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

American Airlines, United Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to South America

What airlines fly to South America?

American Airlines, Delta and LATAM Airlines are the top three most popular airlines that fly to South America from St. Louis according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to South America. Keep in mind that there are 5 different airlines that fly to South America 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 South America?

Prices for flights from Lambert-St Louis Airport to South America were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to South America?

The number of operators available for flights from Lambert-St Louis Airport to South America is 5 as of April 2026.

How old do you have to be to fly from Lambert-St Louis Airport to South America?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to South America.

What documentation or ID do you need to fly to South America?

The travel and health documents you'll need for your trip to South America may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South America. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$147 Cheap Flights from St. Louis to South America in 2026

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Find the cheapest flights from St. Louis to South America

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:06 pm - 1:00 pm

STL

MDE

39h 54m

2 stops

1:55 pm - 10:29 am

MDE

STL

20h 34m

1 stop

$562Multiple Airlines

Fri, May 22 - Sun, May 31

6:33 pm - 12:43 pm

STL

MDE

18h 10m

2 stops

1:55 pm - 10:29 am

MDE

STL

20h 34m

1 stop

$569Multiple Airlines

Thu, May 28 - Sun, May 31

5:32 pm - 4:54 am

STL

BOG

11h 22m

2 stops

12:14 am - 10:09 am

BOG

STL

9h 55m

1 stop

$616United Airlines

Tue, Aug 18 - Wed, Sep 2

7:30 am - 10:00 pm

STL

BOG

14h 30m

2 stops

12:14 am - 10:09 am

BOG

STL

9h 55m

1 stop

$621United Airlines

Tue, Aug 18 - Wed, Sep 2

9:41 am - 11:50 pm

STL

MDE

14h 09m

2 stops

6:00 am - 8:26 pm

MDE

STL

14h 26m

2 stops

$625American Airlines

Wed, Jun 10 - Wed, Jun 17

3:42 pm - 5:00 am

STL

LIM

13h 18m

1 stop

12:05 pm - 11:39 pm

LIM

STL

11h 34m

1 stop

$709LATAM Airlines

Tue, Oct 6 - Tue, Oct 13

3:42 pm - 5:00 am

STL

LIM

13h 18m

2 stops

12:15 am - 6:01 pm

LIM

STL

17h 46m

2 stops

$729LATAM Airlines

Tue, Oct 13 - Wed, Oct 21

6:00 am - 9:35 pm

STL

LIM

15h 35m

2 stops

8:55 am - 11:39 pm

LIM

STL

14h 44m

2 stops

$739Delta

Wed, Oct 14 - Thu, Oct 22

6:00 am - 8:20 pm

STL

LIM

14h 20m

2 stops

8:55 am - 11:56 pm

LIM

STL

15h 01m

2 stops

$765Delta

Thu, May 28 - Thu, Jun 11

7:00 am - 10:37 pm

STL

GYE

15h 37m

2 stops

2:31 pm - 8:33 am

GYE

STL

18h 02m

2 stops

$770American Airlines

Sat, May 30 - Sat, Jun 6

Avianca flights from St. Louis to South America

Our best Avianca deals on St. Louis to South America flight tickets

Avianca

May 9

STL8:45 amLambert-St Louis

11h 20m

1 stop

BOG8:05 pmBogotá El Dorado

May 23

BOG1:40 pmBogotá El Dorado

20h 47m

2 stops

STL10:27 amLambert-St Louis

$659

Avianca

May 9

STL8:45 amLambert-St Louis

31h 15m

2 stops

BOG4:00 pmBogotá El Dorado

May 23

BOG1:40 pmBogotá El Dorado

20h 47m

2 stops

STL10:27 amLambert-St Louis

$682

Avianca

May 4

STL8:45 amLambert-St Louis

25h 35m

2 stops

MDE10:20 amMedellín Jose Maria Cordova Intl

May 11

MDE9:30 amMedellín Jose Maria Cordova Intl

23h 09m

2 stops

STL8:39 amLambert-St Louis

$777

GOL flights from St. Louis to South America

Our best GOL deals on St. Louis to South America flight tickets

GOL

May 20

STL5:24 amLambert-St Louis

7h 41m

1 stop

BOG1:05 pmBogotá El Dorado

Jun 2

BOG6:30 amBogotá El Dorado

16h 28m

1 stop

STL10:58 pmLambert-St Louis

$856

GOL

May 20

STL5:24 amLambert-St Louis

7h 41m

1 stop

BOG1:05 pmBogotá El Dorado

Jun 2

BOG2:10 pmBogotá El Dorado

18h 41m

2 stops

STL8:51 amLambert-St Louis

$860

GOL

Apr 20

STL4:30 pmLambert-St Louis

20h 35m

2 stops

BOG1:05 pmBogotá El Dorado

Apr 25

BOG6:30 amBogotá El Dorado

16h 23m

1 stop

STL10:53 pmLambert-St Louis

$1,032

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMedellín

STL - MDE

STLMDE

Lambert-St Louis

Fri 5/22

9:06 pm-1:00 pm

2 stops39h 54m

Medellín Jose Maria Cordova Intl

Sun 5/31

1:55 pm-10:29 am

1 stop20h 34m

$562

St. LouisMedellín

STL - MDE

STLMDE

Lambert-St Louis

Thu 5/28

6:33 pm-12:43 pm

2 stops18h 10m

Medellín Jose Maria Cordova Intl

Sun 5/31

1:55 pm-10:29 am

1 stop20h 34m

$569

Quickest round-trip

St. LouisBogotá

STL - BOG

STLBOG

Lambert-St Louis

Tue 8/18

5:32 pm-4:54 am

2 stops11h 22m

Bogotá El Dorado

