Cheap Flights from St. Louis to Philadelphia

Prices were available within the past 7 days and starts at $39 for one-way flights and $126 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Reviews from verified customers

Mar 1, 2020

Aircraft was small and first class seating was limited. The staff was friendly and helpful.

Jan 13, 2020

Everything went smoothly.

Oct 20, 2019

Quick and professional

Oct 18, 2019

Just good trip all around

Aug 4, 2019

Very helpful with handicapped passenger. Attentive.

Jul 24, 2019

Why do you put answers on your survey that are no where close to true like free check bag I paid for mine there was nothing available like your questions act like ,

Jun 9, 2019

Clean plane and staff was wonderful.

May 26, 2019

Staff were fine folks👍

May 10, 2019

Check in self serve kiosk is confusing. They should have a no option for military service. There was 5 of us who sat there and didn’t know what to pick.

Apr 30, 2019

My original flight was overbooked so they offered me a voucher for a free trip for later. I'm very happy about the free trip for later.

St. Louis to Philadelphia route information

Origin Airport Lambert-St. Louis Intl.
Destination Airport Philadelphia Intl.
Airlines Serving American Airlines, Delta, Frontier Airlines, United
Flight Price $125
Distance 811 mi

Cheap STL to PHL Flights