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Cheap flights from St. Louis to Santiago from $449

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Santiago departing on 4/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Santiago

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Santiago.
Delta Logo
10:45 am - 6:30 amSTL-SCL
18h 45m2 stops
Delta Logo
8:40 pm - 2:35 pmSCL-STL
18h 55m1 stop
$808Delta
Find Deal
Tue, Aug 5 - Tue, Aug 19
LATAM Airlines Logo
5:40 pm - 7:00 amSTL-SCL
12h 20m1 stop
LATAM Airlines Logo
8:40 pm - 10:38 amSCL-STL
14h 58m1 stop
$839LATAM Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
LATAM Airlines Logo
11:51 am - 8:00 amSTL-SCL
18h 09m1 stop
LATAM Airlines Logo
10:10 pm - 11:39 pmSCL-STL
27h 29m2 stops
$844LATAM Airlines
Find Deal
Thu, Sep 25 - Sat, Oct 4
LATAM Airlines Logo
11:51 am - 6:30 amSTL-SCL
16h 39m2 stops
LATAM Airlines Logo
12:25 am - 6:02 pmSCL-STL
19h 37m2 stops
$879LATAM Airlines
Find Deal
Thu, Sep 25 - Fri, Oct 3
American Airlines Logo
6:20 pm - 6:55 amSTL-SCL
11h 35m1 stop
American Airlines Logo
9:55 pm - 4:15 pmSCL-STL
19h 20m2 stops
$953American Airlines
Find Deal
Wed, May 14 - Mon, Jun 30
American Airlines Logo
6:20 pm - 6:55 amSTL-SCL
11h 35m1 stop
American Airlines Logo
9:55 pm - 11:59 pmSCL-STL
27h 04m1 stop
$960American Airlines
Find Deal
Wed, May 14 - Mon, Jun 30
Delta Logo
6:00 am - 7:00 amSTL-SCL
24h 00m1 stop
Delta Logo
12:30 am - 8:39 pmSCL-STL
21h 09m2 stops
$1,109Delta
Find Deal
Sat, May 17 - Fri, May 23
Copa Airlines Logo
8:00 am - 5:04 amSTL-SCL
20h 04m2 stops
Copa Airlines Logo
2:24 am - 9:59 amSCL-STL
32h 35m2 stops
$1,766Copa Airlines
Find Deal
Wed, May 14 - Sun, Jun 29
Copa Airlines Logo
8:15 am - 5:04 amSTL-SCL
19h 49m2 stops
Copa Airlines Logo
12:12 am - 6:33 pmSCL-STL
19h 21m2 stops
$2,396Copa Airlines
Find Deal
Tue, Aug 5 - Mon, Aug 18
Avianca Logo
9:40 am - 10:30 pmSTL-SCL
35h 50m2 stops
Avianca Logo
5:55 am - 9:58 amSCL-STL
29h 03m2 stops
$4,089Avianca
Find Deal
Fri, May 2 - Fri, May 16

LATAM Airlines flights from St. Louis to Santiago

Our best LATAM Airlines deals on St. Louis to Santiago flight tickets
LATAM Airlines
Aug 5
STL5:40 pmLambert-St Louis
12h 20m
1 stop
SCL7:00 amSantiago Arturo Merino Benitez
Aug 19
SCL8:40 pmSantiago Arturo Merino Benitez
14h 58m
1 stop
STL10:38 amLambert-St Louis
LATAM Airlines
Sep 25
STL11:51 amLambert-St Louis
18h 09m
1 stop
SCL8:00 amSantiago Arturo Merino Benitez
Oct 4
SCL10:10 pmSantiago Arturo Merino Benitez
27h 29m
2 stops
STL11:39 pmLambert-St Louis
LATAM Airlines
Sep 25
STL11:51 amLambert-St Louis
16h 39m
2 stops
SCL6:30 amSantiago Arturo Merino Benitez
Oct 3
SCL12:25 amSantiago Arturo Merino Benitez
19h 37m
2 stops
STL6:02 pmLambert-St Louis

