Cheap flights from St. Louis, MO to Pittsburgh, PA
Flights starting at $57. Choose between Spirit Airlines, Frontier Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Pittsburgh
Cheapest one-way trip | $91 |
---|---|
Cheapest round-trip | $148 |
Average round-trip | $196 |
Includes rare itinerary | |
Most popular airline | Spirit Airlines |
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The most popular airlines for this route are Spirit Airlines, Frontier Airlines, United Airlines, Southern Airways Express, and Allegiant Air. St. Louis and Pittsburgh have 158 direct flights per week.
Check-in for a flight from St. Louis to Pittsburgh
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Southern Airways Express | FDY | 9X | Yes | No |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Pittsburgh
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 1°C | -5°C |
February | 4°C | -4°C |
March | 10°C | 0°C |
April | 16°C | 5°C |
May | 22°C | 11°C |
June | 26°C | 15°C |
July | 29°C | 18°C |
August | 28°C | 17°C |
September | 24°C | 14°C |
October | 17°C | 8°C |
November | 10°C | 1°C |
December | 5°C | -1°C |
14 day forecast
Frequently asked questions
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