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

United Airlines and LATAM Airlines are the most popular carriers operating from Lambert-St Louis to Chile

What airlines fly to Chile?

LATAM Airlines, Delta and American Airlines are the top three most popular airlines that fly to Chile from St. Louis according to our data. LATAM Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Chile. Keep in mind that there are 4 different airlines that fly to Chile 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 Chile?

Prices for flights from Lambert-St Louis Airport to Chile are refreshed on a daily basis.

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

As of August 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Chile.

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

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 Chile.

What documentation or ID do you need to fly to Chile?

The travel and health documents required for your trip to Chile can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chile. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$549 Cheap Flights from St. Louis to Chile in 2025

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Find the cheapest flights from St. Louis to Chile

Round-trip

One-way

Last minute

Cheap round-trip flights

3:15 pm - 7:00 amSTL-SCL

12h 45m1 stop

9:30 pm - 8:09 amSCL-STL

13h 39m1 stop

$784Delta

Find Deal

Thu, Nov 27 - Mon, Dec 8

1:30 pm - 7:00 amSTL-SCL

14h 30m2 stops

6:30 pm - 10:46 amSCL-STL

19h 16m2 stops

$788LATAM Airlines

Find Deal

Thu, Dec 11 - Mon, Dec 15

10:00 am - 6:10 amSTL-SCL

17h 10m1 stop

11:15 pm - 9:04 amSCL-STL

12h 49m1 stop

$804Delta

Find Deal

Wed, Jan 7 - Thu, Jan 15

7:05 pm - 6:10 amSTL-SCL

32h 05m1 stop

8:20 am - 11:40 pmSCL-STL

18h 20m2 stops

$812Delta

Find Deal

Sun, Jan 11 - Tue, Jan 20

6:42 pm - 3:00 pmSTL-SCL

18h 18m2 stops

5:55 pm - 9:59 amSCL-STL

18h 04m2 stops

$824LATAM Airlines

Find Deal

Thu, Sep 18 - Sun, Sep 28

11:04 am - 6:00 amSTL-SCL

16h 56m2 stops

12:25 am - 9:15 pmSCL-STL

22h 50m2 stops

$829LATAM Airlines

Find Deal

Wed, Sep 17 - Sat, Sep 27

6:00 am - 8:50 amSTL-SCL

23h 50m1 stop

10:45 pm - 4:27 pmSCL-STL

44h 42m2 stops

$863United Airlines

Find Deal

Thu, Dec 25 - Sat, Jan 3

6:30 am - 8:50 amSTL-SCL

23h 20m2 stops

10:45 pm - 4:27 pmSCL-STL

44h 42m2 stops

$900United Airlines

Find Deal

Thu, Dec 25 - Sat, Jan 3

4:05 pm - 12:15 pmSTL-SCL

17h 10m1 stop

8:55 pm - 3:29 pmSCL-STL

21h 34m1 stop

$942Air Canada

Find Deal

Tue, Jan 13 - Mon, Jan 19

4:05 pm - 12:15 pmSTL-SCL

17h 10m1 stop

8:55 pm - 3:29 pmSCL-STL

21h 34m1 stop

$1,067Air Canada

Find Deal

Sun, Jan 11 - Wed, Jan 14

LATAM Airlines flights from St. Louis to Chile

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

LATAM Airlines

Dec 11

STL1:30 pmLambert-St Louis

14h 30m

2 stops

SCL7:00 amSantiago Arturo Merino Benitez

Dec 15

SCL6:30 pmSantiago Arturo Merino Benitez

19h 16m

2 stops

STL10:46 amLambert-St Louis

$788

Find similar

LATAM Airlines

Sep 18

STL6:42 pmLambert-St Louis

18h 18m

2 stops

SCL3:00 pmSantiago Arturo Merino Benitez

Sep 28

SCL5:55 pmSantiago Arturo Merino Benitez

18h 04m

2 stops

STL9:59 amLambert-St Louis

$824

Find similar

LATAM Airlines

Sep 17

STL11:04 amLambert-St Louis

16h 56m

2 stops

SCL6:00 amSantiago Arturo Merino Benitez

Sep 27

SCL12:25 amSantiago Arturo Merino Benitez

22h 50m

2 stops

STL9:15 pmLambert-St Louis

$829

Find similar

Air Canada flights from St. Louis to Chile

Our best Air Canada deals on St. Louis to Chile flight tickets

Air Canada

Jan 13

STL4:05 pmLambert-St Louis

17h 10m

1 stop

SCL12:15 pmSantiago Arturo Merino Benitez

Jan 19

SCL8:55 pmSantiago Arturo Merino Benitez

21h 34m

1 stop

STL3:29 pmLambert-St Louis

$942

Find similar

Air Canada

Jan 11

STL4:05 pmLambert-St Louis

17h 10m

1 stop

SCL12:15 pmSantiago Arturo Merino Benitez

Jan 14

SCL8:55 pmSantiago Arturo Merino Benitez

21h 34m

1 stop

STL3:29 pmLambert-St Louis

$1,067

Find similar

Air Canada

Dec 24

STL4:05 pmLambert-St Louis

17h 10m

1 stop

SCL12:15 pmSantiago Arturo Merino Benitez

Jan 6

SCL8:55 pmSantiago Arturo Merino Benitez

21h 34m

1 stop

STL3:29 pmLambert-St Louis

$1,087

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 11/27

3:15 pm-7:00 am

1 stop12h 45m

Santiago Arturo Merino Benitez

Mon 12/8

9:30 pm-8:09 am

1 stop13h 39m

$784

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 12/11

1:30 pm-7:00 am

2 stops14h 30m

Santiago Arturo Merino Benitez

Mon 12/15

6:30 pm-10:46 am

2 stops19h 16m

$788

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 1/7

10:00 am-6:10 am

1 stop17h 10m

Santiago Arturo Merino Benitez

Thu 1/15

11:15 pm-9:04 am

1 stop12h 49m

