Flight information for St. Louis to Buenos Aires
(STL to BUE)
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Buenos Aires
| Best Price Found | $1,140 | The best flight deal from St. Louis to Buenos Aires found on momondo in the last 72 hours is $1,140 |
| Fastest flight time | 14h 15m | The fastest flight from St. Louis to Buenos Aires takes 14h 15m |
| Direct flights | None | There are no direct flights from St. Louis to Buenos Aires. Popular non-direct routes for this connection are Lambert-St Louis Airport - Buenos Aires Ministro Pistarini Airport and Lambert-St Louis Airport - Buenos Aires Jorge Newbery Airport. |
| Airports in Buenos Aires | 2 airports | There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP) |
How to get the cheapest flight ticket from St. Louis to Buenos Aires
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from St. Louis to Buenos Aires?
July
The cheapest time of year to fly to Buenos Aires from St. Louis is July. Most expensive is August
What is the cheapest day to depart St. Louis for Buenos Aires?
Thursday
The cheapest day of the week is typically Thursday. The most expensive is typically Tuesday
When is the cheapest time to fly from St. Louis to Buenos Aires?
in the morning
St. Louis to Buenos Aires flights are approximately 8% more expensive in the afternoon than in the morning
What is the cheapest airline that flies to Buenos Aires from St. Louis?
Delta
Air Canada, American Airlines, and Copa Airlines are the most popular carriers operating from St. Louis to Buenos Aires
What is the cheapest St. Louis to Buenos Aires flight route?
Lambert-St Louis - Buenos Aires Jorge Newbery
Fly from Lambert-St Louis to Buenos Aires Jorge Newbery for the best St. Louis - Buenos Aires flight prices
How far in advance should you book St. Louis to Buenos Aires flights?
38 days before
The cheapest time to buy a flight from St. Louis to Buenos Aires is approximately 38 days to departure
Easily compare round-trip flights from St. Louis to Buenos Aires
Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Buenos Aires by changing tabs
American Airlines![American Airlines]()
Nov 16![American Airlines]()
Nov 23
STL4:38 amLambert-St Louis
21h 17m
1 stop
EZE1:55 amBuenos Aires Ministro Pistarini
EZE3:55 pmBuenos Aires Ministro Pistarini
22h 15m
1 stop
STL2:10 pmLambert-St Louis
Multiple Airlines![Multiple Airlines]()
Jan 20![Multiple Airlines]()
Feb 12
STL12:50 amLambert-St Louis
28h 40m
2 stops
AEP5:30 amBuenos Aires Jorge Newbery
AEP1:05 pmBuenos Aires Jorge Newbery
17h 46m
2 stops
STL6:51 amLambert-St Louis
Delta![Delta]()
Jan 26![Delta]()
Feb 8
STL10:45 amLambert-St Louis
14h 15m
1 stop
EZE1:00 amBuenos Aires Ministro Pistarini
EZE4:15 pmBuenos Aires Ministro Pistarini
20h 20m
1 stop
STL12:35 pmLambert-St Louis
United Airlines![United Airlines]()
Feb 26![United Airlines]()
Mar 5
STL10:15 amLambert-St Louis
39h 05m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
EZE5:05 pmBuenos Aires Ministro Pistarini
19h 03m
1 stop
STL12:08 pmLambert-St Louis
American Airlines![American Airlines]()
Nov 16![American Airlines]()
Nov 23
STL2:06 amLambert-St Louis
24h 04m
2 stops
EZE2:10 amBuenos Aires Ministro Pistarini
EZE3:55 pmBuenos Aires Ministro Pistarini
16h 49m
1 stop
STL8:44 amLambert-St Louis
Find the cheapest one-way flights from St. Louis to Buenos Aires
If you're looking for one-way flights from St. Louis to Buenos Aires, view some of our deals below provided by American Airlines
Multiple Airlines![Multiple Airlines]()
Dec 10
STL1:19 amLambert-St Louis
32h 41m
2 stops
EZE10:00 amBuenos Aires Ministro Pistarini
American Airlines![American Airlines]()
Dec 10
STL4:38 amLambert-St Louis
21h 17m
