$91 Find Cheap Flights from Philadelphia to District of Columbia

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 District of Columbia departing on 10/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to District of Columbia, 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 District of Columbia, as well as popular online travel agencies
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Cheap Flights from Philadelphia to District of Columbia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Washington, D.C.
Baltimore1 stop$153
Washington, D.C.
Baltimore1 stop$153

Book Cheap Philadelphia to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to District of Columbia 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 District of Columbia

Tue, Oct 14 - Tue, Oct 21
Frontier Logo
10:22 am - 7:46 pmPHL-IAD
9h 24m1 stop
Frontier Logo
9:00 am - 6:44 pmIAD-PHL
9h 44m1 stop
$153Frontier
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Thu, Oct 16 - Thu, Oct 23
Frontier Logo
5:20 am - 3:38 pmPHL-IAD
10h 18m1 stop
Frontier Logo
1:07 pm - 10:31 pmIAD-PHL
9h 24m1 stop
$154Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12
United Airlines Logo
10:32 am - 11:46 amPHL-IAD
1h 14mnonstop
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
$179United Airlines
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Thu, Oct 9 - Mon, Oct 13
American Airlines Logo
4:52 pm - 5:56 pmPHL-DCA
1h 04mnonstop
American Airlines Logo
6:10 am - 7:21 amDCA-PHL
1h 11mnonstop
$179American Airlines
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Tue, Oct 14 - Sat, Oct 18
American Airlines Logo
6:45 pm - 7:59 pmPHL-DCA
1h 14mnonstop
American Airlines Logo
12:54 pm - 1:59 pmDCA-PHL
1h 05mnonstop
$180American Airlines
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Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:58 pm - 9:05 pmPHL-IAD
1h 07mnonstop
United Airlines Logo
8:30 am - 9:46 amIAD-PHL
1h 16mnonstop
$189United Airlines
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Tue, Oct 14 - Tue, Oct 21
JetBlue Logo
11:45 am - 6:06 pmPHL-DCA
6h 21m1 stop
JetBlue Logo
1:35 pm - 9:55 pmDCA-PHL
8h 20m1 stop
$231JetBlue
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Fri, Sep 26 - Mon, Sep 29
Multiple Airlines Logo
6:45 am - 12:15 amPHL-IAD
17h 30m2 stops
Multiple Airlines Logo
7:14 pm - 1:02 pmIAD-PHL
17h 48m1 stop
$240Multiple Airlines
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Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
5:53 pm - 7:46 pmPHL-IAD
25h 53m1 stop
Multiple Airlines Logo
9:00 am - 11:29 pmIAD-PHL
14h 29m2 stops
$248Multiple Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
JetBlue Logo
10:20 am - 4:47 pmPHL-DCA
6h 27m1 stop
JetBlue Logo
10:41 am - 7:00 pmDCA-PHL
8h 19m1 stop
$263JetBlue
Find Deal
Booking Insights

KAYAK's insights & trends for Philadelphia to District of Columbia flights

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

What is the cheapest Philadelphia to District of Columbia flight route?

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

The cheapest ticket to District of Columbia from Philadelphia found in the last 72 hours was to Washington, D.C., at $314 round-trip. The most popular route is from Philadelphia (PHL) to Washington, D.C. Dulles Intl Airport (IAD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $350.

What’s the cheapest day of the week to fly from Philadelphia to District of Columbia?

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

If your flying dates are flexible, you should consider flying to District of Columbia on a Wednesday, 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 District of Columbia. For your return ticket, we recommend flying on a Friday and avoiding Saturdays for the best deals.

Good to know

Low seasonNovember
Cheapest flight$91
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Philadelphia to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Philadelphia to District of Columbia?

    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 District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to District of Columbia 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 District of Columbia?

    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 from Philadelphia to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to District of Columbia?

    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 from Philadelphia to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the morning, when round-trip flights cost $636 on average. Morning departures are around 15% cheaper than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,196.

Reviews of the top airlines flying from Philadelphia to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to District of Columbia. 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 District of Columbia? 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 8929 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

8.0 ExcellentAnonymous, Sep 2025PHL - FRA
Read more United Airlines reviews

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

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!

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Everything you need to know for your flight from Philadelphia to District of Columbia

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