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Latest Flight Deals from St. Louis to Buenos Aires
Book one-way or return flights from St. Louis to Buenos Aires from as little as €634. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- STL06:0819h 22m1 stopEZE03:30Tue, Aug 6|St. Louis - Buenos Aires|United Airlines€634€84925% OFF25% OFF€849€634
- STL06:0019h 30m1 stopEZE03:30Tue, Jul 2|St. Louis - Buenos Aires|Delta Air Lines€635€84925% OFF25% OFF€849€635
- STL06:0819h 22m1 stopEZE03:30Tue, Jul 2|St. Louis - Buenos Aires|United Airlines€666€84921% OFF21% OFF€849€666
- STL17:0312h 57m1 stopEZE08:00Sun, Jul 21|St. Louis - Buenos Aires|United Airlines€687€687
- STL13:003h 5mDirectBUE14:00Fri, Jul 5|St. Louis - Buenos Aires|United AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Searching for the best last minute flight from St. Louis to Buenos Aires? Find one-way or return flights that are affordable and fit your itinerary.
Trip.com monitors the ticket fares of flights from St. Louis to Buenos Aires. Stay updated on price trends and snag the best deals for your upcoming trip.
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View airlines operating flights from St. Louis to Buenos Aires. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
![United Airlines](https://pic.tripcdn.com/airline_logo/3x/ua.png?proc=resize/m_w,w_600,h_600,B0B3)
![Delta Air Lines](https://pic.tripcdn.com/airline_logo/3x/dl.png?proc=resize/m_w,w_600,h_600,B0B3)
![LATAM Airlines](https://pic.tripcdn.com/airline_logo/3x/la.png?proc=resize/m_w,w_600,h_600,B0B3)
![Air Canada](https://pic.tripcdn.com/airline_logo/3x/ac.png?proc=resize/m_w,w_600,h_600,B0B3)
![Copa Airlines](https://pic.tripcdn.com/airline_logo/3x/cm.png?proc=resize/m_w,w_600,h_600,B0B3)
![American Airlines](https://pic.tripcdn.com/airline_logo/3x/aa.png?proc=resize/m_w,w_600,h_600,B0B3)
![Frontier Airlines](https://pic.tripcdn.com/airline_logo/3x/f9.png?proc=resize/m_w,w_600,h_600,B0B3)
![Southwest Airlines](https://pic.tripcdn.com/airline_logo/3x/wn.png?proc=resize/m_w,w_600,h_600,B0B3)
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Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Buenos Aires.
- CheapestSTL06:2020h 15m2 transferEZE04:35St.Louis Lambert International Airport - Ministro Pistarini International AirportMon, Aug 12United Airlines€456
- STL06:0023h 15m2 transferAEP07:15St.Louis Lambert International Airport - Jorge Newbery AirportTue, Aug 13Delta Air Lines€641
- STL06:0023h 15m2 transferAEP07:15St.Louis Lambert International Airport - Jorge Newbery AirportTue, Aug 13Delta Air Lines€641Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from St. Louis to Buenos Aires
Cheapest nonstop flight price | €634 |
---|---|
Off-season for travel | May |
Peak season for travel | July |
Flight distance | 8,772.99km |
Popular airline | United Airlines |
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