Cheap flights from St. Louis to Buenos Aires from $416

Round-trip
1 adult
Economy
From?
To?
Fri 10/29
Fri 11/5

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Lambert-St Louis to Buenos Aires.
View current Argentina travel restrictions

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$1,140The best flight deal from St. Louis to Buenos Aires found on momondo in the last 72 hours is $1,140
Fastest flight time14h 15mThe fastest flight from St. Louis to Buenos Aires takes 14h 15m
Direct flightsNoneThere 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 Aires2 airportsThere 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
Nov 16
STL4:38 amLambert-St Louis
21h 17m
1 stop
EZE1:55 amBuenos Aires Ministro Pistarini
Nov 23
EZE3:55 pmBuenos Aires Ministro Pistarini
22h 15m
1 stop
STL2:10 pmLambert-St Louis
Multiple Airlines
Jan 20
STL12:50 amLambert-St Louis
28h 40m
2 stops
AEP5:30 amBuenos Aires Jorge Newbery
Feb 12
AEP1:05 pmBuenos Aires Jorge Newbery
17h 46m
2 stops
STL6:51 amLambert-St Louis
Delta
Jan 26
STL10:45 amLambert-St Louis
14h 15m
1 stop
EZE1:00 amBuenos Aires Ministro Pistarini
Feb 8
EZE4:15 pmBuenos Aires Ministro Pistarini
20h 20m
1 stop
STL12:35 pmLambert-St Louis
United Airlines
Feb 26
STL10:15 amLambert-St Louis
39h 05m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
Mar 5
EZE5:05 pmBuenos Aires Ministro Pistarini
19h 03m
1 stop
STL12:08 pmLambert-St Louis
American Airlines
Nov 16
STL2:06 amLambert-St Louis
24h 04m
2 stops
EZE2:10 amBuenos Aires Ministro Pistarini
Nov 23
EZE3:55 pmBuenos Aires Ministro Pistarini
16h 49m
1 stop
STL8:44 amLambert-St Louis
Multiple Airlines
Jan 20
STL1:00 amLambert-St Louis
43h 20m
3 stops
EZE8:20 pmBuenos Aires Ministro Pistarini
Feb 12
EZE6:27 amBuenos Aires Ministro Pistarini
25h 18m
3 stops
STL7:45 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
Dec 10
STL1:19 amLambert-St Louis
32h 41m
2 stops
EZE10:00 amBuenos Aires Ministro Pistarini
American Airlines
Dec 10
STL4:38 amLambert-St Louis
21h 17m
1 stop
EZE1:55 amBuenos Aires Ministro Pistarini
Multiple Airlines
Dec 10
STL1:38 pmLambert-St Louis
49h 12m
3 stops
AEP2:50 pmBuenos Aires Jorge Newbery

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
Nov 1
STL3:30 amLambert-St Louis
23h 36m
1 stop
EZE3:06 amBuenos Aires Ministro Pistarini
Jan 31
EZE4:16 pmBuenos Aires Ministro Pistarini
14h 33m
1 stop
STL6:49 amLambert-St Louis
Delta
Nov 1
STL2:20 pmLambert-St Louis
34h 35m
2 stops
EZE12:55 amBuenos Aires Ministro Pistarini
Jan 31
EZE4:15 pmBuenos Aires Ministro Pistarini
19h 18m
2 stops
STL11:33 amLambert-St Louis
Copa Airlines
Nov 1
STL2:02 amLambert-St Louis
16h 15m
2 stops
EZE6:17 pmBuenos Aires Ministro Pistarini
Jan 30
EZE8:44 pmBuenos Aires Ministro Pistarini
20h 38m
2 stops
STL5:22 pmLambert-St Louis
American Airlines
Oct 29
STL12:22 pmLambert-St Louis
24h 38m
2 stops
EZE1:00 pmBuenos Aires Ministro Pistarini
Nov 5
EZE5:40 pmBuenos Aires Ministro Pistarini
16h 28m
1 stop
STL10:08 amLambert-St Louis
American Airlines
Oct 29
STL12:31 pmLambert-St Louis
24h 29m
1 stop
EZE1:00 pmBuenos Aires Ministro Pistarini
Nov 5
EZE5:40 pmBuenos Aires Ministro Pistarini
20h 30m
1 stop
STL2:10 pmLambert-St Louis
Multiple Airlines
Oct 29
STL11:15 amLambert-St Louis
53h 10m
3 stops
EZE4:25 pmBuenos Aires Ministro Pistarini
Nov 5
EZE5:40 pmBuenos Aires Ministro Pistarini
18h 18m
2 stops
STL11:58 amLambert-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
AirlineRatingFree CancellationPrice
Delta
PriceFrom $771
Free Cancellation
Rating
8.2
8.2

Boarding

8.4

Comfort

8.3

Crew

8.1

Entertainment

8.0

Food

Reviews

Great

1 / 10
Air Canada
PriceFrom $934
Free Cancellation
Rating
7.5
7.8

Boarding

7.3

Comfort

8.1

Crew

7.4

Entertainment

6.0

Food

Reviews

awesome

1 / 10
American Airlines
PriceFrom $1,084
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.1

Entertainment

6.8

Food

Reviews

Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!

1 / 10
Copa Airlines
PriceFrom $1,096
Free Cancellation
Rating
8.0
8.1

Boarding

7.8

Comfort

8.3

Crew

7.4

Entertainment

7.6

Food

Reviews

Reasonable

1 / 10
United Airlines
PriceFrom $1,177
Free Cancellation
Rating
6.9
7.3

Boarding

6.8

Comfort

7.5

Crew

6.7

Entertainment

6.2

Food

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.


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.

If you are planning to travel to Buenos Aires at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

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