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Peru

$355+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIM
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$645
(United)

One-way from

$355
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$846
Provider with most accurate pricing for Lambert-St Louis-Lima J Chavez Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Lima J Chavez Intl flights.
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From Lambert-St Louis to Peru
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One-way flight from Lambert-St Louis to Peru
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Highest demand for flights based on searches. 6% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 28, 2025.

This United deal was found by Cheapflights users on 3/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:25 amSTL - LIM
1 stop14h 00mUnited Airlines
Sun 9/1412:40 amLIM - STL
1 stop18h 18mUnited Airlines
Deal found 3/26$645
This Delta deal was found by Cheapflights users on 3/26. 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 8/269:00 amSTL - LIM
1 stop20h 00mDelta
Tue 9/911:20 pmLIM - STL
1 stop16h 38mDelta
Deal found 3/26$669
This Avianca deal was found by Cheapflights users on 3/26. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/269:39 amSTL - LIM
2 stops16h 06mMultiple Airlines
Thu 5/11:40 amLIM - STL
2 stops14h 09mMultiple Airlines
Deal found 3/26$727
This LATAM Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 9/256:00 amSTL - LIM
2 stops24h 00mLATAM Airlines
Fri 10/1012:05 amLIM - STL
2 stops17h 58mLATAM Airlines
Deal found 3/27$730
This Avianca deal was found by Cheapflights users on 3/26. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/269:39 amSTL - LIM
2 stops16h 06mAvianca
Fri 5/26:45 pmLIM - STL
2 stops15h 13mAvianca
Deal found 3/26$772
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Sat 5/106:20 pmSTL - LIM
1 stop9h 50mAmerican Airlines
Tue 5/206:30 amLIM - STL
1 stop15h 49mAmerican Airlines
Deal found 3/27$800
This LATAM Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 10/165:40 pmSTL - CUZ
2 stops18h 50mLATAM Airlines
Tue 10/288:30 amCUZ - STL
2 stops15h 09mLATAM Airlines
Deal found 3/27$1,017
This American Airlines deal was found by Cheapflights users on 3/27. 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 6/25:13 amSTL - CUZ
2 stops25h 11mAmerican Airlines
Thu 6/129:57 pmCUZ - STL
2 stops26h 02mAmerican Airlines
Deal found 3/27$1,041

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 March 28, 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

Tue 8/26

7:25 am-9:25 pm

1 stop14h 00m

Lima J Chavez Intl

Sun 9/14

12:40 am-6:58 pm

1 stop18h 18m

$645

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 8/26

9:00 am-5:00 am

1 stop20h 00m

Lima J Chavez Intl

Tue 9/9

11:20 pm-3:58 pm

1 stop16h 38m

$669

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 7/12

6:00 am-10:00 pm

2 stops16h 00m

Lima J Chavez Intl

Wed 7/23

11:40 pm-11:39 pm

2 stops23h 59m

$693

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 4/26

9:39 am-1:45 am

2 stops16h 06m

Lima J Chavez Intl

Thu 5/1

1:40 am-3:49 pm

2 stops14h 09m

$727

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 4/26

9:39 am-1:45 am

2 stops16h 06m

Lima J Chavez Intl

Fri 5/2

6:45 pm-9:58 am

2 stops15h 13m

$772

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Sat 5/10

6:20 pm-4:10 am

1 stop9h 50m

Lima J Chavez Intl

Tue 5/20

6:30 am-10:19 pm

1 stop15h 49m

$800

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Mon 6/2

5:13 am-6:24 am

2 stops25h 11m

Cusco Velazco Astete

Thu 6/12

9:57 pm-11:59 pm

2 stops26h 02m

$1,041

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 5/26

5:45 pm-5:06 am

2 stops35h 21m

$355

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 5/26

6:20 pm-4:10 am

1 stop9h 50m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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, April is the cheapest month in which you can book a flight from St. Louis to Peru (average of $499). Flying from St. Louis to Peru in December is currently the most expensive (average of $802). 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 March 28, 2025.

When flying from St. Louis to Peru, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Peru by month

Plan your trip to Peru by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Peru ranges from 0.0 - 0.0 inches per month. January is typically the wettest month, when rainfall can reach 0.0 in. January is typically the driest time to visit Peru when rainfall is around 0.0 in.

Temperature in Peru by month

Plan your trip to Peru by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Peru, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 62.6 F).

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 March 28, 2025.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,750 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Avianca
6.7
Okay
2,300 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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, April is the cheapest month in which you can book a flight from St. Louis to Peru (average of $499). Flying from St. Louis to Peru in December is currently the most expensive (average of $802). 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 4 airlines flying from St. Louis to Peru

Discover the top 4 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$633Average$804FlexibilityNo cancel feeOn-time69%
DeltaCheapest$633Average$910FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$637Average$953FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$671Average$877FlexibilityNo cancel feeOn-time71%
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