$69 Cheap Flights from Baltimore (BWI) to Philadelphia (PHL)

View $69 flight on Sat, Jan 24, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Baltimore to Philadelphia (BWI-PHL)

Prices were available within the past 7 days and start at $69 for one-way flights and $139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Nov 18 - Wed, Nov 19
BWI
Baltimore
PHL
Philadelphia
$139 Roundtrip, found 2 days ago
$139
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Tue, Nov 18 from Baltimore to Philadelphia, returning Wed, Nov 19, priced at $139 found 2 days ago
Spirit Airlines
Thu, Nov 13 - Tue, Nov 18
BWI
Baltimore
PHL
Philadelphia
$142 Roundtrip, found 2 days ago
$142
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, Nov 13 from Baltimore to Philadelphia, returning Tue, Nov 18, priced at $142 found 2 days ago
Spirit Airlines
Tue, Nov 18 - Wed, Nov 19
BWI
Baltimore
PHL
Philadelphia
$149 Roundtrip, found 2 days ago
$149
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Tue, Nov 18 from Baltimore to Philadelphia, returning Wed, Nov 19, priced at $149 found 2 days ago
Spirit Airlines
Thu, Nov 13 - Tue, Nov 18
BWI
Baltimore
PHL
Philadelphia
$152 Roundtrip, found 2 days ago
$152
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, Nov 13 from Baltimore to Philadelphia, returning Tue, Nov 18, priced at $152 found 2 days ago
Spirit Airlines
Fri, Nov 14 - Tue, Nov 18
BWI
Baltimore
PHL
Philadelphia
$153 Roundtrip, found 3 days ago
$153
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Fri, Nov 14 from Baltimore to Philadelphia, returning Tue, Nov 18, priced at $153 found 3 days ago
Spirit Airlines
Tue, Dec 9 - Thu, Dec 11
BWI
Baltimore
PHL
Philadelphia
$159 Roundtrip, found 5 hours ago
$159
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Tue, Dec 9 from Baltimore to Philadelphia, returning Thu, Dec 11, priced at $159 found 5 hours ago
Southwest Airlines
Fri, Jan 23 - Sun, Jan 25
BWI
Baltimore
PHL
Philadelphia
$313 Roundtrip, found 3 days ago
$313
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Fri, Jan 23 from Baltimore to Philadelphia, returning Sun, Jan 25, priced at $313 found 3 days ago
American Airlines
Thu, Dec 11 - Mon, Dec 15
BWI
Baltimore
PHL
Philadelphia
$318 Roundtrip, found 7 hours ago
$318
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Dec 11 from Baltimore to Philadelphia, returning Mon, Dec 15, priced at $318 found 7 hours ago
Delta
Wed, Dec 24 - Tue, Jan 6
BWI
Baltimore
PHL
Philadelphia
$469 Roundtrip, found 2 days ago
$469
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 24 from Baltimore to Philadelphia, returning Tue, Jan 6, priced at $469 found 2 days ago
Alaska Airlines
Wed, Dec 10 - Mon, Dec 15
BWI
Baltimore
PHL
Philadelphia
$15,208 Roundtrip, found 2 days ago
$15,208
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from Baltimore to Philadelphia, returning Mon, Dec 15, priced at $15,208 found 2 days ago

Find the cheapest month to fly from Baltimore (BWI) to Philadelphia (PHL)

March is typically the cheapest month to fly

From $117 - $597 per traveler.

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $164
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $164

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL) cost?
Snag a cheap one-way flight from $69 or cheap return flight from $139 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
November is the most affordable month to fly from BWI to PHL. Traveling outside of peak seasons is often the key to landing a great deal.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
Although Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) has no direct flights to Philadelphia Intl. Airport (PHL), other airports have nonstop options. Traveling from Ronald Reagan Washington National Airport (DCA) will get you to Philadelphia without any layovers.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BWI to PHL flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
Direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to PHL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from BWI to PHL?
With 100% of flights usually arriving as scheduled, Delta Air Lines has the best on-time performance for direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL). To monitor your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
Opt for a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your ticket from BWI to PHL shortly before your trip is usually more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a BWI to PHL flight and hotel package?
Booking a BWI to PHL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Philadelphia Intl. Airport (PHL)?
In most instances, you're able to reschedule or cancel your BWI to PHL flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want further details, head to our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$139
Distance
90 mi

Book with confidence

Baltimore to Philadelphia Flights

The cheapest times to fly from Baltimore to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Philadelphia are during the month of November. You can find some of the cheapest flights from Baltimore to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Philadelphia

Sunday is one of the best days to book for cheap flights from Baltimore to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Baltimore to Philadelphia Flights

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*Available to One Key members.