HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Peru

$243+ Cheap flights from St. Louis (STL) to Peru

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIM
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Peru with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/296:00 amSTL - LIM
1 stop23h 30mMultiple Airlines
Wed 2/2511:30 pmLIM - STL
2 stops25h 29mMultiple Airlines
Deal found 12/16$787
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/286:00 amSTL - LIM
1 stop13h 40mMultiple Airlines
Wed 2/2511:30 pmLIM - STL
2 stops25h 29mMultiple Airlines
Deal found 12/17$811
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Sun 12/2810:57 amSTL - LIM
2 stops35h 13mMultiple Airlines
Sat 2/288:00 amLIM - STL
1 stop16h 59mMultiple Airlines
Deal found 12/16$833
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:05 amSTL - LIM
1 stop17h 20mAmerican Airlines
Wed 2/257:00 amLIM - STL
1 stop11h 27mAmerican Airlines
Deal found 12/16$840
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 pmSTL - LIM
1 stop10h 10mAmerican Airlines
Wed 2/257:00 amLIM - STL
1 stop11h 27mAmerican Airlines
Deal found 12/17$860
This Delta deal was found by Cheapflights users on 12/16. 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.
Sun 12/289:47 amSTL - LIM
2 stops18h 13mDelta
Sat 2/288:25 amLIM - STL
2 stops16h 11mDelta
Deal found 12/16$986
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Sun 12/218:05 amSTL - LIM
2 stops34h 10mMultiple Airlines
Wed 12/2411:37 pmLIM - STL
1 stop12h 19mMultiple Airlines
Deal found 12/16$1,057
This Priceline deal was found by Cheapflights users on 12/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:51 amSTL - LIM
1 stop9h 44mSpirit Airlines
Wed 12/2411:37 pmLIM - STL
1 stop12h 19mSpirit Airlines
Deal found 12/16$1,059
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:05 amSTL - LIM
1 stop17h 20mAmerican Airlines
Mon 12/297:00 amLIM - STL
1 stop11h 51mAmerican Airlines
Deal found 12/15$1,118

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$567
(Kiwi.com)

One-way from

$243
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$859
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
One-way flight from Lambert-St Louis to Peru
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Wed 1/7

5:11 pm-10:35 pm

2 stops52h 24m

Lima J Chavez Intl

Wed 2/25

8:00 am-10:27 pm

1 stop15h 27m

$577

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 2/25

10:13 am-8:00 am

2 stops20h 47m

Lima J Chavez Intl

Tue 3/10

12:05 am-11:42 pm

2 stops23h 37m

$644

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 2/25

7:10 am-9:20 pm

1 stop13h 10m

Lima J Chavez Intl

Tue 3/10

12:05 am-9:10 pm

2 stops21h 05m

$644

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 1/19

7:10 am-9:20 pm

1 stop13h 10m

Lima J Chavez Intl

Wed 1/28

11:40 pm-5:50 pm

1 stop19h 10m

$644

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Wed 3/11

10:02 am-4:50 am

2 stops18h 48m

Lima J Chavez Intl

Thu 3/19

12:15 pm-8:52 am

1 stop20h 37m

$649

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 2/14

7:10 am-9:20 pm

1 stop13h 10m

Lima J Chavez Intl

Wed 2/25

11:40 pm-5:42 pm

1 stop19h 02m

$664

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 2/14

1:33 pm-5:10 am

2 stops14h 37m

Lima J Chavez Intl

Wed 2/25

10:55 pm-12:29 pm

2 stops14h 34m

$669

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Thu 1/15

12:00 pm-5:00 am

2 stops16h 00m

Lima J Chavez Intl

Fri 1/23

12:05 am-7:27 pm

2 stops20h 22m

$669

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Fri 1/9

6:00 am-10:20 pm

1 stop15h 20m

Lima J Chavez Intl

Wed 2/25

11:30 pm-11:59 pm

2 stops25h 29m

$670

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sun 6/14

7:05 pm-8:20 pm

2 stops25h 15m

Lima J Chavez Intl

Sun 7/5

1:00 pm-11:38 pm

2 stops34h 38m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 29 results
1
2
3

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, February is the cheapest month in which you can book a flight from St. Louis to Peru (average of $538). Flying from St. Louis to Peru in June is currently the most expensive (average of $720). 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.

What is the cheapest time of day to fly from STL to PE?

Find hourly flight availability from St. Louis to Peru. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from St. Louis to Peru is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.

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 December 18, 2025.
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
8,009 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

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
1,893 reviews
Delta
7.9
Good
8,009 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

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
11,055 reviews
Delta
7.9
Good
8,009 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

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 13h 10m. Fly via LATAM Airlines, Delta, or American Airlines 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 - Arequipa Rodriguez Ballon.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Peru (average of $538). Flying from St. Louis to Peru in June is currently the most expensive (average of $720). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Peru

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Jose Maria Cordova Intl flights
St. Louis to Lima flights
Kansas City to Lima flights
St. Louis to Ministro Pistarini flights
St. Louis to Guarulhos Intl flights
Kansas City to Guarulhos Intl flights
St. Louis to Santiago flights
Kansas City to Rio de Janeiro–Galeão Intl flights
Kansas City to Bogotá flights
Kansas City to Quito flights
St. Louis to Jorge Newbery flights
Kansas City to Montevideo flights
Kansas City to Ministro Pistarini flights
St. Louis to Rio de Janeiro–Galeão Intl flights
Kansas City to Cartagena flights
Kansas City to Jorge Newbery flights
Kansas City to Santos Dumont flights
Kansas City to Cali flights
St. Louis to Santos Dumont flights
St. Louis to Santa Cruz de la Sierra flights
Kansas City to Jose Maria Cordova Intl flights
St. Louis to Cuzco flights
St. Louis to Cartagena flights
Kansas City to Guayaquil flights
Kansas City to Santiago flights
St. Louis to Quito flights
St. Louis to Bogotá flights
Springfield to Jose Maria Cordova Intl flights
Kansas City to Barranquilla flights
Springfield to Santiago flights
St. Louis to Fortaleza flights
Kansas City to Belo Horizonte flights
Kansas City to Brasilia flights
St. Louis to Baltra flights
St. Louis to Montevideo flights
Kansas City to Cordoba flights
Kansas City to Cuenca flights
Kansas City to Cuzco flights
St. Louis to Bucaramanga flights
Kansas City to Recife flights
St. Louis to Guayaquil flights
St. Louis to Arequipa flights
St. Louis to Porto Alegre flights
Joplin to Bogotá flights

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$659Average$917FlexibilityNo cancel feeOn-time81%
DeltaCheapest$667Average$834FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$668Average$884FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.