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Cheap flights from Argentina to St. Louis from $586

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 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
United Airlines Logo
11:55 pm - 10:00 pm
EZE
-
STL
25h 05m2 stops
United Airlines Logo
4:39 pm - 9:20 am
STL
-
EZE
13h 41m1 stop
$1,215United Airlines
jue., feb. 19 - lun., feb. 23
United Airlines Logo
11:55 pm - 3:38 pm
EZE
-
STL
18h 43m1 stop
United Airlines Logo
4:39 pm - 9:20 am
STL
-
EZE
13h 41m1 stop
$1,217United Airlines
jue., feb. 19 - lun., feb. 23
LATAM Airlines Logo
8:10 pm - 8:52 am
EZE
-
STL
14h 42m1 stop
LATAM Airlines Logo
5:30 pm - 12:22 pm
STL
-
EZE
16h 52m2 stops
$1,224LATAM Airlines
mar., abr. 7 - jue., jun. 11
LATAM Airlines Logo
7:35 am - 11:36 am
EZE
-
STL
30h 01m3 stops
LATAM Airlines Logo
1:30 pm - 9:00 pm
STL
-
EZE
29h 30m2 stops
$1,227LATAM Airlines
mié., abr. 1 - mié., jun. 10
LATAM Airlines Logo
8:10 pm - 8:52 am
EZE
-
STL
14h 42m1 stop
LATAM Airlines Logo
5:30 pm - 12:22 pm
STL
-
EZE
16h 52m2 stops
$1,231LATAM Airlines
mar., abr. 7 - jue., jun. 11
LATAM Airlines Logo
1:20 pm - 11:36 am
EZE
-
STL
24h 16m2 stops
LATAM Airlines Logo
7:05 pm - 8:35 am
STL
-
EZE
35h 30m2 stops
$1,235LATAM Airlines
mié., abr. 1 - mié., jun. 10
LATAM Airlines Logo
7:35 am - 11:36 am
EZE
-
STL
30h 01m3 stops
LATAM Airlines Logo
7:05 pm - 8:35 am
STL
-
EZE
35h 30m2 stops
$1,238LATAM Airlines
mié., abr. 1 - mié., jun. 10
LATAM Airlines Logo
3:55 am - 8:52 am
EZE
-
STL
30h 57m2 stops
LATAM Airlines Logo
5:30 pm - 9:00 pm
STL
-
EZE
25h 30m2 stops
$1,280LATAM Airlines
mar., mar. 31 - dom., jun. 14
LATAM Airlines Logo
7:35 am - 8:52 am
EZE
-
STL
27h 17m3 stops
LATAM Airlines Logo
5:30 pm - 9:00 pm
STL
-
EZE
25h 30m2 stops
$1,283LATAM Airlines
mié., abr. 1 - dom., jun. 14
LATAM Airlines Logo
1:20 pm - 11:45 am
EZE
-
STL
24h 25m2 stops
LATAM Airlines Logo
5:30 pm - 6:21 pm
STL
-
EZE
22h 51m2 stops
$1,284LATAM Airlines
lun., abr. 6 - sáb., jun. 13

United Airlines flights from Argentina to St. Louis

Our best United Airlines deals on Argentina to St. Louis flight tickets
United Airlines
Feb 19
EZE11:55 pmBuenos Aires Ministro Pistarini
25h 05m
2 stops
STL10:00 pmLambert-St Louis
Feb 23
STL4:39 pmLambert-St Louis
13h 41m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
$1,215
Find similar
United Airlines
Feb 19
EZE11:55 pmBuenos Aires Ministro Pistarini
18h 43m
1 stop
STL3:38 pmLambert-St Louis
Feb 23
STL4:39 pmLambert-St Louis
13h 41m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
$1,217
Find similar
United Airlines
Feb 19
EZE10:05 pmBuenos Aires Ministro Pistarini
19h 24m
2 stops
STL2:29 pmLambert-St Louis
Feb 23
STL8:21 amLambert-St Louis
19h 59m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
$1,354
Find similar

LATAM Airlines flights from Argentina to St. Louis

Our best LATAM Airlines deals on Argentina to St. Louis flight tickets
LATAM Airlines
Apr 7
EZE8:10 pmBuenos Aires Ministro Pistarini
14h 42m
1 stop
STL8:52 amLambert-St Louis
Jun 11
STL5:30 pmLambert-St Louis
16h 52m
2 stops
EZE12:22 pmBuenos Aires Ministro Pistarini
$1,224
Find similar
LATAM Airlines
Apr 1
EZE7:35 amBuenos Aires Ministro Pistarini
30h 01m
3 stops
STL11:36 amLambert-St Louis
Jun 10
STL1:30 pmLambert-St Louis
29h 30m
2 stops
EZE9:00 pmBuenos Aires Ministro Pistarini
$1,227
Find similar
LATAM Airlines
Apr 7
EZE8:10 pmBuenos Aires Ministro Pistarini
14h 42m
1 stop
STL8:52 amLambert-St Louis
Jun 11
STL5:30 pmLambert-St Louis
16h 52m
2 stops
EZE12:22 pmBuenos Aires Ministro Pistarini
$1,231
Find similar

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 diciembre 11, 2025.
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

jue. 2/19

11:55 pm-10:00 pm

2 stops25h 05m

Lambert-St Louis

lun. 2/23

4:39 pm-9:20 am

1 stop13h 41m

$1,215

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

jue. 2/19

11:55 pm-3:38 pm

1 stop18h 43m

Lambert-St Louis

lun. 2/23

4:39 pm-9:20 am

1 stop13h 41m

$1,217

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mar. 4/7

8:10 pm-8:52 am

1 stop14h 42m

Lambert-St Louis

jue. 6/11

5:30 pm-12:22 pm

2 stops16h 52m

$1,224

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mié. 4/1

7:35 am-11:36 am

3 stops30h 01m

Lambert-St Louis

mié. 6/10

1:30 pm-9:00 pm

2 stops29h 30m

$1,227

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mar. 4/7

8:10 pm-8:52 am

1 stop14h 42m

Lambert-St Louis

jue. 6/11

5:30 pm-12:22 pm

2 stops16h 52m

$1,231

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mié. 4/1

1:20 pm-11:36 am

2 stops24h 16m

Lambert-St Louis

mié. 6/10

7:05 pm-8:35 am

2 stops35h 30m

$1,235

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mié. 4/1

7:35 am-11:36 am

3 stops30h 01m

Lambert-St Louis

mié. 6/10

7:05 pm-8:35 am

2 stops35h 30m

$1,238

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mar. 3/31

3:55 am-8:52 am

2 stops30h 57m

Lambert-St Louis

dom. 6/14

5:30 pm-9:00 pm

2 stops25h 30m

$1,280

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

mié. 4/1

7:35 am-8:52 am

3 stops27h 17m

Lambert-St Louis

dom. 6/14

5:30 pm-9:00 pm

2 stops25h 30m

$1,283

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

lun. 4/6

1:20 pm-11:45 am

2 stops24h 25m

Lambert-St Louis

sáb. 6/13

5:30 pm-6:21 pm

2 stops22h 51m

$1,284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Monday when prices can be found for as low as $958. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,214. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Argentina in the morning is the least expensive time of day to depart. momondo users have found prices as low as $958 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,171 per ticket.

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

You could potentially save up to 9% 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

14h 42m

Direct flights

None
The fastest flight from Argentina to St. Louis takes 14h 42m
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.

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
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
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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