Cheap flights from St. Louis to Cusco from $937

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Cusco departing on 12/11. 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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American Airlines Logo
5:10 am - 6:26 amSTL-CUZ
24h 16m2 stops
American Airlines Logo
8:57 pm - 5:51 pmCUZ-STL
21h 54m2 stops
$937American Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 21
American Airlines Logo
6:20 pm - 3:41 pmSTL-CUZ
20h 21m2 stops
American Airlines Logo
9:02 pm - 4:06 pmCUZ-STL
20h 04m2 stops
$963American Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
American Airlines Logo
10:00 am - 6:26 amSTL-CUZ
19h 26m2 stops
American Airlines Logo
10:02 pm - 5:24 pmCUZ-STL
20h 22m2 stops
$1,004American Airlines
Find Deal
Wed, Jan 7 - Tue, Jan 13
LATAM Airlines Logo
1:57 pm - 3:50 pmSTL-CUZ
24h 53m2 stops
LATAM Airlines Logo
7:35 am - 11:42 pmCUZ-STL
17h 07m2 stops
$1,026LATAM Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 22
American Airlines Logo
5:10 am - 7:26 amSTL-CUZ
25h 16m2 stops
American Airlines Logo
8:57 pm - 5:51 pmCUZ-STL
21h 54m2 stops
$1,038American Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 22
LATAM Airlines Logo
11:51 am - 9:00 amSTL-CUZ
21h 09m2 stops
LATAM Airlines Logo
8:00 pm - 10:50 amCUZ-STL
14h 50m2 stops
$1,039LATAM Airlines
Find Deal
Wed, Apr 1 - Mon, Apr 6
LATAM Airlines Logo
5:00 pm - 9:00 amSTL-CUZ
16h 00m2 stops
LATAM Airlines Logo
6:55 am - 11:40 pmCUZ-STL
16h 45m2 stops
$1,045LATAM Airlines
Find Deal
Sat, Mar 28 - Sat, Apr 4
Delta Logo
5:17 pm - 10:25 amSTL-CUZ
40h 08m2 stops
Delta Logo
6:50 am - 11:44 pmCUZ-STL
17h 54m2 stops
$1,183Delta
Find Deal
Sun, Nov 9 - Thu, Nov 13
Multiple Airlines Logo
4:05 pm - 11:20 amSTL-CUZ
18h 15m2 stops
Multiple Airlines Logo
5:10 pm - 10:58 pmCUZ-STL
30h 48m3 stops
$1,289Multiple Airlines
Find Deal
Wed, Jan 7 - Tue, Jan 13
Multiple Airlines Logo
4:05 pm - 11:59 amSTL-CUZ
19h 54m2 stops
Multiple Airlines Logo
4:15 am - 3:24 pmCUZ-STL
35h 09m3 stops
$1,291Multiple Airlines
Find Deal
Sat, Mar 28 - Sat, Apr 4

LATAM Airlines flights from St. Louis to Cusco

Our best LATAM Airlines deals on St. Louis to Cusco flight tickets
LATAM Airlines
Dec 12
STL1:57 pmLambert-St Louis
24h 53m
2 stops
CUZ3:50 pmCusco Velazco Astete
Dec 22
CUZ7:35 amCusco Velazco Astete
17h 07m
2 stops
STL11:42 pmLambert-St Louis
LATAM Airlines
Apr 1
STL11:51 amLambert-St Louis
21h 09m
2 stops
CUZ9:00 amCusco Velazco Astete
Apr 6
CUZ8:00 pmCusco Velazco Astete
14h 50m
2 stops
STL10:50 amLambert-St Louis
LATAM Airlines
Mar 28
STL5:00 pmLambert-St Louis
16h 00m
2 stops
CUZ9:00 amCusco Velazco Astete
Apr 4
CUZ6:55 amCusco Velazco Astete
16h 45m
2 stops
STL11:40 pmLambert-St Louis

American Airlines flights from St. Louis to Cusco

Our best American Airlines deals on St. Louis to Cusco flight tickets
American Airlines
Dec 11
STL5:10 amLambert-St Louis
24h 16m
2 stops
CUZ6:26 amCusco Velazco Astete
Dec 21
CUZ8:57 pmCusco Velazco Astete
21h 54m
2 stops
STL5:51 pmLambert-St Louis
American Airlines
Nov 30
STL6:20 pmLambert-St Louis
20h 21m
2 stops
CUZ3:41 pmCusco Velazco Astete
Dec 7
CUZ9:02 pmCusco Velazco Astete
20h 04m
2 stops
STL4:06 pmLambert-St Louis
American Airlines
Jan 7
STL10:00 amLambert-St Louis
19h 26m
2 stops
CUZ6:26 amCusco Velazco Astete
Jan 13
CUZ10:02 pmCusco Velazco Astete
20h 22m
2 stops
STL5:24 pmLambert-St Louis

