Cheap flights from St. Louis to Chile from $304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Chile departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
1:03 pm - 6:55 am
STL
-
SCL
16h 52m
2 stops
LATAM Airlines Logo
8:40 pm - 8:30 am
SCL
-
STL
12h 50m
1 stop
$844LATAM Airlines
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
12:27 pm - 7:05 am
STL
-
SCL
17h 38m
2 stops
American Airlines Logo
8:35 pm - 1:22 pm
SCL
-
STL
17h 47m
2 stops
$850American Airlines
Tue, Apr 14 - Tue, Apr 21
Delta Logo
9:59 am - 7:15 am
STL
-
SCL
20h 16m
1 stop
Delta Logo
8:40 pm - 3:32 pm
SCL
-
STL
19h 52m
1 stop
$858Delta
Tue, Apr 14 - Tue, Apr 21
LATAM Airlines Logo
11:42 am - 1:25 pm
STL
-
SCL
24h 43m
3 stops
LATAM Airlines Logo
4:10 am - 11:36 pm
SCL
-
STL
20h 26m
2 stops
$864LATAM Airlines
Tue, Apr 14 - Tue, Apr 21
LATAM Airlines Logo
12:04 pm - 5:35 am
STL
-
SCL
15h 31m
2 stops
LATAM Airlines Logo
11:00 pm - 5:53 pm
SCL
-
STL
19h 53m
2 stops
$873LATAM Airlines
Tue, Mar 31 - Tue, Apr 7
LATAM Airlines Logo
11:42 am - 6:55 am
STL
-
SCL
18h 13m
2 stops
LATAM Airlines Logo
8:30 am - 10:34 am
SCL
-
STL
27h 04m
3 stops
$893LATAM Airlines
Wed, Apr 15 - Wed, Apr 22
LATAM Airlines Logo
5:21 pm - 8:15 am
STL
-
SCL
12h 54m
1 stop
LATAM Airlines Logo
8:40 pm - 11:09 am
SCL
-
STL
15h 29m
1 stop
$906LATAM Airlines
Tue, Mar 31 - Tue, Apr 7
American Airlines Logo
2:12 pm - 7:05 am
STL
-
SCL
15h 53m
2 stops
American Airlines Logo
8:35 pm - 1:22 pm
SCL
-
STL
17h 47m
2 stops
$923American Airlines
Fri, Apr 17 - Fri, Apr 24
LATAM Airlines Logo
10:12 am - 5:35 am
STL
-
SCL
17h 23m
2 stops
LATAM Airlines Logo
8:30 am - 11:09 am
SCL
-
STL
27h 39m
3 stops
$943LATAM Airlines
Tue, Mar 31 - Tue, Apr 7
LATAM Airlines Logo
4:21 pm - 7:40 am
STL
-
SCL
13h 19m
1 stop
LATAM Airlines Logo
8:55 pm - 11:58 pm
SCL
-
STL
29h 03m
2 stops
$978LATAM Airlines
Fri, Mar 20 - Mon, Mar 30

LATAM Airlines flights from St. Louis to Chile

Our best LATAM Airlines deals on St. Louis to Chile flight tickets
LATAM Airlines
Apr 15
STL1:03 pmLambert-St Louis
16h 52m
2 stops
SCL6:55 amSantiago Arturo Merino Benitez
Apr 22
SCL8:40 pmSantiago Arturo Merino Benitez
12h 50m
1 stop
STL8:30 amLambert-St Louis
$844
LATAM Airlines
Apr 14
STL11:42 amLambert-St Louis
24h 43m
3 stops
SCL1:25 pmSantiago Arturo Merino Benitez
Apr 21
SCL4:10 amSantiago Arturo Merino Benitez
20h 26m
2 stops
STL11:36 pmLambert-St Louis
$864
LATAM Airlines
Mar 31
STL12:04 pmLambert-St Louis
15h 31m
2 stops
SCL5:35 amSantiago Arturo Merino Benitez
Apr 7
SCL11:00 pmSantiago Arturo Merino Benitez
19h 53m
2 stops
STL5:53 pmLambert-St Louis
$873

