STL - CUZ

$962 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 3/24. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$962
Overall average: $879
American Airlines
Tue 3/24Fri 4/3
STL - CUZ • 2 stops
Cheapest one-way
Multiple Airlines
Thu 10/30
STL - CUZ • multi-stop
Top airlines
American Airlines
Cheapest • from $962 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 20% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Cusco!
Flight Deals
Booking Insights
Flight 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

Tue, Mar 24 - Fri, Apr 3
American Airlines Logo
5:03 pm - 10:26 amSTL-CUZ
17h 23m2 stops
American Airlines Logo
5:17 pm - 3:42 pmCUZ-STL
22h 25m2 stops
$962American Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 21
LATAM Airlines Logo
6:00 am - 12:45 amSTL-CUZ
17h 45m2 stops
LATAM Airlines Logo
10:45 pm - 11:42 pmCUZ-STL
25h 57m2 stops
$1,001LATAM Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 13
LATAM Airlines Logo
5:00 pm - 11:40 amSTL-CUZ
17h 40m2 stops
LATAM Airlines Logo
5:00 am - 11:39 pmCUZ-STL
19h 39m2 stops
$1,005LATAM Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 22
LATAM Airlines Logo
5:12 pm - 6:50 pmSTL-CUZ
24h 38m2 stops
LATAM Airlines Logo
7:30 am - 11:42 pmCUZ-STL
17h 12m2 stops
$1,027LATAM Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 12
LATAM Airlines Logo
6:00 am - 6:15 amSTL-CUZ
23h 15m2 stops
LATAM Airlines Logo
12:05 am - 11:39 pmCUZ-STL
24h 34m2 stops
$1,043LATAM Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
11:51 am - 11:25 amSTL-CUZ
22h 34m2 stops
Multiple Airlines Logo
6:50 am - 3:29 pmCUZ-STL
33h 39m3 stops
$1,055Multiple Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 20
LATAM Airlines Logo
9:30 am - 9:10 amSTL-CUZ
22h 40m2 stops
LATAM Airlines Logo
12:05 am - 11:42 pmCUZ-STL
24h 37m2 stops
$1,142LATAM Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 22
LATAM Airlines Logo
6:00 am - 12:45 amSTL-CUZ
17h 45m3 stops
LATAM Airlines Logo
7:50 pm - 8:58 amCUZ-STL
14h 08m2 stops
$1,236LATAM Airlines
Find Deal
Fri, Dec 12 - Sun, Dec 21
LATAM Airlines Logo
5:12 pm - 9:10 amSTL-CUZ
14h 58m2 stops
LATAM Airlines Logo
12:05 am - 12:21 pmCUZ-STL
37h 16m2 stops
$1,239LATAM Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 13
American Airlines Logo
5:15 am - 3:41 pmSTL-CUZ
33h 26m2 stops
American Airlines Logo
7:12 am - 4:11 pmCUZ-STL
33h 59m2 stops
$1,240American Airlines
Find Deal
Booking Insights

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 March, where tickets cost $879 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is $1,528 and $1,336 respectively.

Good to know

Low seasonAugust
Cheapest flight$962
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 5% 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 $962 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?

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

  • Which is the best airline for flights from St. Louis to Cusco, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Cusco are Delta and LATAM Airlines. With an average price for the route of $1,232 and an overall rating of 7.9, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $985 and an overall rating of 7.5.

  • 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.

Reviews of the top airlines 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.
7.9
DeltaOverall score based on 7993 reviews
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

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

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