PHL - WAS

$89 Find Cheap Flights from Philadelphia to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Washington, D.C. departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Washington, D.C., as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$151
Frontier
Wed 5/13Mon 5/18
PHL - IAD • 1 stop
Cheapest non-stop
$218
American Airlines
Thu 4/30Mon 5/4
PHL - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy is ideal for budget travelers.
DCA is the most convenient airport for downtown D.C.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $151 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 1h 14m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 30% average savings
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $481 (round-trip)
Shortest trip • 4h 49m (one-way)
Insights
Insights
Insights
Insights
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Philadelphia to Washington, D.C. (PHL-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Washington, D.C.

Wed, May 13 - Mon, May 18
Frontier Logo
5:05 am - 12:36 am
PHL
-
IAD
19h 31m
1 stop
Frontier Logo
9:51 am - 8:10 am
IAD
-
PHL
22h 19m
1 stop
$151Frontier
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
5:32 pm - 8:28 am
PHL
-
BWI
14h 56m
1 stop
Multiple Airlines Logo
5:49 pm - 9:57 pm
BWI
-
PHL
28h 08m
1 stop
$169Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
5:32 pm - 8:28 am
PHL
-
BWI
14h 56m
1 stop
Frontier Logo
5:49 pm - 7:41 am
BWI
-
PHL
13h 52m
2 stops
$180Frontier
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
9:10 pm - 11:19 am
PHL
-
BWI
38h 09m
2 stops
Multiple Airlines Logo
9:21 pm - 9:49 am
BWI
-
PHL
12h 28m
1 stop
$183Multiple Airlines
Wed, Apr 15 - Wed, Apr 15
JetBlue Logo
6:00 am - 11:10 am
PHL
-
DCA
5h 10m
1 stop
JetBlue Logo
1:20 pm - 5:38 pm
DCA
-
PHL
4h 18m
1 stop
$195JetBlue
Tue, Apr 28 - Tue, May 5
JetBlue Logo
8:25 am - 3:42 pm
PHL
-
DCA
7h 17m
1 stop
JetBlue Logo
10:00 am - 5:38 pm
DCA
-
PHL
7h 38m
1 stop
$199JetBlue
Tue, Apr 28 - Tue, May 5
American Airlines Logo
3:20 pm - 4:40 pm
PHL
-
DCA
1h 20mnonstop
American Airlines Logo
1:45 pm - 3:00 pm
DCA
-
PHL
1h 15mnonstop
$218American Airlines
Thu, May 14 - Mon, May 25
United Airlines Logo
7:45 pm - 8:55 pm
PHL
-
IAD
1h 10mnonstop
United Airlines Logo
8:35 am - 9:45 am
IAD
-
PHL
1h 10mnonstop
$219United Airlines
Sat, Apr 11 - Sat, Apr 18
American Airlines Logo
8:20 pm - 9:35 pm
PHL
-
DCA
1h 15mnonstop
American Airlines Logo
1:44 pm - 2:59 pm
DCA
-
PHL
1h 15mnonstop
$219American Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
7:45 pm - 8:55 pm
PHL
-
IAD
1h 10mnonstop
United Airlines Logo
12:55 pm - 2:10 pm
IAD
-
PHL
1h 15mnonstop
$239United Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Washington, D.C. flights

Get data-powered insights and trends into flights from Philadelphia to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Philadelphia to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Philadelphia to Washington, D.C. costs $229 on the route between Philadelphia (PHL) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 30% cheaper than other Philadelphia-Washington, D.C. routes. The most popular route is between Philadelphia (PHL) and Washington, D.C. Dulles Intl Airport (IAD).

What’s the cheapest day of the week to fly from Philadelphia to Washington, D.C.?

The average price of all round-trip flights from Philadelphia to Washington, D.C. clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington, D.C. on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Philadelphia to Washington, D.C.. For your return ticket, we recommend flying on a Friday and avoiding Tuesdays for the best deals.

Can I save money by flying with a layover from Philadelphia to Washington, D.C.?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $369 on average.

Expert advice

Expert advice for your flight from Philadelphia to Washington, D.C.

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, DCA and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and PHL

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonNovember
Cheapest flight$89
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Philadelphia to Baltimore

When to book flights from Philadelphia to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Philadelphia to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Washington, D.C.

  • What is the cheapest flight from Philadelphia to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Philadelphia to Washington, D.C. was $89 for a one-way ticket and $151 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Washington, D.C.?

    No, a passport isn't needed to fly from Philadelphia to Washington, D.C.. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Philadelphia to Washington, D.C.?

    Philadelphia is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Philadelphia from Philadelphia and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to Washington, D.C.?

    All the following airlines offer inflight Wi-Fi service on the Philadelphia to Washington, D.C. flight route: American Airlines, Iberia, Finnair, British Airways, Delta, JetBlue, and Alaska Airlines.

  • Which aircraft models fly most regularly from Philadelphia to Washington, D.C.?

    The Airbus A321neo is the aircraft model that flies most regularly on the Philadelphia to Washington, D.C. flight route.

  • Which airline alliances offer flights from Philadelphia to Washington, D.C.?

    oneworld, and Star Alliance are the airline alliances operating flights between Philadelphia and Washington, D.C., with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Philadelphia to Washington, D.C.?

    There are nonstop flights from Philadelphia to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from Philadelphia to Washington, D.C., United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Washington, D.C. are United Airlines and American Airlines. With an average price for the route of $259 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $244 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Philadelphia to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Philadelphia to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $364 or less one-way and $418 or less round-trip.

Prefer to fly direct from Philadelphia to Washington, D.C.?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to Washington, D.C..
Find which airlines fly direct from Philadelphia Airport to Washington, D.C., which days they fly and book direct flights.

Direct departures

Philadelphia to Washington, D.C.

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Washington, D.C. to Philadelphia

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top airlines flying from Philadelphia to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9427 reviews
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
Airline reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

6.0 GoodOlga, Mar 2026
FRA - IAD
Read more United Airlines reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Everything you need to know for your flight from Philadelphia to Washington, D.C.

Information on your arrival and departure airports

Compare transportation modes for Philadelphia to Washington, D.C.

Transportation modeAverage priceAverage duration
Flights$1,0231h 10m
Trains$282h 04m
Buses$470h 00m