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Chile

$828+ Cheap flights from St. Louis (STL) to Chile

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SCL
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from St. Louis to Chile

Cheapest flights from St. Louis to Chile
Explore the most affordable flight options available from St. Louis to Chile. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This LATAM Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:00 am
STL
-
SCL
2 stops20h 35m
LATAM Airlines
Tue 3/1012:20 am
SCL
-
STL
2 stops19h 33m
LATAM Airlines
Deal found 1/18$828
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
STL
-
SCL
1 stop23h 50m
United Airlines
Mon 3/239:45 pm
SCL
-
STL
1 stop26h 31m
United Airlines
Deal found 1/19$846
This KAYAK deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:50 am
STL
-
SCL
1 stop21h 00m
Multiple Airlines
Sat 11/1410:45 pm
SCL
-
STL
1 stop13h 57m
Multiple Airlines
Deal found 1/18$848
This Air Canada deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:05 pm
STL
-
SCL
1 stop17h 10m
Air Canada
Wed 3/117:55 pm
SCL
-
STL
1 stop21h 34m
Air Canada
Deal found 1/18$852
This United Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:28 pm
STL
-
SCL
1 stop13h 22m
United Airlines
Mon 3/239:45 pm
SCL
-
STL
1 stop13h 36m
United Airlines
Deal found 1/18$858
This LATAM Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:55 am
STL
-
SCL
3 stops23h 35m
LATAM Airlines
Thu 3/124:35 am
SCL
-
STL
2 stops21h 23m
LATAM Airlines
Deal found 1/19$863
This KAYAK deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:00 am
STL
-
SCL
2 stops18h 00m
LATAM Airlines
Sat 11/145:40 am
SCL
-
STL
2 stops20h 59m
LATAM Airlines
Deal found 1/18$865
This KAYAK deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:13 am
STL
-
SCL
1 stop18h 27m
LATAM Airlines
Tue 2/2411:10 pm
SCL
-
STL
1 stop14h 52m
LATAM Airlines
Deal found 1/20$873
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/189:55 am
STL
-
SCL
2 stops19h 55m
United Airlines
Tue 2/2410:45 pm
SCL
-
STL
2 stops18h 44m
United Airlines
Deal found 1/20$878
This LATAM Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:59 pm
STL
-
SCL
2 stops24h 36m
LATAM Airlines
Mon 3/3011:00 pm
SCL
-
STL
2 stops20h 53m
LATAM Airlines
Deal found 1/18$895
This Expedia deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:04 pm
STL
-
IPC
2 stops26h 36m
LATAM Airlines
Sat 4/113:10 pm
IPC
-
STL
2 stops40h 20m
LATAM Airlines
Deal found 1/19$3,482
This Gurufare deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/63:47 pm
STL
-
IPC
3 stops67h 33m
LATAM Airlines
Fri 3/134:30 pm
IPC
-
STL
2 stops49h 23m
LATAM Airlines
Deal found 1/19$3,545

Find flight deals from St. Louis to Chile

Keep the following information in mind while searching for St. Louis to Chile flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$828
(LATAM Airlines)

Popular in

January

Cheapest in

March

Average price

$1,647
Provider with most accurate pricing for Lambert-St Louis-Santiago Arturo Merino Benitez flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Santiago Arturo Merino Benitez flights.
Search Deals
From Lambert-St Louis to Chile
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($214 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from St. Louis to Chile that are best for you.

Fly from

St. Louis

Fly to

Chile

Route

Depart

Return

Price

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/4

6:00 am-5:35 am

2 stops20h 35m

Santiago Arturo Merino Benitez

Wed 3/11

10:10 pm-9:05 am

1 stop12h 55m

$828

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/11

4:47 pm-7:50 am

1 stop13h 03m

Santiago Arturo Merino Benitez

Mon 3/23

9:45 pm-9:21 am

1 stop13h 36m

$846

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/4

4:05 pm-12:15 pm

1 stop17h 10m

Santiago Arturo Merino Benitez

Wed 3/11

7:55 pm-3:29 pm

1 stop21h 34m

$852

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Mon 3/2

4:28 pm-8:50 am

1 stop13h 22m

Santiago Arturo Merino Benitez

Mon 3/23

9:45 pm-9:21 am

1 stop13h 36m

$858

St. LouisEaster Island

STL - IPC

STLIPC

Lambert-St Louis

Thu 4/2

12:04 pm-2:40 pm

2 stops26h 36m

Easter Island Mataveri Intl

Sat 4/11

3:10 pm-8:30 am

2 stops40h 20m

$3,482

St. LouisEaster Island

STL - IPC

STLIPC

Lambert-St Louis

Fri 3/6

3:47 pm-12:20 pm

3 stops67h 33m

Easter Island Mataveri Intl

Fri 3/13

4:30 pm-5:53 pm

2 stops49h 23m

$3,545

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Best time to book a flight from St. Louis to Chile

Have a flexible travel schedule? Discover the best time to fly to Chile from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Chile

What is the cheapest month to book a flight from St. Louis to Chile?

Currently, March is the cheapest month in which you can book a flight from St. Louis to Chile (average of $591). Flying from St. Louis to Chile in June is currently the most expensive (average of $989). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Chile

Get insights into the airlines that provide service to Chile. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chile. Reviews last updated January 20, 2026.
Peruse reviews from past customers who have flown with Delta, LATAM Airlines, and American Airlines from St. Louis to Chile to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,081 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,081 reviews
Delta
7.9
Good
8,081 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,913 reviews
Delta
7.9
Good
8,081 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,169 reviews
Delta
7.9
Good
8,081 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Chile. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Chile?

    For a flight from St. Louis to Chile, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How long is the flight from St. Louis to Chile?

    Departing from St. Louis to Chile will take you 13h 03m. There are 5137 mi between St. Louis and Chile. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from St. Louis to Chile that include hotel bookings?

    Yes. In addition to deals on St. Louis to Chile flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Chile?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Chile.

  • Can I find deals for business class flights from St. Louis to Chile?

    Yes. Cheapflights offers flight deals from St. Louis to Chile by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Chile?

    Currently, March is the cheapest month in which you can book a flight from St. Louis to Chile (average of $591). Flying from St. Louis to Chile in June is currently the most expensive (average of $989). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Chile

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Top 3 airlines flying from St. Louis to Chile

Discover the top 3 airlines that operate flights from St. Louis to Chile. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$689Average$898FlexibilityNo cancel feeOn-time71%
DeltaCheapest$755Average$1,013FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$803Average$913FlexibilityNo cancel feeOn-time81%

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