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Cheap flights from Buenos Aires to St. Louis from $454

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Buenos Aires to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:25 pm - 12:26 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
17h 01m1 stop Dallas/Fort Worth
American Airlines Logo
5:00 pm - 9:10 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
13h 10m1 stop Miami
$1,158American Airlines
Thu, Nov 19 - Wed, Dec 2
American Airlines Logo
11:59 pm - 5:25 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
20h 26m1 stop Miami
American Airlines Logo
6:00 am - 8:30 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
23h 30m1 stop Dallas/Fort Worth
$1,158American Airlines
Thu, Nov 19 - Wed, Dec 2
American Airlines Logo
11:59 pm - 3:19 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
18h 20m2 stops Miami Washington, D.C. Reagan-National
American Airlines Logo
1:58 pm - 9:10 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
16h 12m2 stops Charlotte Douglas Miami
$1,162American Airlines
Thu, Nov 19 - Wed, Dec 2
American Airlines Logo
11:59 pm - 3:55 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
18h 56m2 stops Miami Charlotte Douglas
American Airlines Logo
2:54 pm - 8:30 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
14h 36m1 stop Dallas/Fort Worth
$1,162American Airlines
Thu, Nov 19 - Wed, Dec 2
Delta Logo
3:10 pm - 8:56 amEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
20h 46m2 stops Rio de Janeiro–Galeão Intl Atlanta Hartsfield-Jackson
Delta Logo
9:00 am - 9:45 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
22h 45m1 stop Atlanta Hartsfield-Jackson
$1,273Delta
Sat, Dec 5 - Wed, Apr 28
Delta Logo
3:10 pm - 8:56 amEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
20h 46m2 stops Rio de Janeiro–Galeão Intl Atlanta Hartsfield-Jackson
Delta Logo
9:00 am - 6:20 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
19h 20m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
$1,273Delta
Sat, Dec 5 - Wed, Apr 28
Delta Logo
11:35 pm - 4:28 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
19h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
10:45 am - 10:55 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
21h 10m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl
$1,282Delta
Fri, Dec 18 - Fri, Jan 8
Delta Logo
11:35 pm - 6:22 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
21h 47m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 7:35 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
22h 35m1 stop Atlanta Hartsfield-Jackson
$1,282Delta
Fri, Dec 18 - Fri, Jan 8
Delta Logo
11:35 pm - 12:05 amEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
27h 30m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:18 pm - 9:40 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
17h 22m2 stops Detroit Metropolitan Wayne County Miami
$1,320Delta
Sat, Dec 5 - Wed, Apr 28
Delta Logo
11:35 pm - 1:28 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
16h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:30 pm - 9:45 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
18h 15m1 stop Atlanta Hartsfield-Jackson
$1,320Delta
Sat, Dec 5 - Wed, Apr 28

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Delta flights from Buenos Aires to St. Louis

Our best Delta deals on Buenos Aires to St. Louis flight tickets
Delta
Sep 21
EZE8:10 pmBuenos Aires Ministro Pistarini
25h 48m
1 stop
STL7:58 pmLambert-St Louis
Sep 28
STL6:00 amLambert-St Louis
25h 45m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
$1,216
Delta
Dec 18
EZE11:35 pmBuenos Aires Ministro Pistarini
19h 53m
1 stop
STL4:28 pmLambert-St Louis
Jan 8
STL10:45 amLambert-St Louis
21h 10m
2 stops
EZE10:55 amBuenos Aires Ministro Pistarini
$1,282
Delta
Dec 5
EZE11:35 pmBuenos Aires Ministro Pistarini
16h 53m
1 stop
STL1:28 pmLambert-St Louis
Apr 28
STL1:30 pmLambert-St Louis
18h 15m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
$1,320

American Airlines flights from Buenos Aires to St. Louis

Our best American Airlines deals on Buenos Aires to St. Louis flight tickets
American Airlines
Nov 19
EZE10:25 pmBuenos Aires Ministro Pistarini
17h 01m
1 stop
STL12:26 pmLambert-St Louis
Dec 2
STL5:00 pmLambert-St Louis
13h 10m
1 stop
EZE9:10 amBuenos Aires Ministro Pistarini
$1,158
American Airlines
Nov 19
EZE11:59 pmBuenos Aires Ministro Pistarini
18h 20m
2 stops
STL3:19 pmLambert-St Louis
Dec 2
STL1:58 pmLambert-St Louis
16h 12m
2 stops
EZE9:10 amBuenos Aires Ministro Pistarini
$1,162
American Airlines
Dec 18
EZE10:30 pmBuenos Aires Ministro Pistarini
22h 36m
1 stop
STL6:06 pmLambert-St Louis
Jan 8
STL9:00 amLambert-St Louis
20h 30m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
$1,268

momondo Fare Finder

 
Use the filters below to find and compare flights from Buenos Aires to St. Louis that are best for you.

