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Cheap flights from Santiago to St. Louis from $764

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 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
6:30 pm - 10:43 amSCL-STL
19h 13m2 stops
LATAM Airlines Logo
9:33 am - 6:25 amSTL-SCL
17h 52m2 stops
$764LATAM Airlines
Find Deal
jue., nov. 13 - lun., nov. 17
Delta Logo
11:10 pm - 5:57 pmSCL-STL
21h 47m1 stop
Delta Logo
2:11 pm - 6:10 amSTL-SCL
12h 59m1 stop
$835Delta
Find Deal
vie., nov. 28 - vie., dic. 5
LATAM Airlines Logo
11:10 pm - 9:41 amSCL-STL
13h 31m1 stop
LATAM Airlines Logo
9:30 am - 2:25 pmSTL-SCL
25h 55m3 stops
$849LATAM Airlines
Find Deal
vie., nov. 28 - vie., dic. 5
LATAM Airlines Logo
12:50 am - 6:35 pmSCL-STL
20h 45m2 stops
LATAM Airlines Logo
2:11 pm - 7:40 amSTL-SCL
14h 29m1 stop
$1,114LATAM Airlines
Find Deal
jue., nov. 27 - vie., dic. 5
United Airlines Logo
10:45 pm - 3:46 pmSCL-STL
20h 01m2 stops
United Airlines Logo
5:27 pm - 8:50 amSTL-SCL
36h 23m3 stops
$1,160United Airlines
Find Deal
vie., nov. 28 - vie., dic. 5
LATAM Airlines Logo
12:50 am - 6:35 pmSCL-STL
20h 45m2 stops
LATAM Airlines Logo
2:11 pm - 2:25 pmSTL-SCL
21h 14m3 stops
$1,428LATAM Airlines
Find Deal
jue., nov. 27 - vie., dic. 5
Copa Airlines Logo
1:29 am - 7:39 pmSCL-STL
21h 10m2 stops
Copa Airlines Logo
8:25 am - 8:21 pmSTL-SCL
32h 56m2 stops
$2,031Copa Airlines
Find Deal
mié., nov. 12 - lun., nov. 17
Copa Airlines Logo
1:29 am - 7:39 pmSCL-STL
21h 10m2 stops
Copa Airlines Logo
8:25 am - 6:01 amSTL-SCL
18h 36m2 stops
$2,494Copa Airlines
Find Deal
mié., nov. 12 - lun., nov. 17

LATAM Airlines flights from Santiago to St. Louis

Our best LATAM Airlines deals on Santiago to St. Louis flight tickets
LATAM Airlines
Nov 13
SCL6:30 pmSantiago Arturo Merino Benitez
19h 13m
2 stops
STL10:43 amLambert-St Louis
Nov 17
STL9:33 amLambert-St Louis
17h 52m
2 stops
SCL6:25 amSantiago Arturo Merino Benitez
$764
Find similar
LATAM Airlines
Nov 28
SCL11:10 pmSantiago Arturo Merino Benitez
13h 31m
1 stop
STL9:41 amLambert-St Louis
Dec 5
STL9:30 amLambert-St Louis
25h 55m
3 stops
SCL2:25 pmSantiago Arturo Merino Benitez
$849
Find similar
LATAM Airlines
Nov 27
SCL12:50 amSantiago Arturo Merino Benitez
20h 45m
2 stops
STL6:35 pmLambert-St Louis
Dec 5
STL2:11 pmLambert-St Louis
14h 29m
1 stop
SCL7:40 amSantiago Arturo Merino Benitez
$1,114
Find similar

Copa Airlines flights from Santiago to St. Louis

Our best Copa Airlines deals on Santiago to St. Louis flight tickets
Copa Airlines
Nov 12
SCL1:29 amSantiago Arturo Merino Benitez
21h 10m
2 stops
STL7:39 pmLambert-St Louis
Nov 17
STL8:25 amLambert-St Louis
32h 56m
2 stops
SCL8:21 pmSantiago Arturo Merino Benitez
$2,031
Find similar
Copa Airlines
Nov 12
SCL1:29 amSantiago Arturo Merino Benitez
21h 10m
2 stops
STL7:39 pmLambert-St Louis
Nov 17
STL8:25 amLambert-St Louis
18h 36m
2 stops
SCL6:01 amSantiago Arturo Merino Benitez
$2,494
Find similar

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 octubre 30, 2025.
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

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

jue. 11/13

6:30 pm-10:43 am

2 stops19h 13m

Lambert-St Louis

lun. 11/17

9:33 am-6:25 am

2 stops17h 52m

$764

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

vie. 11/28

11:10 pm-5:57 pm

1 stop21h 47m

Lambert-St Louis

vie. 12/5

2:11 pm-6:10 am

1 stop12h 59m

$835

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

vie. 11/28

11:10 pm-9:41 am

1 stop13h 31m

Lambert-St Louis

vie. 12/5

9:30 am-2:25 pm

3 stops25h 55m

$849

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

jue. 11/27

12:50 am-6:35 pm

2 stops20h 45m

Lambert-St Louis

vie. 12/5

2:11 pm-7:40 am

1 stop14h 29m

$1,114

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

vie. 11/28

10:45 pm-3:46 pm

2 stops20h 01m

Lambert-St Louis

vie. 12/5

5:27 pm-8:50 am

3 stops36h 23m

$1,160

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

jue. 11/27

12:50 am-6:35 pm

2 stops20h 45m

Lambert-St Louis

vie. 12/5

2:11 pm-2:25 pm

3 stops21h 14m

$1,428

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

mié. 11/12

1:29 am-7:39 pm

2 stops21h 10m

Lambert-St Louis

lun. 11/17

8:25 am-8:21 pm

2 stops32h 56m

$2,031

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

mié. 11/12

1:29 am-7:39 pm

2 stops21h 10m

Lambert-St Louis

lun. 11/17

8:25 am-6:01 am

2 stops18h 36m

$2,494

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

jue. 11/13

8:50 am-10:43 am

2 stops28h 53m

$2,430

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

mié. 11/12

4:35 am-11:44 pm

2 stops22h 09m

$2,457

Flights are sorted by cheapest round-trip flights first.

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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 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.

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

Direct flights

None
There are no direct flights from Santiago to St. Louis. There are no popular flight routes from Santiago to St. Louis.
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  • 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 13h 31m.

  • 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 many operators does momondo search for flights from Santiago Arturo Merino Benitez Airport to Lambert-St Louis Airport?

  • 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.

  • What is the most popular airline from Santiago to St. Louis?

Best airlines flying from Santiago to St. Louis

Compare and see reviews for airlines that fly from Santiago to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $782Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
DeltaPriceFrom $843Free CancellationRating
7.9
7,998 reviews
Search Delta 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
Florissant
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
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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