PHL - WAS

$86 Find Cheap Flights from Philadelphia to Washington, D.C. - Compare and Save

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 10/27. 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

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Everything you should know

Cheapest round-trip
$136
Typical prices: $356-$413
Frontier
Tue 11/3Sat 11/14
PHL - IAD • 1 stop
Cheapest non-stop
$249
Typical prices: $345-$618
United Airlines
Fri 10/30Mon 11/2
PHL - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American Basic Economy suits carry-on-only trips; Main Cabin Extra adds early boarding.
For Washington, DCA is the most convenient airport, just 4 miles from downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $136 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 1h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 24% average savings
Most popular
Insights
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We hope you love your trip to Washington, D.C.!
Flight Deals
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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.

Tue, Nov 3 - Sat, Nov 14
Frontier Logo
5:28 pm - 12:28 am
PHL
-
IAD
7h 00m
1 stop
Frontier Logo
7:00 am - 1:12 pm
IAD
-
PHL
6h 12m
1 stop
$136Frontier
Tue, Nov 10 - Wed, Nov 11
Frontier Logo
9:14 am - 5:36 pm
PHL
-
IAD
8h 22m
1 stop
Frontier Logo
9:16 pm - 7:36 am
IAD
-
PHL
10h 20m
1 stop
$144Frontier
Tue, Nov 10 - Wed, Nov 11
Frontier Logo
12:43 pm - 6:36 pm
PHL
-
BWI
5h 53m
1 stop
Frontier Logo
9:20 pm - 7:36 am
BWI
-
PHL
10h 16m
1 stop
$166Frontier
Tue, Aug 25 - Tue, Sep 1
Frontier Logo
4:45 pm - 5:14 pm
PHL
-
IAD
24h 29m
1 stop
Frontier Logo
6:20 am - 10:33 pm
IAD
-
PHL
16h 13m
1 stop
$185Frontier
Tue, Aug 25 - Tue, Sep 1
Frontier Logo
4:45 pm - 10:52 pm
PHL
-
IAD
6h 07m
1 stop
Frontier Logo
6:20 am - 12:26 pm
IAD
-
PHL
6h 06m
1 stop
$186Frontier
Sat, Sep 19 - Sat, Sep 26
Frontier Logo
12:40 pm - 12:10 am
PHL
-
IAD
11h 30m
1 stop
Frontier Logo
7:50 am - 6:14 pm
IAD
-
PHL
10h 24m
1 stop
$187Frontier
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
7:40 pm - 9:01 pm
PHL
-
IAD
1h 21mnonstop
United Airlines Logo
1:05 pm - 2:20 pm
IAD
-
PHL
1h 15mnonstop
$249United Airlines
Sun, Aug 23 - Sat, Aug 29
United Airlines Logo
7:40 pm - 8:59 pm
PHL
-
IAD
1h 19mnonstop
United Airlines Logo
8:30 am - 9:43 am
IAD
-
PHL
1h 13mnonstop
$249United Airlines
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
8:19 pm - 9:30 pm
PHL
-
DCA
1h 11mnonstop
American Airlines Logo
1:44 pm - 2:54 pm
DCA
-
PHL
1h 10mnonstop
$249American Airlines
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
3:51 pm - 5:00 pm
PHL
-
DCA
1h 09mnonstop
American Airlines Logo
5:10 pm - 6:21 pm
DCA
-
PHL
1h 11mnonstop
$249American 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 $284 on the route between Philadelphia (PHL) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 24% 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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday 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.

What is the cheapest month to fly from Philadelphia to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Washington, D.C. is September, where tickets cost $179 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $605 and $564 respectively.

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 $439 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

Cheapest flight

$86
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 5 days, the lowest price for a flight from Philadelphia to Washington, D.C. was $86 for a one-way ticket and $136 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, Iberia, Finnair, British Airways, and JetBlue 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 Canadair (Bombardier) Regional Jet 900 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 $294 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 $259 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 $313 or less one-way and $549 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 10053 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

2.0 MediocreDilen, Jul 2026
EWR - DCA
Read more United Airlines reviews

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

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.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

A three (3) hour flight should have meal service in First Class, not just potato chips!

Flight was on time, crew were excellent. For some reason our originally selected seats were changed. We had to re-choose our seats when we checked in online and options were limited. One of our two checked bags we placed on the wrong carousel. It was only be shear luck that I saw it. That cost us 20 minutes of wasted time. So much for the “priority” tags. They are meaningless, and have been ever since they were implemented. I wish you would do the save some money and stop using them.

Very good, boarded and took off on time and landed early

Boarding and Delays The boarding process for my American Airlines flight from Copenhagen to Philadelphia was a bit tricky. We experienced a gate change that required a long walk to a new area of the airport. Additionally, boarding was not via a jet bridge; we had to take a shuttle bus to the plane and then carry our luggage up the stairs ourselves. Furthermore, the bag drop didn't open until about 12:20 PM, which was only three hours before our scheduled departure. This meant I couldn't drop my bag off early and had to wait outside of security in order to drop off my bag and use the kiosk. The bag drop self-service kiosks also didn't open until about 12:00 PM when an American Airlines employee unlocked them so that we could print out our boarding passes and bag tags, which further created a backlog. The flight was delayed by over an hour because we had to wait for one of the tires on the plane to be changed. Flight Attendant Professionalism On a positive note, the flight attendant was very professional when handling a passenger who was sitting in the wrong seat. Even though the passenger was persistent and reluctant to move, the flight attendant calmly ensured the assigned passenger could take their seat. Kudos to the flight attendant for keeping his calm and composure, not allowing the issue to escalate, and handling it well under pressure while a line of passengers waited in the aisle to board. In-Flight Service The in-flight service was also fast, prompt, and efficient, although service had to be suspended for the last two hours of the flight due to weather and turbulence, which was outside of the crew's control. Limited Flight Options Please note that American Airlines only operates one flight per day in and out of Copenhagen. This means there are limited options available if your flight is delayed or canceled, which is something to take into consideration when booking.

Quick flight again no one illness why there were multiple delays and changing of the gate number.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

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$1,8991h 09m
Trains$752h 06m