STL - CUZ

$807 Find Cheap Flights from St. Louis to Cusco

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Cusco departing on 9/22. 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 Cusco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cusco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cusco, as well as popular online travel agencies
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Flights Deals

Cheap Flights from St. Louis to Cusco (STL-CUZ)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Cusco 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 St. Louis to Cusco

Mon, Sep 22 - Fri, Sep 26
LATAM Airlines Logo
3:30 pm - 12:50 pmSTL-CUZ
21h 20m2 stops
LATAM Airlines Logo
7:35 am - 11:39 pmCUZ-STL
16h 04m2 stops
$807LATAM Airlines
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Fri, Sep 19 - Tue, Sep 23
LATAM Airlines Logo
6:00 am - 9:30 pmSTL-CUZ
39h 30m2 stops
LATAM Airlines Logo
6:50 am - 8:10 amCUZ-STL
25h 20m2 stops
$857LATAM Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
LATAM Airlines Logo
5:40 pm - 8:05 amSTL-CUZ
14h 25m2 stops
LATAM Airlines Logo
12:25 pm - 11:39 pmCUZ-STL
36h 14m2 stops
$864LATAM Airlines
Find Deal
Sun, Nov 2 - Sun, Nov 9
LATAM Airlines Logo
5:40 pm - 5:00 pmSTL-CUZ
22h 20m2 stops
LATAM Airlines Logo
11:55 pm - 11:39 pmCUZ-STL
24h 44m2 stops
$866LATAM Airlines
Find Deal
Sat, Nov 1 - Fri, Nov 7
LATAM Airlines Logo
5:40 pm - 5:00 pmSTL-CUZ
23h 20m2 stops
LATAM Airlines Logo
4:15 am - 9:59 pmCUZ-STL
18h 44m2 stops
$909LATAM Airlines
Find Deal
Thu, Aug 21 - Tue, Aug 26
LATAM Airlines Logo
11:02 am - 9:00 amSTL-CUZ
21h 58m2 stops
LATAM Airlines Logo
6:55 am - 9:15 amCUZ-STL
26h 20m2 stops
$921LATAM Airlines
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Sun, Nov 2 - Sun, Nov 9
Logo
7:37 pm - 11:05 amSTL-CUZ
38h 28m3 stops
Logo
4:50 pm - 3:26 pmCUZ-STL
47h 36m3 stops
$944
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Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
5:28 am - 6:24 amSTL-CUZ
24h 56m2 stops
American Airlines Logo
10:02 pm - 11:59 pmCUZ-STL
25h 57m2 stops
$987American Airlines
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Sat, Oct 25 - Sat, Nov 1
American Airlines Logo
5:34 am - 7:36 amSTL-CUZ
26h 02m2 stops
American Airlines Logo
10:20 pm - 12:01 amCUZ-STL
25h 41m2 stops
$1,054American Airlines
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Mon, Sep 22 - Fri, Sep 26
American Airlines Logo
5:28 am - 9:49 pmSTL-CUZ
16h 21m2 stops
American Airlines Logo
5:17 pm - 12:10 pmCUZ-STL
18h 53m3 stops
$1,886American Airlines
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KAYAK's insights & trends for St. Louis to Cusco flights

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

What is the cheapest month to fly from St. Louis to Cusco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Cusco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Cusco is August, where tickets cost $790 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $2,318 and $1,528 respectively.

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Good to know

Low seasonNovember
High seasonJune
Cheapest flight$807
Best time to beat the crowds but there is an average 31% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from St. Louis to Cusco

When to book flights from St. Louis to Cusco

Are your dates flexible? Find out the best times to travel from St. Louis to Cusco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Cusco

  • What is the cheapest flight from St. Louis to Cusco?

    In the last 3 days, the lowest price for a flight from St. Louis to Cusco was $807 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Cusco?

    Yes

  • Which aircraft models fly most regularly from St. Louis to Cusco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Cusco?

    oneworld is the only airline alliance operating flights between St. Louis and Cusco.

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

    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 from St. Louis to Cusco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cusco from 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 from St. Louis to Cusco?

    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 Cusco with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CUZ can sometimes prove cheaper using this method.

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

    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 Cusco from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from St. Louis to Cusco

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Cusco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Cusco? 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.
7.5
LATAM AirlinesOverall score based on 1785 reviews
7.4Comfort
8.1Crew
6.7Food
7.0Entertainment
7.6Boarding
Airline reviews

Our flight was cancelled and it took them 5 hours to reschedule and the next morning they said we still didn’t have a new ticket.

2.0 MediocreMichael, May 2025IQT - LIM
Read more LATAM Airlines reviews

Our flight was cancelled and it took them 5 hours to reschedule and the next morning they said we still didn’t have a new ticket.

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

We didn’t have any entertainment. I tried to go online without success. The airplane was extremely cold and they didn’t have blankets.

It was good, however the airplane was really cold. We received snacks and the crew was friendly.

Delta has an outstanding service. They are courteous and punctual most of the time. The flight departed a half hour late but we arrived 15 minutes early.

Change of gate in Santiago devolved into half plus hour delay and a really tight connection in Lima

Although the flight is goof and the crew is good, the way the airline charges you for every service is ridiculous.

I liked everything, this was classed as premium economy but it was much better than Lufthansas business class. Lovely staff, comfortable plane and an excellent seat arrangement. A very pleasant surprise.

No entertainment but not expected. Unless you are referring to monitor that you can use. Then Al, was fine on all flights.

Friendly staff, It was the first flight out for our plane, so had to be deiced from the frost. Only delayed a few minutes,

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

Information on your arrival and departure airports

St. Louis (STL)
Cusco (CUZ)

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