$315 Find Cheap Flights from Peru to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 7/10. 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 St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Cheap Flights from Peru to St. Louis

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

Wed, Aug 20 - Wed, Sep 17
United Airlines Logo
12:40 am - 10:08 pmLIM-STL
21h 28m1 stop
United Airlines Logo
6:15 am - 11:00 pmSTL-LIM
16h 45m1 stop
$728United Airlines
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Tue, Oct 14 - Tue, Nov 18
American Airlines Logo
6:50 am - 11:09 pmLIM-STL
16h 19m1 stop
American Airlines Logo
5:27 am - 9:20 pmSTL-LIM
14h 53m1 stop
$771American Airlines
Find Deal
Mon, Oct 13 - Tue, Nov 18
United Airlines Logo
12:40 am - 10:49 amLIM-STL
34h 09m2 stops
United Airlines Logo
3:15 pm - 10:25 pmSTL-LIM
30h 10m2 stops
$775United Airlines
Find Deal
Tue, Oct 14 - Tue, Nov 18
American Airlines Logo
6:50 am - 11:09 pmLIM-STL
16h 19m1 stop
American Airlines Logo
2:40 pm - 4:20 amSTL-LIM
12h 40m2 stops
$776American Airlines
Find Deal
Mon, Oct 13 - Mon, Nov 17
 Logo
6:14 am - 12:10 pmLIM-STL
29h 56m3 stops
 Logo
8:44 am - 2:25 pmSTL-LIM
28h 41m2 stops
Thu, Jul 10 - Fri, Jul 18
 Logo
12:05 am - 9:40 amLIM-STL
33h 35m2 stops
 Logo
10:47 am - 9:10 pmSTL-LIM
34h 23m3 stops
Mon, Oct 13 - Tue, Nov 18
Delta Logo
12:05 am - 4:00 pmLIM-STL
15h 55m1 stop
Delta Logo
4:40 pm - 6:55 amSTL-LIM
13h 15m1 stop
$846Delta
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Mon, Oct 13 - Mon, Nov 17
Delta Logo
12:15 pm - 8:10 amLIM-STL
19h 55m1 stop
Delta Logo
6:00 am - 9:45 pmSTL-LIM
14h 45m2 stops
$855Delta
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Wed, Aug 13 - Mon, Dec 15
LATAM Airlines Logo
12:05 am - 5:54 pmLIM-STL
17h 49m2 stops
LATAM Airlines Logo
9:00 am - 9:40 pmSTL-LIM
11h 40m2 stops
$909LATAM Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 21
LATAM Airlines Logo
12:00 pm - 11:36 pmLIM-STL
11h 36m1 stop
LATAM Airlines Logo
5:23 pm - 6:25 amSTL-LIM
13h 02m2 stops
$911LATAM Airlines
Find Deal
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KAYAK's insights & trends for flights to St. Louis

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, 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 to St. Louis is August, where tickets cost $755 on average for return flights. On the other hand, the most expensive months are July and May, where the average cost of tickets from Peru is $910 and $898 respectively. For one-way flights, the best month to travel is August with an average price of $755.


Good to know

Low seasonMarch
High seasonJuly
Cheapest flight$315
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 8% increase in price.
Flight from Lima to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    The city center of St. Louis is 13 miles from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    St. Louis is served by Lambert-St Louis Airport, also commonly referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl. The airport code is STL.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Tuesday where round-trip tickets can be as cheap as $624. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $908 on average.

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

    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 to St. Louis.

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

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

    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 St. Louis with an airline and back with another airline.

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

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

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally at night, when round-trip flights cost $834 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is $906.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 1,609 direct flights from within Peru to St. Louis. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Top airlines flying from Peru to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Peru to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? 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.
8.0
DeltaOverall score based on 7946 reviews
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

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.

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.

Not sure why there are so many security checks at this airport. Consistently annoying showing passport over and over, checking carryons at gate all the while trying to make tight connection. Basically it was uncomfortable crowded cabin with meidiocre service

Plane never left the ground. Mech issues - entire trip was rerouted through united.

They didi not provide wheelchair though we had requested. We had to run around for 40 minutes and arrange it from the airport!

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.

Everything was good except the check in. Could not do it online neither on the machines in the airport. Needed special assistance from the airline desk clerk

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

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

Information on the airport you'll fly into in St. Louis

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