Cheap Flights from Washington D.C. to Philadelphia International

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Flight deals from Washington D.C. to Philadelphia International

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

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

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

Direct flights from Washington D.C. to Philadelphia International

Washington D.C. to Philadelphia International: Alternative routes

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

Washington D.C. to Philadelphia: Flight information

The things to know before you go.
Cheapest flight foundR 2,129
Cheapest month to flySeptember
Average flight time1 hr, 9 mins
Most popular airlineAmerican Airlines
Average flights per week139

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

The best price we found for a return flight from Washington D.C. to Philadelphia International is R 3,174. 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 Washington D.C. to Philadelphia International.
American Airlines, United and Republic Airways fly direct from Washington D.C. to Philadelphia International.
As of July 2025, there are 139 flights per week flying from Washington D.C. to Philadelphia International.
The cheapest month to fly from Washington D.C. to Philadelphia International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Philadelphia International Airport on Thursday, 4 September 2025.
Yes – the average flight time is 1 hour and 9 minutes.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Philadelphia International is American Airlines .

Travelling from Washington DC to Philadelphia International Airport (PHL): What you need to know

  • Begin planning your trip by looking up the best departure point for your flight from Washington DC to Philadelphia International Airport (PHL). Explore your options for leaving from Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD), the city's main airports.

  • Take a direct Washington DC to Philadelphia International Airport flight and you'll be travelling for an average of 1 hour 5 minutes.

  • Philadelphia's timezone is UTC-4, which is the same as Washington DC. Philadelphia International Airport is located in Philadelphia.

  • With 25 direct weekly flights between the two airports, Ronald Reagan National Airport (DCA) to Philadelphia International Airport (PHL) is the busiest route. American Airlines operates the earliest flight at 6:10am. If you prefer to get more out of your day before leaving, the last departure from DCA to PHL is with American Airlines at 10:55pm.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your flight from Washington DC to PHL.

  • With more people on the move during high season, it's smart to get to your terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will allow extra time for delays.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Enjoy an uninterrupted journey from Ronald Reagan National Airport (DCA). Direct flights from Washington DC to Philadelphia International Airport (PHL) are available from here.

  • American Airlines is a popular airline that operates direct flights from Washington DC to Philadelphia International Airport leaving from DCA.

  • The majority of passengers choose to fly with American Airlines between DCA and PHL.

  • American Airlines is the most punctual carrier operating on this route, with 74.32% of its services reaching their destination on time.

  • The journey from central Washington DC to DCA takes around 45 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 8 kilometres in 15 minutes or so, depending on traffic conditions.

  • Want a relaxed start to your holiday? Stay near Ronald Reagan National Airport. Whether you're boarding an early flight from Washington DC to Philadelphia International Airport or just don't want to be rushed, these hotels offer the perfect solution:

  • When it comes to Ronald Reagan National Airport's on-time performance, 76.44% of flights stick to their scheduled arrival time.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Looking to fly out of Washington Dulles International Airport (IAD)? Direct Washington DC to Philadelphia International Airport (PHL) plane tickets are available from here.

  • United Airlines operates direct flights from Washington DC to PHL out of IAD. Book your favourite window seat and arrive at your destination in one go.

  • On the IAD to PHL route, United Airlines is the go-to airline for most travellers on this route.

  • With 75.43% of its services landing on schedule, United Airlines is the most punctual carrier flying between Washington Dulles International Airport and Philadelphia International Airport.

  • You can reach IAD from the centre of Washington DC in approximately 50 minutes by car (depending on traffic conditions). The journey on public transport takes roughly 1 hour 10 minutes to travel the 56 kilometres or so.

  • Kick off your holiday early with an additional night away from home. Before catching your Washington DC to PHL flight, kick back in one of these hotels close to Washington Dulles International Airport:

  • When it comes to keeping flights on track, Washington Dulles International Airport has an on-time arrival performance of 74.39%.

  • IAD is located at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • From the centre of Washington DC, BWI is around 48 kilometres away. It'll take you roughly 50 minutes to get to the airport by car and 1 hour 30 minutes or so if you take public transport.

  • Skip the rush on your departure day — stay close to Baltimore/Wash International Thurgood Marshall Airport and know you'll be at your gate with time to spare. Get settled at one of these hotels the day before if you've booked an early Washington DC to Philadelphia International Airport flight:

  • The on-time performance rating of BWI is 77.13%. In other words, that's how frequently flights departing this airport arrive at their destination as planned.

About Philadelphia International Airport (PHL)

Getting from Philadelphia International Airport (PHL) to central Philadelphia

  • Philadelphia International Airport is around 11 kilometres from central Philadelphia. How long it takes to get to the centre by car hire or cab depends on the time of day. Do a little research before your trip.

  • It'll take around 45 minutes if you're travelling by public transport.

How to find the cheapest flights from Washington DC to Philadelphia International Airport (PHL)

  • At the moment, R 2,129 is the best price we've found for a one-way ticket from Washington DC to Philadelphia International Airport. The cheapest price for a return flight is R 3,174. Remember fares can change due to availability at the time of booking.

  • Don't leave things to the last minute. You're more likely to find cheap flights from Washington DC to PHL if you book ahead. Airlines often have some amazing early bird deals.

  • The 'Whole month' search tool will show you the cheapest Washington DC to Philadelphia International Airport tickets across each month. It's a great way to snap up a bargain if your travel dates aren't set in stone.

  • You don't need to search every day to find out if fares have dropped when you create a Price Alert. We'll let you know when there's a better deal on plane tickets from Washington DC to PHL.

  • Tailor your flights using filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Washington DC to Philadelphia International Airport.

The best time to fly from Washington DC to Philadelphia International Airport (PHL)

  • February is the quietest month for flights from Washington DC to Philadelphia International Airport (PHL), while August is the most popular. Figure out the best time to go to Philadelphia based on whether you want a laid-back vibe or a more bustling atmosphere.

  • When booking your Washington DC to PHL plane ticket, consider the type of weather you enjoy. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

  • January has temperatures of between -7ºC (19ºF) and 9ºC (48ºF). Search for cheap tickets from Washington DC to Philadelphia International Airport around that time if you like travelling in cooler conditions.

More about Philadelphia

Explore more of the United States

  • New York is just one of the many places in the United States waiting to be discovered after you've seen Philadelphia. Around 137 kilometres away to the north-east, its top attractions include Central Park, Manhattan Skyline and Statue of Liberty.

  • If you're ready to explore another major destination in the United States, consider Baltimore, about 137 kilometres south-west of Philadelphia. Baltimore Aquarium, National Aquarium and Washington Monument and Mount Vernon Place are among its highlights.

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