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Cheap Flights from Philadelphia to Baltimore Washington International

Compare Philadelphia to Baltimore Washington International flight deals

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

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Flight deals from Philadelphia to Baltimore Washington International

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Baltimore Washington International Airport? If you want to travel next month, return fares start from R 3,130. Find the lowest prices on one-way and return tickets right here.
Washington D.C..R 1,459 per passenger.Departing Wed, 3 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Wed, 3 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From R 1,459, select.
Washington D.C..R 1,617 per passenger.Departing Tue, 28 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 28 Jul, arriving in Baltimore Washington International.Price includes taxes and charges.From R 1,617, select.
Washington D.C..R 1,961 per passenger.Departing Mon, 17 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 17 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From R 1,961, select.
Washington D.C..R 2,274 per passenger.Departing Mon, 5 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 5 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From R 2,274, select.
Washington D.C..R 2,318 per passenger.Departing Thu, 28 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 28 May, arriving in Baltimore Washington International.Price includes taxes and charges.From R 2,318, select.
Washington D.C..R 2,455 per passenger.Departing Thu, 10 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 10 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From R 2,455, select.
Washington D.C..R 3,461 per passenger.Departing Tue, 10 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 10 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From R 3,461, select.

Find the cheapest month to fly from Philadelphia to Baltimore Washington International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Baltimore Washington International flights are currently cheapest in June.
May
from R 2,318
Jun
from R 1,459
Jul
from R 1,617
Aug
from R 1,961
Sep
from R 2,455
Oct
from R 2,274
Nov
from R 3,461
Dec
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Jan
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Feb
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Mar
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Apr
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Philadelphia to Baltimore Washington International: 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 Baltimore Washington International.

Washington Ronald Reagan

5km from central Washington D.C.
Closest
from R 1,999
Search flights

Camp Springs Andrews AFB

17km from central Washington D.C.
Search flights

Washington Dulles

37km from central Washington D.C.
Cheapest
from R 1,359
Search flights

Baltimore Washington International

44km from central Washington D.C.
from R 1,459
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Manassas

47km from central Washington D.C.
Search flights

Philadelphia to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundR 1,459
Cheapest month to flyJune

Finding cheap flights from Philadelphia to Baltimore Washington International: Frequently asked questions

The best price we found for a return flight from Philadelphia to Baltimore Washington International is R 3,130. 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.
Currently, there are no airlines that fly direct from Philadelphia to Baltimore Washington International. But we found flights with one stop from R 3,130.
As of May 2026, there are no flights flying from Philadelphia to Baltimore Washington International.
The cheapest month to fly from Philadelphia to Baltimore Washington International is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Baltimore Washington International Airport on Thursday, 4 June 2026.
No airlines currently offer direct flights between Philadelphia and Baltimore Washington International Airport. Most routes have one or more stops.
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 Baltimore Washington International 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 Baltimore Washington International is Frontier Airlines .

Flying from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport (BWI): What you need to know

  • Start your trip planning by checking out the most convenient departure point for your flight from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport (BWI). Explore the options for leaving from Philadelphia International Airport (PHL) or Trenton-Mercer Airport (TTN), the city's main airports.

  • Philadelphia and Washington DC (where Baltimore/Wash International Thurgood Marshall Airport is located) share the UTC-4 timezone. That means you won't need to change your watch once you land.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to board your flight from Philadelphia to BWI.

  • If you're taking off during a major holiday or other peak period, allow extra time. Arrive two hours ahead of domestic flights and up to four hours before international departures. Lines at check-in and security will be longer.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • The journey from central Philadelphia to PHL takes about 45 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 19 kilometres in 15 minutes or so, depending on traffic.

  • Want a hassle-free start to your trip? Stay near Philadelphia International Airport. Whether you've booked an early flight from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport or prefer not to rush, these hotels are the answer:

  • 78.93% of flights departing from Philadelphia International Airport touch down at their destination on schedule.

  • You'll find PHL at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • You can arrive at TTN from the centre of Philadelphia in approximately 40 minutes by car (depending on traffic). The journey on public transport will take roughly 1 hour 45 minutes to travel the 56 kilometres or so.

  • Flying out early in the morning? You might like to check in to one of these hotels near Trenton-Mercer Airport the day before your Philadelphia to BWI flight:

  • Flights from Trenton-Mercer Airport are known for their punctuality, with 82.45% of them landing within the expected time frame.

  • You'll find TTN at Scotch Road, Terminal Building.

About Baltimore/Wash International Thurgood Marshall Airport (BWI)

Getting from Baltimore/Wash International Thurgood Marshall Airport (BWI) to central Washington DC

  • Baltimore/Wash International Thurgood Marshall Airport to the centre of Washington DC is around 40 kilometres. If you're getting a cab or renting a car, do a little research to make your trip as smooth as possible. Journey times can vary depending on traffic conditions and the time of day.

  • When travelling by public transport, expect a journey of around 1 hour 30 minutes.

How to find the cheapest flights from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • The cheapest price we've found for a one-way ticket from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport is R 1,450. For a return flight on this route, the best price is R 3,130. Depending on when you book and the availability, these fares can change.

  • Don't leave things to the last minute. You're more likely to find cheap flights from Philadelphia to BWI if you book in advance. Airlines often offer some amazing early bird discounts.

  • The 'Whole month' search tool shows you the cheapest Philadelphia to Baltimore/Wash International Thurgood Marshall Airport tickets throughout the entire month. It's a good way to find a bargain if your dates are flexible.

  • You don't need to search every day to find out if prices have dropped when you set up a Price Alert. We'll let you know the moment a better deal comes up on plane tickets from Philadelphia to BWI.

  • Tailor your trip using filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport.

The best time to fly from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • July is the busiest month for flights from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport (BWI). Plan your visit to Washington DC in May for a more low-key escape.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your Philadelphia to BWI plane ticket then if that's your ideal forecast.

  • January sees temperatures of between -6ºC (21ºF) and 10ºC (50ºF). Look for cheap tickets from Philadelphia to Baltimore/Wash International Thurgood Marshall Airport around that time if you want to travel when it's cooler.

More about Washington DC

Explore more of the United States

  • Washington DC is easy to fall in love with, but there are so many other corners of the United States just waiting to be discovered. Around 153 kilometres north-east of Washington DC, a visit to Philadelphia will keep you on the go. Start with popular sights like Independence Hall, Liberty Bell and Philadelphia Museum of Art.

  • Around 274 kilometres south of Washington DC, Virginia Beach is another favourite stop in the United States. Experience this destination's highlights firsthand at Virginia Beach Oceanfront, Virginia Beach Boardwalk and Resort Beach.

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