Cheap flights Philadelphia — Saint Louis (PHL — STL)

Good to know - Cheap tickets Philadelphia — Saint Louis

Cheapest flight found $61
Minimal flight time 2h 32m
Flight distance 1301 km
Most popular airline Southwest Airlines

Airfare Philadelphia – Saint Louis by month

Here you can find out in what months how much a ticket Philadelphia – Saint Louis costs to buy cheap plane tickets.

Month One-way Round-trip
August 2025
July 2025
February 2025
December 2024

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Philadelphia — Saint Louis

Departure Arrival Flight days Flight Airlines Flight time Airports
08:05 09:40 sat WN1397 Southwest Airlines 2h 35m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
11:00 12:33 tue AA3162 American Airlines 2h 33m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
11:50 13:25 mon, thu, fri WN1407 Southwest Airlines 2h 35m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
14:10 15:50 mon, tue, wed, thu, fri, sun WN1397 Southwest Airlines 2h 40m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
16:10 17:45 sat WN1407 Southwest Airlines 2h 35m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
17:05 18:40 mon, thu, fri WN1397 Southwest Airlines 2h 35m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
17:10 18:45 sun WN1397 Southwest Airlines 2h 35m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
21:20 22:52 fri, sat AA2036 American Airlines 2h 32m Philadelphia International Airport — Lambert-St. Louis International Airport Select dates
All routes

Sales of tickets from Philadelphia to Saint Louis in the last 48 hours

2026-03-18 one-way

2026-03-18 one-way

2026-03-18 one-way

2026-04-02 - 2026-04-05

2026-04-04 - 2026-04-07

Flights Philadelphia — Saint Louis

The selection of cheap flights Philadelphia — Saint Louis

Here you can find and purchase the cheapest flights Philadelphia — Saint Louis from $61 and Philadelphia — Saint Louis — Philadelphia from $125.

The price of the flight Philadelphia — Saint Louis (United States) — Philadelphia from $125 (round-trip).

The average price of the flight Philadelphia — Saint Louis (United States) — Philadelphia $413 (round-trip).

Low cost flights Philadelphia — Saint Louis (PHL — STL)

The distance between Philadelphia and Saint Louis 808 miles (or 1301 kilometres).

The time difference between Philadelphia and Saint Louis is 1 h.

Minimal flight time from Philadelphia to Saint Louis 2h 32m.

LowCostClub always do a comparison of airfares Philadelphia — Saint Louis with several airlines (include Southwest Airlines, American Airlines). They will always give you all available options so you can find the cheapest flight to Saint Louis. In addition, you can choose the platform where you want to place your orders. There are also special offers for air tickets Philadelphia — Saint Louis. Last week, for instance, the cheapest round-trip prices stood at $125 while the cheapest one-way price that was available within the last week cost $61

Routes from nearby cities to Saint Louis

A flight from a neighbouring city can help you save money on plane tickets.

The most frequent flight to Saint Louis is from New York. The cheapest airfare can be purchased with a flight from Hartford from $59. The nearest airports from Philadelphia with a flight to Saint Louis are in State College.

Popular International routes from Philadelphia

Popular routes from Saint Louis

If you are going to fly from Saint Louis, then study the popular flights. The most popular flights from Saint Louis:

Popular domestic routes from Philadelphia

FAQ about Philadelphia — Saint Louis

Yes, they do: WN1397, AA3162, WN1407, AA2036

Yes, you can fly from Philadelphia to Saint Louis. Philadelphia has 5 airports (Mustin Alf, North Philadelphia, Philadelphia Sea Plane Base, Philadelphia International Airport, Trenton-Mercer Airport) for flights. Southwest Airlines, American Airlines depart from Philadelphia on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through Air Canada Express, Alaska Airlines, Allegiant Air, AlphaSky, Alpine Air Express, Contour Aviation, Delta Air Lines, FedEx, Frontier (Miguel & Lina the Island Foxes Livery), Jet Linx Aviation, Kalitta Charters, Kalitta Charters II, NetJets, SkyWest Charter, Slate Aviation, United Express, UPS.

A direct flight lasts an average of 2h 32m, during which time the aircraft covers a distance of 1301 km.

The price of flights Philadelphia — Saint Louis starts from $61.

Planes fly Philadelphia — Saint Louis 7 times a week on the following days: mon, tue, wed, thu, fri, sat, sun

In Philadelphia — Mustin Alf, North Philadelphia, Philadelphia Sea Plane Base, Philadelphia International Airport, Trenton-Mercer Airport. In Saint Louis — St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport.

The following flights fly between Philadelphia and Saint Louis: WN1397, AA3162, WN1407, WN1397, WN1407, WN1397, WN1397, AA2036

High season is considered to be July and the cheapest month is February. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Philadelphia — Saint Louis flight deals.

The following airlines have direct flights Philadelphia — Saint Louis: Southwest Airlines, American Airlines.

All the following airlines flights Philadelphia — Saint Louis: Air Canada Express, Alaska Airlines, Allegiant Air, AlphaSky, Alpine Air Express, American Airlines, Contour Aviation, Delta Air Lines, FedEx, Frontier (Miguel & Lina the Island Foxes Livery), Jet Linx Aviation, Kalitta Charters, Kalitta Charters II, NetJets, SkyWest Charter, Slate Aviation, Southwest Airlines, United Express, UPS.

Low price calendar

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