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$89+ Cheap flights from Baltimore to Philadelphia (BWI - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — PHL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Baltimore to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$153
(Frontier)

One-way from

$89
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$249
From Baltimore/Washington to Philadelphia
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One-way flight from Baltimore/Washington to Philadelphia
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Highest demand for flights based on searches. 15% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Baltimore to Philadelphia

Cheapest flights from Baltimore to Philadelphia
Explore the most affordable flight options available from Baltimore to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:12 amBWI - PHL
1 stop5h 38mFrontier
Fri 10/36:00 amPHL - BWI
1 stop10h 50mFrontier
Deal found 9/15$153
This Frontier deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:12 amBWI - PHL
1 stop5h 38mFrontier
Sun 10/511:24 amPHL - BWI
1 stop8h 41mFrontier
Deal found 9/16$155
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:38 amBWI - PHL
1 stop11h 20mMultiple Airlines
Mon 10/65:10 amPHL - BWI
1 stop29h 51mMultiple Airlines
Deal found 9/17$178
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:12 amBWI - PHL
1 stop5h 38mFrontier
Thu 10/25:15 amPHL - BWI
1 stop5h 33mFrontier
Deal found 9/15$184
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:20 pmBWI - PHL
1 stop16h 12mMultiple Airlines
Wed 10/229:14 pmPHL - BWI
1 stop15h 26mMultiple Airlines
Deal found 9/16$192
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:12 amBWI - PHL
1 stop5h 38mFrontier
Sat 10/48:00 amPHL - BWI
1 stop7h 17mFrontier
Deal found 9/15$193
This Frontier deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:12 amBWI - PHL
1 stop5h 38mFrontier
Thu 9/2510:21 amPHL - BWI
1 stop10h 53mFrontier
Deal found 9/16$194
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:20 pmBWI - PHL
1 stop8h 39mFrontier
Sun 11/210:32 pmPHL - BWI
1 stop10h 02mFrontier
Deal found 9/15$195
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:49 pmBWI - PHL
1 stop13h 57mSpirit Airlines
Sun 10/55:33 amPHL - BWI
1 stop30h 21mSpirit Airlines
Deal found 9/16$198
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:20 pmBWI - PHL
1 stop24h 14mMultiple Airlines
Tue 10/286:50 pmPHL - BWI
1 stop17h 50mMultiple Airlines
Deal found 9/15$199
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:45 pmBWI - PHL
1 stop4h 44mFrontier
Mon 9/221:02 pmPHL - BWI
1 stop11h 15mFrontier
Deal found 9/15$203
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:27 pmBWI - PHL
1 stop10h 08mFrontier
Wed 10/18:00 amPHL - BWI
1 stop7h 29mFrontier
Deal found 9/15$204

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Baltimore to Philadelphia that are best for you.

Fly from

Baltimore

Fly to

Philadelphia

Route

Depart

Return

Price

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 10/1

8:12 am-1:50 pm

1 stop5h 38m

Philadelphia

Fri 10/3

6:00 am-4:50 pm

1 stop10h 50m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 10/24

12:29 pm-8:53 pm

1 stop8h 24m

Philadelphia

Sun 10/26

6:00 am-10:35 am

1 stop4h 35m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 10/28

10:00 am-3:05 pm

1 stop5h 05m

Philadelphia

Sat 11/1

6:26 pm-12:02 am

1 stop5h 36m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Thu 10/2

6:22 am-12:59 am

1 stop18h 37m

Philadelphia

Wed 10/8

5:53 pm-11:53 pm

1 stop6h 00m

$153

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Thu 10/2

9:38 am-8:58 pm

1 stop11h 20m

Philadelphia

Mon 10/6

5:10 am-11:01 am

1 stop29h 51m

$178

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 9/23

8:12 am-1:50 pm

1 stop5h 38m

Philadelphia

Thu 10/2

5:15 am-10:48 am

1 stop5h 33m

$184

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 10/15

5:20 pm-9:32 am

1 stop16h 12m

Philadelphia

Wed 10/22

9:14 pm-12:40 pm

1 stop15h 26m

$192

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 9/24

8:12 am-1:50 pm

1 stop5h 38m

Philadelphia

Thu 9/25

10:21 am-9:14 pm

1 stop10h 53m

$194

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 10/31

4:20 pm-12:59 am

1 stop8h 39m

Philadelphia

Sun 11/2

10:32 pm-8:34 am

1 stop10h 02m

$195

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Tue 9/30

7:49 pm-9:46 am

1 stop13h 57m

Philadelphia

Sun 10/5

5:33 am-11:54 am

1 stop30h 21m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 22 results
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Best time to book a flight from Baltimore to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Philadelphia

What is the cheapest month to book a flight from Baltimore to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Baltimore to Philadelphia (average of $236). Flying from Baltimore to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Baltimore to Philadelphia?

    There are many flights that can get you from Baltimore to Philadelphia in 5h 38m. Fly via Frontier to get the fastest option. Baltimore and Philadelphia are separated by a distance of 90 mi.

  • Can I find deals for flights from Baltimore to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Baltimore to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Philadelphia.

  • Can I find deals for business class flights from Baltimore to Philadelphia?

    Yes. Cheapflights offers flight deals from Baltimore to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Baltimore to Philadelphia (average of $236). Flying from Baltimore to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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