Cheap flights from St. Louis to Cusco from $777

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 11/9. 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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0 bags

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Cheap round-trip flights

LATAM Airlines Logo
6:00 am - 12:45 amSTL-CUZ
17h 45m2 stops
LATAM Airlines Logo
7:25 pm - 6:02 pmCUZ-STL
23h 37m2 stops
$777LATAM Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 13
LATAM Airlines Logo
1:30 pm - 9:15 amSTL-CUZ
19h 45m2 stops
LATAM Airlines Logo
6:20 pm - 12:35 pmCUZ-STL
18h 15m2 stops
$883LATAM Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 28
LATAM Airlines Logo
1:30 pm - 9:15 amSTL-CUZ
19h 45m2 stops
LATAM Airlines Logo
9:20 pm - 11:41 pmCUZ-STL
26h 21m2 stops
$906LATAM Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 25
LATAM Airlines Logo
6:52 pm - 8:05 amSTL-CUZ
13h 13m2 stops
LATAM Airlines Logo
6:20 pm - 10:26 amCUZ-STL
16h 06m2 stops
$936LATAM Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 28
Delta Logo
7:05 pm - 9:25 amSTL-CUZ
37h 20m2 stops
Delta Logo
5:00 am - 12:56 pmCUZ-STL
32h 56m2 stops
$976Delta
Find Deal
Sun, Nov 9 - Thu, Nov 13
LATAM Airlines Logo
9:00 am - 6:15 amSTL-CUZ
20h 15m2 stops
LATAM Airlines Logo
12:05 am - 11:39 pmCUZ-STL
24h 34m2 stops
$987LATAM Airlines
Find Deal
Sun, Nov 9 - Wed, Nov 12
LATAM Airlines Logo
6:52 pm - 9:15 amSTL-CUZ
14h 23m2 stops
LATAM Airlines Logo
5:55 pm - 5:47 pmCUZ-STL
47h 52m3 stops
$1,075LATAM Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 25
 Logo
9:15 am - 11:00 amSTL-CUZ
25h 45m3 stops
 Logo
8:02 am - 9:59 amCUZ-STL
25h 57m3 stops
$1,333
Find Deal
Fri, Oct 17 - Sat, Oct 25
American Airlines Logo
6:08 pm - 7:19 amSTL-CUZ
13h 11m2 stops
American Airlines Logo
4:37 pm - 12:06 pmCUZ-STL
19h 29m3 stops
$2,029American Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 28
American Airlines Logo
4:25 pm - 7:19 amSTL-CUZ
14h 54m3 stops
American Airlines Logo
5:02 pm - 12:58 pmCUZ-STL
19h 56m3 stops
$2,980American Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 28

LATAM Airlines flights from St. Louis to Cusco

Our best LATAM Airlines deals on St. Louis to Cusco flight tickets
LATAM Airlines
Nov 9
STL6:00 amLambert-St Louis
17h 45m
2 stops
CUZ12:45 amCusco Velazco Astete
Nov 13
CUZ7:25 pmCusco Velazco Astete
23h 37m
2 stops
STL6:02 pmLambert-St Louis
LATAM Airlines
Oct 16
STL1:30 pmLambert-St Louis
19h 45m
2 stops
CUZ9:15 amCusco Velazco Astete
Oct 28
CUZ6:20 pmCusco Velazco Astete
18h 15m
2 stops
STL12:35 pmLambert-St Louis
LATAM Airlines
Oct 17
STL1:30 pmLambert-St Louis
19h 45m
2 stops
CUZ9:15 amCusco Velazco Astete
Oct 25
CUZ9:20 pmCusco Velazco Astete
26h 21m
2 stops
STL11:41 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
Oct 16
STL6:08 pmLambert-St Louis
13h 11m
2 stops
CUZ7:19 amCusco Velazco Astete
Oct 28
CUZ4:37 pmCusco Velazco Astete
19h 29m
3 stops
STL12:06 pmLambert-St Louis
American Airlines
Aug 9
STL4:32 pmLambert-St Louis
14h 52m
3 stops
CUZ7:24 amCusco Velazco Astete
Aug 15
CUZ10:07 pmCusco Velazco Astete
25h 52m
2 stops
STL11:59 pmLambert-St Louis
American Airlines
Oct 16
STL4:25 pmLambert-St Louis
14h 54m
3 stops
CUZ7:19 amCusco Velazco Astete
Oct 28
CUZ5:02 pmCusco Velazco Astete
19h 56m
3 stops
STL12:58 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 August 2, 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

Sun 11/9

6:00 am-12:45 am

2 stops17h 45m

Cusco Velazco Astete

Thu 11/13

7:25 pm-6:02 pm

2 stops23h 37m

$777

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 10/16

1:30 pm-9:15 am

2 stops19h 45m

Cusco Velazco Astete

Tue 10/28

6:20 pm-12:35 pm

2 stops18h 15m

$883

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Fri 10/17

1:30 pm-9:15 am

2 stops19h 45m

Cusco Velazco Astete

Sat 10/25

9:20 pm-11:41 pm

2 stops26h 21m

$906

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 10/16

6:52 pm-8:05 am

2 stops13h 13m

Cusco Velazco Astete

Tue 10/28

6:20 pm-10:26 am

2 stops16h 06m

$936

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sun 11/9

7:05 pm-9:25 am

2 stops37h 20m

Cusco Velazco Astete

Thu 11/13

5:00 am-12:56 pm

2 stops32h 56m

$976

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sun 11/9

9:00 am-6:15 am

2 stops20h 15m

Cusco Velazco Astete

Wed 11/12

12:05 am-11:39 pm

2 stops24h 34m

$987

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Fri 10/17

6:52 pm-9:15 am

2 stops14h 23m

Cusco Velazco Astete

Sat 10/25

5:55 pm-5:47 pm

3 stops47h 52m

$1,075

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Fri 10/17

9:15 am-11:00 am

3 stops25h 45m

Cusco Velazco Astete

Sat 10/25

8:02 am-9:59 am

3 stops25h 57m

$1,333

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 10/16

6:08 pm-7:19 am

2 stops13h 11m

Cusco Velazco Astete

Tue 10/28

4:37 pm-12:06 pm

3 stops19h 29m

$2,029

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 10/16

4:25 pm-7:19 am

3 stops14h 54m

Cusco Velazco Astete

Tue 10/28

5:02 pm-12:58 pm

3 stops19h 56m

$2,980

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, August 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 $777. If you aren’t able to travel to Cusco during the month of August, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $879.

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

Best Price Found

$777

Fastest flight time

13h 11m

Direct flights

None

Airports in Cusco

1 airport
The best flight deal from St. Louis to Cusco found on momondo in the last 72 hours is $777
The fastest flight from St. Louis to Cusco takes 13h 11m
There are no direct flights from St. Louis to Cusco. Popular non-direct route for this connection is Lambert-St Louis Airport - Cusco Velazco Astete Airport.
There is 1 airport near Cusco: Cusco Velazco Astete (CUZ)

  • 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 11m 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
1,823 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
Ollantaytambo
Urubamba

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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