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$473+ Cheap flights from St. Louis (STL) to Santiago (SCL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SCL
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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The best prices from Lambert-St Louis to Santiago Arturo Merino Benitez are usually found in October or May, booked 49 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Santiago

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Santiago (SCL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$824
(Delta)

One-way from

$473
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$982
Provider with most accurate pricing for Lambert-St Louis-Santiago Arturo Merino Benitez flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Santiago Arturo Merino Benitez flights.
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From Lambert-St Louis to Santiago Arturo Merino Benitez
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One-way flight from Lambert-St Louis to Santiago Arturo Merino Benitez
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High demand for flights, 3% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from St. Louis to Santiago

Cheapest flights from St. Louis to Santiago
Explore the most affordable flight options available from St. Louis to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:07 pmSTL - SCL
1 stop12h 43mAmerican Airlines
Mon 11/1711:45 pmSCL - STL
1 stop21h 32mAmerican Airlines
Deal found 1/15$804
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Tue 11/45:18 pmSTL - SCL
2 stops36h 32mUnited Airlines
Mon 11/1710:45 pmSCL - STL
2 stops19h 36mUnited Airlines
Deal found 1/15$808
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/149:00 amSTL - SCL
1 stop21h 00mDelta
Tue 7/228:40 pmSCL - STL
1 stop16h 44mDelta
Deal found 1/15$824
This Ovago deal was found by Cheapflights users on 1/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1710:10 amSTL - SCL
1 stop19h 50mLATAM Airlines
Fri 7/258:40 pmSCL - STL
1 stop13h 11mLATAM Airlines
Deal found 1/15$896
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/205:17 pmSTL - SCL
3 stops33h 53mMultiple Airlines
Sun 3/231:40 amSCL - STL
3 stops40h 42mMultiple Airlines
Deal found 1/15$1,059
This Gurufare deal was found by Cheapflights users on 1/15. 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.
Thu 1/238:15 amSTL - SCL
2 stops27h 05mAvianca
Tue 2/412:45 amSCL - STL
2 stops21h 24mAvianca
Deal found 1/15$1,369
This Iberia deal was found by Cheapflights users on 1/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/136:11 pmSTL - SCL
2 stops36h 24mIberia
Tue 7/223:00 pmSCL - STL
2 stops30h 19mIberia
Deal found 1/15$2,738
This business-class.com deal was found by Cheapflights users on 1/16. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:25 amSTL - SCL
2 stops19h 39mCopa Airlines
Thu 5/152:24 amSCL - STL
2 stops17h 09mCopa Airlines
Deal found 1/16$5,375

Find flights from St. Louis to Santiago within your budget

Customize your flight search to find flights from St. Louis to Santiago 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 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Mon 7/14

11:51 am-7:00 am

1 stop18h 09m

Santiago Arturo Merino Benitez

Mon 7/21

8:40 pm-6:03 pm

1 stop22h 23m

$824

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/19

6:30 am-7:50 am

2 stops23h 20m

Santiago Arturo Merino Benitez

Mon 3/31

9:45 pm-9:48 pm

2 stops26h 03m

$828

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/19

5:37 pm-8:35 am

1 stop12h 58m

Santiago Arturo Merino Benitez

Sun 3/30

9:55 pm-11:56 pm

1 stop28h 01m

$875

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 3/19

1:06 pm-7:00 am

2 stops15h 54m

Santiago Arturo Merino Benitez

Wed 3/26

8:40 am-9:39 am

3 stops26h 59m

$926

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Thu 3/20

5:17 pm-5:10 am

3 stops33h 53m

Santiago Arturo Merino Benitez

Sun 3/23

1:40 am-4:22 pm

3 stops40h 42m

$1,059

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Sun 7/13

6:11 pm-7:35 am

2 stops36h 24m

Santiago Arturo Merino Benitez

Tue 7/22

3:00 pm-8:19 pm

2 stops30h 19m

$2,738

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Fri 5/2

8:25 am-5:04 am

2 stops19h 39m

Santiago Arturo Merino Benitez

Thu 5/15

2:24 am-6:33 pm

2 stops17h 09m

$5,375

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 2/5

5:05 pm-5:39 am

3 stops33h 34m

$473

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Wed 2/5

8:15 am-6:02 am

2 stops18h 47m

$568

St. LouisSantiago

STL - SCL

STLSCL

Lambert-St Louis

Sat 3/15

5:33 pm-7:50 am

2 stops60h 17m

$572

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 11 results
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Compare providers for flights from St. Louis to Santiago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Santiago in January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Santiago flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Santiago flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Santiago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Santiago flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Santiago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Santiago 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.

Travel insights for flights from St. Louis to Santiago

Get recent, data-driven insights about flights from St. Louis to Santiago including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Santiago?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Santiago. Price data was last updated on January 10, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Santiago, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from St. Louis to Santiago (average of $752). Flying from St. Louis to Santiago in December is currently the most expensive (average of $1,098). 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.

What is the cheapest time of day to fly from STL to SCL?

Find hourly flight availability from St. Louis to Santiago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Santiago at noon. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.

Rainfall in Santiago by month

Plan your trip to Santiago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santiago ranges from 0.0 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Santiago when rainfall is around 0.0 in.

Temperature in Santiago by month

Plan your trip to Santiago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santiago, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Santiago

Get insights into the airlines that provide service to Santiago. 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 Santiago. Reviews last updated January 17, 2025.
Read through reviews of airlines operating flights from St. Louis to Santiago, such as United Airlines and LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.7
Good
1,658 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,849 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines flying from St. Louis to Santiago round-trip?

    Flying on Delta is currently your cheapest option to Santiago, with prices starting at $824. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $828 and $875, respectively. These flights start at 17% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Santiago one-way?

    The cheapest airline one-way is Copa Airlines, with whom users have recently found tickets for as low as $568. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from St. Louis to Santiago for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Santiago 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 Santiago?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Santiago (average of $752). Flying from St. Louis to Santiago in December is currently the most expensive (average of $1,098). 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 Santiago

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Santiago flights
Springfield to Santiago flights
St. Louis to Easter Island flights
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Top 4 airlines flying from St. Louis to Santiago

Discover the top 4 airlines that operate flights from St. Louis to Santiago. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$742Average$1,012FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$762Average$1,060FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$788Average$1,103FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$883Average$1,037FlexibilityNo cancel feeOn-time69%
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