$336 Find Cheap Flights from Chile to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Cheap Flights from Chile to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chile to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chile to St. Louis

Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
9:15 pm - 5:28 pmSCL-STL
22h 13m1 stop
American Airlines Logo
4:41 pm - 9:00 amSTL-SCL
13h 19m1 stop
$748American Airlines
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Mon, Oct 13 - Mon, Oct 20
American Airlines Logo
9:55 pm - 11:56 pmSCL-STL
28h 01m1 stop
American Airlines Logo
6:08 pm - 8:00 amSTL-SCL
11h 52m1 stop
$749American Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
9:15 pm - 5:28 pmSCL-STL
22h 13m1 stop
American Airlines Logo
1:43 pm - 9:00 amSTL-SCL
16h 17m2 stops
$752American Airlines
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Mon, Oct 13 - Mon, Oct 20
American Airlines Logo
9:55 pm - 11:51 amSCL-STL
15h 56m2 stops
American Airlines Logo
6:08 pm - 8:00 amSTL-SCL
11h 52m1 stop
$753American Airlines
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Mon, Oct 27 - Tue, Nov 4
Delta Logo
12:20 am - 6:02 pmSCL-STL
19h 42m2 stops
Delta Logo
1:30 pm - 6:00 amSTL-SCL
13h 30m2 stops
$755Delta
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Thu, Nov 13 - Mon, Nov 17
LATAM Airlines Logo
11:10 pm - 10:49 amSCL-STL
14h 39m1 stop
LATAM Airlines Logo
5:12 pm - 7:40 amSTL-SCL
11h 28m1 stop
$764LATAM Airlines
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Sun, Oct 12 - Mon, Oct 20
LATAM Airlines Logo
12:10 am - 9:28 pmSCL-STL
23h 18m2 stops
LATAM Airlines Logo
11:21 am - 5:45 amSTL-SCL
16h 24m2 stops
$769LATAM Airlines
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Wed, Oct 29 - Wed, Nov 5
 Logo
3:33 pm - 10:02 amSCL-STL
20h 29m3 stops
 Logo
4:05 pm - 3:35 amSTL-SCL
32h 30m2 stops
Tue, Oct 28 - Tue, Nov 4
 Logo
5:50 am - 3:29 pmSCL-STL
35h 39m3 stops
 Logo
4:05 pm - 5:50 amSTL-SCL
34h 45m3 stops
$1,012
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Tue, Oct 28 - Wed, Nov 5
Air Canada Logo
1:35 am - 3:29 pmSCL-STL
39h 54m2 stops
Air Canada Logo
4:05 pm - 12:15 pmSTL-SCL
17h 10m1 stop
$1,066Air Canada
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Everything you should know

Cheapest round-trip
$748
American Airlines
Wed 10/29Wed 11/5
SCL - STL • 1 stop
Cheapest one-way
$336
Multiple Airlines
Sun 9/28
SCL - STL • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular route to St. Louis on KAYAK is from Santiago, which takes 21h 24m.

How many direct flights to St. Louis are there each day?

There are around 352 direct flights from within Chile to St. Louis every day. Most flights depart in the morning, with 6:00 am the most common departure time and 51% of flights departing in the morning.

Good to know

Low seasonAugust
Cheapest flight$336
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Santiago to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    There are 13 miles between St. Louis city center and Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at Lambert-St Louis Airport. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Tuesday where round-trip tickets can be as cheap as $780. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,051 on average.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally at night, when round-trip flights cost $889 on average. The most expensive time of day to fly to St. Louis is generally at night, which is peak travel time and where the average cost of a ticket is $889.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,460 direct flights from within Chile to St. Louis. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airlines flying from Chile to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Chile to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7954 reviews
7.9Entertainment
7.9Comfort
8.2Boarding
8.5Crew
7.3Food
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

The delayed flight was awful and moving the departure gate twice was annoying

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The flight was on time and crew were nice, seats were tight and there was entertainment available

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Glencoe
Shrewsbury

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

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