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

GOL and Copa Airlines are the most popular carriers operating from Lambert-St Louis to Argentina

What airlines fly to Argentina?

Delta, LATAM Airlines and American Airlines are the top three most popular airlines that fly to Argentina from St. Louis according to our data. Delta is the first choice among our users, with 39% 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 September 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.

$482 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

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 7:35 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

22h 35m1 stop Atlanta Hartsfield-Jackson

11:35 pm - 10:48 amEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

14h 13m1 stop Atlanta Hartsfield-Jackson

$1,133LATAM Airlines

Thu, Jan 21 - Tue, Feb 2

5:48 pm - 9:40 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

12h 52m1 stop Atlanta Hartsfield-Jackson

9:30 pm - 4:23 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 53m1 stop Atlanta Hartsfield-Jackson

$1,133LATAM Airlines

Wed, Nov 11 - Wed, Nov 18

9:00 am - 3:00 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

39h 00m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl

11:35 pm - 6:01 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 26m1 stop Atlanta Hartsfield-Jackson

$1,138LATAM Airlines

Thu, Jan 21 - Tue, Feb 2

6:30 am - 2:35 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

18h 05m1 stop Cancun

1:10 pm - 5:40 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

30h 30m2 stops Miami Atlanta Hartsfield-Jackson

$1,143Multiple Airlines

Wed, Oct 14 - Thu, Oct 22

9:00 am - 9:40 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

21h 40m1 stop Atlanta Hartsfield-Jackson

11:35 pm - 2:43 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

17h 08m1 stop Atlanta Hartsfield-Jackson

$1,148Delta

Tue, Feb 23 - Wed, Mar 17

3:40 pm - 9:40 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

15h 00m1 stop Atlanta Hartsfield-Jackson

4:00 am - 11:39 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 39m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson

$1,148Delta

Mon, Feb 22 - Mon, Mar 15

6:15 am - 9:20 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

24h 05m1 stop Houston George Bush Intcntl

10:05 pm - 9:42 amEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

14h 37m1 stop Houston George Bush Intcntl

$1,148United Airlines

Tue, Feb 23 - Thu, Mar 11

1:08 pm - 9:20 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

17h 12m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

10:05 pm - 4:44 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 39m1 stop Houston George Bush Intcntl

$1,148United Airlines

Tue, Feb 23 - Thu, Mar 11

5:03 am - 7:25 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

23h 22m1 stop Miami

10:50 pm - 5:24 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 34m1 stop Miami

$1,828American Airlines

Mon, Dec 21 - Wed, Jan 6

6:19 pm - 10:15 amSTL Lambert-St Louis-EZE Buenos Aires Ministro Pistarini

12h 56m1 stop Miami

10:50 pm - 5:22 pmEZE Buenos Aires Ministro Pistarini-STL Lambert-St Louis

21h 32m1 stop Miami

$1,940American Airlines

Mon, Dec 21 - Wed, Jan 6

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Delta flights from St. Louis to Argentina

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

Delta

Feb 18

STL9:00 amLambert-St Louis

21h 40m

1 stop

EZE9:40 amBuenos Aires Ministro Pistarini

Mar 16

EZE9:30 pmBuenos Aires Ministro Pistarini

15h 18m

1 stop

STL10:48 amLambert-St Louis

$1,148

Delta

Feb 21

STL6:59 pmLambert-St Louis

35h 41m

1 stop

EZE9:40 amBuenos Aires Ministro Pistarini

Mar 15

EZE11:35 pmBuenos Aires Ministro Pistarini

20h 26m

1 stop

STL6:01 pmLambert-St Louis

$1,156

Delta

Oct 13

STL7:20 pmLambert-St Louis

12h 25m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

Oct 21

EZE4:45 pmBuenos Aires Ministro Pistarini

22h 35m

2 stops

STL1:20 pmLambert-St Louis

$1,178

United Airlines flights from St. Louis to Argentina

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

United Airlines

Oct 14

STL5:36 pmLambert-St Louis

36h 24m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

Oct 21

EZE9:00 pmBuenos Aires Ministro Pistarini

19h 10m

1 stop

STL2:10 pmLambert-St Louis

$1,167

United Airlines

Oct 14

STL3:12 pmLambert-St Louis

14h 48m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Oct 21

EZE9:00 pmBuenos Aires Ministro Pistarini

19h 10m

1 stop

STL2:10 pmLambert-St Louis

$1,203

United Airlines

Oct 14

STL3:12 pmLambert-St Louis

14h 48m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

Oct 21

EZE9:00 pmBuenos Aires Ministro Pistarini

15h 10m

1 stop

STL10:10 amLambert-St Louis

$1,226

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/21

6:00 am-7:35 am

1 stop22h 35m

Buenos Aires Ministro Pistarini

Tue 2/2

11:35 pm-10:48 am

1 stop14h 13m

$1,133

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Wed 11/11

5:48 pm-9:40 am

1 stop12h 52m

Buenos Aires Ministro Pistarini

Wed 11/18

9:30 pm-4:23 pm

1 stop21h 53m

$1,133

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/21

9:00 am-3:00 am

2 stops39h 00m

Buenos Aires Ministro Pistarini

Tue 2/2

11:35 pm-6:01 pm

1 stop21h 26m

$1,138

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Wed 10/14

6:30 am-2:35 am

1 stop18h 05m

Buenos Aires Ministro Pistarini

Thu 10/22

1:10 pm-5:40 pm

2 stops30h 30m

$1,143

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Tue 2/23

9:00 am-9:40 am

1 stop21h 40m

Buenos Aires Ministro Pistarini

Wed 3/17

11:35 pm-2:43 pm

1 stop17h 08m

$1,148

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Mon 2/22

3:40 pm-9:40 am

1 stop15h 00m

Buenos Aires Ministro Pistarini

Mon 3/15

4:00 am-11:39 pm

2 stops21h 39m

$1,148

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Tue 2/23

6:15 am-9:20 am

1 stop24h 05m

Buenos Aires Ministro Pistarini

Thu 3/11

10:05 pm-9:42 am

1 stop14h 37m

$1,148

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Tue 2/23

1:08 pm-9:20 am

2 stops17h 12m

Buenos Aires Ministro Pistarini

Thu 3/11

10:05 pm-4:44 pm

1 stop21h 39m

$1,148

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Mon 12/21

5:03 am-7:25 am

1 stop23h 22m

Buenos Aires Ministro Pistarini

Wed 1/6

10:50 pm-5:24 pm

1 stop21h 34m

$1,828

Quickest round-trip

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Mon 12/21

6:19 pm-10:15 am

1 stop12h 56m

Buenos Aires Ministro Pistarini

Wed 1/6

10:50 pm-5:22 pm

1 stop21h 32m

$1,940

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 September, then departing from St. Louis during the month November is also very affordable. Most momondo users find prices during this month for around $1,065.

Can stopping save me money on St. Louis to Argentina flights?

You could potentially save up to 11% 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

Best Price Found	$482
Fastest flight time	16h 06m
Direct flights	None

The best one-way flight to Argentina from St. Louis in the past 72 hours is $482. The best round-trip flight deal from St. Louis to Argentina found on momondo in the last 72 hours is $1,133.

The fastest flight from St. Louis to Argentina takes 16h 06m

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 3 operators available for flights from Lambert-St Louis Airport to Argentina as of September 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 1,987 reviews	Search LATAM Airlines flights
Delta	PriceFrom $1,025	Free Cancellation	Rating 7.8 8,536 reviews	Search Delta flights
American Airlines	PriceFrom $1,147	Free Cancellation	Rating 7.1 12,028 reviews	Search American 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.