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Cheap flights from Santiago to St. Louis from $916

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Santiago to St. Louis departing on 9/1. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Santiago to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:00 pm - 4:17 pm
SCL
-
STL
18h 17m
2 stops
Delta Logo
12:00 pm - 5:50 am
STL
-
SCL
15h 50m
2 stops
$916Delta
Tue, Sep 1 - Tue, Sep 15
LATAM Airlines Logo
7:55 pm - 11:46 am
SCL
-
STL
16h 51m
2 stops
LATAM Airlines Logo
2:30 pm - 2:25 pm
STL
-
SCL
21h 55m
3 stops
$930LATAM Airlines
Tue, Sep 1 - Tue, Sep 15
American Airlines Logo
9:50 pm - 9:49 pm
SCL
-
STL
25h 59m
1 stop
American Airlines Logo
5:10 pm - 7:25 am
STL
-
SCL
12h 15m
1 stop
$943American Airlines
Tue, Sep 8 - Tue, Sep 15
LATAM Airlines Logo
8:30 am - 11:46 am
SCL
-
STL
28h 16m
3 stops
LATAM Airlines Logo
2:30 pm - 2:25 pm
STL
-
SCL
21h 55m
3 stops
$961LATAM Airlines
Tue, Sep 1 - Tue, Sep 15
LATAM Airlines Logo
5:40 am - 9:20 am
SCL
-
STL
28h 40m
2 stops
LATAM Airlines Logo
6:00 am - 4:50 am
STL
-
SCL
21h 50m
2 stops
$987LATAM Airlines
Fri, Aug 14 - Mon, Aug 17
American Airlines Logo
8:50 pm - 10:40 pm
SCL
-
STL
26h 50m
1 stop
American Airlines Logo
2:11 pm - 8:00 am
STL
-
SCL
15h 49m
1 stop
$989American Airlines
Fri, Sep 4 - Fri, Sep 11
American Airlines Logo
9:50 pm - 6:59 pm
SCL
-
STL
23h 09m
2 stops
American Airlines Logo
12:46 pm - 8:00 am
STL
-
SCL
17h 14m
2 stops
$990American Airlines
Sun, Sep 6 - Sun, Sep 13
LATAM Airlines Logo
12:05 am - 7:46 pm
SCL
-
STL
21h 41m
2 stops
LATAM Airlines Logo
5:28 pm - 3:00 pm
STL
-
SCL
19h 32m
2 stops
$991LATAM Airlines
Fri, Oct 23 - Wed, Oct 28
American Airlines Logo
8:50 pm - 6:05 pm
SCL
-
STL
22h 15m
2 stops
American Airlines Logo
10:14 am - 8:00 am
STL
-
SCL
19h 46m
2 stops
$993American Airlines
Fri, Sep 4 - Fri, Sep 11
American Airlines Logo
9:50 pm - 6:59 pm
SCL
-
STL
23h 09m
2 stops
American Airlines Logo
2:11 pm - 8:00 am
STL
-
SCL
15h 49m
1 stop
$994American Airlines
Sun, Sep 6 - Sun, Sep 13

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Delta flights from Santiago to St. Louis

Our best Delta deals on Santiago to St. Louis flight tickets
Delta
Sep 1
SCL11:00 pmSantiago Arturo Merino Benitez
18h 17m
2 stops
STL4:17 pmLambert-St Louis
Sep 15
STL12:00 pmLambert-St Louis
15h 50m
2 stops
SCL5:50 amSantiago Arturo Merino Benitez
$916
Delta
Sep 6
SCL8:40 pmSantiago Arturo Merino Benitez
14h 40m
1 stop
STL9:20 amLambert-St Louis
Sep 13
STL6:00 amLambert-St Louis
24h 15m
1 stop
SCL8:15 amSantiago Arturo Merino Benitez
$1,048
Delta
Aug 14
SCL8:40 pmSantiago Arturo Merino Benitez
13h 40m
1 stop
STL9:20 amLambert-St Louis
Aug 17
STL11:00 amLambert-St Louis
19h 15m
1 stop
SCL7:15 amSantiago Arturo Merino Benitez
$1,050

