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Cheap flights from Santiago to St. Louis from $800

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 7/14. 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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Find the cheapest flights from Santiago to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
12:40 am - 6:02 pm
SCL
-
STL
18h 22m
2 stops
LATAM Airlines Logo
1:30 pm - 6:55 am
STL
-
SCL
16h 25m
2 stops
$800LATAM Airlines
Tue, Jul 14 - Wed, Aug 5
LATAM Airlines Logo
12:40 am - 6:02 pm
SCL
-
STL
18h 22m
2 stops
LATAM Airlines Logo
1:30 pm - 6:55 am
STL
-
SCL
16h 25m
2 stops
$801LATAM Airlines
Tue, Jul 14 - Wed, Aug 5
Delta Logo
11:05 pm - 6:02 pm
SCL
-
STL
19h 57m
2 stops
Delta Logo
1:30 pm - 7:15 am
STL
-
SCL
16h 45m
1 stop
$816Delta
Wed, Jul 15 - Wed, Aug 5
LATAM Airlines Logo
11:05 pm - 11:38 pm
SCL
-
STL
25h 33m
2 stops
LATAM Airlines Logo
6:00 am - 6:00 am
STL
-
SCL
23h 00m
2 stops
$831LATAM Airlines
Wed, Jul 1 - Wed, Jul 8
Delta Logo
10:55 pm - 4:40 pm
SCL
-
STL
18h 45m
1 stop
Delta Logo
11:51 am - 6:50 am
STL
-
SCL
17h 59m
2 stops
$836Delta
Sat, May 30 - Thu, Jul 2
Delta Logo
11:10 pm - 11:02 am
SCL
-
STL
14h 52m
1 stop
Delta Logo
6:00 am - 5:35 am
STL
-
SCL
20h 35m
2 stops
$849Delta
Wed, Feb 25 - Wed, Mar 4
United Airlines Logo
10:45 pm - 10:14 pm
SCL
-
STL
26h 29m
1 stop
United Airlines Logo
6:55 pm - 8:50 am
STL
-
SCL
34h 55m
2 stops
$903United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
10:45 pm - 9:05 pm
SCL
-
STL
25h 20m
2 stops
United Airlines Logo
6:55 pm - 8:50 am
STL
-
SCL
34h 55m
2 stops
$911United Airlines
Wed, Feb 25 - Sun, Mar 1
LATAM Airlines Logo
11:10 pm - 5:42 pm
SCL
-
STL
21h 32m
1 stop
LATAM Airlines Logo
10:13 am - 7:40 am
STL
-
SCL
18h 27m
1 stop
$913LATAM Airlines
Wed, Feb 25 - Sun, Mar 1
LATAM Airlines Logo
11:05 pm - 8:07 am
SCL
-
STL
34h 02m
2 stops
LATAM Airlines Logo
1:30 pm - 7:15 am
STL
-
SCL
16h 45m
1 stop
$1,033LATAM Airlines
Wed, Jul 1 - Wed, Jul 8

Delta flights from Santiago to St. Louis

Our best Delta deals on Santiago to St. Louis flight tickets
Delta
Jul 15
SCL8:40 pmSantiago Arturo Merino Benitez
17h 13m
1 stop
STL12:53 pmLambert-St Louis
Aug 5
STL7:20 amLambert-St Louis
22h 55m
1 stop
SCL7:15 amSantiago Arturo Merino Benitez
$816
Delta
May 30
SCL10:55 pmSantiago Arturo Merino Benitez
20h 07m
2 stops
STL6:02 pmLambert-St Louis
Jul 2
STL11:51 amLambert-St Louis
17h 59m
2 stops
SCL6:50 amSantiago Arturo Merino Benitez
$836
Delta
Feb 25
SCL11:10 pmSantiago Arturo Merino Benitez
12h 56m
1 stop
STL9:06 amLambert-St Louis
Mar 4
STL6:00 amLambert-St Louis
22h 40m
1 stop
SCL7:40 amSantiago Arturo Merino Benitez
$849

