Cheap Flights from St. Louis (STL) to Philadelphia (PHL) from HK$1,402~

View HK$1,402 flight on Fri, 26 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$1,402 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

November is typically the cheapest month to fly

From HK$926 - HK$3,474 per traveller.

Graph displaying average flight prices per month

St. Louis to Philadelphia route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Philadelphia Intl.
Distance
1298 km
Average flight time
3 hours 15 mins

Flights from St. Louis to Philadelphia

Book cheap flights from St. Louis (STL) to Philadelphia (PHL) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from St. Louis (STL) to Philadelphia (PHL) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your St. Louis (STL) to Philadelphia (PHL) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Philadelphia flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Philadelphia and things to do in Philadelphia for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Philadelphia more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Philadelphia is HK$1,402 now!

 

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 . 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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