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Cheap flights from Argentina to St. Louis from $497

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Argentina to St. Louis departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Argentina to St. Louis

Recent round-trip flight deals from Argentina to St. Louis

Enter your travel dates to find the best prices.
American Airlines Logo
10:30 pm - 10:45 am
EZE
-
STL
14h 15m
1 stop
American Airlines Logo
11:35 am - 8:45 am
STL
-
EZE
19h 10m
1 stop
$1,001American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
10:30 pm - 1:02 pm
EZE
-
STL
16h 32m
2 stops
American Airlines Logo
3:25 pm - 8:45 am
STL
-
EZE
15h 20m
2 stops
$1,005American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
9:50 pm - 9:49 pm
EZE
-
STL
25h 59m
1 stop
American Airlines Logo
5:00 am - 7:15 am
STL
-
EZE
24h 15m
1 stop
$1,008American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
9:50 pm - 5:30 pm
EZE
-
STL
21h 40m
2 stops
American Airlines Logo
5:10 pm - 8:30 am
STL
-
EZE
13h 20m
1 stop
$1,013American Airlines
Tue, Sep 8 - Tue, Sep 15
LATAM Airlines Logo
8:10 pm - 8:19 am
EZE
-
STL
14h 09m
1 stop
LATAM Airlines Logo
11:00 am - 6:10 am
STL
-
EZE
17h 10m
2 stops
$1,131LATAM Airlines
Thu, Jul 30 - Fri, Aug 14
LATAM Airlines Logo
7:35 am - 11:53 pm
EZE
-
STL
18h 18m
2 stops
LATAM Airlines Logo
11:00 am - 6:10 am
STL
-
EZE
17h 10m
2 stops
$1,245LATAM Airlines
Thu, Jul 30 - Fri, Aug 14
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,269Air Canada
Wed, Aug 12 - Wed, Aug 19
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
3 stops
$1,277Air Canada
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
7:35 am - 11:53 pm
EZE
-
STL
18h 18m
2 stops
Multiple Airlines Logo
5:23 pm - 11:30 am
STL
-
EZE
16h 07m
2 stops
$1,413Multiple Airlines
Wed, Jul 22 - Wed, Aug 5
United Airlines Logo
9:00 pm - 2:17 pm
EZE
-
STL
19h 17m
2 stops
United Airlines Logo
3:12 pm - 8:00 am
STL
-
EZE
14h 48m
1 stop
$1,434United Airlines
Thu, Sep 24 - Mon, Sep 28

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LATAM Airlines flights from Argentina to St. Louis

Our best LATAM Airlines deals on Argentina to St. Louis flight tickets
LATAM Airlines
Jul 30
EZE8:10 pmBuenos Aires Ministro Pistarini
14h 09m
1 stop
STL8:19 amLambert-St Louis
Aug 14
STL11:00 amLambert-St Louis
17h 10m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
$1,131
LATAM Airlines
Jul 30
EZE7:35 amBuenos Aires Ministro Pistarini
18h 18m
2 stops
STL11:53 pmLambert-St Louis
Aug 14
STL11:00 amLambert-St Louis
17h 10m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
$1,245
LATAM Airlines
Nov 24
EZE4:00 amBuenos Aires Ministro Pistarini
22h 39m
2 stops
STL11:39 pmLambert-St Louis
Nov 29
STL11:51 amLambert-St Louis
27h 54m
2 stops
EZE6:45 pmBuenos Aires Ministro Pistarini
$1,486

American Airlines flights from Argentina to St. Louis

Our best American Airlines deals on Argentina to St. Louis flight tickets
American Airlines
Aug 12
EZE10:30 pmBuenos Aires Ministro Pistarini
14h 15m
1 stop
STL10:45 amLambert-St Louis
Aug 19
STL11:35 amLambert-St Louis
19h 10m
1 stop
EZE8:45 amBuenos Aires Ministro Pistarini
$1,001
American Airlines
Aug 12
EZE10:30 pmBuenos Aires Ministro Pistarini
16h 32m
2 stops
STL1:02 pmLambert-St Louis
Aug 19
STL3:25 pmLambert-St Louis
15h 20m
2 stops
EZE8:45 amBuenos Aires Ministro Pistarini
$1,005
American Airlines
Sep 8
EZE9:50 pmBuenos Aires Ministro Pistarini
25h 59m
1 stop
STL9:49 pmLambert-St Louis
Sep 15
STL5:00 amLambert-St Louis
24h 15m
1 stop
EZE7:15 amBuenos Aires Ministro Pistarini
$1,008

momondo Fare Finder

 
Customize your flight search to find flights from Argentina to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 29, 2026.
Use the filters below to find and compare flights from Argentina to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 8/12

10:30 pm-10:45 am

1 stop14h 15m

Lambert-St Louis

Wed 8/19

11:35 am-8:45 am

1 stop19h 10m

$1,001

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 8/12

10:30 pm-1:02 pm

2 stops16h 32m

Lambert-St Louis

Wed 8/19

3:25 pm-8:45 am

2 stops15h 20m

$1,005

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 9/8

9:50 pm-9:49 pm

1 stop25h 59m

Lambert-St Louis

Tue 9/15

5:00 am-7:15 am

1 stop24h 15m

$1,008

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 9/8

9:50 pm-5:30 pm

2 stops21h 40m

Lambert-St Louis

Tue 9/15

5:10 pm-8:30 am

1 stop13h 20m

$1,013
Quickest round-trip

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 7/30

8:10 pm-8:19 am

1 stop14h 09m

Lambert-St Louis

Fri 8/14

11:00 am-6:10 am

2 stops17h 10m

$1,131

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 7/30

7:35 am-11:53 pm

2 stops18h 18m

Lambert-St Louis

Fri 8/14

11:00 am-6:10 am

2 stops17h 10m

$1,245

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 8/12

4:35 pm-6:42 pm

3 stops52h 07m

Lambert-St Louis

Wed 8/19

12:10 pm-2:30 pm

2 stops24h 20m

$1,269

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 8/12

4:35 pm-6:42 pm

3 stops52h 07m

Lambert-St Louis

Wed 8/19

12:10 pm-2:30 pm

3 stops24h 20m

$1,277

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 7/22

7:35 am-11:53 pm

2 stops18h 18m

Lambert-St Louis

Wed 8/5

5:23 pm-11:30 am

2 stops16h 07m

$1,413

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 9/24

9:00 pm-2:17 pm

2 stops19h 17m

Lambert-St Louis

Mon 9/28

3:12 pm-8:00 am

1 stop14h 48m

$1,434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Argentina to St. Louis

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

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

You could potentially save up to 7% on your flight if you consider stops on a Argentina to St. Louis flight.

Cheap Argentina to St. Louis flight deals and tips

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

Fastest flight time

13h 58m

Direct flights

None
The fastest flight from Argentina to St. Louis takes 13h 58m
There are no direct flights from Argentina to St. Louis. There are no popular flight routes from Argentina to St. Louis.
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Frequently asked questions about flying from Argentina to St. Louis

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

    Prices for flights from Argentina to Lambert-St Louis Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Argentina to Lambert-St Louis Airport.

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

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Fenton
Farmington
Wentzville
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Argentina to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Argentina to St. Louis. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Argentina with this policy.

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

Once you have performed a search for Argentina to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Argentina to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Argentina to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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