CA $132 Cheap Flights from St. Louis (STL) to Philadelphia (PHL)

Airlines that fly from Lambert-St. Louis International Airport (STL) to Philadelphia International Airport (PHL)

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Cheap flights from St. Louis (STL) to Philadelphia (PHL)

Prices were available within the past 7 days and start at CA $132 for one-way flights and CA $547 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
American Airlines
American Airlines
Delta
American Airlines
American Airlines
American Airlines
American Airlines
Flight from St. Louis to Philadelphia (STL - PHL) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $546
Distance
1298 km

St. Louis to Philadelphia Flights

The easy way to book your flights from St. Louis to Philadelphia 

With Expedia, it’s simple to find and book flights to Philadelphia from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are American Airlines, Qatar Airways, Aer Lingus, Southwest Airlines nonstop flights to Philadelphia Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Philadelphia today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Philadelphia Intl., PHL 

Sort your search results by price to find great deals on your flight from St. Louis to Philadelphia—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Philadelphia from St. Louis currently is just CA $547 rising to CA $623.  

Here are more money-saving tips: 

  • Fly in November when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Philadelphia  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Philadelphia from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Philadelphia with Expedia today.

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to Philadelphia Intl. Airport (PHL)?
Round-trip journeys between STL and Philadelphia Airport start from CA $547. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to Philadelphia Airport?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from STL to PHL 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 Lambert Field to PHL flights, you’ll see a “no change fees” filter for you to select.
How many hours is the flight from STL to PHL?
Settle into your seat, pick an in-flight TV show and 2 hours and 6 minutes will whiz by in a jiffy. That’s how long it takes to get to PHL (PHL) from STL (STL).
How far is the flight from STL to PHL?
The distance from Lambert-St. Louis Intl. Airport (STL) (STL) to Philadelphia Intl. Airport (PHL) (PHL) is only 1,300 kilometers. You’ll be walking down the air bridge and collecting your suitcase from the carousel in no time.
Which airlines fly direct from St. Louis Lambert International Airport to PHL?
With 56 flights a month from Lambert Field to PHL, Southwest Airlines (WN) is a top choice. Another carrier servicing this route is American Airlines (AA). You’ll have 30 flights each month to select from.
Are St. Louis Lambert International Airport to PHL flight tickets cheaper when they're purchased at the last minute?
It is possible to find an amazing last-minute deal from STL to PHL, but it can also be hit-or-miss. As many airlines advertise prices up to a year in advance, it’s worth keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest assured you’re always seeing the latest offers.
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