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Peru

$541+ Cheap flights from St. Louis (STL) to Peru

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIM
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
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Cheap flight deals from St. Louis to Peru

Cheapest flights from St. Louis to Peru
Explore the most affordable flight options available from St. Louis to Peru. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:47 am
STL
-
LIM
2 stops36h 48m
Multiple Airlines
Fri 3/138:00 am
LIM
-
STL
1 stop15h 19m
Multiple Airlines
Deal found 2/1$541
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:22 pm
STL
-
LIM
2 stops25h 13m
Multiple Airlines
Mon 3/98:00 am
LIM
-
STL
1 stop15h 19m
Multiple Airlines
Deal found 1/31$544
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:51 pm
STL
-
LIM
2 stops28h 44m
Multiple Airlines
Tue 3/248:00 am
LIM
-
STL
1 stop15h 19m
Multiple Airlines
Deal found 1/31$566
This LATAM Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:59 pm
STL
-
LIM
1 stop10h 01m
LATAM Airlines
Tue 3/2412:15 pm
LIM
-
STL
1 stop11h 43m
LATAM Airlines
Deal found 1/31$652
This Ovago deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/49:59 am
STL
-
LIM
1 stop18h 01m
LATAM Airlines
Thu 2/512:05 am
LIM
-
STL
2 stops24h 32m
LATAM Airlines
Deal found 1/31$658
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:00 am
STL
-
LIM
2 stops26h 05m
Delta
Tue 6/98:55 am
LIM
-
STL
2 stops23h 12m
Delta
Deal found 2/2$665
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:40 pm
STL
-
LIM
1 stop12h 20m
LATAM Airlines
Sun 11/2211:50 am
LIM
-
STL
2 stops31h 11m
LATAM Airlines
Deal found 2/1$668
This LATAM Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:00 am
STL
-
LIM
2 stops23h 00m
LATAM Airlines
Tue 12/158:50 am
LIM
-
STL
2 stops15h 49m
LATAM Airlines
Deal found 2/1$670
This Air Canada deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:15 pm
STL
-
LIM
1 stop12h 55m
Air Canada
Fri 11/208:05 am
LIM
-
STL
1 stop32h 25m
Air Canada
Deal found 2/1$678
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:15 am
STL
-
LIM
1 stop16h 40m
United Airlines
Sat 11/211:50 am
LIM
-
STL
1 stop15h 45m
United Airlines
Deal found 2/1$685
This LATAM Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:00 am
STL
-
LIM
2 stops22h 00m
LATAM Airlines
Sun 12/2011:50 am
LIM
-
STL
2 stops23h 58m
LATAM Airlines
Deal found 2/1$688
This LATAM Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:30 pm
STL
-
LIM
2 stops11h 30m
LATAM Airlines
Sat 11/2112:00 pm
LIM
-
STL
1 stop21h 12m
LATAM Airlines
Deal found 2/1$690

Find flight deals from St. Louis to Peru

Keep the following information in mind while searching for St. Louis to Peru flight deals. Data was last updated February 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$544
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$664
Provider with most accurate pricing for Lambert-St Louis-Lima J Chavez Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Lima J Chavez Intl flights.
Search Deals
From Lambert-St Louis to Peru
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Peru 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, Cheapflights users made 2,558,603 searches. Data last updated February 2, 2026.
Use the filters below to find and compare flights from St. Louis to Peru that are best for you.

Fly from

St. Louis

Fly to

Peru

Route

Depart

Return

Price

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 3/2

8:22 pm-10:35 pm

2 stops25h 13m

Lima J Chavez Intl

Mon 3/9

8:00 am-11:19 pm

1 stop15h 19m

$544

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 3/17

6:59 pm-5:00 am

1 stop10h 01m

Lima J Chavez Intl

Tue 3/24

12:15 pm-11:58 pm

1 stop11h 43m

$652

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 5/26

5:30 pm-5:00 am

1 stop11h 30m

Lima J Chavez Intl

Thu 6/4

12:00 pm-11:38 pm

1 stop11h 38m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 3/2

11:55 am-5:00 am

1 stop16h 05m

Lima J Chavez Intl

Mon 3/9

12:15 pm-11:58 pm

1 stop11h 43m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 5/26

7:05 pm-5:00 am

1 stop9h 55m

Lima J Chavez Intl

Tue 6/2

12:05 am-4:40 pm

1 stop16h 35m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 5/27

11:51 am-8:05 am

2 stops20h 14m

Lima J Chavez Intl

Thu 6/4

12:00 pm-11:38 pm

1 stop11h 38m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 5/27

6:00 am-8:20 pm

2 stops14h 20m

Lima J Chavez Intl

Tue 6/9

8:55 am-8:07 am

2 stops23h 12m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 5/26

6:00 am-8:20 pm

2 stops14h 20m

Lima J Chavez Intl

Thu 6/4

8:55 am-11:38 pm

2 stops14h 43m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 5/26

6:00 am-8:05 am

2 stops26h 05m

Lima J Chavez Intl

Tue 6/9

8:55 am-8:07 am

2 stops23h 12m

$665

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 5/27

6:00 am-8:20 pm

2 stops14h 20m

Lima J Chavez Intl

Wed 6/3

8:55 am-11:38 pm

2 stops14h 43m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 20 results
1
2

Best time to book a flight from St. Louis to Peru

Have a flexible travel schedule? Discover the best time to fly to Peru from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Peru

What is the cheapest month to book a flight from St. Louis to Peru?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Peru (average of $611). Flying from St. Louis to Peru in June is currently the most expensive (average of $725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Peru

Get insights into the airlines that provide service to Peru. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Peru. Reviews last updated February 2, 2026.
Read through reviews of airlines operating flights from St. Louis to Peru, such as Delta, LATAM Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,132 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,132 reviews
Delta
7.9
Good
8,132 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,918 reviews
Delta
7.9
Good
8,132 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,212 reviews
Delta
7.9
Good
8,132 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Peru. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Peru?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Peru. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How long is the flight from St. Louis to Peru?

    There are many flights that can get you from St. Louis to Peru in 10h 01m. Fly via LATAM Airlines, Delta, or GOL to get the fastest option. The distance from St. Louis to Peru is about 3608 mi. This flight may include one or multiple stops.

  • What are the most popular routes from St. Louis to Peru?

    The most popular route from St. Louis to Peru is Lambert-St Louis - Lima J Chavez Intl. You may also consider Lambert-St Louis - Cusco Velazco Astete or Lambert-St Louis - Tarapoto.

  • Can I find deals for flights from St. Louis to Peru that include hotel bookings?

    Yes. In addition to deals on St. Louis to Peru flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Peru?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Peru.

  • Can I find deals for business class flights from St. Louis to Peru?

    Yes. Cheapflights offers flight deals from St. Louis to Peru by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Peru?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Peru (average of $611). Flying from St. Louis to Peru in June is currently the most expensive (average of $725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Peru

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from St. Louis to Peru

Discover the top 3 airlines that operate flights from St. Louis to Peru. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$646Average$917FlexibilityNo cancel feeOn-time81%
DeltaCheapest$664Average$835FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$668Average$902FlexibilityNo cancel feeOn-time71%

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