LATAM Airlines flights from Santiago to St. Louis

Our best LATAM Airlines deals on Santiago to St. Louis flight tickets
LATAM Airlines
Sep 1
SCL7:55 pmSantiago Arturo Merino Benitez
16h 51m
2 stops
STL11:46 amLambert-St Louis
Sep 15
STL2:30 pmLambert-St Louis
21h 55m
3 stops
SCL2:25 pmSantiago Arturo Merino Benitez
$930
LATAM Airlines
Sep 1
SCL8:30 amSantiago Arturo Merino Benitez
28h 16m
3 stops
STL11:46 amLambert-St Louis
Sep 15
STL2:30 pmLambert-St Louis
21h 55m
3 stops
SCL2:25 pmSantiago Arturo Merino Benitez
$961
LATAM Airlines
Aug 14
SCL5:40 amSantiago Arturo Merino Benitez
28h 40m
2 stops
STL9:20 amLambert-St Louis
Aug 17
STL6:00 amLambert-St Louis
21h 50m
2 stops
SCL4:50 amSantiago Arturo Merino Benitez
$987

momondo Fare Finder

 
Customize your flight search to find flights from Santiago 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 July 26, 2026.
Use the filters below to find and compare flights from Santiago to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 9/1

11:00 pm-4:17 pm

2 stops18h 17m

Lambert-St Louis

Tue 9/15

12:00 pm-5:50 am

2 stops15h 50m

$916

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 9/1

7:55 pm-11:46 am

2 stops16h 51m

Lambert-St Louis

Tue 9/15

2:30 pm-2:25 pm

3 stops21h 55m

$930

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 9/8

9:50 pm-9:49 pm

1 stop25h 59m

Lambert-St Louis

Tue 9/15

5:10 pm-7:25 am

1 stop12h 15m

$943

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 9/1

8:30 am-11:46 am

3 stops28h 16m

Lambert-St Louis

Tue 9/15

2:30 pm-2:25 pm

3 stops21h 55m

$961

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Fri 8/14

5:40 am-9:20 am

2 stops28h 40m

Lambert-St Louis

Mon 8/17

6:00 am-4:50 am

2 stops21h 50m

$987

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Fri 9/4

8:50 pm-10:40 pm

1 stop26h 50m

Lambert-St Louis

Fri 9/11

2:11 pm-8:00 am

1 stop15h 49m

$989

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Sun 9/6

9:50 pm-6:59 pm

2 stops23h 09m

Lambert-St Louis

Sun 9/13

12:46 pm-8:00 am

2 stops17h 14m

$990

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Fri 10/23

12:05 am-7:46 pm

2 stops21h 41m

Lambert-St Louis

Wed 10/28

5:28 pm-3:00 pm

2 stops19h 32m

$991

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Fri 9/4

8:50 pm-6:05 pm

2 stops22h 15m

Lambert-St Louis

Fri 9/11

10:14 am-8:00 am

2 stops19h 46m

$993

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Sun 9/6

9:50 pm-6:59 pm

2 stops23h 09m

Lambert-St Louis

Sun 9/13

2:11 pm-8:00 am

1 stop15h 49m

$994

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Santiago 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 typical price of a round-trip flight between Santiago and St. Louis?

Prices are currently low for flights on this route.

Typical prices usually range from $930 to $1,024.
The lowest price recently found on this route was $916.

What is the cheapest month to fly to St. Louis?

In general, September is the cheapest month to fly from Santiago to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $674. The month of December is another great option to travel to St. Louis, with average flight prices from Santiago averaging around $795.

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

You could potentially save up to 27% on your flight if you consider stops on a Santiago to St. Louis flight.

When to book flights from Santiago to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Santiago to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Santiago to St. Louis (SCL to STL) flight deals and tips

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

Fastest flight time

16h 06m

Direct flights

None
The fastest flight from Santiago to St. Louis takes 16h 06m
There are no direct flights from Santiago to St. Louis. There are no popular flight routes from Santiago to St. Louis.
Search flight deals

Frequently asked questions about flying from Santiago to St. Louis

  • How far is Santiago Arturo Merino Benitez to Lambert-St Louis by plane?

    Santiago Arturo Merino Benitez and Lambert-St Louis are 5131.6 mi apart from one another. By plane, this route typically takes 16h 06m.

  • When did momondo last update prices for flights from Santiago Arturo Merino Benitez Airport to Lambert-St Louis Airport?

    Prices for flights from Santiago Arturo Merino Benitez Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Santiago Arturo Merino Benitez Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Santiago Arturo Merino Benitez Airport to Lambert-St Louis Airport.

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

    The required travel and health documents for your Lambert-St Louis Airport 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

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

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Santiago to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Santiago 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 Santiago.

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

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

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