LATAM Airlines flights from Santiago to St. Louis

Our best LATAM Airlines deals on Santiago to St. Louis flight tickets
LATAM Airlines
Jul 14
SCL12:40 amSantiago Arturo Merino Benitez
18h 22m
2 stops
STL6:02 pmLambert-St Louis
Aug 5
STL1:30 pmLambert-St Louis
16h 25m
2 stops
SCL6:55 amSantiago Arturo Merino Benitez
$800
LATAM Airlines
Jul 14
SCL12:40 amSantiago Arturo Merino Benitez
18h 22m
2 stops
STL6:02 pmLambert-St Louis
Aug 5
STL1:30 pmLambert-St Louis
16h 25m
2 stops
SCL6:55 amSantiago Arturo Merino Benitez
$801
LATAM Airlines
Jul 1
SCL11:05 pmSantiago Arturo Merino Benitez
25h 33m
2 stops
STL11:38 pmLambert-St Louis
Jul 8
STL6:00 amLambert-St Louis
23h 00m
2 stops
SCL6:00 amSantiago Arturo Merino Benitez
$831

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 January 27, 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

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 7/14

12:40 am-6:02 pm

2 stops18h 22m

Lambert-St Louis

Wed 8/5

1:30 pm-6:55 am

2 stops16h 25m

$800

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Tue 7/14

12:40 am-6:02 pm

2 stops18h 22m

Lambert-St Louis

Wed 8/5

1:30 pm-6:55 am

2 stops16h 25m

$801

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 7/15

11:05 pm-6:02 pm

2 stops19h 57m

Lambert-St Louis

Wed 8/5

1:30 pm-7:15 am

1 stop16h 45m

$816

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 7/1

11:05 pm-11:38 pm

2 stops25h 33m

Lambert-St Louis

Wed 7/8

6:00 am-6:00 am

2 stops23h 00m

$831

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Sat 5/30

10:55 pm-4:40 pm

1 stop18h 45m

Lambert-St Louis

Thu 7/2

11:51 am-6:50 am

2 stops17h 59m

$836

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 2/25

11:10 pm-11:02 am

1 stop14h 52m

Lambert-St Louis

Wed 3/4

6:00 am-5:35 am

2 stops20h 35m

$849

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 2/25

10:45 pm-10:14 pm

1 stop26h 29m

Lambert-St Louis

Sun 3/1

6:55 pm-8:50 am

2 stops34h 55m

$903

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 2/25

10:45 pm-9:05 pm

2 stops25h 20m

Lambert-St Louis

Sun 3/1

6:55 pm-8:50 am

2 stops34h 55m

$911

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 2/25

11:10 pm-5:42 pm

1 stop21h 32m

Lambert-St Louis

Sun 3/1

10:13 am-7:40 am

1 stop18h 27m

$913

SantiagoSt. Louis

SCL - STL

SCLSTL

Santiago Arturo Merino Benitez

Wed 7/1

11:05 pm-8:07 am

2 stops34h 02m

Lambert-St Louis

Wed 7/8

1:30 pm-7:15 am

1 stop16h 45m

$1,033

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?

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

In general, August 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 $777. The month of December is another great option to travel to St. Louis, with average flight prices from Santiago averaging around $795.

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

12h 55m

Direct flights

None
The fastest flight from Santiago to St. Louis takes 12h 55m
There are no direct flights from Santiago to St. Louis. There are no popular flight routes from Santiago to St. Louis.
Search flight deals

  • 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 12h 55m.

  • 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
DeltaPriceFrom $877Free CancellationRating
7.9
8,119 reviews
Search Delta flights
American AirlinesPriceFrom $948Free CancellationRating
7.2
11,197 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
Florissant
O'Fallon
Collinsville
Fenton
St. Peters
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Glencoe
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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