Cheap flights from St. Louis, MO to Trieste, Italy
Flights starting at £257. Choose between Lufthansa, ITA Airways, or Iberia Airlines to find the best price.
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The most popular airlines for this route are Lufthansa, ITA Airways, Iberia Airlines, Frontier Airlines, and Spirit Airlines. St. Louis and Trieste have 188 direct flights per week. When you arrive at Trieste, consider visiting Postojna Cave, Lake Bled, Slovenia, and Piazza San Marco.
Check-in for a flight from St. Louis to Trieste
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Lufthansa | DLH | LH | No | 0 0 |
ITA Airways | ITY | AZ | Yes | 0 0 |
Iberia Airlines | IBE | IB | Yes | Opens 24 days before flight Closes 3 hours before flight |
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 |
Weather in Trieste
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 2°C |
February | 8°C | 3°C |
March | 12°C | 5°C |
April | 16°C | 8°C |
May | 20°C | 12°C |
June | 25°C | 16°C |
July | 27°C | 19°C |
August | 28°C | 19°C |
September | 23°C | 15°C |
October | 18°C | 11°C |
November | 13°C | 8°C |
December | 8°C | 4°C |
14 day forecast
Frequently asked questions
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