What is the cheapest airline that flies from Lambert-St Louis to Argentina?

Air Canada, LATAM Airlines, and Delta are the most popular carriers operating from Lambert-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 April 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.

$334 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.

1:27 pm - 9:45 am

STL

EZE

18h 18m

1 stop

8:10 pm - 6:07 pm

EZE

STL

23h 57m

1 stop

$1,084LATAM Airlines

Thu, Jun 4 - Tue, Jun 30

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$1,097Delta

Mon, Jun 1 - Mon, Jun 15

5:20 pm - 11:30 am

STL

EZE

16h 10m

2 stops

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$1,098Multiple Airlines

Mon, Jun 1 - Mon, Jun 15

1:05 pm - 2:30 pm

STL

EZE

47h 25m

3 stops

4:35 pm - 8:25 pm

EZE

STL

53h 50m

3 stops

$1,115Air Canada

Thu, May 7 - Thu, May 14

9:13 am - 9:45 am

STL

EZE

22h 32m

1 stop

8:10 pm - 11:56 pm

EZE

STL

29h 46m

1 stop

$1,127Delta

Thu, Jun 4 - Wed, Jul 1

10:49 am - 9:20 am

STL

EZE

20h 31m

2 stops

8:10 pm - 11:56 pm

EZE

STL

29h 46m

1 stop

$1,131Delta

Thu, Jun 4 - Wed, Jul 1

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

7:35 am - 11:56 pm

EZE

STL

18h 21m

2 stops

$1,138LATAM Airlines

Thu, Jun 4 - Thu, Jul 2

11:51 am - 7:40 am

STL

AEP

17h 49m

2 stops

3:45 pm - 8:12 am

AEP

STL

18h 27m

2 stops

$1,139LATAM Airlines

Wed, Oct 7 - Wed, Oct 21

11:51 am - 6:10 am

STL

EZE

16h 19m

2 stops

3:55 am - 11:39 pm

EZE

STL

21h 44m

2 stops

$1,139LATAM Airlines

Wed, Oct 7 - Tue, Oct 20

10:49 am - 9:20 am

STL

EZE

20h 31m

2 stops

7:35 am - 11:56 pm

EZE

STL

18h 21m

2 stops

$1,142LATAM Airlines

Thu, Jun 4 - Thu, Jul 2

LATAM Airlines flights from St. Louis to Argentina

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

LATAM Airlines

Jun 4

STL1:27 pmLambert-St Louis

18h 18m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jun 30

EZE8:10 pmBuenos Aires Ministro Pistarini

23h 57m

1 stop

STL6:07 pmLambert-St Louis

$1,084

LATAM Airlines

Jun 4

STL7:01 pmLambert-St Louis

12h 44m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jul 2

EZE7:35 amBuenos Aires Ministro Pistarini

18h 21m

2 stops

STL11:56 pmLambert-St Louis

$1,138

LATAM Airlines

Oct 7

STL11:51 amLambert-St Louis

16h 19m

2 stops

EZE6:10 amBuenos Aires Ministro Pistarini

Oct 20

EZE3:55 amBuenos Aires Ministro Pistarini

21h 44m

2 stops

STL11:39 pmLambert-St Louis

$1,139

Air Canada flights from St. Louis to Argentina

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

Air Canada

May 7

STL1:05 pmLambert-St Louis

47h 25m

3 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

May 14

EZE4:35 pmBuenos Aires Ministro Pistarini

53h 50m

3 stops

STL8:25 pmLambert-St Louis

$1,115

Air Canada

Oct 7

STL12:10 pmLambert-St Louis

24h 20m

2 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

Oct 21

EZE4:35 pmBuenos Aires Ministro Pistarini

28h 06m

3 stops

STL6:41 pmLambert-St Louis

$1,152

Air Canada

May 25

STL1:05 pmLambert-St Louis

47h 25m

3 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

Jun 1

EZE4:35 pmBuenos Aires Ministro Pistarini

53h 50m

3 stops

STL8:25 pmLambert-St Louis

$1,165

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

1:27 pm-9:45 am

1 stop18h 18m

Buenos Aires Ministro Pistarini

Tue 6/30

8:10 pm-6:07 pm

1 stop23h 57m

$1,084

Quickest round-trip

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

8:10 pm-8:16 am

1 stop14h 06m

$1,097

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 6/1

5:20 pm-11:30 am

2 stops16h 10m

Buenos Aires Ministro Pistarini

Mon 6/15

8:10 pm-8:16 am

1 stop14h 06m

$1,098

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 5/7

1:05 pm-2:30 pm

3 stops47h 25m

Buenos Aires Ministro Pistarini

Thu 5/14

4:35 pm-8:25 pm

3 stops53h 50m

$1,115

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

9:13 am-9:45 am

1 stop22h 32m

Buenos Aires Ministro Pistarini

Wed 7/1

8:10 pm-11:56 pm

1 stop29h 46m

$1,127

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

10:49 am-9:20 am

2 stops20h 31m

Buenos Aires Ministro Pistarini

Wed 7/1

8:10 pm-11:56 pm

1 stop29h 46m

$1,131

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

7:01 pm-9:45 am

1 stop12h 44m

Buenos Aires Ministro Pistarini

Thu 7/2

7:35 am-11:56 pm

2 stops18h 21m

$1,138

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 10/7

11:51 am-7:40 am

2 stops17h 49m

Buenos Aires Jorge Newbery

Wed 10/21

3:45 pm-8:12 am

2 stops18h 27m

$1,139

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 10/7

11:51 am-6:10 am

2 stops16h 19m

Buenos Aires Ministro Pistarini

Tue 10/20

3:55 am-11:39 pm

2 stops21h 44m

$1,139

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

10:49 am-9:20 am

2 stops20h 31m

Buenos Aires Ministro Pistarini

Thu 7/2

7:35 am-11:56 pm

2 stops18h 21m

$1,142

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

Prices

Airlines

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 November is also very affordable. Most momondo users find prices during this month for around $1,165.

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 16m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 13h 16m

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 April 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 1,910 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,408 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.