$804

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Sun 1/11

7:05 pm-6:10 am

1 stop32h 05m

Santiago Arturo Merino Benitez

Tue 1/20

8:20 am-11:40 pm

2 stops18h 20m

$812

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 9/18

6:42 pm-3:00 pm

2 stops18h 18m

Santiago Arturo Merino Benitez

Sun 9/28

5:55 pm-9:59 am

2 stops18h 04m

$824

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 9/17

11:04 am-6:00 am

2 stops16h 56m

Santiago Arturo Merino Benitez

Sat 9/27

12:25 am-9:15 pm

2 stops22h 50m

$829

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 12/25

6:00 am-8:50 am

1 stop23h 50m

Santiago Arturo Merino Benitez

Sat 1/3

10:45 pm-4:27 pm

2 stops44h 42m

$863

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 12/25

6:30 am-8:50 am

2 stops23h 20m

Santiago Arturo Merino Benitez

Sat 1/3

10:45 pm-4:27 pm

2 stops44h 42m

$900

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 1/13

4:05 pm-12:15 pm

1 stop17h 10m

Santiago Arturo Merino Benitez

Mon 1/19

8:55 pm-3:29 pm

1 stop21h 34m

$942

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Sun 1/11

4:05 pm-12:15 pm

1 stop17h 10m

Santiago Arturo Merino Benitez

Wed 1/14

8:55 pm-3:29 pm

1 stop21h 34m

$1,067

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Chile

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 Chile?

In general, October is the cheapest month to fly from St. Louis to Chile. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $772. If you aren’t able to travel during the month of October, then book flights to Chile from St. Louis during July instead. Flights to Chile in July, while not as cheap as those in October, still average around $878.

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

Our data shows that Wednesday is the least expensive day to fly to Chile. Tickets to fly out on this day can be as low as $955. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,189.

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

According to our data, the cheapest time of day to fly to Chile is at noon. momondo users have found flights departing from St. Louis to Chile at noon for as low as $982. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,074 on average. Flights to Chile from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Chile?

You are more likely to see cheaper flights to Chile from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Chile for around $971 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chile from St. Louis for as low as $902 on momondo.

Cheap St. Louis to Chile flight deals and tips

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

Best Price Found	$549
Fastest flight time	12h 00m
Direct flights	None
Airports in Chile	1 airport

The best one-way flight to Chile from St. Louis in the past 72 hours is $549. The best round-trip flight deal from St. Louis to Chile found on momondo in the last 72 hours is $784.

The fastest flight from St. Louis to Chile takes 12h 00m

There are no direct flights from St. Louis to Chile. Popular non-direct route for this connection is Lambert-St Louis Airport - Santiago Arturo Merino Benitez Airport.

There is 1 airport near Chile: Santiago Arturo Merino Benitez (SCL)

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Chile?
Prices for flights from Lambert-St Louis Airport to Chile are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Chile?
As of August 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Chile.
How old do you have to be to fly from Lambert-St Louis Airport to Chile?
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 Chile.
What documentation or ID do you need to fly to Chile?
The travel and health documents required for your trip to Chile can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chile. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Chile

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $742	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
LATAM Airlines	PriceFrom $762	Free Cancellation	Rating 7.5 1,840 reviews	Search LATAM Airlines flights
American Airlines	PriceFrom $823	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $883	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights

Why use momondo?

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

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

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

Yes. All flights to Chile from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chile from St. Louis.

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

If you are simply researching potential flights to Chile, momondo offers a useful price alert feature which will track prices for flights to Chile from St. Louis and alert you when they change.