Cheap flights from St. Louis (STL) to Buenos Aires (BUE) from $594
This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
How to find the cheapest flight from St. Louis (STL) to Buenos Aires (BUE)
All the information you need to plan the best STL to BUE flight in 2023: compare St. Louis to Buenos Aires flight prices with the expected peak season, weather and rainfall in Buenos Aires.
Popular in | July |
|---|---|
Cheapest in | June |
Round-trip from | $816 |
One-way from | $796 |
STL - BUE Price | $816 - $1,561 |
|---|---|
BUE Temperature | 51.8 - 77 °F |
BUE Rainfall | 2 - 3.9 inches |
What is the cheapest day to fly round-trip from St. Louis to Buenos Aires?
Wednesday flights are generally found to be more expensive for flights from St. Louis to Buenos Aires. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Buenos Aires.
How far in advance should I book a flight from St. Louis to Buenos Aires?
To save up to 19% on this flight, we recommend booking at least 22 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to Buenos Aires from $1,405 1-2 weeks out and tickets from $1,608 for flights departing within the next 72 hours.
What is the cheapest month to fly from St. Louis to Buenos Aires?
June is one of the best times of the year to fly to Buenos Aires from St. Louis. Prices for June average $1,331 per person but you can even find prices for as low as $904. The most expensive prices can be found in the month of July. Opting for a June flight can save you 31% on your journey compared to booking in July
When is the cheapest time to fly from St. Louis to Buenos Aires (STL - BUE)?
Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from St. Louis to Buenos Aires by exploring options for tickets in the afternoon.
Cheap American Airlines flights from St. Louis to Buenos Aires
Peruse some of the lowest-priced American Airlines flights we've found from St. Louis to Buenos Aires. It's recommended that users confirm their flight details before booking.
Cheap United Airlines flights from St. Louis to Buenos Aires
Browse through some of the cheapest United Airlines flights traveling from St. Louis to Buenos Aires. Check back soon if you're not seeing flights that suit your needs.
St. Louis to Buenos Aires 2023 flight deals
Cheap flights to Buenos Aires from St. Louis found for this year
These are some of the best deals we've found on flights to Buenos Aires in 2023 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
One-way flights to Buenos Aires from St. Louis
The cheapest one-way flights from St. Louis to Buenos Aires
Take a look at some of the one-way flights we've detected from St. Louis to Buenos Aires. Users in need of a round-trip flight from St. Louis to Buenos Aires instead should update the search form at the top of page.
Find flights from St. Louis to Buenos Aires within your budget
Use the slider to find flights from St. Louis to Buenos Aires that fit your budget.
Fly from
Fly to
Budget
$917 - $1,661
Route
Depart
Return
Price
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Mon 2/26
1 stop13h 05m
Buenos Aires Ministro Pistarini
Tue 3/19
1 stop13h 46m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Thu 2/22
2 stops17h 06m
Buenos Aires Ministro Pistarini
Tue 3/12
2 stops19h 24m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Mon 2/26
2 stops17h 06m
Buenos Aires Ministro Pistarini
Tue 3/19
2 stops19h 05m
Lambert-St LouisBuenos Aires Jorge Newbery
STL - AEP
STLAEP
Lambert-St Louis
Wed 11/22
2 stops19h 45m
Buenos Aires Jorge Newbery
Wed 11/29
2 stops20h 33m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Wed 11/22
1 stop12h 55m
Buenos Aires Ministro Pistarini
Wed 11/29
1 stop20h 15m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Sun 11/5
2 stops36h 41m
Buenos Aires Ministro Pistarini
Mon 11/13
2 stops24h 34m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Wed 12/20
1 stop17h 10m
Buenos Aires Ministro Pistarini
Wed 1/10
1 stop24h 01m
Lambert-St LouisBuenos Aires Ministro Pistarini
STL - EZE
STLEZE
Lambert-St Louis
Wed 11/22
3 stops42h 26m
Buenos Aires Ministro Pistarini
Wed 11/29
2 stops20h 03m
Lambert-St LouisBuenos Aires Jorge Newbery
STL - AEP
STLAEP
Lambert-St Louis
Mon 1/15
2 stops26h 50m
Buenos Aires Jorge Newbery
Thu 2/1
2 stops21h 39m
Reviews of airlines servicing Buenos Aires
Get a feel of what it's like to fly with American Airlines, United Airlines and Spirit Airlines from St. Louis to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Crew
Food
Boarding
Entertainment
Overall
Comfort
Reviews
The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Related info for your journey
Useful info, stats and facts about St. Louis to Buenos Aires flights.
What airport do you fly from for flights from St. Louis to Buenos Aires?
Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Buenos Aires from St. Louis. Booking flights from Lambert-St Louis (STL) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 4 different airlines.
Can I find flights from St. Louis to Buenos Aires for under $1,000 on Cheapflights?
Yes, there are multiple flights from St. Louis to Buenos Aires for under $1,000. The cheapest flight booked recently is on Delta for just $917, but on average you can expect to pay $1,009.
What are the cheapest airlines flying from St. Louis to Buenos Aires round-trip?
Currently priced at $917, Delta will fly you from St. Louis to Buenos Aires and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and LATAM Airlines - these airlines can fly you to your destination from $919 and $954, respectively. These flights start at 31% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from St. Louis to Buenos Aires one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $675. However, be on the lookout for offers from Delta and LATAM Airlines, as they are both options that can get you from St. Louis to Buenos Aires for a low price.
What are the most popular airlines that fly from St. Louis to Buenos Aires?
Consider American Airlines, Copa Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Buenos Aires.
What does STL to EZE mean?
This is defined as Lambert-St Louis Airport (STL) and Buenos Aires Ministro Pistarini Airport (EZE). Codes like Buenos Aires Ministro Pistarini Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Buenos Aires Jorge Newbery Airport (AEP).