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 March 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.

$433 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:18 pm - 9:20 am

STL

EZE

17h 02m

2 stops

8:10 pm - 3:58 pm

EZE

STL

21h 48m

1 stop

$1,034LATAM Airlines

Tue, Jun 23 - Tue, Jun 30

1:30 pm - 9:40 am

STL

AEP

18h 10m

2 stops

3:45 pm - 12:54 pm

AEP

STL

23h 09m

2 stops

$1,047LATAM Airlines

Tue, Jun 23 - Tue, Jun 30

2:18 pm - 9:20 am

STL

EZE

17h 02m

2 stops

12:15 pm - 10:45 am

EZE

STL

24h 30m

2 stops

$1,062LATAM Airlines

Tue, Jun 23 - Tue, Jun 30

1:30 pm - 9:45 am

STL

EZE

18h 15m

1 stop

8:10 pm - 8:07 am

EZE

STL

13h 57m

1 stop

$1,065LATAM Airlines

Tue, Jun 23 - Tue, Jun 30

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

8:10 pm - 9:44 am

EZE

STL

15h 34m

1 stop

$1,119LATAM Airlines

Mon, May 18 - Thu, May 21

10:00 am - 8:00 am

STL

EZE

20h 00m

2 stops

9:00 pm - 9:25 am

EZE

STL

14h 25m

1 stop

$1,122United Airlines

Mon, Apr 13 - Mon, Apr 20

11:15 am - 8:00 am

STL

EZE

18h 45m

2 stops

9:00 pm - 12:22 pm

EZE

STL

17h 22m

2 stops

$1,126United Airlines

Tue, Apr 14 - Tue, Apr 21

4:05 pm - 2:30 pm

STL

EZE

20h 25m

2 stops

4:35 pm - 8:25 pm

EZE

STL

29h 50m

2 stops

$1,142Air Canada

Tue, Mar 31 - Thu, May 7

6:30 am - 5:20 pm

STL

AEP

32h 50m

3 stops

7:30 am - 3:25 pm

AEP

STL

33h 55m

2 stops

$2,379Multiple Airlines

Mon, Mar 30 - Mon, Apr 6

11:15 am - 5:20 pm

STL

AEP

28h 05m

3 stops

7:00 am - 3:25 pm

AEP

STL

34h 25m

3 stops

$2,617Multiple Airlines

Mon, Mar 30 - Mon, Apr 6

LATAM Airlines flights from St. Louis to Argentina

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

LATAM Airlines

Jun 23

STL2:18 pmLambert-St Louis

17h 02m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Jun 30

EZE8:10 pmBuenos Aires Ministro Pistarini

21h 48m

1 stop

STL3:58 pmLambert-St Louis

$1,034

LATAM Airlines

Jun 23

STL1:30 pmLambert-St Louis

18h 10m

2 stops

AEP9:40 amBuenos Aires Jorge Newbery

Jun 30

AEP3:45 pmBuenos Aires Jorge Newbery

23h 09m

2 stops

STL12:54 pmLambert-St Louis

$1,047

LATAM Airlines

Jun 23

STL2:18 pmLambert-St Louis

17h 02m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Jun 30

EZE12:15 pmBuenos Aires Ministro Pistarini

24h 30m

2 stops

STL10:45 amLambert-St Louis

$1,062

United Airlines flights from St. Louis to Argentina

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

United Airlines

Apr 13

STL10:00 amLambert-St Louis

20h 00m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

Apr 20

EZE9:00 pmBuenos Aires Ministro Pistarini

14h 25m

1 stop

STL9:25 amLambert-St Louis

$1,122

United Airlines

Apr 14

STL11:15 amLambert-St Louis

18h 45m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

Apr 21

EZE9:00 pmBuenos Aires Ministro Pistarini

17h 22m

2 stops

STL12:22 pmLambert-St Louis

$1,126

United Airlines

Mar 31

STL10:10 amLambert-St Louis

19h 50m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

May 7

EZE9:00 pmBuenos Aires Ministro Pistarini

27h 30m

1 stop

STL10:30 pmLambert-St Louis

$1,131

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 6/23

2:18 pm-9:20 am

2 stops17h 02m

Buenos Aires Ministro Pistarini

Tue 6/30

8:10 pm-3:58 pm

1 stop21h 48m

$1,034

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Tue 6/23

1:30 pm-9:40 am

2 stops18h 10m

Buenos Aires Jorge Newbery

Tue 6/30

3:45 pm-12:54 pm

2 stops23h 09m

$1,047

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 6/23

2:18 pm-9:20 am

2 stops17h 02m

Buenos Aires Ministro Pistarini

Tue 6/30

12:15 pm-10:45 am

2 stops24h 30m

$1,062

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 6/23

1:30 pm-9:45 am

1 stop18h 15m

Buenos Aires Ministro Pistarini

Tue 6/30

8:10 pm-8:07 am

1 stop13h 57m

$1,065

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 5/18

7:01 pm-9:45 am

1 stop12h 44m

Buenos Aires Ministro Pistarini

Thu 5/21

8:10 pm-9:44 am

1 stop15h 34m

$1,119

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 4/13

10:00 am-8:00 am

2 stops20h 00m

Buenos Aires Ministro Pistarini

Mon 4/20

9:00 pm-9:25 am

1 stop14h 25m

$1,122

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 4/14

11:15 am-8:00 am

2 stops18h 45m

Buenos Aires Ministro Pistarini

Tue 4/21

9:00 pm-12:22 pm

2 stops17h 22m

$1,126

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-8:25 pm

2 stops29h 50m

$1,142

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 3/30

6:30 am-5:20 pm

3 stops32h 50m

Buenos Aires Jorge Newbery

Mon 4/6

7:30 am-3:25 pm

2 stops33h 55m

$2,379

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 3/30

11:15 am-5:20 pm

3 stops28h 05m

Buenos Aires Jorge Newbery

Mon 4/6

7:00 am-3:25 pm

3 stops34h 25m

$2,617

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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	15h 04m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 15h 04m

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 March 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 8,245 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.