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Cheap IAD to PHL Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Washington to Philadelphia route information

Origin Airport Washington Dulles Intl.
Destination Airport Philadelphia Intl.
Airlines Serving American Airlines, Delta, United
Flight Price $231
Distance 133 mi

Atlantic City




Cheap IAD to PHL Flights

  • How long does it take to fly from Dulles to Philadelphia?

    United Airlines currently holds the fastest travel time with 57 minutes. So, you would arrive in Philadelphia at 11:12 PM EDT if you left Dulles at 10:15 PM EDT.
  • Which airline has the least delays from Dulles to Philadelphia?

    Booking with Southwest Airlines means you will arrive to Philadelphia pretty close to the time your ticket states. In fact, this timely airline has a 100% on-time average. It never hurts to be prepared. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.
  • What is the cheapest airline flying from Dulles to Philadelphia?

    American Airlines is offering the best deal at $288. Better look quickly because prices range all the way up to $1,344 over the next three months.
  • How long is the flight from IAD to PHL?

    United Airlines can get you there in 57 minutes. For example, if you were to leave Dulles at 10:15 PM EDT, you would arrive in Philadelphia at 11:12 PM EDT. Giving you enough time if you want to catch up on your reading before you touch down.
  • What is the cheapest day to fly to Philadelphia?

    Tickets are currently $288, 51% less than the average price. As of Oct 14th, the cheapest day to fly from Dulles to Philadelphia is Nov 2nd.
  • How much is a plane ticket to Philadelphia (PHL) from Dulles (IAD)?

    Prices vary from $288 to $1,344. Booking far in advance can usually help you get the cheapest price. Prices are usually less the further out you book.
  • Can I change the date of my flight?

    Yes, you can change your departure date. If you would like to save some funds in doing so, the lowest-cost day to fly in October is Saturday. You may be thinking you're missing out leaving a day early, but we think that you are just adding saving for a future getaway. A penny saved is a vacation earned.

Sterling to Philadelphia Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Sterling to Philadelphia will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Philadelphia.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at, we’ll pair you up with IAD to PHL flights that won’t make your bank account wince. Ready to temporarily leave behind Sterling for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to PHL with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Package Disclaimer

*Savings amount equal to 100% when flight + hotel are booked together. Prices based on searches conducted by fellow shoppers within the past 24 hours. There is no guarantee that these prices will be in effect at the time of your search. Vacation package savings are based on comparison to prices on of the same components booked separately. Savings vary based on origin/destination, length of trip, stay dates and travel partners, and aren't available on all packages.