IAD
1 stop10h 44m
Frontier
Wed 7/227:49 am
IAD
-
PHL
1 stop14h 39m
Frontier
Deal found 6/20$173
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/189:51 am
PHL
-
BWI
1 stop5h 43m
Frontier
Sat 7/256:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Deal found 6/20$174
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Wed 7/158:30 am
PHL
-
BWI
1 stop10h 03m
Frontier
Fri 7/177:21 pm
BWI
-
PHL
1 stop13h 18m
Frontier
Deal found 6/18$181
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Thu 7/236:18 pm
PHL
-
IAD
1 stop20h 08m
Multiple Airlines
Tue 7/288:33 pm
IAD
-
PHL
1 stop10h 42m
Multiple Airlines
Deal found 6/17$185
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/41:32 pm
PHL
-
BWI
1 stop9h 28m
Frontier
Tue 7/79:37 pm
BWI
-
PHL
1 stop9h 38m
Frontier
Deal found 6/17$189
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 8/26:18 pm
PHL
-
IAD
1 stop20h 08m
Multiple Airlines
Sun 8/98:33 pm
IAD
-
PHL
1 stop10h 42m
Multiple Airlines
Deal found 6/18$193
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Thu 8/276:30 am
PHL
-
BWI
1 stop5h 54m
Frontier
Thu 8/279:32 pm
BWI
-
PHL
1 stop9h 43m
Frontier
Deal found 6/20$196

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

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Washington, D.C. (WAS). 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 June 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$146
(Kiwi.com)

One-way from

$77
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$367

Good round-trip deal

$403 or less

Good one-way deal

$243 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. 33% potential increase in price ($178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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

 
Customize your flight search to find flights from Philadelphia to Washington, D.C. 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 June 21, 2026.
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

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Sat 7/18

9:51 am-3:34 pm

1 stop5h 43m

Baltimore/Washington

Sat 7/25

6:35 am-12:22 pm

1 stop5h 47m

$174

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Thu 8/6

8:30 am-3:34 pm

1 stop7h 04m

Baltimore/Washington

Wed 8/12

6:35 am-10:28 pm

1 stop15h 53m

$174

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Thu 8/27

6:30 am-12:24 pm

1 stop5h 54m

Baltimore/Washington

Thu 8/27

9:32 pm-7:15 am

1 stop9h 43m

$196

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Mon 8/3

4:40 pm-7:26 am

1 stop14h 46m

Baltimore/Washington

Fri 8/7

9:37 pm-8:39 am

1 stop11h 02m

$204

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Thu 7/23

8:30 am-3:34 pm

1 stop7h 04m

Baltimore/Washington

Thu 7/30

7:07 pm-7:15 am

1 stop12h 08m

$227

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Mon 10/19

10:45 am-2:50 pm

1 stop4h 05m

Washington, D.C. Reagan-National

Thu 11/5

1:20 pm-5:32 pm

1 stop4h 12m

$231

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Tue 9/1

8:28 am-2:30 pm

1 stop6h 02m

Washington, D.C. Reagan-National

Wed 9/2

1:25 pm-8:00 pm

1 stop6h 35m

$231

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Sat 8/22

3:25 pm-4:48 pm

Nonstop1h 23m

Washington, D.C. Reagan-National

Wed 8/26

1:55 pm-3:05 pm

Nonstop1h 10m

$239

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sat 7/18

6:10 am-7:19 am

Nonstop1h 09m

Washington, D.C. Dulles Intl

Sat 7/25

10:10 pm-11:20 pm

Nonstop1h 10m

$239

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sat 8/22

10:30 am-11:39 am

Nonstop1h 09m

Washington, D.C. Dulles Intl

Wed 8/26

1:05 pm-2:21 pm

Nonstop1h 16m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 60 resultsSorted by cheapest first
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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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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.
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.

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

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $144). Flying from Philadelphia to Washington, D.C. in May is currently the most expensive (average of $309). 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?

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 June 21, 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 in the afternoon, which is usually more expensive.

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

Explore weekly flight availability from Philadelphia to Washington, D.C.. 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 June 21, 2026.

The most flights from PHL to WAS are scheduled on a Friday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

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 June 20, 2026.

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

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.

Read more
Ramsey Qubein

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.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated June 21, 2026.
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
9,865 reviews

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,865 reviews
United Airlines
7.4
Good
9,865 reviews

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,715 reviews
United Airlines
7.4
Good
9,865 reviews

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Washington, D.C.. 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 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 12 outbound flights to Washington, D.C. per day.

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

    Airlines like Frontier, JetBlue, and United 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 55m. Airlines will cover a distance of 134 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 50% 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. Reagan-National. You may also consider Philadelphia - Washington, D.C. Dulles Intl 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%), Republic Airways (86%), Ethiopian Air (86%).

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

    On average you can expect to pay $649 for a flight from Philadelphia to Washington, D.C.. The cheapest flight overall is $184 while the most popular route, (Philadelphia - Washington, D.C. Reagan-National) is currently priced at $219.

  • 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, October is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $144). Flying from Philadelphia to Washington, D.C. in May is currently the most expensive (average of $309). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Laurel
Hanover
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Discover the top 2 airlines that operate flights from Philadelphia to Washington, D.C.. 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 June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$206Average$487FlexibilityNo cancel feeOn-time69%

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