What airlines fly to Argentina?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Argentina from St. Louis according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Argentina. Keep in mind that there are 3 different airlines that fly to Argentina on a routine basis, so you have a few additional options to choose from.

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 3 operators available for flights from Lambert-St Louis Airport to Argentina as of April 2025.

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.

$926 Cheap Flights from St. Louis to Argentina in 2025

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Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Argentina that have been recently found on momondo from popular airlines, departing in the coming months.

9:17 am - 5:45 amSTL-EZE

18h 28m2 stops

4:45 pm - 10:02 amEZE-STL

19h 17m2 stops

$926

Find Deal

Wed, Sep 3 - Thu, Sep 4

9:00 am - 9:45 amSTL-EZE

22h 45m1 stop

6:15 am - 11:39 pmEZE-STL

19h 24m2 stops

$1,025Delta

Find Deal

Mon, Aug 18 - Mon, Aug 25

11:25 am - 8:00 amSTL-EZE

18h 35m2 stops

9:00 pm - 2:33 pmEZE-STL

19h 33m2 stops

$1,030United Airlines

Find Deal

Tue, Aug 12 - Tue, Aug 26

9:09 am - 8:00 amSTL-EZE

20h 51m2 stops

9:00 pm - 10:01 amEZE-STL

15h 01m1 stop

$1,070United Airlines

Find Deal

Sat, Aug 16 - Wed, Aug 27

1:30 pm - 2:30 pmSTL-EZE

47h 00m3 stops

4:35 pm - 7:40 pmEZE-STL

29h 05m2 stops

$1,084Air Canada

Find Deal

Sat, Aug 16 - Thu, Aug 21

3:30 pm - 5:00 pmSTL-AEP

23h 30m2 stops

8:10 pm - 8:10 amAEP-STL

38h 00m2 stops

$1,135LATAM Airlines

Find Deal

Thu, Sep 4 - Fri, Sep 12

3:30 pm - 1:25 amSTL-EZE

31h 55m2 stops

7:35 am - 10:38 amEZE-STL

29h 03m2 stops

$1,143LATAM Airlines

Find Deal

Fri, Aug 15 - Tue, Aug 26

1:30 pm - 2:30 pmSTL-EZE

23h 00m2 stops

4:35 pm - 8:00 pmEZE-STL

29h 25m3 stops

$1,202Air Canada

Find Deal

Fri, Aug 15 - Sat, Aug 23

1:37 pm - 10:15 amSTL-EZE

18h 38m2 stops

8:30 pm - 11:59 pmEZE-STL

29h 29m1 stop

$1,262American Airlines

Find Deal

Fri, Aug 15 - Sat, Aug 23

5:18 am - 7:35 amSTL-EZE

24h 17m1 stop

8:30 pm - 11:59 pmEZE-STL

29h 29m1 stop

$1,298American Airlines

Find Deal

Fri, Aug 15 - Sat, Aug 23

LATAM Airlines flights from St. Louis to Argentina

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

LATAM Airlines

Sep 4

STL3:30 pmLambert-St Louis

23h 30m

2 stops

AEP5:00 pmBuenos Aires Jorge Newbery

Sep 12

AEP8:10 pmBuenos Aires Jorge Newbery

38h 00m

2 stops

STL8:10 amLambert-St Louis

$1,135

Find similar

LATAM Airlines

Aug 15

STL3:30 pmLambert-St Louis

31h 55m

2 stops

EZE1:25 amBuenos Aires Ministro Pistarini

Aug 26

EZE7:35 amBuenos Aires Ministro Pistarini

29h 03m

2 stops

STL10:38 amLambert-St Louis

$1,143

Find similar

LATAM Airlines

Sep 4

STL11:51 amLambert-St Louis

16h 04m

2 stops

EZE5:55 amBuenos Aires Ministro Pistarini

Sep 12

EZE7:40 amBuenos Aires Ministro Pistarini

17h 59m

2 stops

STL11:39 pmLambert-St Louis

$1,163

Find similar

Delta flights from St. Louis to Argentina

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

Delta

Aug 18

STL9:00 amLambert-St Louis

22h 45m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Aug 25

EZE6:15 amBuenos Aires Ministro Pistarini

19h 24m

2 stops

STL11:39 pmLambert-St Louis

$1,025

Find similar

Delta

Aug 15

STL3:30 pmLambert-St Louis

16h 15m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Aug 26

EZE8:10 pmBuenos Aires Ministro Pistarini

13h 56m

1 stop

STL8:06 amLambert-St Louis

$1,065

Find similar

Delta

Aug 18

STL3:30 pmLambert-St Louis

16h 15m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Aug 21

EZE8:10 pmBuenos Aires Ministro Pistarini

13h 56m

1 stop

STL8:06 amLambert-St Louis

$1,081

Find similar

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 August, then departing from St. Louis during the month September is also very affordable. Most momondo users find prices during this month for around $1,123.

What is the cheapest day to depart on your flight to Argentina?

The cheapest day to depart from St. Louis to Argentina is on a Tuesday. Travelers who choose to depart for Argentina on a Tuesday will often find tickets for as low as $1,163. The most expensive day to fly to Argentina is Friday, with ticket prices averaging around $1,386.

What is the cheapest time of day to depart on your flight to Argentina?

The cheapest time of day to fly to Argentina is in the evening when flights can be purchased for as low as $1,153. Flights in the morning are often more expensive with an average ticket price of $1,368.

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

Best Price Found	$926
Fastest flight time	12h 40m
Direct flights	None
Airports in Argentina	2 airports

The best flight deal from St. Louis to Argentina found on momondo in the last 72 hours is $926

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

There are no direct flights from St. Louis to Argentina. Popular non-direct routes for this connection are Lambert-St Louis Airport - Buenos Aires Ministro Pistarini Airport and Lambert-St Louis Airport - Buenos Aires Jorge Newbery Airport.

There are 2 airports near Argentina: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

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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 3 operators available for flights from Lambert-St Louis Airport to Argentina as of April 2025.
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
Delta	PriceFrom $1,023	Free Cancellation	Rating 8.0 7,934 reviews	Search Delta flights
American Airlines	PriceFrom $1,025	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,053	Free Cancellation	Rating 7.4 8,696 reviews	Search United Airlines 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.