$68 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 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 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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Flight Deals

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

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
Fri, Jan 9 - Fri, Jan 16
Frontier Logo
9:45 am - 1:16 pm
PHL
-
IAD
27h 31m1 stop
Frontier Logo
10:08 pm - 10:46 am
IAD
-
PHL
12h 38m1 stop
$134Frontier
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
8:43 pm - 7:55 am
PHL
-
IAD
11h 12m1 stop
Multiple Airlines Logo
6:00 am - 6:46 pm
IAD
-
PHL
12h 46m1 stop
$149Multiple 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
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
8:43 pm - 7:55 am
PHL
-
IAD
11h 12m1 stop
Multiple Airlines Logo
6:00 am - 4:49 pm
IAD
-
PHL
10h 49m2 stops
$159Multiple Airlines
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 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 $179 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 $366.

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, Monday 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$68
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 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 $635 on average. Morning departures are around 19% 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 $1,166.

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 9095 reviews
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
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 District of Columbia

Information on your arrival and departure airports