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

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

How many operators does momondo search for flights from Lambert-St Louis Airport to Argentina?

There are 2 operators available for flights from Lambert-St Louis Airport to Argentina as of May 2026.

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

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 Lambert-St Louis Airport to Argentina.

What documentation or ID do you need to fly to Argentina?

The required travel and health documents for your Argentina 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 Argentina. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,147 Cheap Flights from St. Louis to Argentina in 2026

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Find the cheapest flights from St. Louis to Argentina

Round-trip

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11:15 am - 8:00 am

STL

EZE

18h 45m

1 stop

9:00 pm - 10:10 am

EZE

STL

15h 10m

1 stop

$1,147United Airlines

Tue, Aug 11 - Tue, Aug 18

6:00 am - 6:10 am

STL

EZE

22h 10m

2 stops

7:35 am - 6:27 pm

EZE

STL

36h 52m

3 stops

$1,150LATAM Airlines

Tue, Aug 11 - Tue, Aug 18

6:45 pm - 9:45 am

STL

EZE

13h 00m

1 stop

8:10 pm - 4:41 pm

EZE

STL

22h 31m

1 stop

$1,227Delta

Fri, Sep 18 - Fri, Sep 25

4:59 pm - 9:40 am

STL

EZE

14h 41m

2 stops

1:10 pm - 9:34 am

EZE

STL

22h 24m

2 stops

$1,231Delta

Fri, Sep 18 - Fri, Sep 25

5:23 pm - 9:40 am

STL

EZE

38h 17m

2 stops

7:35 am - 11:46 am

EZE

STL

30h 11m

3 stops

$1,234LATAM Airlines

Tue, Aug 11 - Tue, Aug 18

8:40 am - 3:40 pm

STL

EZE

29h 00m

3 stops

7:10 am - 12:21 pm

EZE

STL

31h 11m

3 stops

$1,329Multiple Airlines

Wed, Jun 10 - Tue, Jun 23

4:59 pm - 2:50 pm

STL

AEP

19h 51m

2 stops

8:05 pm - 2:49 pm

AEP

STL

20h 44m

2 stops

$1,335Delta

Fri, Sep 18 - Fri, Sep 25

6:30 am - 2:35 am

STL

EZE

18h 05m

1 stop

2:49 pm - 11:49 pm

EZE

STL

35h 00m

2 stops

$1,340Multiple Airlines

Wed, Jun 10 - Tue, Jun 23

8:35 am - 8:00 am

STL

EZE

21h 25m

1 stop

9:00 pm - 10:07 am

EZE

STL

15h 07m

1 stop

$1,376Avianca

Wed, Jun 10 - Tue, Jun 23

10:51 am - 7:40 am

STL

AEP

18h 49m

2 stops

6:20 pm - 12:30 pm

AEP

STL

20h 10m

2 stops

$1,377LATAM Airlines

Fri, Jul 3 - Fri, Jul 10

United Airlines flights from St. Louis to Argentina

Our best United Airlines deals on St. Louis to Argentina flight tickets

United Airlines

Aug 11

STL11:15 amLambert-St Louis

18h 45m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Aug 18

EZE9:00 pmBuenos Aires Ministro Pistarini

15h 10m

1 stop

STL10:10 amLambert-St Louis

$1,147

United Airlines

Jul 10

STL7:05 pmLambert-St Louis

34h 55m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

Jul 17

EZE9:00 pmBuenos Aires Ministro Pistarini

50h 26m

2 stops

STL9:26 pmLambert-St Louis

$1,400

United Airlines

Aug 2

STL5:33 pmLambert-St Louis

36h 27m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

Aug 7

EZE9:00 pmBuenos Aires Ministro Pistarini

28h 29m

2 stops

STL11:29 pmLambert-St Louis

$1,416

LATAM Airlines flights from St. Louis to Argentina

Our best LATAM Airlines deals on St. Louis to Argentina flight tickets

LATAM Airlines

Aug 11

STL6:00 amLambert-St Louis

22h 10m

2 stops

EZE6:10 amBuenos Aires Ministro Pistarini

Aug 18

EZE7:35 amBuenos Aires Ministro Pistarini

36h 52m

3 stops

STL6:27 pmLambert-St Louis

$1,150

LATAM Airlines

Aug 11

STL5:23 pmLambert-St Louis

38h 17m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Aug 18

EZE7:35 amBuenos Aires Ministro Pistarini

30h 11m

3 stops

STL11:46 amLambert-St Louis

$1,234

LATAM Airlines

Jul 3

STL3:57 pmLambert-St Louis

15h 48m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jul 10

EZE12:15 pmBuenos Aires Ministro Pistarini

22h 51m

2 stops

STL9:06 amLambert-St Louis

$1,377

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 8/11

11:15 am-8:00 am

1 stop18h 45m

Buenos Aires Ministro Pistarini

