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Washington, D.C.

$103+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — WAS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$178
(American Airlines)

One-way from

$87
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$294

Good round-trip deal

$320 or less

Good one-way deal

$295 or less
From Philadelphia to Washington, D.C. (WAS)
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One-way flight from Philadelphia to Washington, D.C. (WAS)
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Philadelphia to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Philadelphia to Washington, D.C. (WAS).
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Find 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2110:30 amPHL - DCA
Nonstop1h 13mAmerican Airlines
Sun 8/246:10 amDCA - PHL
Nonstop1h 11mAmerican Airlines
Deal found 7/31$178
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/297:58 pmPHL - IAD
Nonstop1h 07mUnited Airlines
Mon 9/112:52 pmIAD - PHL
Nonstop1h 14mUnited Airlines
Deal found 7/29$179
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/289:47 amPHL - BWI
1 stop14h 12mSpirit Airlines
Tue 9/22:30 pmBWI - PHL
1 stop6h 19mSpirit Airlines
Deal found 7/31$187
This Expedia deal was found by Cheapflights users on 7/31. 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.
Wed 12/39:25 amPHL - DCA
1 stop5h 33mJetBlue
Sat 12/62:25 pmDCA - PHL
1 stop7h 11mJetBlue
Deal found 7/31$201
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:59 pmPHL - IAD
2 stops17h 24mMultiple Airlines
Sun 8/244:56 pmIAD - PHL
2 stops20h 05mMultiple Airlines
Deal found 7/30$257
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:30 amPHL - IAD
1 stop4h 18mAmerican Airlines
Sun 8/246:34 amIAD - PHL
1 stop4h 10mAmerican Airlines
Deal found 7/31$287

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 July 31, 2025.
Use the filters below to find and compare flights from Philadelphia to Washington, D.C. that are best for you.

Fly from

Philadelphia

Fly to

Washington, D.C.

Route

Depart

Return

Price

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Thu 8/21

10:30 am-11:43 am

Nonstop1h 13m

Washington, D.C. Reagan-National

Sun 8/24

6:10 am-7:21 am

Nonstop1h 11m

$178

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Fri 8/29

7:58 pm-9:05 pm

Nonstop1h 07m

Washington, D.C. Dulles Intl

Mon 9/1

12:52 pm-2:06 pm

Nonstop1h 14m

$179

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Thu 8/28

9:47 am-11:59 pm

1 stop14h 12m

Baltimore/Washington

Tue 9/2

2:30 pm-8:49 pm

1 stop6h 19m

$187

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Thu 9/4

7:00 am-11:08 am

1 stop4h 08m

Washington, D.C. Reagan-National

Thu 9/4

1:35 pm-5:40 pm

1 stop4h 05m

$215

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 8/21

9:59 pm-3:23 pm

2 stops17h 24m

Washington, D.C. Dulles Intl

Sun 8/24

4:56 pm-1:01 pm

2 stops20h 05m

$257

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 8/21

8:30 am-12:48 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

Sun 8/24

6:34 am-10:44 am

1 stop4h 10m

$287

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Sun 8/10

6:30 am-11:59 am

1 stop5h 29m

Washington, D.C. Reagan-National

Sun 8/10

2:00 pm-9:35 pm

1 stop7h 35m

$691

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

Wed 10/1

1:58 pm-7:47 pm

1 stop5h 49m

$103

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

Sat 9/27

10:20 am-5:05 pm

1 stop6h 45m

$111

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Sat 8/16

2:06 pm-10:14 am

2 stops20h 08m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 18 results
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The best insider tips for Philadelphia to Washington, D.C. flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Washington, D.C. trip
Airports
PHL

For efficient parking, choose the facility across from your terminal. Long-term and economy lots are cheaper with free shuttle service.

Read more about PHLby Mark Chesnut
IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cost-effective way to the city.

Read more about IADby Ramsey Qubein
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

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, August is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $241). Flying from Philadelphia to Washington, D.C. in March is currently the most expensive (average of $290). 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 July 31, 2025.

It’s typically best to fly out from Philadelphia to Washington, D.C. in the morning. Doing so could potentially save you 48% on the flight price compared to flying at noon, which is usually more expensive.

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 December 16, 2024.

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

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 July 31, 2025.

The most flights from PHL to WAS are scheduled on a Thursday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 July 31, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and JetBlue 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.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,914 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,049 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 $178. Other airlines that can offer you cheap pricing are United Airlines, from $179, and Spirit Airlines, from $191. American Airlines is currently priced 35% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $87. Users have also found prices from $111 and $178 on JetBlue and Delta, respectively.

  • 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 - Baltimore/Washington or Philadelphia - Washington, D.C. Reagan-National.

  • 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, August is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. (average of $241). Flying from Philadelphia to Washington, D.C. in March is currently the most expensive (average of $290). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Alternative routes for Philadelphia to Washington, D.C.

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

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$159Average$239FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$302FlexibilityNo cancel feeOn-time69%

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