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Cheap flights from Chile to St. Louis from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chile to St. Louis departing on 3/23. 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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Find the cheapest flights from Chile to St. Louis

Recent round-trip flight deals from Chile to St. Louis

Enter your travel dates to find the best prices.
LATAM Airlines Logo
9:30 pm - 8:58 am
SCL
-
STL
14h 28m1 stop
LATAM Airlines Logo
6:00 am - 7:40 am
STL
-
SCL
22h 40m1 stop
$764LATAM Airlines
Thu, Dec 25 - Mon, Dec 29
United Airlines Logo
10:45 pm - 12:27 pm
SCL
-
STL
16h 42m2 stops
United Airlines Logo
6:35 pm - 8:50 am
STL
-
SCL
35h 15m2 stops
$769United Airlines
Thu, Dec 25 - Mon, Dec 29
LATAM Airlines Logo
11:00 pm - 6:02 pm
SCL
-
STL
20h 02m2 stops
LATAM Airlines Logo
11:51 am - 7:00 am
STL
-
SCL
18h 09m1 stop
$792LATAM Airlines
Wed, May 27 - Thu, Jun 11
Delta Logo
8:40 pm - 3:58 pm
SCL
-
STL
20h 18m1 stop
Delta Logo
7:20 am - 7:00 am
STL
-
SCL
22h 40m1 stop
$795Delta
Mon, May 11 - Mon, May 18
LATAM Airlines Logo
5:15 am - 11:42 pm
SCL
-
STL
20h 27m2 stops
LATAM Airlines Logo
10:02 am - 1:40 pm
STL
-
SCL
25h 38m3 stops
$822LATAM Airlines
Mon, Mar 23 - Tue, Mar 31
United Airlines Logo
10:45 pm - 2:26 pm
SCL
-
STL
18h 41m2 stops
United Airlines Logo
9:55 am - 8:50 am
STL
-
SCL
19h 55m2 stops
$964United Airlines
Thu, Dec 25 - Mon, Dec 29
United Airlines Logo
10:45 pm - 2:26 pm
SCL
-
STL
18h 41m2 stops
United Airlines Logo
9:55 am - 8:50 am
STL
-
SCL
19h 55m2 stops
$1,039United Airlines
Thu, Dec 25 - Mon, Dec 29
Multiple Airlines Logo
11:55 pm - 8:05 pm
SCL
-
STL
21h 10m2 stops
Multiple Airlines Logo
1:00 pm - 9:10 pm
STL
-
SCL
31h 10m3 stops
$1,374Multiple Airlines
Mon, May 11 - Mon, May 18
Multiple Airlines Logo
11:55 pm - 8:05 pm
SCL
-
STL
21h 10m2 stops
Multiple Airlines Logo
1:30 pm - 12:09 am
STL
-
SCL
33h 39m3 stops
$1,423Multiple Airlines
Wed, May 27 - Thu, Jun 11
Multiple Airlines Logo
5:00 am - 3:16 pm
SCL
-
STL
35h 16m3 stops
Multiple Airlines Logo
1:00 pm - 9:10 pm
STL
-
SCL
31h 10m3 stops
$1,486Multiple Airlines
Mon, May 11 - Mon, May 18

LATAM Airlines flights from Chile to St. Louis

Our best LATAM Airlines deals on Chile to St. Louis flight tickets
LATAM Airlines
Dec 25
SCL9:30 pmSantiago Arturo Merino Benitez
14h 28m
1 stop
STL8:58 amLambert-St Louis
Dec 29
STL6:00 amLambert-St Louis
22h 40m
1 stop
SCL7:40 amSantiago Arturo Merino Benitez
$764
Find similar
LATAM Airlines
Dec 25
SCL9:30 pmSantiago Arturo Merino Benitez
14h 28m
1 stop
STL8:58 amLambert-St Louis
Dec 29
STL9:47 amLambert-St Louis
16h 48m
2 stops
SCL5:35 amSantiago Arturo Merino Benitez
$769
Find similar
LATAM Airlines
May 27
SCL11:00 pmSantiago Arturo Merino Benitez
20h 02m
2 stops
STL6:02 pmLambert-St Louis
Jun 11
STL11:51 amLambert-St Louis
18h 09m
1 stop
SCL7:00 amSantiago Arturo Merino Benitez
$792
Find similar

