PHL - WAS

$66 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 1/17. 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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Everything you should know

Cheapest round-trip
$132
Frontier
Wed 1/7Wed 1/14
PHL - IAD • 1 stop
Cheapest non-stop
$179
Typical prices: $171-$191
American Airlines
Mon 2/16Wed 3/4
PHL - DCA • Non-stop
Our travelers' advice
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
Video guide: How to find cheap flights to Washington, D.C.
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Top airlines
Frontier
Cheapest • from $132 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
PHL-DCA
Cheapest • 34% average savings
PHL-IAD
Most popular
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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, Jan 7 - Wed, Jan 14
Frontier Logo
7:12 pm - 11:28 am
PHL
-
IAD
16h 16m1 stop
Frontier Logo
6:00 am - 4:28 pm
IAD
-
PHL
10h 28m1 stop
$132Frontier
Tue, Jan 6 - Tue, Jan 13
Frontier Logo
7:11 pm - 10:38 am
PHL
-
BWI
15h 27m1 stop
Frontier Logo
6:05 am - 12:52 am
BWI
-
PHL
18h 47m1 stop
$133Frontier
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
8:54 pm - 11:44 pm
PHL
-
BWI
26h 50m1 stop
Multiple Airlines Logo
1:00 pm - 11:50 pm
BWI
-
PHL
10h 50m1 stop
$138Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
5:30 am - 12:07 pm
PHL
-
BWI
6h 37m1 stop
Multiple Airlines Logo
1:54 pm - 10:50 pm
BWI
-
PHL
8h 56m1 stop
$142Multiple Airlines
Mon, Feb 2 - Thu, Feb 5
JetBlue Logo
8:40 am - 4:19 pm
PHL
-
DCA
7h 39m1 stop
JetBlue Logo
1:00 pm - 6:23 pm
DCA
-
PHL
5h 23m1 stop
$151JetBlue
Wed, Jan 7 - Wed, Jan 14
JetBlue Logo
8:40 am - 1:20 pm
PHL
-
DCA
4h 40m1 stop
JetBlue Logo
1:00 pm - 6:23 pm
DCA
-
PHL
5h 23m1 stop
$152JetBlue
Tue, Jan 6 - Tue, Jan 13
United Airlines Logo
10:30 am - 11:47 am
PHL
-
IAD
1h 17mnonstop
United Airlines Logo
12:55 pm - 2:10 pm
IAD
-
PHL
1h 15mnonstop
$179United Airlines
Thu, Jan 1 - Sun, Jan 4
American Airlines Logo
7:44 pm - 8:55 pm
PHL
-
DCA
1h 11mnonstop
American Airlines Logo
1:44 pm - 2:44 pm
DCA
-
PHL
1h 00mnonstop
$180American Airlines
Mon, Dec 22 - Tue, Jan 6
American Airlines Logo
3:35 pm - 4:35 pm
PHL
-
DCA
1h 00mnonstop
American Airlines Logo
1:44 pm - 2:50 pm
DCA
-
PHL
1h 06mnonstop
$194American Airlines
Wed, Dec 24 - Sun, Dec 28
United Airlines Logo
10:39 am - 11:55 am
PHL
-
IAD
1h 16mnonstop
United Airlines Logo
10:20 pm - 11:30 pm
IAD
-
PHL
1h 10mnonstop
$209United 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.

Find cheap flights to Washington, D.C.
Find cheap flights to Washington, D.C.

Planning a trip from Philadelphia to Washington, D.C.? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 $179 on the route between Philadelphia (PHL) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 34% 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, Monday 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 Saturdays 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 $284 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.
Airlines
American Airlines

Consider Basic Economy for budget travel with carry-on only and fixed plans.


Main Cabin Extra offers early boarding and complimentary drinks for a small fee.

United Airlines

United First provides ample legroom, up to seven inches more than economy.


Purchase Priority Boarding to ensure overhead bin space for carry-ons.

Airports
PHL

PHL offers quick access to downtown via SEPTA's Airport Regional Rail Line, taking about 30 minutes to Center City.

DCA

DCA is just 4 miles from downtown, making it the most convenient airport for quick access to the city.

IAD

The Silver Line Metro offers a convenient 50-minute ride from IAD to downtown D.C.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and PHL

Harriet Baskas

Harriet Baskas

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, DCA and IAD

Stefanie Waldek

Stefanie Waldek

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.

Read more

Good to know

Low seasonNovember
Cheapest flight$66
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 5% 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 $66 for a one-way ticket and $132 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.?

    American Airlines, Japan Airlines, Delta, Finnair, and Iberia offer inflight Wi-Fi service on the Philadelphia to Washington, D.C. flight route.

  • 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 $239 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 7.2.

  • 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 $283 or less one-way and $452 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 9095 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

6.0 GoodClaudia, Dec 2025
GUA - IAD
Read more United Airlines reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

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

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

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$1,3241h 00m
Trains$982h 03m
Buses$593h 37m