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Cheap flights from Argentina to St. Louis from $398

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 2/14. 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
0 bags

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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
9:25 pm - 10:32 am
EZE
-
STL
16h 07m
1 stop
American Airlines Logo
9:40 am - 7:10 am
STL
-
EZE
19h 30m
1 stop
$1,127American Airlines
Thu, Feb 26 - Mon, May 25
American Airlines Logo
9:25 pm - 1:43 pm
EZE
-
STL
19h 18m
2 stops
American Airlines Logo
8:15 am - 7:10 am
STL
-
EZE
20h 55m
1 stop
$1,131American Airlines
Thu, Feb 26 - Mon, May 25
United Airlines Logo
10:05 pm - 2:29 pm
EZE
-
STL
19h 24m
2 stops
United Airlines Logo
10:23 am - 8:00 am
STL
-
EZE
19h 37m
2 stops
$1,257United Airlines
Thu, Feb 26 - Mon, May 25
LATAM Airlines Logo
7:35 am - 11:58 pm
EZE
-
STL
18h 23m
2 stops
LATAM Airlines Logo
1:30 pm - 9:45 am
STL
-
EZE
18h 15m
1 stop
$1,276LATAM Airlines
Wed, Apr 1 - Wed, Jun 10
LATAM Airlines Logo
11:30 am - 5:53 pm
EZE
-
STL
32h 23m
2 stops
LATAM Airlines Logo
5:30 pm - 11:30 am
STL
-
EZE
16h 00m
2 stops
$1,278LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
11:30 am - 11:09 am
EZE
-
STL
25h 39m
2 stops
LATAM Airlines Logo
9:00 am - 6:10 am
STL
-
EZE
19h 10m
2 stops
$1,279LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
7:35 am - 9:05 am
EZE
-
STL
27h 30m
2 stops
LATAM Airlines Logo
5:30 pm - 9:00 pm
STL
-
EZE
25h 30m
2 stops
$1,280LATAM Airlines
Mon, Apr 6 - Wed, Jun 10
LATAM Airlines Logo
11:30 am - 9:05 am
EZE
-
STL
23h 35m
2 stops
LATAM Airlines Logo
7:05 pm - 6:50 pm
STL
-
EZE
21h 45m
2 stops
$1,281LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
1:20 pm - 5:53 pm
EZE
-
STL
30h 33m
2 stops
LATAM Airlines Logo
1:30 pm - 8:35 am
STL
-
EZE
17h 05m
2 stops
$1,284LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
Multiple Airlines Logo
11:15 am - 3:29 pm
EZE
-
STL
31h 14m
3 stops
Multiple Airlines Logo
1:00 pm - 1:20 am
STL
-
EZE
34h 20m
3 stops
$1,327Multiple Airlines
Thu, Feb 26 - Mon, May 25

LATAM Airlines flights from Argentina to St. Louis

Our best LATAM Airlines deals on Argentina to St. Louis flight tickets
LATAM Airlines
Apr 1
EZE7:35 amBuenos Aires Ministro Pistarini
18h 23m
2 stops
STL11:58 pmLambert-St Louis
Jun 10
STL1:30 pmLambert-St Louis
20h 00m
2 stops
EZE11:30 amBuenos Aires Ministro Pistarini
$1,276
LATAM Airlines
Apr 7
EZE11:30 amBuenos Aires Ministro Pistarini
32h 23m
2 stops
STL5:53 pmLambert-St Louis
Jun 11
STL5:30 pmLambert-St Louis
16h 00m
2 stops
EZE11:30 amBuenos Aires Ministro Pistarini
$1,278
LATAM Airlines
Apr 7
EZE11:30 amBuenos Aires Ministro Pistarini
25h 39m
2 stops
STL11:09 amLambert-St Louis
Jun 11
STL9:00 amLambert-St Louis
19h 10m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
$1,279

Delta flights from Argentina to St. Louis

Our best Delta deals on Argentina to St. Louis flight tickets
Delta
Apr 7
EZE8:10 pmBuenos Aires Ministro Pistarini
22h 06m
1 stop
STL4:16 pmLambert-St Louis
Jun 11
STL5:30 pmLambert-St Louis
14h 15m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
$1,435
Delta
Apr 7
EZE8:10 pmBuenos Aires Ministro Pistarini
16h 59m
1 stop
STL11:09 amLambert-St Louis
Jun 11
STL7:05 pmLambert-St Louis
12h 40m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
$1,437
Delta
Apr 7
EZE8:10 pmBuenos Aires Ministro Pistarini
14h 55m
1 stop
STL9:05 amLambert-St Louis
Jun 11
STL7:05 pmLambert-St Louis
12h 40m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
$1,439

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 February 5, 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

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 2/26

9:25 pm-10:32 am

1 stop16h 07m

Lambert-St Louis

Mon 5/25

9:40 am-7:10 am

1 stop19h 30m

$1,127

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 2/26

9:25 pm-1:43 pm

2 stops19h 18m

Lambert-St Louis

Mon 5/25

8:15 am-7:10 am

1 stop20h 55m

$1,131

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 2/26

10:05 pm-2:29 pm

2 stops19h 24m

Lambert-St Louis

Mon 5/25

10:23 am-8:00 am

2 stops19h 37m

$1,257

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 4/1

7:35 am-11:58 pm

2 stops18h 23m

Lambert-St Louis

Wed 6/10

1:30 pm-9:45 am

1 stop18h 15m

$1,276

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

11:30 am-5:53 pm

2 stops32h 23m

Lambert-St Louis

Thu 6/11

5:30 pm-11:30 am

2 stops16h 00m

$1,278

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

11:30 am-11:09 am

2 stops25h 39m

Lambert-St Louis

Thu 6/11

9:00 am-6:10 am

2 stops19h 10m

$1,279

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Mon 4/6

7:35 am-9:05 am

2 stops27h 30m

Lambert-St Louis

Wed 6/10

5:30 pm-9:00 pm

2 stops25h 30m

$1,280

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

11:30 am-9:05 am

2 stops23h 35m

Lambert-St Louis

Thu 6/11

7:05 pm-6:50 pm

2 stops21h 45m

$1,281

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

1:20 pm-5:53 pm

2 stops30h 33m

Lambert-St Louis

Thu 6/11

1:30 pm-8:35 am

2 stops17h 05m

$1,284

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 2/26

11:15 am-3:29 pm

3 stops31h 14m

Lambert-St Louis

Mon 5/25

1:00 pm-1:20 am

3 stops34h 20m

$1,327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

18h 43m

Direct flights

None
The fastest flight from Argentina to St. Louis takes 18h 43m
There are no direct flights from Argentina to St. Louis. There are no popular flight routes from Argentina to St. Louis.
Search flight deals

  • 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.

  • How do I get Price Alerts for flights from Argentina to St. Louis?

    Confirm your travel details to search for the latest offers for flights from Argentina to St. Louis. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Argentina to St. Louis with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near St. Louis?

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