Cheap flights from St. Louis to Chile from $326
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 Chile departing on 7/8. 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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How to get the cheapest flight ticket from St. Louis to Chile
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 Chile?
In general, October is the cheapest month to fly from St. Louis to Chile. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $772. If you aren’t able to travel during the month of October, then book flights to Chile from St. Louis during July instead. Flights to Chile in July, while not as cheap as those in October, still average around $898.
What is the cheapest day to depart on your flight to Chile?
Our data shows that Wednesday is the least expensive day to fly to Chile. Tickets to fly out on this day can be as low as $955. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,189.
What is the cheapest time of day to depart on your flight to Chile?
According to our data, the cheapest time of day to fly to Chile is at noon. momondo users have found flights departing from St. Louis to Chile at noon for as low as $982. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,074 on average. Flights to Chile from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Chile?
You are more likely to see cheaper flights to Chile from St. Louis when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Chile for around $976 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chile from St. Louis for as low as $817 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Chile?
LATAM Airlines, American Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Chile
What airlines fly to Chile?
LATAM Airlines, Delta and American Airlines are the top three most popular airlines that fly to Chile from St. Louis according to our data. LATAM Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Chile. Keep in mind that there are 4 different airlines that fly to Chile on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to Chile flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chile
When did momondo last update prices for flights from Lambert-St Louis Airport to Chile?
Prices for flights from Lambert-St Louis Airport to Chile are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Chile?
As of June 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Chile.
How old do you have to be to fly from Lambert-St Louis Airport to Chile?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Chile.
What documentation or ID do you need to fly to Chile?
The travel and health documents required for your trip to Chile can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chile. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from St. Louis to Chile
Compare and see reviews for airlines that fly from St. Louis to Chile with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $742 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $762 | Free Cancellation | Rating 7.5 1,785 reviews | |||
| PriceFrom $822 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $883 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Chile?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Chile. momondo saves you time and could save you money on your trip.
Can I find flights from St. Louis to Chile with flexible booking policies on momondo?
Yes. All flights to Chile from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from St. Louis to Chile?
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 Chile from St. Louis.
I’m not ready to book a flight from St. Louis to Chile right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Chile, momondo offers a useful price alert feature which will track prices for flights to Chile from St. Louis and alert you when they change.