¥34,790 Cheap Flights from Philadelphia (PHL) to St. Louis (STL)

Popular airlines from Philadelphia Intl. Airport (PHL) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Philadelphia to St. Louis (PHL-STL)

Prices were available within the past 7 days and start at ¥34,790 for one-way flights and ¥69,470 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
Delta
Delta
United

Find the cheapest month to fly from Philadelphia (PHL) to St. Louis (STL)

February is typically the cheapest month to fly

From ¥18,658 - ¥59,746 per traveler.

Frequently asked questions

How much is a flight from Philadelphia Airport to Lambert Field?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Philadelphia Airport to St. Louis Lambert International Airport was ¥69,470. Cheap tickets don't hang around, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Philadelphia Airport to Lambert Field?
Most flights can be conveniently canceled online, but whether you incur a fee varies between airlines. If you do need to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from PHL to STL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PHL to Lambert-St. Louis Intl. Airport (STL) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Philadelphia Airport to St. Louis Lambert International Airport?
The flight time from Philadelphia Airport to Lambert-St. Louis Intl. Airport (STL) is about 2 hours and 25 minutes, so don't get too cozy. There's a good chance the next time you peek out the window you'll be making your descent into St. Louis.
How far is the flight from PHL to St. Louis Lambert International Airport?
It's just 1,300 kilometers between Philadelphia and St. Louis. It's quite possible that you'll spend more time getting to and from the airport than actually flying!
Which airlines fly direct from Philadelphia Airport to Lambert Field?
American Airlines (AA) will get you from Philadelphia Intl. Airport (PHL) to Lambert Field comfortably and reliably. You can choose from 60 flights each month on this route.
Are Philadelphia Intl. Airport (PHL) to St. Louis Lambert International Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab great last-minute deals from PHL to Lambert-St. Louis Intl. Airport (STL), but it's also possible to miss out altogether! As many airlines release seats up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you see a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can feel confident knowing you're always getting the latest offers.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
¥69,470
Distance
1298 km
Average flight time
1 hour 49 mins

Book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.