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.

$1,148 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:05 pm - 4:00 pm

STL

AEP

18h 55m

2 stops

2:55 pm - 10:48 am

AEP

STL

22h 53m

2 stops

$1,148LATAM Airlines

Wed, Oct 28 - Wed, Nov 11

11:51 am - 6:20 am

STL

EZE

16h 29m

2 stops

3:35 pm - 8:12 am

EZE

STL

19h 37m

2 stops

$1,148Delta

Wed, Oct 28 - Wed, Nov 11

6:14 am - 8:00 am

STL

EZE

23h 46m

1 stop

9:00 pm - 10:07 am

EZE

STL

15h 07m

1 stop

$1,170Lufthansa

Thu, Jul 16 - Thu, Jul 30

10:51 am - 9:40 am

STL

EZE

20h 49m

2 stops

8:10 pm - 10:15 pm

EZE

STL

28h 05m

1 stop

$1,171Delta

Thu, Jul 16 - Thu, Jul 30

8:35 am - 8:00 am

STL

EZE

21h 25m

1 stop

9:00 pm - 10:07 am

EZE

STL

15h 07m

1 stop

$1,177Multiple Airlines

Thu, Jul 9 - Thu, Jul 16

6:58 pm - 9:45 am

STL

EZE

12h 47m

1 stop

8:10 pm - 8:19 am

EZE

STL

14h 09m

1 stop

$1,178LATAM Airlines

Thu, Jul 16 - Thu, Jul 30

6:00 am - 8:00 am

STL

EZE

24h 00m

2 stops

9:00 pm - 10:07 am

EZE

STL

15h 07m

1 stop

$1,181Avianca

Thu, Jul 9 - Thu, Jul 16

9:25 am - 7:00 am

STL

EZE

19h 35m

2 stops

9:15 am - 10:54 pm

EZE

STL

15h 39m

1 stop

$1,182American Airlines

Thu, Jul 16 - Thu, Jul 30

11:00 am - 8:50 am

STL

EZE

19h 50m

1 stop

10:00 pm - 9:48 pm

EZE

STL

25h 48m

1 stop

$1,186American Airlines

Tue, Jul 21 - Sun, Jul 26

11:15 am - 8:50 am

STL

EZE

19h 35m

2 stops

10:00 pm - 9:48 pm

EZE

STL

25h 48m

1 stop

$1,191American Airlines

Tue, Jul 21 - Sun, Jul 26

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Delta flights from St. Louis to Argentina

Our best Delta deals on St. Louis to Argentina flight tickets

Delta

Oct 28

STL11:51 amLambert-St Louis

16h 29m

2 stops

EZE6:20 amBuenos Aires Ministro Pistarini

Nov 11

EZE3:35 pmBuenos Aires Ministro Pistarini

19h 37m

2 stops

STL8:12 amLambert-St Louis

$1,148

Delta

Jul 16

STL10:51 amLambert-St Louis

20h 49m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Jul 30

EZE8:10 pmBuenos Aires Ministro Pistarini

28h 05m

1 stop

STL10:15 pmLambert-St Louis

$1,171

American Airlines flights from St. Louis to Argentina

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

American Airlines

Jul 16

STL9:25 amLambert-St Louis

19h 35m

2 stops

EZE7:00 amBuenos Aires Ministro Pistarini

Jul 30

EZE9:15 amBuenos Aires Ministro Pistarini

15h 39m

1 stop

STL10:54 pmLambert-St Louis

$1,182

American Airlines

Jul 21

STL11:00 amLambert-St Louis

19h 50m

1 stop

EZE8:50 amBuenos Aires Ministro Pistarini

Jul 26

EZE10:00 pmBuenos Aires Ministro Pistarini

25h 48m

1 stop

STL9:48 pmLambert-St Louis

$1,186

American Airlines

Jul 21

STL11:15 amLambert-St Louis

19h 35m

2 stops

EZE8:50 amBuenos Aires Ministro Pistarini

Jul 26

EZE10:00 pmBuenos Aires Ministro Pistarini

25h 48m

1 stop

STL9:48 pmLambert-St Louis

$1,191

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 10/28

7:05 pm-4:00 pm

2 stops18h 55m

Buenos Aires Jorge Newbery

Wed 11/11

2:55 pm-10:48 am

2 stops22h 53m

$1,148

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 10/28

11:51 am-6:20 am

2 stops16h 29m

Buenos Aires Ministro Pistarini

Wed 11/11

3:35 pm-8:12 am

2 stops19h 37m

$1,148

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/16

6:14 am-8:00 am

1 stop23h 46m

Buenos Aires Ministro Pistarini

Thu 7/30

9:00 pm-10:07 am

1 stop15h 07m

$1,170

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/16

10:51 am-9:40 am

2 stops20h 49m

Buenos Aires Ministro Pistarini

Thu 7/30

8:10 pm-10:15 pm

1 stop28h 05m

$1,171

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/9

8:35 am-8:00 am

1 stop21h 25m

Buenos Aires Ministro Pistarini

Thu 7/16

9:00 pm-10:07 am

1 stop15h 07m

$1,177

Quickest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/16

6:58 pm-9:45 am

1 stop12h 47m

Buenos Aires Ministro Pistarini

Thu 7/30

8:10 pm-8:19 am

1 stop14h 09m

$1,178

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/9

6:00 am-8:00 am

2 stops24h 00m

Buenos Aires Ministro Pistarini

Thu 7/16

9:00 pm-10:07 am

1 stop15h 07m

$1,181

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 7/16

9:25 am-7:00 am

2 stops19h 35m

Buenos Aires Ministro Pistarini

Thu 7/30

9:15 am-10:54 pm

1 stop15h 39m

$1,182

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 7/21

11:00 am-8:50 am

1 stop19h 50m

Buenos Aires Ministro Pistarini

Sun 7/26

10:00 pm-9:48 pm

1 stop25h 48m

$1,186

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 7/21

11:15 am-8:50 am

2 stops19h 35m

Buenos Aires Ministro Pistarini

Sun 7/26

10:00 pm-9:48 pm

1 stop25h 48m

$1,191

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	12h 47m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 12h 47m

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 1,932 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,403 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.