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Cheap Flights from Philadelphia (PHLA) to Washington D.C. (WASA)

Compare Philadelphia to Washington D.C. flight deals

Find the cheapest month or even day of the year to fly to Washington D.C.

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Flight deals from Philadelphia to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Washington D.C.? If you want to travel next month, return fares start from $219. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$166 per passenger.Departing Mon, 28 Sep, returning Wed, 30 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 28 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Wed, 30 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $166, select.
Washington D.C..$219 per passenger.Departing Tue, 11 Aug, returning Tue, 18 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 11 Aug, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 18 Aug, arriving in Philadelphia International.Price includes taxes and charges.From $219, select.
Washington D.C..$281 per passenger.Departing Mon, 5 Oct, returning Mon, 12 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 5 Oct, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 12 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $281, select.
Washington D.C..$294 per passenger.Departing Thu, 13 Aug, returning Thu, 8 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 13 Aug, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 8 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $294, select.
Washington D.C..$340 per passenger.Departing Thu, 5 Nov, returning Thu, 26 Nov.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Thu, 5 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 26 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Fri, 11 Sep, returning Fri, 9 Oct.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Fri, 11 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Fri, 9 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Wed, 13 Jan, returning Wed, 27 Jan.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Wed, 13 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 27 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Thu, 3 Sep, returning Tue, 8 Sep.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Thu, 3 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 8 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Fri, 16 Oct, returning Thu, 5 Nov.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Fri, 16 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 5 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Tue, 11 Aug, returning Tue, 18 Aug.Return flight with American Airlines.Outbound direct flight with American Airlines departs from Philadelphia International on Tue, 11 Aug, arriving in Washington Ronald Reagan.Inbound direct flight with American Airlines departs from Washington Ronald Reagan on Tue, 18 Aug, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Wed, 7 Oct, returning Wed, 14 Oct.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Wed, 7 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 14 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Tue, 15 Sep, returning Tue, 9 Mar.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Tue, 15 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 9 Mar, arriving in Philadelphia International.Price includes taxes and charges.From $340, select.
Washington D.C..$356 per passenger.Departing Sat, 29 Aug, returning Sun, 6 Sep.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Sat, 29 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 6 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $356, select.
Washington D.C..$418 per passenger.Departing Thu, 30 Jul, returning Thu, 6 Aug.Return flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departs from Philadelphia International on Thu, 30 Jul, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Thu, 6 Aug, arriving in Philadelphia International.Price includes taxes and charges.From $418, select.
Washington D.C..$457 per passenger.Departing Sat, 19 Dec, returning Tue, 12 Jan.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Sat, 19 Dec, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 12 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $457, select.
Washington D.C..$477 per passenger.Departing Thu, 13 Aug, returning Thu, 8 Oct.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Thu, 13 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 8 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $477, select.

Find the cheapest month to fly from Philadelphia to Washington D.C.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Washington D.C. flights are currently cheapest in September.
Jul
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Aug
from $219
Sep
from $166
Oct
from $281
Nov
from $340
Dec
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Jan
from $340
Feb
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Mar
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Apr
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May
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Jun
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Direct flights from Philadelphia to Washington D.C.

Alternative Philadelphia to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from Philadelphia to Washington D.C.? You could fly into the following airports instead.

Washington Ronald Reagan

5km from central Washington D.C.
Closest
from $340
Search flights

Washington Dulles

37km from central Washington D.C.
from $240
Search flights

Baltimore Washington International

44km from central Washington D.C.
Cheapest
from $166
Search flights

Philadelphia to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$166
Cheapest month to flySeptember
Average flight time1 hr, 9 mins
Most popular airlineUnited
Average flights per week180

Finding cheap flights from Philadelphia to Washington D.C.: Frequently asked questions

There are 3 airports in Washington D.C.: Washington Ronald Reagan, Washington Dulles and Baltimore Washington International.
The best price we found for a return flight from Philadelphia to Washington D.C. is $166. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 9 minutes is the average flight time from Philadelphia to Washington D.C..
United, American Airlines and GoJet Airlines fly direct from Philadelphia to Washington D.C..
As of July 2026, there are 180 flights per week flying from Philadelphia to Washington D.C..
The cheapest month to fly from Philadelphia to Washington D.C. is usually September.
If you're flying from Philadelphia, the cheapest airport near Washington D.C. is Baltimore Washington International – which is 43.7 km away from the centre of Washington D.C.. We've found flights into this airport from $166.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Washington D.C. on Monday, 28 September 2026.
Yes – the average flight time is 1 hour and 9 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington D.C. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 25°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
The cheapest airline that flies to Washington D.C. is Frontier Airlines. And the cheapest airline that flies to Washington Dulles Airport is United.

How to find cheap flights to Washington D.C. (WASA) from Philadelphia (PHLA) in 2024

Looking for cheap tickets from Philadelphia to Washington D.C.? Return tickets start from $166 and one-way flights to Washington D.C. from Philadelphia start from $82


Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets.
  • Compare flight deals to Washington D.C. from Philadelphia from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Washington D.C. start from $82 one-way.
  • Flex your dates to find the best PHLA-WASA ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Washington D.C. from Philadelphia.
  • Set up a Price Alert. You can easily track the fare of your cheap flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Philadelphia and Washington D.C.? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results. Airlines that fly direct include: United
    American Airlines
    GoJet Airlines
    PSA Airlines
    Mesa Airlines
    Republic Airways
    Copa
    Avianca
  • Find the cheapest Business class flights from Philadelphia and Washington D.C.. We scour the internet for the best Business, Premium Economy and First Class flight fares to Washington D.C., too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Philadelphia to Washington D.C. flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Philadelphia and Washington D.C. whenever you want.

Combine your flight to Washington D.C. from Philadelphia with hotels and car hire

Once you've secured your cheap flight ticket from Philadelphia to Washington D.C., discover the best prices and exclusive rates for hotels in Washington D.C. or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


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Plan the rest of your trip from Philadelphia to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.