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.

$892 Cheap Flights from St. Louis to Argentina in 2026

1 adult

0 bags

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.

5:20 pm - 9:45 am

STL

EZE

14h 25m

1 stop

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$892LATAM Airlines

Thu, Jun 4 - Thu, Jun 18

1:39 pm - 9:40 am

STL

EZE

18h 01m

2 stops

10:40 pm - 6:07 pm

EZE

STL

21h 27m

2 stops

$894LATAM Airlines

Wed, Jun 10 - Thu, Jun 18

3:02 pm - 8:00 am

STL

EZE

14h 58m

1 stop

9:00 pm - 10:09 am

EZE

STL

15h 09m

1 stop

$909United Airlines

Wed, Aug 19 - Wed, Aug 26

11:51 am - 8:30 am

STL

AEP

18h 39m

2 stops

9:25 am - 10:41 am

AEP

STL

27h 16m

2 stops

$909LATAM Airlines

Wed, Aug 19 - Wed, Aug 26

10:49 am - 7:40 am

STL

AEP

18h 51m

2 stops

2:55 pm - 8:16 am

AEP

STL

19h 21m

2 stops

$911LATAM Airlines

Thu, Jun 4 - Thu, Jun 18

5:20 pm - 11:30 am

STL

EZE

16h 10m

2 stops

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$911LATAM Airlines

Thu, Jun 4 - Thu, Jun 18

10:49 am - 9:20 am

STL

EZE

20h 31m

2 stops

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$913Delta

Thu, Jun 4 - Thu, Jun 18

7:12 pm - 9:45 am

STL

EZE

12h 33m

1 stop

8:10 pm - 9:08 am

EZE

STL

14h 58m

1 stop

$969Multiple Airlines

Mon, Jun 8 - Fri, Jun 19

6:14 am - 8:00 am

STL

EZE

23h 46m

1 stop

9:00 pm - 9:26 pm

EZE

STL

26h 26m

2 stops

$1,116United Airlines

Mon, Jun 1 - Mon, Jun 29

7:01 pm - 4:00 pm

STL

AEP

18h 59m

2 stops

3:45 pm - 9:46 am

AEP

STL

20h 01m

2 stops

$1,118Delta

Mon, Jun 1 - Thu, Jun 25

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United Airlines flights from St. Louis to Argentina

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

United Airlines

Aug 19

STL3:02 pmLambert-St Louis

14h 58m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Aug 26

EZE9:00 pmBuenos Aires Ministro Pistarini

15h 09m

1 stop

STL10:09 amLambert-St Louis

$909

United Airlines

Jun 1

STL6:14 amLambert-St Louis

23h 46m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Jun 29

EZE9:00 pmBuenos Aires Ministro Pistarini

26h 26m

2 stops

STL9:26 pmLambert-St Louis

$1,116

United Airlines

May 27

STL11:10 amLambert-St Louis

18h 50m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Jun 29

EZE9:00 pmBuenos Aires Ministro Pistarini

26h 26m

2 stops

STL9:26 pmLambert-St Louis

$1,201

Delta flights from St. Louis to Argentina

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

Delta

Jun 4

STL10:49 amLambert-St Louis

20h 31m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Jun 18

EZE8:10 pmBuenos Aires Ministro Pistarini

14h 06m

1 stop

STL8:16 amLambert-St Louis

$913

Delta

Jun 1

STL7:01 pmLambert-St Louis

12h 44m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jun 25

EZE10:40 pmBuenos Aires Ministro Pistarini

15h 54m

2 stops

STL12:34 pmLambert-St Louis

$1,118

Delta

Jun 1

STL5:20 pmLambert-St Louis

14h 25m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jun 28

EZE8:10 pmBuenos Aires Ministro Pistarini

28h 08m

1 stop

STL10:18 pmLambert-St Louis

$1,243

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

5:20 pm-9:45 am

1 stop14h 25m

Buenos Aires Ministro Pistarini

Thu 6/18

8:10 pm-8:16 am

1 stop14h 06m

$892

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 6/10

1:39 pm-9:40 am

2 stops18h 01m

Buenos Aires Ministro Pistarini

Thu 6/18

10:40 pm-6:07 pm

2 stops21h 27m

$894

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 8/19

3:02 pm-8:00 am

1 stop14h 58m

Buenos Aires Ministro Pistarini

Wed 8/26

9:00 pm-10:09 am

1 stop15h 09m

$909

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 8/19

11:51 am-8:30 am

2 stops18h 39m

Buenos Aires Jorge Newbery

Wed 8/26

9:25 am-10:41 am

2 stops27h 16m

$909

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Thu 6/4

10:49 am-7:40 am

2 stops18h 51m

Buenos Aires Jorge Newbery

Thu 6/18

2:55 pm-8:16 am

2 stops19h 21m

$911

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/4

5:20 pm-11:30 am

2 stops16h 10m

Buenos Aires Ministro Pistarini

Thu 6/18

8:10 pm-8:16 am

1 stop14h 06m

$911

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 6/18

8:10 pm-8:16 am

1 stop14h 06m

$913

Quickest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 6/8

7:12 pm-9:45 am

1 stop12h 33m

Buenos Aires Ministro Pistarini

Fri 6/19

8:10 pm-9:08 am

1 stop14h 58m

$969

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 6/1

6:14 am-8:00 am

1 stop23h 46m

Buenos Aires Ministro Pistarini

Mon 6/29

9:00 pm-9:26 pm

2 stops26h 26m

$1,116

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 6/1

7:01 pm-4:00 pm

2 stops18h 59m

Buenos Aires Jorge Newbery

Thu 6/25

3:45 pm-9:46 am

2 stops20h 01m

$1,118

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 40m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 12h 40m

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 1,912 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,466 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.