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Quickest round-trip

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Thu 11/19

10:25 pm-12:26 pm

1 stop17h 01m

Lambert-St Louis

Wed 12/2

5:00 pm-9:10 am

1 stop13h 10m

$1,158

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Thu 11/19

11:59 pm-5:25 pm

1 stop20h 26m

Lambert-St Louis

Wed 12/2

6:00 am-8:30 am

1 stop23h 30m

$1,158

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Thu 11/19

11:59 pm-3:19 pm

2 stops18h 20m

Lambert-St Louis

Wed 12/2

1:58 pm-9:10 am

2 stops16h 12m

$1,162

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Thu 11/19

11:59 pm-3:55 pm

2 stops18h 56m

Lambert-St Louis

Wed 12/2

2:54 pm-8:30 am

1 stop14h 36m

$1,162

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Sat 12/5

3:10 pm-8:56 am

2 stops20h 46m

Lambert-St Louis

Wed 4/28

9:00 am-9:45 am

1 stop22h 45m

$1,273

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Sat 12/5

3:10 pm-8:56 am

2 stops20h 46m

Lambert-St Louis

Wed 4/28

9:00 am-6:20 am

2 stops19h 20m

$1,273

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Fri 12/18

11:35 pm-4:28 pm

1 stop19h 53m

Lambert-St Louis

Fri 1/8

10:45 am-10:55 am

2 stops21h 10m

$1,282

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Fri 12/18

11:35 pm-6:22 pm

1 stop21h 47m

Lambert-St Louis

Fri 1/8

6:00 am-7:35 am

1 stop22h 35m

$1,282

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Sat 12/5

11:35 pm-12:05 am

1 stop27h 30m

Lambert-St Louis

Wed 4/28

2:18 pm-9:40 am

2 stops17h 22m

$1,320

Buenos AiresSt. Louis

EZE Buenos Aires Ministro Pistarini - STL Lambert-St Louis

EZESTL

Buenos Aires Ministro Pistarini

Sat 12/5

11:35 pm-1:28 pm

1 stop16h 53m

Lambert-St Louis

Wed 4/28

1:30 pm-9:45 am

1 stop18h 15m

$1,320

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Buenos Aires to St. Louis

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Can stopping save me money on Buenos Aires to St. Louis flights?

You could potentially save up to 32% on your flight if you consider stops on a Buenos Aires to St. Louis flight.

When to book flights from Buenos Aires to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buenos Aires to St. Louis (BUE to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buenos Aires to St. Louis

Best Price Found

$454

Fastest flight time

18h 08m

Direct flights

None
The best one-way flight to St. Louis from Buenos Aires in the past 72 hours is $454. The best round-trip flight deal from Buenos Aires to St. Louis found on momondo in the last 72 hours is $1,158.
The fastest flight from Buenos Aires to St. Louis takes 18h 08m
There are no direct flights from Buenos Aires to St. Louis. There are no popular flight routes from Buenos Aires to St. Louis.
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Frequently asked questions about flying from Buenos Aires to St. Louis

  • How far is Buenos Aires to Lambert-St Louis by plane?

    Buenos Aires and Lambert-St Louis are 5450.9 mi apart from one another. Flights usually cover this in 18h 08m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Buenos Aires to Lambert-St Louis Airport?

    Prices for flights from Buenos Aires to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Buenos Aires to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
St. Peters
Maryland Heights
Alton
Collinsville
Florissant
Hermann
Clayton
O'Fallon
Farmington
Fenton
Festus
Edwardsville
Wentzville
Eureka
Litchfield
Grafton
Waterloo

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Can I find flights from Buenos Aires to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Buenos Aires which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Buenos Aires to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Buenos Aires to St. Louis.

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Of course. momondo tracks the price of Buenos Aires to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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