Washington, D.C.

$81+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — WAS
oct. 15 — oct. 221
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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 septiembre 15, 2025.

Round-trip from

$153
(Frontier)

One-way from

$81
(Spirit)

Popular in

December

Cheapest in

November

Average price

$299

Good round-trip deal

$365 or less

Good one-way deal

$154 or less
From Philadelphia to Washington, D.C. (WAS)
One-way flight from Philadelphia to Washington, D.C. (WAS)
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Philadelphia to Washington, D.C. (WAS).
Price to beat on a one-way flight from Philadelphia to Washington, D.C. (WAS).

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 septiembre 15, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:02 pmPHL - BWI
1 stop10h 51mFrontier
mar. 10/2111:19 amBWI - PHL
1 stop8h 45mFrontier
Deal found 9/14$153
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1410:22 amPHL - IAD
1 stop9h 24mFrontier
mar. 10/219:00 amIAD - PHL
1 stop9h 44mFrontier
Deal found 9/14$153
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/25:15 amPHL - BWI
1 stop5h 33mFrontier
dom. 10/59:59 pmBWI - PHL
1 stop11h 16mFrontier
Deal found 9/14$154
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/36:00 amPHL - BWI
1 stop10h 50mFrontier
dom. 10/59:59 pmBWI - PHL
1 stop11h 16mFrontier
Deal found 9/13$155
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/301:02 pmPHL - IAD
1 stop10h 27mFrontier
jue. 11/63:51 pmIAD - PHL
1 stop9h 38mFrontier
Deal found 9/15$161
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
mié. 10/85:33 amPHL - BWI
1 stop9h 15mSpirit Airlines
vie. 10/105:01 pmBWI - PHL
1 stop23h 45mSpirit Airlines
Deal found 9/15$175
This American Airlines deal was found by Cheapflights users on 9/13. 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.
jue. 10/94:52 pmPHL - DCA
Nonstop1h 04mAmerican Airlines
lun. 10/136:10 amDCA - PHL
Nonstop1h 11mAmerican Airlines
Deal found 9/13$179
This United Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 10/247:58 pmPHL - IAD
Nonstop1h 07mUnited Airlines
dom. 10/268:30 amIAD - PHL
Nonstop1h 16mUnited Airlines
Deal found 9/14$179
This American Airlines deal was found by Cheapflights users on 9/13. 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.
sáb. 10/49:36 amPHL - DCA
Nonstop1h 15mAmerican Airlines
dom. 10/56:00 amDCA - PHL
Nonstop1h 07mAmerican Airlines
Deal found 9/13$180
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
dom. 9/285:01 amPHL - IAD
1 stop16h 18mFrontier
jue. 10/28:59 pmIAD - PHL
1 stop17h 39mFrontier
Deal found 9/13$184
This American Airlines deal was found by Cheapflights users on 9/13. 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.
vie. 10/36:33 pmPHL - DCA
Nonstop1h 26mAmerican Airlines
dom. 10/56:00 amDCA - PHL
Nonstop1h 07mAmerican Airlines
Deal found 9/13$185
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/251:02 pmPHL - BWI
1 stop11h 07mFrontier
dom. 10/266:37 pmBWI - PHL
1 stop12h 53mFrontier
Deal found 9/15$186

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 septiembre 15, 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

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

jue. 10/16

6:10 am-3:27 pm

1 stop9h 17m

Baltimore/Washington

jue. 10/23

4:12 pm-12:59 am

1 stop8h 47m

$153

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

mar. 10/14

10:22 am-5:20 pm

1 stop6h 58m

Baltimore/Washington

mar. 10/21

11:19 am-8:04 pm

1 stop8h 45m

$153

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

jue. 10/30

1:02 pm-12:07 am

1 stop11h 05m

Baltimore/Washington

jue. 11/6

4:15 pm-12:19 am

1 stop8h 04m

$153

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

sáb. 10/11

1:02 pm-11:29 pm

1 stop10h 27m

Washington, D.C. Dulles Intl

sáb. 10/18

7:15 am-6:44 pm

1 stop11h 29m

$153

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

mar. 10/14

10:22 am-7:46 pm

1 stop9h 24m

Washington, D.C. Dulles Intl

mar. 10/21

9:00 am-6:44 pm

1 stop9h 44m

$153

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

jue. 10/2

5:15 am-10:48 am

1 stop5h 33m

Baltimore/Washington

dom. 10/5

9:59 pm-9:15 am

1 stop11h 16m

$154

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

vie. 10/3

6:00 am-4:50 pm

1 stop10h 50m

Baltimore/Washington

dom. 10/5

9:59 pm-9:15 am

1 stop11h 16m

$155

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

jue. 10/30

1:02 pm-11:29 pm

1 stop10h 27m

Washington, D.C. Dulles Intl

jue. 11/6

3:51 pm-1:29 am

1 stop9h 38m

$161

PhiladelphiaBaltimore

PHL - BWI

PHLBWI

Philadelphia

mié. 10/8

5:33 am-2:48 pm

1 stop9h 15m

Baltimore/Washington

vie. 10/10

5:01 pm-4:46 pm

1 stop23h 45m

$175

PhiladelphiaWashington, D.C.

PHL - DCA

PHLDCA

Philadelphia

mar. 10/14

6:45 pm-7:59 pm

Nonstop1h 14m

Washington, D.C. Reagan-National

mar. 10/21

12:54 pm-1:59 pm

Nonstop1h 05m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 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 $292). Flying from Philadelphia to Washington, D.C. in April is currently the most expensive (average of $337). 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 septiembre 15, 2025.

It’s typically best to fly out from Philadelphia to Washington, D.C. in the morning. Doing so could potentially save you 47% 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 Thursday evenings 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 septiembre 15, 2025.

The most flights from PHL to WAS are scheduled on a Friday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 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 septiembre 15, 2025.
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.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

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

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

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

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

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

Related info for your journey

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, American Airlines, and United Airlines fly from Philadelphia to Washington, D.C. in about 1h 07m. The time it takes to get you to your destination can typically vary by up to 8h 10m. 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 $159. Another airline that can offer you cheap pricing is United Airlines. American Airlines is currently priced 42% 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 $81. Users have also found prices from $113 and $116 on Frontier and JetBlue, respectively.

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

  • 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: Mesa Airlines (100%), Air Canada (93%), ANA (89%).

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

    On average you can expect to pay $1,010 for a flight from Philadelphia to Washington, D.C.. The cheapest flight overall is $203 while the most popular route, (Philadelphia - Washington, D.C. Dulles Intl) is currently priced at $179.

  • 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 $292). Flying from Philadelphia to Washington, D.C. in April is currently the most expensive (average of $337). 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
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

Browse thousands of different options on Cheapflights for your next trip

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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$159Average$221FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$344FlexibilityNo cancel feeOn-time69%

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