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Cheap Flights from Baltimore Washington International to Philadelphia International

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      Compare Baltimore Washington International to Philadelphia International flight deals

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

      Book the best Philadelphia International fare with no extra fees

      Flight deals from Baltimore Washington International to Philadelphia International

      Looking for a cheap last-minute deal or the best round-trip flight from Baltimore Washington International Airport to Philadelphia International Airport? If you want to travel next month, round-trip fares start from 3 191 Kč. Find the lowest prices on one-way and round-trip tickets right here.
      Philadelphia.3 191 Kč per passenger.Departing Fri, Sep 25, returning Sun, Sep 27.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Fri, Sep 25, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Sun, Sep 27, arriving in Baltimore Washington International.Price includes taxes and charges.From 3 191 Kč, select.
      Philadelphia.3 191 Kč per passenger.Departing Sat, Aug 8, returning Fri, Aug 14.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Sat, Aug 8, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Fri, Aug 14, arriving in Baltimore Washington International.Price includes taxes and charges.From 3 191 Kč, select.
      Philadelphia.3 271 Kč per passenger.Departing Tue, Oct 20, returning Thu, Oct 22.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Tue, Oct 20, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Thu, Oct 22, arriving in Baltimore Washington International.Price includes taxes and charges.From 3 271 Kč, select.
      Philadelphia.3 338 Kč per passenger.Departing Fri, Aug 28, returning Fri, Sep 11.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Fri, Aug 28, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Fri, Sep 11, arriving in Baltimore Washington International.Price includes taxes and charges.From 3 338 Kč, select.
      Philadelphia.5 664 Kč per passenger.Departing Thu, Jul 30, returning Sun, Aug 2.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Thu, Jul 30, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Sun, Aug 2, arriving in Baltimore Washington International.Price includes taxes and charges.From 5 664 Kč, select.
      Philadelphia.5 678 Kč per passenger.Departing Fri, Sep 25, returning Sat, Oct 10.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Fri, Sep 25, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Sat, Oct 10, arriving in Baltimore Washington International.Price includes taxes and charges.From 5 678 Kč, select.
      Philadelphia.5 956 Kč per passenger.Departing Fri, Jul 24, returning Tue, Jul 28.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Fri, Jul 24, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, Jul 28, arriving in Baltimore Washington International.Price includes taxes and charges.From 5 956 Kč, select.
      Philadelphia.6 065 Kč per passenger.Departing Wed, Nov 4, returning Thu, Nov 5.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Wed, Nov 4, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Thu, Nov 5, arriving in Baltimore Washington International.Price includes taxes and charges.From 6 065 Kč, select.
      Philadelphia.7 377 Kč per passenger.Departing Fri, Oct 23, returning Sun, Nov 8.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Fri, Oct 23, arriving in Philadelphia International.Inbound indirect flight with Frontier Airlines, departing from Philadelphia International on Sun, Nov 8, arriving in Baltimore Washington International.Price includes taxes and charges.From 7 377 Kč, select.
      Philadelphia.14 584 Kč per passenger.Departing Sat, Jan 30, returning Sun, Jan 31.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Baltimore Washington International on Sat, Jan 30, arriving in Philadelphia International.Inbound indirect flight with jetBlue, departing from Philadelphia International on Sun, Jan 31, arriving in Baltimore Washington International.Price includes taxes and charges.From 14 584 Kč, select.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Philadelphia International flights are currently cheapest in August.
      Jul
      from 5 956 Kč
      Aug
      from 3 191 Kč
      Sep
      from 3 191 Kč
      Oct
      from 3 271 Kč
      Nov
      from 6 065 Kč
      Dec
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      Jan
      from 14 584 Kč
      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Baltimore Washington International to Philadelphia International: Alternative routes

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

      Philadelphia International

      11km from central Philadelphia
      ClosestCheapest
      from 3 191 Kč
      Search flights

      Philadelphia Trenton-Mercer

      47km from central Philadelphia
      from 6 176 Kč
      Search flights

      Greater Wilmington

      49km from central Philadelphia
      Search flights

      Atlantic City International

      75km from central Philadelphia
      from 5 762 Kč
      Search flights

      Allentown

      81km from central Philadelphia
      from 5 460 Kč
      Search flights

      Washington, D.C. to Philadelphia: Flight information

      The things to know before you go.
      Cheapest flight found3 191 Kč
      Cheapest month to flySeptember

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

      The best price we found for a round-trip flight from Baltimore Washington International to Philadelphia International is 3 191 Kč. 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 Baltimore Washington International to Philadelphia International. But we found flights with one or more stops from 3 191 Kč.
      There are no flights flying from Baltimore Washington International to Philadelphia International, as of July 2026.
      The cheapest month to fly from Baltimore Washington International to Philadelphia International is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Philadelphia International Airport on Friday, September 25, 2026.
      No airlines currently offer direct flights between Baltimore Washington International Airport and Philadelphia 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 Philadelphia 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 Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines offers the cheapest flight tickets to Philadelphia International.

      How to find cheap flights to Philadelphia International from Baltimore Washington International

      Looking for cheap tickets from Baltimore Washington International to Philadelphia International? 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 Delta Air Lines 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 Baltimore Washington International to Philadelphia International. And with us, there are no hidden fees – what you see is what you pay.
      • Compare flight deals to Philadelphia International from Baltimore Washington International from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
      • Flex your dates to find the best Baltimore Washington International–Philadelphia International ticket prices. If you're 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 Philadelphia International from Baltimore Washington International.
      • Set up a Price Alert. You can easily track the fare of your cheap Baltimore Washington International–Philadelphia International 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 Baltimore Washington International and Philadelphia International? 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 Baltimore Washington International and Philadelphia International. We scour the Internet for the best Business, Premium Economy and First Class flight fares to Philadelphia International, too. Check the difference in price as you search – you might just stumble on 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 Baltimore Washington International to Philadelphia International 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 the next time you travel.

        • Combine your flight to Philadelphia International from Baltimore Washington International with hotels and car rental

        Once you've secured your cheap flight ticket from Baltimore Washington International to Philadelphia International, discover the best prices and exclusive rates for hotels in Philadelphia International or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


      Plan the rest of your trip from Washington, D.C. to Philadelphia

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.