Cheap Flights from Philadelphia International to Washington D.C.

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Flight deals from Philadelphia International to Washington D.C.

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

Find the cheapest month to fly from Philadelphia International 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 International to Washington D.C. flights are currently cheapest in October.

Direct flights from Philadelphia International to Washington D.C.

Alternative Philadelphia International to Washington D.C. routes

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

Philadelphia to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 269
Cheapest month to flyOctober
Average flight time1 hr, 10 mins
Most popular airlineAmerican Airlines
Average flights per week294

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

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from Philadelphia International to Washington D.C. is ر.ق.‏ 619. 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 International to Washington D.C..
American Airlines, United and PSA Airlines fly direct from Philadelphia International to Washington D.C..
As of September 2025, there are 294 flights per week flying from Philadelphia International to Washington D.C..
The cheapest month to fly from Philadelphia International to Washington D.C. is usually October.
If you're flying from Philadelphia International Airport, the cheapest airport near Washington D.C. is Baltimore Washington International – which is 43.6 km away from the centre of Washington D.C.. We've found flights into this airport from ر.ق.‏ 619.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Washington D.C. on Friday, 3 October 2025.
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 September, the average temperature is usually around 21°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.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Washington D.C..

Flying from Philadelphia International Airport (PHL) to Washington DC: what you need to know

  • Hop on a direct flight from Philadelphia International Airport to Washington DC and you'll be travelling for around 1 hour 5 minutes.

  • Washington DC and Philadelphia (where Philadelphia International Airport is located) share the UTC-4 timezone. This means you won't have to adjust your watch after you land.

  • With 25 flights a week between the two airports, Philadelphia International Airport (PHL) to Ronald Reagan National Airport (DCA) is the most popular route. American Airlines operates the earliest flight at 05:32. If you prefer to make the most of your day before you fly, the last departure from PHL to DCA is with American Airlines at 19:33.

  • Allow plenty of time to get on your PHL to Washington DC flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • Delays at security and check-in are likely if you're travelling during high season, so give yourself some extra wiggle room. A good rule of thumb for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • Direct Philadelphia International Airport to Washington DC tickets are available for booking. Ronald Reagan National Airport (DCA) will be where your journey ends.

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

  • PHL is around 11 kilometres from central Philadelphia. If you're catching a cab, ride-sharing or driving from the centre, it'll take 15 minutes or so to get there, depending on traffic. If you're taking public transport, expect the journey time to be around 45 minutes.

  • Searching for a hotel near PHL? If you're boarding an early flight from Philadelphia International Airport to Washington DC, these accommodation options will put you moments from your departure lounge:

  • Of the departures from Philadelphia International Airport, 78.93% arrive as scheduled at their destination.

  • PHL is located at 8500 Essington Ave.

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

  • ر.ق.‏ 269 is the lowest price we've seen for a one-way Philadelphia International Airport to Washington DC flight. A round-trip ticket right now is ر.ق.‏ 619. Depending on the availability and when you book, these fares could change.

  • To snag cheap flights from PHL to Washington DC, book your trip two months before your departure.

  • Organise your trip for June. That's the best month for scoring an incredible deal on Philadelphia International Airport to Washington DC tickets. If you're open to different travel dates, use the 'Whole month' tool to access the lowest price across every month.

  • You don't need to keep looking every day to see if fares have dropped when you set up a Price Alert. We'll let you know when there's an even bigger deal on cheap flights from PHL to Washington DC.

  • Save on your flight from Philadelphia International Airport to Washington DC with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) is around 8 kilometres from the centre of Washington DC. If you're catching a cab or a ride-share, the drive takes roughly 15 minutes.

  • Travelling to the centre by public transport takes about 45 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Philadelphia International Airport to Washington DC. Check in to one of these accommodation options near DCA instead:

  • Begin your adventure by picking up a Ronald Reagan National Airport rental car. Grab a set of wheels from Thrifty, Sixt or Dollar to explore Washington DC and beyond.

  • Booking your vehicle from Ronald Reagan National Airport about four weeks ahead of your flight from PHL to Washington DC can help you get the best possible rate.

  • The address for DCA is 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Once your flight from Philadelphia International Airport to Washington DC has landed, you can reach the city centre in about 50 minutes by car. Central Washington DC is roughly 56 kilometres from Washington Dulles International Airport (IAD).

  • If you're catching public transport, it'll take about 1 hour 10 minutes.

  • You'll find some great places to rest your head close to IAD. Tuck yourself in and get cosy after your PHL to Washington DC flight at one of these perfectly located options:

  • Dollar, Thrifty and Sixt make collecting a Washington Dulles International Airport rental car simple. These suppliers are located in or around the terminal and will have you behind the wheel before you know it.

  • Get first dibs on the best options. Reserving your ride from IAD one week in advance often means more savings and a greater range of vehicles.

  • You can find Washington Dulles International Airport at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Step off your flight from Philadelphia International Airport to Washington DC and make your way to your hotel or start exploring right away. Central Washington DC is around 48 kilometres from Baltimore/Wash International Thurgood Marshall Airport (BWI) and typically takes 50 minutes to reach by car.

  • If you go by public transport, the journey will take you about 1 hour 30 minutes.

  • If you don't want to make your way to the centre, choose a hotel close to BWI. Check in to one of these options after your PHL to Washington DC flight:

  • Whether you'd like a budget-friendly compact for a solo getaway or an SUV to fit a group of friends, you'll find the ideal Baltimore/Wash International Thurgood Marshall Airport rental car for you. Browse the range of wheels available from companies such as Dollar, Thrifty and Budget.

  • Around two weeks before your flight from Philadelphia International Airport to Washington DC is a good time to book your ride from BWI. You're likely to snag a better deal or catch some early booking discounts.

Best time to go to Washington DC

  • Carefully consider your dates before locking in your flight from Philadelphia International Airport to Washington DC. The city buzzes during peak season, but hotel rates are generally higher and attractions can get busy. Go to Washington DC in the off-season if you want a more relaxed vibe.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC and 33ºC. Book your Philadelphia International Airport to Washington DC flight ticket then if you enjoy this type of weather.

  • Look for cheap tickets from PHL to Washington DC in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -6ºC and 10ºC on average.

More about Washington DC

Explore more of United States

  • New York is just one of the many cities in United States waiting to be discovered once you've seen Washington DC. Around 322 kilometres away to the north-east, popular attractions include Statue of Liberty, Central Park and Empire State Building.

  • If you're looking to explore another major destination in United States, head for Philadelphia, roughly 193 kilometres north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are the start of reasons to visit.

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