1 stop
EZE1:55 amBuenos Aires Ministro Pistarini
Search last-minute flights to Buenos Aires from St. Louis
Find and compare flight prices for your last-minute flight from St. Louis to Buenos Aires
American Airlines![American Airlines]()
Nov 1![American Airlines]()
Jan 31
STL3:30 amLambert-St Louis
23h 36m
1 stop
EZE3:06 amBuenos Aires Ministro Pistarini
EZE4:16 pmBuenos Aires Ministro Pistarini
14h 33m
1 stop
STL6:49 amLambert-St Louis
Delta![Delta]()
Nov 1![Delta]()
Jan 31
STL2:20 pmLambert-St Louis
34h 35m
2 stops
EZE12:55 amBuenos Aires Ministro Pistarini
EZE4:15 pmBuenos Aires Ministro Pistarini
19h 18m
2 stops
STL11:33 amLambert-St Louis
Copa Airlines![Copa Airlines]()
Nov 1![Copa Airlines]()
Jan 30
STL2:02 amLambert-St Louis
16h 15m
2 stops
EZE6:17 pmBuenos Aires Ministro Pistarini
EZE8:44 pmBuenos Aires Ministro Pistarini
20h 38m
2 stops
STL5:22 pmLambert-St Louis
American Airlines![American Airlines]()
Oct 29![American Airlines]()
Nov 5
STL12:22 pmLambert-St Louis
24h 38m
2 stops
EZE1:00 pmBuenos Aires Ministro Pistarini
EZE5:40 pmBuenos Aires Ministro Pistarini
16h 28m
1 stop
STL10:08 amLambert-St Louis
American Airlines![American Airlines]()
Oct 29![American Airlines]()
Nov 5
STL12:31 pmLambert-St Louis
24h 29m
1 stop
EZE1:00 pmBuenos Aires Ministro Pistarini
EZE5:40 pmBuenos Aires Ministro Pistarini
20h 30m
1 stop
STL2:10 pmLambert-St Louis
Best airlines flying from St. Louis to Buenos Aires
Compare and see reviews for airlines that fly from St. Louis to Buenos Aires with momondo
AirlineFree CancellationPrice
PriceFrom $771
Free Cancellation
Reviews
Great
1 / 10
PriceFrom $934
Free Cancellation
Reviews
awesome
1 / 10
PriceFrom $1,084
Free Cancellation
Reviews
Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!
1 / 10
PriceFrom $1,096
Free Cancellation
Reviews
Reasonable
1 / 10
PriceFrom $1,177
Free Cancellation
Reviews
People were not wearing masks and it was not being enforced by the aircrew
1 / 10
Are airlines flying from Lambert-St Louis to Buenos Aires offering flexible cancellation due to COVID-19?
To ease the stress of booking flights, some of our airline partners flying from Lambert-St Louis to Buenos Aires are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: American Airlines, Delta, and United Airlines.
How far is Lambert-St Louis to Buenos Aires by plane?
The straight-line distance from Lambert-St Louis to Buenos Aires is 5450.9 mi. Typically, this will take 12h 59m by plane in normal conditions.
Can I fly to Buenos Aires from Lambert-St Louis right now?
Information is based on travel restrictions from Lambert-St Louis to Buenos Aires
Most visitors from Lambert-St Louis will not be allowed to enter Buenos Aires.
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Buenos Aires.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Buenos Aires.
Documents
Contact-Tracing App - Must be downloaded for a minimum period of 14 days.
Most visitors from Lambert-St Louis will not be allowed to enter Buenos Aires.
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Buenos Aires.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Buenos Aires.
Documents
Contact-Tracing App - Must be downloaded for a minimum period of 14 days.
Can I fly back to Lambert-St Louis from Buenos Aires?
Returning to Lambert-St Louis from Buenos Aires
COVID-19 testing requirements
Visitors from Buenos Aires must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Buenos Aires are not required to quarantine after entering Lambert-St Louis.
COVID-19 testing requirements
Visitors from Buenos Aires must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Buenos Aires are not required to quarantine after entering Lambert-St Louis.