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 June 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.

$983 Cheap Flights from St. Louis to Argentina in 2026

Discover deals from 900+ travel sites with momondo.

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.

11:00 am - 9:45 am

STL

EZE

20h 45m

1 stop

8:10 pm - 9:54 am

EZE

STL

15h 44m

1 stop

$1,132LATAM Airlines

Thu, Aug 13 - Wed, Aug 26

6:00 am - 9:40 am

STL

EZE

25h 40m

2 stops

3:55 am - 11:58 pm

EZE

STL

22h 03m

2 stops

$1,146LATAM Airlines

Mon, Aug 17 - Sun, Aug 23

4:13 pm - 4:00 pm

STL

AEP

20h 47m

2 stops

5:35 pm - 10:48 am

AEP

STL

20h 13m

2 stops

$1,148Delta

Mon, Nov 16 - Mon, Nov 23

12:00 pm - 10:55 am

STL

EZE

19h 55m

1 stop

11:35 pm - 3:58 pm

EZE

STL

19h 23m

1 stop

$1,148Delta

Mon, Nov 16 - Mon, Nov 23

11:00 am - 9:40 am

STL

EZE

20h 40m

2 stops

8:10 pm - 11:46 am

EZE

STL

17h 36m

1 stop

$1,152Delta

Thu, Aug 13 - Wed, Aug 26

5:55 pm - 7:20 am

STL

EZE

34h 25m

1 stop

10:05 pm - 4:39 pm

EZE

STL

21h 34m

1 stop

$1,157United Airlines

Sun, Nov 15 - Wed, Nov 25

5:55 pm - 7:20 am

STL

EZE

34h 25m

1 stop

10:05 pm - 2:30 pm

EZE

STL

19h 25m

2 stops

$1,162United Airlines

Sun, Nov 15 - Wed, Nov 25

9:00 am - 9:40 am

STL

EZE

21h 40m

2 stops

7:20 am - 10:48 am

EZE

STL

30h 28m

2 stops

$1,175LATAM Airlines

Wed, Nov 18 - Tue, Nov 24

8:55 am - 9:00 pm

STL

AEP

34h 05m

2 stops

7:00 am - 2:02 pm

AEP

STL

33h 02m

3 stops

$1,545Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

12:10 pm - 9:30 pm

STL

AEP

31h 20m

3 stops

7:00 am - 2:02 pm

AEP

STL

33h 02m

3 stops

$1,547Multiple Airlines

Thu, Aug 13 - Wed, Aug 26

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American Airlines flights from St. Louis to Argentina

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

American Airlines

Jun 28

STL5:16 amLambert-St Louis

12h 59m

1 stop

EZE8:15 pmBuenos Aires Ministro Pistarini

Jul 5

EZE10:00 pmBuenos Aires Ministro Pistarini

23h 53m

1 stop

STL7:53 pmLambert-St Louis

$1,178

American Airlines

Jun 28

STL1:42 pmLambert-St Louis

17h 08m

2 stops

EZE8:50 amBuenos Aires Ministro Pistarini

Jul 5

EZE8:30 pmBuenos Aires Ministro Pistarini

17h 25m

2 stops

STL11:55 amLambert-St Louis

$1,182

American Airlines

Aug 29

STL10:16 amLambert-St Louis

18h 59m

2 stops

EZE7:15 amBuenos Aires Ministro Pistarini

Sep 6

EZE10:30 pmBuenos Aires Ministro Pistarini

14h 15m

1 stop

STL10:45 amLambert-St Louis

$1,192

Air Canada flights from St. Louis to Argentina

Our best Air Canada deals on St. Louis to Argentina flight tickets

Air Canada

Sep 9

STL8:55 amLambert-St Louis

27h 35m

2 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

Sep 12

EZE4:35 pmBuenos Aires Ministro Pistarini

47h 25m

3 stops

STL2:00 pmLambert-St Louis

$1,535

Air Canada

Aug 17

STL12:10 pmLambert-St Louis

48h 20m

3 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

Aug 24

EZE4:35 pmBuenos Aires Ministro Pistarini

52h 07m

3 stops

STL6:42 pmLambert-St Louis

$1,545

Air Canada

Aug 13

STL12:10 pmLambert-St Louis

48h 20m

3 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

Aug 26

EZE4:35 pmBuenos Aires Ministro Pistarini

28h 07m

2 stops

STL6:42 pmLambert-St Louis

$1,558

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 8/13

11:00 am-9:45 am

1 stop20h 45m

Buenos Aires Ministro Pistarini

Wed 8/26

8:10 pm-9:54 am

1 stop15h 44m

$1,132

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 8/17

6:00 am-9:40 am

2 stops25h 40m

Buenos Aires Ministro Pistarini

Sun 8/23

3:55 am-11:58 pm

2 stops22h 03m

$1,146

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 11/16

4:13 pm-4:00 pm

2 stops20h 47m

Buenos Aires Jorge Newbery

Mon 11/23

5:35 pm-10:48 am

2 stops20h 13m

$1,148

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 11/16

12:00 pm-10:55 am

1 stop19h 55m

Buenos Aires Ministro Pistarini

Mon 11/23

11:35 pm-3:58 pm

1 stop19h 23m

$1,148

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 8/13

11:00 am-9:40 am

2 stops20h 40m

Buenos Aires Ministro Pistarini

Wed 8/26

8:10 pm-11:46 am

1 stop17h 36m

$1,152

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sun 11/15

5:55 pm-7:20 am

1 stop34h 25m

Buenos Aires Ministro Pistarini

Wed 11/25

10:05 pm-4:39 pm

1 stop21h 34m

$1,157

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sun 11/15

5:55 pm-7:20 am

1 stop34h 25m

Buenos Aires Ministro Pistarini

Wed 11/25

10:05 pm-2:30 pm

2 stops19h 25m

$1,162

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 11/18

9:00 am-9:40 am

2 stops21h 40m

Buenos Aires Ministro Pistarini

Tue 11/24

7:20 am-10:48 am

2 stops30h 28m

$1,175

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 8/17

8:55 am-9:00 pm

2 stops34h 05m

Buenos Aires Jorge Newbery

Mon 8/24

7:00 am-2:02 pm

3 stops33h 02m

$1,545

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Thu 8/13

12:10 pm-9:30 pm

3 stops31h 20m

Buenos Aires Jorge Newbery

Wed 8/26

7:00 am-2:02 pm

3 stops33h 02m

$1,547

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 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	16h 55m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 16h 55m

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 June 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 1,942 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.8 8,440 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.