Cheap flights from Ottawa, Canada to St. Louis, MO
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Tips to know when travelling to St. Louis
Most popular airline | Porter Airlines |
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The most popular airlines for this route are Porter Airlines, Frontier Airlines, Spirit Airlines, United Airlines, and Southern Airways Express. Ottawa and St. Louis have 147 direct flights per week.
Check-in for a flight from Ottawa to St. Louis
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Porter Airlines | POE | PD | Yes | 0 0 |
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 |
Weather in St. Louis
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 3°C | -3°C |
February | 6°C | -2°C |
March | 13°C | 3°C |
April | 18°C | 8°C |
May | 24°C | 14°C |
June | 29°C | 19°C |
July | 31°C | 21°C |
August | 30°C | 20°C |
September | 27°C | 16°C |
October | 20°C | 10°C |
November | 12°C | 3°C |
December | 7°C | 0°C |
14 day forecast
Frequently asked questions
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Flights to St. Louis
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Popular routes
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The nearest countries with flights to St. Louis
Here is a list of countries people are flying fromOther destination countries from Ottawa
Here is a list of countries people are flying toAirports near Ottawa
- Montréal–Pierre Elliott Trudeau International
- Ottawa Macdonald–Cartier International
- Syracuse Hancock International
- Plattsburgh International
- Burlington International
- Massena International
- Ogdensburg International
- Adirondack Regional
- Watertown International
- Montreal Saint-Hubert Longueuil