Cheap Flights from Philadelphia to Washington Dulles

Compare Philadelphia to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

Book the best Washington Dulles fare with no extra fees

Flight deals from Philadelphia to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Washington Dulles? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Philadelphia to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Washington Dulles flights are currently cheapest in November.

Direct flights from Philadelphia to Washington Dulles

Philadelphia to Washington Dulles: Alternative routes

Compare routes from Philadelphia to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Philadelphia to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 9,892
Cheapest month to flyNovember
Average flight time1 hr, 11 mins
Most popular airlineUnited
Average flights per week73

Finding cheap flights from Philadelphia to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Philadelphia to Washington Dulles is ج.م.‏ 8,771. 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 11 minutes is the average flight time from Philadelphia to Washington Dulles.
United, CommutAir and Mesa Airlines fly direct from Philadelphia to Washington Dulles.
As of October 2024, there are 73 flights per week flying from Philadelphia to Washington Dulles.
The cheapest month to fly from Philadelphia to Washington Dulles is usually October 2024.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Washington Dulles Airport on Friday, 3 January 2025.
Yes – the average flight time is 1 hour and 11 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 Dulles 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.
The cheapest airline that flies to Washington Dulles is United .

How to find cheap flights to Washington Dulles from Philadelphia

Looking for cheap tickets from Philadelphia to Washington Dulles? 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 from Philadelphia to Washington Dulles. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Washington Dulles from Philadelphia from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best Philadelphia-Washington Dulles 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 Dulles from Philadelphia.
  • Set up a Price Alert. You can easily track the fare of your cheap Philadelphia-Washington Dulles 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 Dulles? 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.
  • Find the cheapest Business class flights from Philadelphia and Washington Dulles. We scour the internet for the best Business, Premium Economy and First Class flight fares to Washington Dulles, 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 Dulles 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.
  • Combine your flight to Washington Dulles from Philadelphia with hotels and car hire

    Once you've secured your cheap flight ticket from Philadelphia to Washington Dulles, discover the best prices and exclusive rates for hotels in Washington Dulles 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.


Prices shown on this page are estimated lowest prices only. Found in the last 45 days.