Copa Airlines flights from St. Louis to Santiago

Our best Copa Airlines deals on St. Louis to Santiago flight tickets
Copa Airlines
May 14
STL8:00 amLambert-St Louis
20h 04m
2 stops
SCL5:04 amSantiago Arturo Merino Benitez
Jun 29
SCL2:24 amSantiago Arturo Merino Benitez
32h 35m
2 stops
STL9:59 amLambert-St Louis
Copa Airlines
Aug 5
STL8:15 amLambert-St Louis
19h 49m
2 stops
SCL5:04 amSantiago Arturo Merino Benitez
Aug 18
SCL12:12 amSantiago Arturo Merino Benitez
19h 21m
2 stops
STL6:33 pmLambert-St Louis
Copa Airlines
Apr 6
STL8:25 amLambert-St Louis
19h 39m
2 stops
SCL5:04 amSantiago Arturo Merino Benitez
Apr 7
SCL12:30 amSantiago Arturo Merino Benitez
19h 48m
2 stops
STL7:18 pmLambert-St Louis

See travel insights to Santiago from

How to get the cheapest flight ticket from St. Louis to Santiago

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 month to fly to Santiago?

In general, October is the cheapest month to fly from St. Louis to Santiago. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $772. If you don’t want to visit Santiago in October, then you should wait until May to fly from St. Louis, when ticket prices are also cheap, with an average price of $888.

What is the cheapest day to depart on your flight to Santiago?

The cheapest day to depart on your flight to Santiago is on a Wednesday when prices can be found for as low as $955. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Santiago on Saturday is $1,189.

What is the cheapest time of day to depart on your flight to Santiago?

At noon is the cheapest time of day to fly from St. Louis to Santiago when you can find flight prices for as low as $982. Flying to Santiago at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Santiago, so prices are often more expensive at around $1,074 per ticket.

How far in advance should I book a flight to Santiago?

You are more likely to see cheaper flights to Santiago from St. Louis when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Santiago for around $997 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago from St. Louis for as low as $817 on momondo.

When to book flights from St. Louis to Santiago

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Santiago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Santiago (STL to SCL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Santiago

Best Price Found

$449

Fastest flight time

11h 35m

Direct flights

None

Airports in Santiago

1 airport
The best one-way flight to Santiago from St. Louis in the past 72 hours is $449. The best round-trip flight deal from St. Louis to Santiago found on momondo in the last 72 hours is $808.
The fastest flight from St. Louis to Santiago takes 11h 35m
There are no direct flights from St. Louis to Santiago. Popular non-direct route for this connection is Lambert-St Louis Airport - Santiago Arturo Merino Benitez Airport.
There is 1 airport near Santiago: Santiago Arturo Merino Benitez (SCL)

  • How far is Lambert-St Louis to Santiago Arturo Merino Benitez by plane?

    The distance between Lambert-St Louis and Santiago Arturo Merino Benitez is about 5131.6 mi. Typically, this will take 11h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Santiago Arturo Merino Benitez Airport?

    Prices for flights from Lambert-St Louis Airport to Santiago Arturo Merino Benitez Airport are updated daily.

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

  • How old do you have to be to fly from Lambert-St Louis Airport to Santiago Arturo Merino Benitez 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 Lambert-St Louis Airport to Santiago Arturo Merino Benitez Airport.

  • What documentation or ID do you need to fly to Santiago Arturo Merino Benitez Airport?

    The required travel and health documents for your Santiago Arturo Merino Benitez 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 Santiago Arturo Merino Benitez 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 St. Louis to Santiago?


Best airlines flying from St. Louis to Santiago

Compare and see reviews for airlines that fly from St. Louis to Santiago with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $742Free CancellationRating
8.0
7,897 reviews
Search Delta flights
LATAM AirlinesPriceFrom $762Free CancellationRating
7.5
1,754 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $823Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $883Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights

Traveling to a place near Santiago?

Book flights to Santiago if you plan to visit one of these locations
Viña del Mar
Valparaíso
Santa Cruz
San Fernando
Valle Nevado
Pichilemu

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Santiago?

Finding the right flight to Santiago from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Santiago quick and easy, saving you time and money.

Can I find flights from St. Louis to Santiago with flexible booking policies on momondo?

Flights from St. Louis to Santiago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Santiago?

momondo provides multiple filters to help you find the best flight to Santiago from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Santiago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Santiago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Santiago and let you know when they change.


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