Wed 9/2

12:14 am-10:09 am

1 stop9h 55m

$616

St. LouisBogotá

STL - BOG

STLBOG

Lambert-St Louis

Tue 8/18

7:30 am-10:00 pm

2 stops14h 30m

Bogotá El Dorado

Wed 9/2

12:14 am-10:09 am

1 stop9h 55m

$621

St. LouisMedellín

STL - MDE

STLMDE

Lambert-St Louis

Wed 6/10

9:41 am-11:50 pm

2 stops14h 09m

Medellín Jose Maria Cordova Intl

Wed 6/17

6:00 am-8:26 pm

2 stops14h 26m

$625

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 10/6

3:42 pm-5:00 am

1 stop13h 18m

Lima J Chavez Intl

Tue 10/13

12:05 pm-11:39 pm

1 stop11h 34m

$709

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 10/13

3:42 pm-5:00 am

2 stops13h 18m

Lima J Chavez Intl

Wed 10/21

12:15 am-6:01 pm

2 stops17h 46m

$729

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 10/14

6:00 am-9:35 pm

2 stops15h 35m

Lima J Chavez Intl

Thu 10/22

8:55 am-11:39 pm

2 stops14h 44m

$739

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Thu 5/28

6:00 am-8:20 pm

2 stops14h 20m

Lima J Chavez Intl

Thu 6/11

8:55 am-11:56 pm

2 stops15h 01m

$765

St. LouisGuayaquil

STL - GYE

STLGYE

Lambert-St Louis

Sat 5/30

7:00 am-10:37 pm

2 stops15h 37m

Guayaquil Jose Joaquin de Olmedo

Sat 6/6

2:31 pm-8:33 am

2 stops18h 02m

$770

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 South America

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 South America?

In general, February is the cheapest month to fly from St. Louis to South America. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $664. If you aren’t able to travel during the month of February, then book flights to South America from St. Louis during January instead. Flights to South America in January, while not as cheap as those in February, still average around $709.

How far in advance should I book a flight to South America?

You are more likely to see cheaper flights to South America from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to South America for around $813 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South America from St. Louis for as low as $671 on momondo.

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

You could potentially save up to 26% on your flight if you consider stops on a St. Louis to South America flight.

Cheap St. Louis to South America flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to South America

Fastest flight time	6h 58m
Direct flights	None

The fastest flight from St. Louis to South America takes 6h 58m

There are no direct flights from St. Louis to South America. There are no popular flight routes from St. Louis to South America.

Search flight deals

Frequently asked questions about flying from St. Louis to South America

When did momondo last update prices for flights from Lambert-St Louis Airport to South America?
Prices for flights from Lambert-St Louis Airport to South America were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to South America?
The number of operators available for flights from Lambert-St Louis Airport to South America is 5 as of April 2026.
How old do you have to be to fly from Lambert-St Louis Airport to South America?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to South America.
What documentation or ID do you need to fly to South America?
The travel and health documents you'll need for your trip to South America may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South America. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to South America

Compare and see reviews for airlines that fly from St. Louis to South America with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $474	Free Cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights
LATAM Airlines	PriceFrom $474	Free Cancellation	Rating 7.4 1,909 reviews	Search LATAM Airlines flights
American Airlines	PriceFrom $474	Free Cancellation	Rating 7.1 11,622 reviews	Search American Airlines flights
Delta	PriceFrom $488	Free Cancellation	Rating 7.9 8,421 reviews	Search Delta flights
Air Canada	PriceFrom $758	Free Cancellation	Rating 7.1 10,940 reviews	Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to South America?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to South America. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to South America with flexible booking policies on momondo?

momondo does allow users to show only those flights to South America from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to South America?

Once all potential St. Louis to South America flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to South America right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to South America from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.