American Airlines flights from St. Louis to Chile

Our best American Airlines deals on St. Louis to Chile flight tickets
American Airlines
Apr 14
STL12:27 pmLambert-St Louis
17h 38m
2 stops
SCL7:05 amSantiago Arturo Merino Benitez
Apr 21
SCL8:35 pmSantiago Arturo Merino Benitez
17h 47m
2 stops
STL1:22 pmLambert-St Louis
$850
American Airlines
Apr 17
STL2:12 pmLambert-St Louis
15h 53m
2 stops
SCL7:05 amSantiago Arturo Merino Benitez
Apr 24
SCL8:35 pmSantiago Arturo Merino Benitez
17h 47m
2 stops
STL1:22 pmLambert-St Louis
$923
American Airlines
Mar 11
STL7:00 amLambert-St Louis
22h 00m
1 stop
SCL7:00 amSantiago Arturo Merino Benitez
Mar 23
SCL9:20 pmSantiago Arturo Merino Benitez
15h 12m
1 stop
STL10:32 amLambert-St Louis
$993

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Chile that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 4, 2026.
Use the filters below to find and compare flights from St. Louis to Chile that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 4/15

1:03 pm-6:55 am

2 stops16h 52m

Santiago Arturo Merino Benitez

Wed 4/22

8:40 pm-8:30 am

1 stop12h 50m

$844

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 4/14

12:27 pm-7:05 am

2 stops17h 38m

Santiago Arturo Merino Benitez

Tue 4/21

8:35 pm-1:22 pm

2 stops17h 47m

$850

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 4/14

9:59 am-7:15 am

1 stop20h 16m

Santiago Arturo Merino Benitez

Tue 4/21

8:40 pm-3:32 pm

1 stop19h 52m

$858

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 4/14

11:42 am-1:25 pm

3 stops24h 43m

Santiago Arturo Merino Benitez

Tue 4/21

4:10 am-11:36 pm

2 stops20h 26m

$864

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 3/31

12:04 pm-5:35 am

2 stops15h 31m

Santiago Arturo Merino Benitez

Tue 4/7

11:00 pm-5:53 pm

2 stops19h 53m

$873

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 4/15

11:42 am-6:55 am

2 stops18h 13m

Santiago Arturo Merino Benitez

Wed 4/22

8:30 am-10:34 am

3 stops27h 04m

$893

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 3/31

5:21 pm-8:15 am

1 stop12h 54m

Santiago Arturo Merino Benitez

Tue 4/7

8:40 pm-11:09 am

1 stop15h 29m

$906

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Fri 4/17

2:12 pm-7:05 am

2 stops15h 53m

Santiago Arturo Merino Benitez

Fri 4/24

8:35 pm-1:22 pm

2 stops17h 47m

$923

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Tue 3/31

10:12 am-5:35 am

2 stops17h 23m

Santiago Arturo Merino Benitez

Tue 4/7

8:30 am-11:09 am

3 stops27h 39m

$943

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Fri 3/20

4:21 pm-7:40 am

1 stop13h 19m

Santiago Arturo Merino Benitez

Mon 3/30

8:55 pm-11:58 pm

2 stops29h 03m

$978

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chile from

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

What is the cheapest month to fly to Chile?

In general, July 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 $873. If you aren’t able to travel during the month of July, then book flights to Chile from St. Louis during December instead. Flights to Chile in December, while not as cheap as those in July, still average around $903.

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

Fastest flight time

15h 37m

Direct flights

None
The fastest flight from St. Louis to Chile takes 15h 37m
There are no direct flights from St. Louis to Chile. There are no popular flight routes from St. Louis to Chile.
  • 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?

  • 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
DeltaPriceFrom $611Free CancellationRating
7.9
8,245 reviews
Search Delta flights
American AirlinesPriceFrom $689Free CancellationRating
7.1
11,380 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $803Free CancellationRating
7.4
1,916 reviews
Search LATAM 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.

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1 adult
Fri 4/3
Fri 4/10

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