Cheap flights from St. Louis, MO to Philadelphia, PA
Flights starting at £36. Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Philadelphia
Cheapest one-way trip | £72 |
---|---|
Cheapest round-trip | £125 |
Average round-trip | £141 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
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The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Southern Airways Express, and Sun Country Airlines. St. Louis and Philadelphia have 175 direct flights per week. When you arrive at Philadelphia, consider visiting Statue of Liberty, National Mall, Staten Island, Manhattan Island, Independence National Historical Park, PA, USA, Metropolitan Museum of Art, Empire State Building, Lincoln Memorial, and Times Square.
Weekly direct flights
Discover the top airlines offering direct flights from St. Louis to Philadelphia in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Mon 15.04 - Sun 21.04
Airline | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 | Sun 21.04 |
---|---|---|---|---|---|---|---|
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Mon 22.04 - Sun 28.04
Airline | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 | Sun 28.04 |
---|---|---|---|---|---|---|---|
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Mon 29.04 - Sun 05.05
Airline | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 | Sun 05.05 |
---|---|---|---|---|---|---|---|
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Mon 06.05 - Sun 12.05
Airline | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 | Sun 12.05 |
---|---|---|---|---|---|---|---|
--- | --- | 1 | 1 | 1 | 1 | --- |
Check-in for a flight from St. Louis to Philadelphia
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Southern Airways Express | FDY | 9X | Yes | No |
Sun Country Airlines | SCX | SY | Yes | No |
Weather in Philadelphia
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 3°C | -2°C |
February | 6°C | -1°C |
March | 10°C | 2°C |
April | 16°C | 7°C |
May | 22°C | 12°C |
June | 26°C | 17°C |
July | 30°C | 21°C |
August | 29°C | 20°C |
September | 25°C | 17°C |
October | 19°C | 11°C |
November | 12°C | 4°C |
December | 7°C | 0°C |
14 day forecast
Frequently asked questions
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