$727 Find Cheap Flights from Peru to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 2/25. 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, Feb 25 - Mon, Mar 23
United Airlines Logo
1:50 am - 10:27 amLIM-STL
33h 37m2 stops
United Airlines Logo
5:18 pm - 11:40 pmSTL-LIM
30h 22m2 stops
$727United Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 23
American Airlines Logo
8:00 am - 11:46 pmLIM-STL
16h 46m1 stop
American Airlines Logo
7:15 am - 3:30 amSTL-LIM
20h 15m1 stop
$736American Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 23
American Airlines Logo
10:55 pm - 3:38 pmLIM-STL
17h 43m1 stop
American Airlines Logo
2:36 pm - 3:30 amSTL-LIM
12h 54m2 stops
$740American Airlines
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Tue, Oct 7 - Sun, Oct 12
Delta Logo
12:15 am - 3:55 pmLIM-STL
15h 40m2 stops
Delta Logo
6:00 am - 9:45 pmSTL-LIM
15h 45m2 stops
$919Delta
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Wed, Oct 8 - Sun, Oct 12
American Airlines Logo
10:00 pm - 12:57 pmLIM-STL
14h 57m2 stops
American Airlines Logo
6:00 am - 8:30 pmSTL-LIM
14h 30m2 stops
$931American Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
American Airlines Logo
11:45 pm - 4:17 pmLIM-STL
16h 32m2 stops
American Airlines Logo
7:16 am - 10:25 pmSTL-LIM
15h 09m2 stops
$932American Airlines
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Thu, Oct 9 - Mon, Dec 22
Multiple Airlines Logo
8:25 pm - 7:38 pmLIM-STL
23h 13m2 stops
Multiple Airlines Logo
5:17 pm - 10:10 pmSTL-LIM
51h 53m2 stops
$974Multiple Airlines
Find Deal
Thu, Oct 9 - Mon, Dec 22
LATAM Airlines Logo
12:00 pm - 11:41 pmLIM-STL
11h 41m1 stop
LATAM Airlines Logo
5:17 pm - 10:10 pmSTL-LIM
51h 53m2 stops
$978LATAM Airlines
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Wed, Oct 8 - Mon, Dec 22
Multiple Airlines Logo
1:15 am - 10:37 amLIM-STL
33h 22m2 stops
Multiple Airlines Logo
6:00 am - 6:30 amSTL-LIM
23h 30m1 stop
$1,056Multiple Airlines
Find Deal
Wed, Oct 8 - Mon, Dec 22
LATAM Airlines Logo
12:15 am - 5:47 pmLIM-STL
17h 32m2 stops
LATAM Airlines Logo
6:00 am - 8:55 pmSTL-LIM
13h 55m2 stops
$1,174LATAM Airlines
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Everything you should know

When to travel
September
Cheapest • 14% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$727
Typical prices: $851-994
United Airlines
Wed 2/25Mon 3/23
LIM - STL • 2 stops
Cheapest one-way
Multiple Airlines
Tue 9/16
LAX - STL • multi-stop
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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 St. Louis!
Booking Insights

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 September, where tickets cost $766 on average for return flights. On the other hand, the most expensive months are August and October, where the average cost of tickets from Peru is $1,068 and $1,036 respectively. For one-way flights, the best month to travel is September with an average price of $766.

Good to know

Low seasonMarch
Cheapest flight$727
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly with an average 2% 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 2,460 direct flights from within Peru to St. Louis. The most common day for departures is Sunday, 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.

Reviews of the 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.
7.9
DeltaOverall score based on 7954 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

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.

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

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.

My entertainment did not work. I was very tired from the botched connection, and the poor sleep

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

entertainment was not good; the shoulder strap on Business class seat did not sit well across the body (more like across the neck); the food was not hot and the special meal promoted by insert in the menu was not available to us

The boarding and new bag drop-off process was confusing and causing massive delays.

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Glencoe
Shrewsbury

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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