Tue 8/18

9:00 pm-10:10 am

1 stop15h 10m

$1,147

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 8/11

6:00 am-6:10 am

2 stops22h 10m

Buenos Aires Ministro Pistarini

Tue 8/18

7:35 am-6:27 pm

3 stops36h 52m

$1,150

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 9/18

6:45 pm-9:45 am

1 stop13h 00m

Buenos Aires Ministro Pistarini

Fri 9/25

8:10 pm-4:41 pm

1 stop22h 31m

$1,227

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 9/18

4:59 pm-9:40 am

2 stops14h 41m

Buenos Aires Ministro Pistarini

Fri 9/25

1:10 pm-9:34 am

2 stops22h 24m

$1,231

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 8/11

5:23 pm-9:40 am

2 stops38h 17m

Buenos Aires Ministro Pistarini

Tue 8/18

7:35 am-11:46 am

3 stops30h 11m

$1,234

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 6/10

8:40 am-3:40 pm

3 stops29h 00m

Buenos Aires Ministro Pistarini

Tue 6/23

7:10 am-12:21 pm

3 stops31h 11m

$1,329

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Fri 9/18

4:59 pm-2:50 pm

2 stops19h 51m

Buenos Aires Jorge Newbery

Fri 9/25

8:05 pm-2:49 pm

2 stops20h 44m

$1,335

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 6/10

6:30 am-2:35 am

1 stop18h 05m

Buenos Aires Ministro Pistarini

Tue 6/23

2:49 pm-11:49 pm

2 stops35h 00m

$1,340

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 6/10

8:35 am-8:00 am

1 stop21h 25m

Buenos Aires Ministro Pistarini

Tue 6/23

9:00 pm-10:07 am

1 stop15h 07m

$1,376

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Fri 7/3

10:51 am-7:40 am

2 stops18h 49m

Buenos Aires Jorge Newbery

Fri 7/10

6:20 pm-12:30 pm

2 stops20h 10m

$1,377

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 to Argentina?

If you are unable to visit Argentina during the month of October, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $884.

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

You could potentially save up to 8% on your flight if you consider stops on a St. Louis to Argentina flight.

Cheap St. Louis to Argentina flight deals and tips

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

Fastest flight time	13h 00m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 13h 00m

There are no direct flights from St. Louis to Argentina. There are no popular flight routes from St. Louis to Argentina.

Search flight deals

Frequently asked questions about flying from St. Louis to Argentina

When did momondo last update prices for flights from Lambert-St Louis Airport to Argentina?
Prices for flights from Lambert-St Louis Airport to Argentina refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Argentina?
There are 2 operators available for flights from Lambert-St Louis Airport to Argentina as of May 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Argentina?
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 Lambert-St Louis Airport to Argentina.
What documentation or ID do you need to fly to Argentina?
The required travel and health documents for your Argentina 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 Argentina. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from St. Louis to Argentina

Compare and see reviews for airlines that fly from St. Louis to Argentina with momondo

Airline	Rating	Free Cancellation	Price
LATAM Airlines	PriceFrom $884	Free Cancellation	Rating 7.4 1,921 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,423 reviews		Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Argentina from St. Louis.

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

Yes. momondo allows you to filter the results for St. Louis to Argentina flights to just show those with flexible booking policies.

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

Once you have performed a search for St. Louis to Argentina 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 St. Louis to Argentina right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Argentina flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.