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Cusco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from St. Louis to Cusco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 12/11

5:10 am-6:26 am

2 stops24h 16m

Cusco Velazco Astete

Sun 12/21

8:57 pm-5:51 pm

2 stops21h 54m

$937

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sun 11/30

6:20 pm-3:41 pm

2 stops20h 21m

Cusco Velazco Astete

Sun 12/7

9:02 pm-4:06 pm

2 stops20h 04m

$963

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Wed 1/7

10:00 am-6:26 am

2 stops19h 26m

Cusco Velazco Astete

Tue 1/13

10:02 pm-5:24 pm

2 stops20h 22m

$1,004

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Fri 12/12

1:57 pm-3:50 pm

2 stops24h 53m

Cusco Velazco Astete

Mon 12/22

7:35 am-11:42 pm

2 stops17h 07m

$1,026

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Fri 12/12

5:10 am-7:26 am

2 stops25h 16m

Cusco Velazco Astete

Mon 12/22

8:57 pm-5:51 pm

2 stops21h 54m

$1,038

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Wed 4/1

11:51 am-9:00 am

2 stops21h 09m

Cusco Velazco Astete

Mon 4/6

8:00 pm-10:50 am

2 stops14h 50m

$1,039

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sat 3/28

5:00 pm-9:00 am

2 stops16h 00m

Cusco Velazco Astete

Sat 4/4

6:55 am-11:40 pm

2 stops16h 45m

$1,045

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sun 11/9

5:17 pm-10:25 am

2 stops40h 08m

Cusco Velazco Astete

Thu 11/13

6:50 am-11:44 pm

2 stops17h 54m

$1,183

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Wed 1/7

4:05 pm-11:20 am

2 stops18h 15m

Cusco Velazco Astete

Tue 1/13

5:10 pm-10:58 pm

3 stops30h 48m

$1,289

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sat 3/28

4:05 pm-11:59 am

2 stops19h 54m

Cusco Velazco Astete

Sat 4/4

4:15 am-3:24 pm

3 stops35h 09m

$1,291

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Cusco from

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

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 Cusco?

In general, March is the cheapest month to fly from St. Louis to Cusco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $879. If you aren’t able to travel to Cusco during the month of March, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $885.

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

The cheapest day to depart from St. Louis to Cusco is on a Monday when prices can be found for as low as $826. The most expensive day to fly to Cusco is Thursday, with ticket prices averaging around $1,185.

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

According to our data, the cheapest time of day to fly to Cusco is in the evening. momondo users have found flights departing from St. Louis to Cusco in the evening for as low as $971. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Cusco is in the morning when prices are around $1,186.

When to book flights from St. Louis to Cusco

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

Cheap St. Louis to Cusco (STL to CUZ) flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to Cusco. There are no popular flight routes from St. Louis to Cusco.
  • How far is Lambert-St Louis to Cusco Velazco Astete by plane?

    Cusco Velazco Astete is 3788.9 mi away from Lambert-St Louis. 13h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Cusco Velazco Astete Airport?

    Prices for flights from Lambert-St Louis Airport to Cusco Velazco Astete Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Cusco Velazco Astete Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Cusco Velazco Astete Airport?

    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 Cusco Velazco Astete Airport.

  • What documentation or ID do you need to fly to Cusco Velazco Astete Airport?

    The travel and health documents required for your trip to Cusco Velazco Astete Airport 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 Cusco Velazco Astete Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Cusco?

Best airlines flying from St. Louis to Cusco

Compare and see reviews for airlines that fly from St. Louis to Cusco with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $796Free CancellationRating
7.5
1,866 reviews
Search LATAM Airlines flights

Traveling to a place near Cusco?

Book flights to Cusco if you plan to visit one of these locations
Machu Picchu
Urubamba
Ollantaytambo

Why use momondo?

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

Finding the right flight to Cusco 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 Cusco quick and easy, saving you time and money.

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

Yes. All flights to Cusco 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 Cusco?

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 Cusco from St. Louis.

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

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

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1 adult
Sat 11/15
Sat 11/22

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