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.

$894 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

Last minute

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

10:40 pm - 6:07 pm

EZE

STL

21h 27m

2 stops

$894LATAM Airlines

Thu, Jun 4 - Thu, Jun 11

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

8:10 pm - 8:16 am

EZE

STL

14h 06m

1 stop

$909LATAM Airlines

Thu, Jun 4 - Thu, Jun 11

6:00 am - 9:20 am

STL

EZE

25h 20m

2 stops

10:40 pm - 6:07 pm

EZE

STL

21h 27m

2 stops

$973LATAM Airlines

Thu, Jun 25 - Sat, Jul 4

5:24 pm - 9:45 am

STL

EZE

14h 21m

1 stop

8:10 pm - 9:46 am

EZE

STL

15h 36m

1 stop

$989LATAM Airlines

Thu, Jun 25 - Sat, Jul 4

10:49 am - 8:30 am

STL

AEP

19h 41m

2 stops

8:05 pm - 6:07 pm

AEP

STL

24h 02m

2 stops

$1,022LATAM Airlines

Thu, Jun 4 - Thu, Jun 11

9:13 am - 7:40 am

STL

AEP

20h 27m

2 stops

3:45 pm - 9:08 am

AEP

STL

19h 23m

2 stops

$1,029Delta

Fri, Jun 5 - Fri, Jun 12

7:01 pm - 9:45 am

STL

EZE

12h 44m

1 stop

8:10 pm - 9:08 am

EZE

STL

14h 58m

1 stop

$1,029LATAM Airlines

Fri, Jun 5 - Fri, Jun 12

12:59 pm - 9:20 am

STL

EZE

18h 21m

2 stops

10:40 pm - 6:07 pm

EZE

STL

21h 27m

2 stops

$1,033LATAM Airlines

Sat, Jun 6 - Sat, Jun 13

2:15 pm - 1:20 am

STL

EZE

33h 05m

3 stops

7:10 am - 12:06 pm

EZE

STL

30h 56m

3 stops

$1,186Multiple Airlines

Sat, Jun 6 - Sat, Jun 13

2:15 pm - 1:20 am

STL

EZE

33h 05m

3 stops

4:00 am - 12:06 pm

EZE

STL

34h 06m

3 stops

$1,200Multiple Airlines

Fri, Jun 5 - Fri, Jun 12

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LATAM Airlines flights from St. Louis to Argentina

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

LATAM Airlines

Jun 4

STL5:20 pmLambert-St Louis

14h 25m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jun 11

EZE10:40 pmBuenos Aires Ministro Pistarini

21h 27m

2 stops

STL6:07 pmLambert-St Louis

$894

LATAM Airlines

Jun 4

STL7:01 pmLambert-St Louis

12h 44m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Jun 11

EZE8:10 pmBuenos Aires Ministro Pistarini

14h 06m

1 stop

STL8:16 amLambert-St Louis

$909

LATAM Airlines

Jun 25

STL6:00 amLambert-St Louis

25h 20m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Jul 4

EZE10:40 pmBuenos Aires Ministro Pistarini

21h 27m

2 stops

STL6:07 pmLambert-St Louis

$973

American Airlines flights from St. Louis to Argentina

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

American Airlines

May 19

STL12:27 pmLambert-St Louis

16h 48m

2 stops

EZE7:15 amBuenos Aires Ministro Pistarini

May 26

EZE8:35 pmBuenos Aires Ministro Pistarini

17h 24m

2 stops

STL11:59 amLambert-St Louis

$1,285

American Airlines

Jun 6

STL6:24 pmLambert-St Louis

23h 51m

1 stop

EZE8:15 pmBuenos Aires Ministro Pistarini

Jun 13

EZE9:15 amBuenos Aires Ministro Pistarini

15h 43m

1 stop

STL10:58 pmLambert-St Louis

$1,340

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 6/11

10:40 pm-6:07 pm

2 stops21h 27m

$894

Quickest round-trip

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 6/11

8:10 pm-8:16 am

1 stop14h 06m

$909

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/25

6:00 am-9:20 am

2 stops25h 20m

Buenos Aires Ministro Pistarini

Sat 7/4

10:40 pm-6:07 pm

2 stops21h 27m

$973

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 6/25

5:24 pm-9:45 am

1 stop14h 21m

Buenos Aires Ministro Pistarini

Sat 7/4

8:10 pm-9:46 am

1 stop15h 36m

$989

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Thu 6/4

10:49 am-8:30 am

2 stops19h 41m

Buenos Aires Jorge Newbery

Thu 6/11

8:05 pm-6:07 pm

2 stops24h 02m

$1,022

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Fri 6/5

9:13 am-7:40 am

2 stops20h 27m

Buenos Aires Jorge Newbery

Fri 6/12

3:45 pm-9:08 am

2 stops19h 23m

$1,029

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/5

7:01 pm-9:45 am

1 stop12h 44m

Buenos Aires Ministro Pistarini

Fri 6/12

8:10 pm-9:08 am

1 stop14h 58m

$1,029

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sat 6/6

12:59 pm-9:20 am

2 stops18h 21m

Buenos Aires Ministro Pistarini

Sat 6/13

10:40 pm-6:07 pm

2 stops21h 27m

$1,033

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sat 6/6

2:15 pm-1:20 am

3 stops33h 05m

Buenos Aires Ministro Pistarini

Sat 6/13

7:10 am-12:06 pm

3 stops30h 56m

$1,186

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/5

2:15 pm-1:20 am

3 stops33h 05m

Buenos Aires Ministro Pistarini

Fri 6/12

4:00 am-12:06 pm

3 stops34h 06m

$1,200

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 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	12h 33m
Direct flights	None

The fastest flight from St. Louis to Argentina takes 12h 33m

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 1,911 reviews		Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.9 8,456 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.