Cheap flights from St. Louis, MO to Buenos Aires, Argentina
Flights starting at $346. Choose between Spirit Airlines, Avianca, or Frontier Airlines to find the best price.
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Tips to know when travelling to Buenos Aires
Cheapest one-way trip | $346 |
---|---|
Cheapest round-trip | $814 |
Average round-trip | $964 |
Includes rare itinerary | |
Most popular airline | Spirit Airlines |
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Book your trip to arrive at Ministro Pistarini International, or Aeroparque Jorge Newbery. The most popular airlines for this route are Spirit Airlines, Avianca, Frontier Airlines, Aerolineas Argentinas, and Copa Airlines. St. Louis and Buenos Aires have 175 direct flights per week. When you arrive at Buenos Aires, consider visiting Recoleta, and La Boca, Buenos Aires.
Check-in for a flight from St. Louis to Buenos Aires
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 |
Avianca | AVA | AV | No | Opens 48 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Aerolineas Argentinas | ARG | AR | Yes | No |
Copa Airlines | CMP | CM | Yes | 0 0 |
Weather in Buenos Aires
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 29°C | 21°C |
February | 28°C | 20°C |
March | 25°C | 18°C |
April | 22°C | 15°C |
May | 18°C | 12°C |
June | 14°C | 9°C |
July | 13°C | 8°C |
August | 15°C | 9°C |
September | 17°C | 11°C |
October | 20°C | 13°C |
November | 24°C | 16°C |
December | 27°C | 19°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
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