$90 Cheap Flights from Philadelphia (PHL) to Baltimore (BWI)

View $90 flight on Sat, Jul 19, 2025Opens in a new window

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

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Cheap Flights from Philadelphia to Baltimore (PHL-BWI)

Prices were available within the past 7 days and start at $90 for one-way flights and $181 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Jul 28 - Mon, Aug 4
PHL
Philadelphia
BWI
Baltimore
$181 Roundtrip, found 6 days ago
$181
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Mon, Jul 28 from Philadelphia to Baltimore, returning Mon, Aug 4, priced at $181 found 6 days ago
Spirit Airlines
Sun, Jul 27 - Sat, Aug 2
PHL
Philadelphia
BWI
Baltimore
$187 Roundtrip, found 6 days ago
$187
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sun, Jul 27 from Philadelphia to Baltimore, returning Sat, Aug 2, priced at $187 found 6 days ago
Spirit Airlines
Thu, Jul 24 - Sat, Aug 2
PHL
Philadelphia
BWI
Baltimore
$190 Roundtrip, found 6 days ago
$190
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Thu, Jul 24 from Philadelphia to Baltimore, returning Sat, Aug 2, priced at $190 found 6 days ago
Spirit Airlines
Thu, Jul 24 - Mon, Aug 4
PHL
Philadelphia
BWI
Baltimore
$193 Roundtrip, found 6 days ago
$193
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Thu, Jul 24 from Philadelphia to Baltimore, returning Mon, Aug 4, priced at $193 found 6 days ago
Spirit Airlines
Mon, Jul 28 - Sun, Aug 3
PHL
Philadelphia
BWI
Baltimore
$195 Roundtrip, found 6 days ago
$195
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Mon, Jul 28 from Philadelphia to Baltimore, returning Sun, Aug 3, priced at $195 found 6 days ago
Spirit Airlines
Mon, Jul 28 - Thu, Jul 31
PHL
Philadelphia
BWI
Baltimore
$200 Roundtrip, found 6 days ago
$200
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Mon, Jul 28 from Philadelphia to Baltimore, returning Thu, Jul 31, priced at $200 found 6 days ago
Delta
Tue, Sep 2 - Tue, Sep 9
PHL
Philadelphia
BWI
Baltimore
$263 Roundtrip, found 11 hours ago
$263
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Sep 2 from Philadelphia to Baltimore, returning Tue, Sep 9, priced at $263 found 11 hours ago
Southwest Airlines
Thu, Sep 4 - Wed, Sep 10
PHL
Philadelphia
BWI
Baltimore
$296 Roundtrip, found 4 hours ago
$296
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Thu, Sep 4 from Philadelphia to Baltimore, returning Wed, Sep 10, priced at $296 found 4 hours ago
American Airlines
Tue, Aug 5 - Thu, Aug 7
PHL
Philadelphia
BWI
Baltimore
$371 Roundtrip, found 1 day ago
$371
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 5 from Philadelphia to Baltimore, returning Thu, Aug 7, priced at $371 found 1 day ago
United
Fri, Sep 12 - Sat, Sep 13
PHL
Philadelphia
BWI
Baltimore
$445 Roundtrip, found 3 days ago
$445
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 12 from Philadelphia to Baltimore, returning Sat, Sep 13, priced at $445 found 3 days ago

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

March is typically the cheapest month to fly

From $121 - $467 per traveler.

Graph displaying average flight prices per month

Flights from Philadelphia (PHL) to Baltimore (BWI)
Origin airport
Philadelphia Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$181
Distance
90 mi

Philadelphia to Baltimore Flights

The cheapest times to fly from Philadelphia to Baltimore

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 Philadelphia to Baltimore are during the month of July. You can find some of the cheapest flights from Philadelphia to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Baltimore

Sunday is one of the best days to book for cheap flights from Philadelphia to Baltimore: 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 Philadelphia to Baltimore

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 Philadelphia to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 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 Philadelphia to Baltimore 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 Philadelphia to Baltimore 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.

 

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Discover the latest flight deals from PHL to BWI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PHL to BWI?
The cheapest flights from PHL to BWI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PHL to BWI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PHL to BWI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to hop on a flight with a layover if you're traveling from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from PHL to BWI?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a number of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Book a flight from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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.
What airports do you fly into for Baltimore from Philadelphia Intl. Airport (PHL)?
Take a direct flight from Philadelphia Intl. Airport (PHL) to Baltimore and arrive at Ronald Reagan Washington National Airport (DCA). Another point of entry into this city is Washington Dulles Intl. Airport (IAD).
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until just before your departure to book a ticket from PHL to BWI generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a PHL to BWI flight and hotel package?
Opting for a PHL to BWI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of stays and then add car rentals, activities and flights 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 Philadelphia Intl. Airport (PHL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You can usually reschedule or cancel your PHL to BWI flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.