Cheap flights from St. Louis to Cusco from $423
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 Cusco departing on 10/28. 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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Cheap round-trip flights
LATAM Airlines flights from St. Louis to Cusco
Our best LATAM Airlines deals on St. Louis to Cusco flight tickets
American Airlines flights from St. Louis to Cusco
Our best American Airlines deals on St. Louis to Cusco flight tickets
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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 $790. 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.
When to book flights from St. Louis to Cusco
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
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 55m 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?
As of June 2025, there is 1 operator available to choose from 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?
Based on momondo bookings for flights between St. Louis and Cusco, the leading airline is LATAM Airlines, making up 100% of the total bookings.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $771 | Free Cancellation | Rating 7.5 1,785 reviews |
Traveling to a place near Cusco?
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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.