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 is 1 operator available for flights from Lambert-St Louis Airport to Argentina as of February 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.

$376 Cheap Flights from St. Louis to Argentina in 2026

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Find the cheapest flights from St. Louis to Argentina

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:03 am - 7:55 am

STL

AEP

22h 52m

2 stops

3:45 pm - 9:05 am

AEP

STL

19h 20m

2 stops

$937LATAM Airlines

Tue, Mar 24 - Tue, Mar 31

5:21 pm - 9:00 am

STL

EZE

13h 39m

1 stop

11:55 am - 9:05 am

EZE

STL

23h 10m

2 stops

$958LATAM Airlines

Tue, Mar 24 - Tue, Mar 31

6:00 am - 9:35 am

STL

EZE

25h 35m

2 stops

11:55 am - 9:05 am

EZE

STL

23h 10m

2 stops

$971LATAM Airlines

Tue, Mar 24 - Tue, Mar 31

6:30 am - 8:00 am

STL

EZE

23h 30m

2 stops

9:00 pm - 9:08 pm

EZE

STL

26h 08m

2 stops

$996United Airlines

Tue, Mar 31 - Thu, May 7

5:15 pm - 9:45 am

STL

EZE

14h 30m

1 stop

8:10 pm - 8:07 am

EZE

STL

13h 57m

1 stop

$1,038LATAM Airlines

Mon, Jun 1 - Mon, Jun 15

5:21 pm - 9:45 am

STL

EZE

14h 24m

1 stop

8:10 pm - 9:44 am

EZE

STL

15h 34m

1 stop

$1,043LATAM Airlines

Tue, Mar 31 - Thu, May 7

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

1:20 pm - 10:45 am

EZE

STL

23h 25m

2 stops

$1,051LATAM Airlines

Mon, Jun 1 - Mon, Jun 15

4:05 pm - 2:30 pm

STL

EZE

20h 25m

2 stops

4:35 pm - 8:05 pm

EZE

STL

29h 30m

3 stops

$1,060Air Canada

Tue, Mar 31 - Thu, May 7

5:30 pm - 9:45 am

STL

EZE

14h 15m

1 stop

8:10 pm - 8:07 am

EZE

STL

13h 57m

1 stop

$1,065LATAM Airlines

Thu, Jul 23 - Mon, Aug 3

4:05 pm - 5:40 am

STL

AEP

35h 35m

2 stops

7:00 am - 3:24 pm

AEP

STL

34h 24m

3 stops

$1,313Multiple Airlines

Wed, Apr 8 - Wed, Apr 15

LATAM Airlines flights from St. Louis to Argentina

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

LATAM Airlines

Mar 24

STL7:03 amLambert-St Louis

22h 52m

2 stops

AEP7:55 amBuenos Aires Jorge Newbery

Mar 31

AEP3:45 pmBuenos Aires Jorge Newbery

19h 20m

2 stops

STL9:05 amLambert-St Louis

$937

LATAM Airlines

Mar 24

STL5:21 pmLambert-St Louis

13h 39m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

Mar 31

EZE11:55 amBuenos Aires Ministro Pistarini

23h 10m

2 stops

STL9:05 amLambert-St Louis

$958

LATAM Airlines

Mar 24

STL6:00 amLambert-St Louis

25h 35m

2 stops

EZE9:35 amBuenos Aires Ministro Pistarini

Mar 31

EZE11:55 amBuenos Aires Ministro Pistarini

23h 10m

2 stops

STL9:05 amLambert-St Louis

$971

United Airlines flights from St. Louis to Argentina

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

United Airlines

Mar 31

STL6:30 amLambert-St Louis

23h 30m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

May 7

EZE9:00 pmBuenos Aires Ministro Pistarini

26h 08m

2 stops

STL9:08 pmLambert-St Louis

$996

United Airlines

Mar 8

STL7:41 amLambert-St Louis

46h 39m

2 stops

EZE8:20 amBuenos Aires Ministro Pistarini

Mar 17

EZE9:05 pmBuenos Aires Ministro Pistarini

14h 16m

1 stop

STL9:21 amLambert-St Louis

$1,120

United Airlines

Mar 8

STL6:00 amLambert-St Louis

22h 20m

1 stop

EZE6:20 amBuenos Aires Ministro Pistarini

Mar 17

EZE9:05 pmBuenos Aires Ministro Pistarini

14h 16m

1 stop

STL9:21 amLambert-St Louis

$1,122

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Tue 3/24

7:03 am-7:55 am

2 stops22h 52m

Buenos Aires Jorge Newbery

Tue 3/31

3:45 pm-9:05 am

2 stops19h 20m

$937

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/24

5:21 pm-9:00 am

1 stop13h 39m

Buenos Aires Ministro Pistarini

Tue 3/31

11:55 am-9:05 am

2 stops23h 10m

$958

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/24

6:00 am-9:35 am

2 stops25h 35m

Buenos Aires Ministro Pistarini

Tue 3/31

11:55 am-9:05 am

2 stops23h 10m

$971

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/31

6:30 am-8:00 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Thu 5/7

9:00 pm-9:08 pm

2 stops26h 08m

$996

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 6/1

5:15 pm-9:45 am

1 stop14h 30m

Buenos Aires Ministro Pistarini

Mon 6/15

8:10 pm-8:07 am

1 stop13h 57m

$1,038

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/31

5:21 pm-9:45 am

1 stop14h 24m

Buenos Aires Ministro Pistarini

Thu 5/7

8:10 pm-9:44 am

1 stop15h 34m

$1,043

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 6/1

7:01 pm-9:45 am

1 stop12h 44m

Buenos Aires Ministro Pistarini

Mon 6/15

1:20 pm-10:45 am

2 stops23h 25m

$1,051

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/31

4:05 pm-2:30 pm

2 stops20h 25m

Buenos Aires Ministro Pistarini

Thu 5/7

4:35 pm-8:05 pm

3 stops29h 30m

$1,060

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/23

5:30 pm-9:45 am

1 stop14h 15m

Buenos Aires Ministro Pistarini

Mon 8/3

8:10 pm-8:07 am

1 stop13h 57m

$1,065

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 4/8

4:05 pm-5:40 am

2 stops35h 35m

Buenos Aires Jorge Newbery

Wed 4/15

7:00 am-3:24 pm

3 stops34h 24m

$1,313

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted 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 September, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $1,160.

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	12h 44m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 12h 44m

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

Search flight deals

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 is 1 operator available for flights from Lambert-St Louis Airport to Argentina as of February 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
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,237 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.