United Airlines flights from Chile to St. Louis

Our best United Airlines deals on Chile to St. Louis flight tickets
United Airlines
Dec 25
SCL10:45 pmSantiago Arturo Merino Benitez
18h 41m
2 stops
STL2:26 pmLambert-St Louis
Dec 29
STL9:55 amLambert-St Louis
19h 55m
2 stops
SCL8:50 amSantiago Arturo Merino Benitez
$964
Find similar
United Airlines
Dec 25
SCL10:45 pmSantiago Arturo Merino Benitez
18h 41m
2 stops
STL2:26 pmLambert-St Louis
Dec 29
STL9:55 amLambert-St Louis
19h 55m
2 stops
SCL8:50 amSantiago Arturo Merino Benitez
$1,039
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chile to St. Louis 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 December 11, 2025.
Use the filters below to find and compare flights from Chile to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Thu 12/25

9:30 pm-8:58 am

1 stop14h 28m

Lambert-St Louis

Mon 12/29

6:00 am-7:40 am

1 stop22h 40m

$764

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Thu 12/25

10:45 pm-12:27 pm

2 stops16h 42m

Lambert-St Louis

Mon 12/29

6:35 pm-8:50 am

2 stops35h 15m

$769

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 5/27

11:00 pm-6:02 pm

2 stops20h 02m

Lambert-St Louis

Thu 6/11

11:51 am-7:00 am

1 stop18h 09m

$792

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Mon 5/11

8:40 pm-3:58 pm

1 stop20h 18m

Lambert-St Louis

Mon 5/18

7:20 am-7:00 am

1 stop22h 40m

$795

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Mon 3/23

5:15 am-11:42 pm

2 stops20h 27m

Lambert-St Louis

Tue 3/31

10:02 am-1:40 pm

3 stops25h 38m

$822

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Thu 12/25

10:45 pm-2:26 pm

2 stops18h 41m

Lambert-St Louis

Mon 12/29

9:55 am-8:50 am

2 stops19h 55m

$964

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Thu 12/25

10:45 pm-2:26 pm

2 stops18h 41m

Lambert-St Louis

Mon 12/29

9:55 am-8:50 am

2 stops19h 55m

$1,039

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Mon 5/11

11:55 pm-8:05 pm

2 stops21h 10m

Lambert-St Louis

Mon 5/18

1:00 pm-9:10 pm

3 stops31h 10m

$1,374

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 5/27

11:55 pm-8:05 pm

2 stops21h 10m

Lambert-St Louis

Thu 6/11

1:30 pm-12:09 am

3 stops33h 39m

$1,423

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Mon 5/11

5:00 am-3:16 pm

3 stops35h 16m

Lambert-St Louis

Mon 5/18

1:00 pm-9:10 pm

3 stops31h 10m

$1,486

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 St. Louis from

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

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 day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $780. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,051. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

Cheap Chile to St. Louis flight deals and tips

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

Fastest flight time

14h 04m

Direct flights

None
The fastest flight from Chile to St. Louis takes 14h 04m
There are no direct flights from Chile to St. Louis. There are no popular flight routes from Chile to St. Louis.
Search flight deals

  • When did momondo last update prices for flights from Chile to Lambert-St Louis Airport?

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

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

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

    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 Chile to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chile to St. Louis

Compare and see reviews for airlines that fly from Chile to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $877Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $948Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Chile is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Flights from Chile to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 St. Louis from Chile.

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

Yes momondo offers price alerts on flights to St. Louis from Chile. 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.

An easier way to manage your St. Louis trip

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