Cheap flights from Peru to St. Louis from $694

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Peru to St. Louis departing on 12/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Peru to St. Louis

Recent round-trip flight deals from Peru to St. Louis

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:37 pm - 10:56 amLIM-STL
12h 19m1 stop
Multiple Airlines Logo
4:05 pm - 10:45 amSTL-LIM
17h 40m2 stops
$694Multiple Airlines
Find Deal
Sat, Dec 20 - Wed, Feb 18
Multiple Airlines Logo
11:37 pm - 6:36 pmLIM-STL
19h 59m3 stops
Multiple Airlines Logo
4:05 pm - 10:45 amSTL-LIM
17h 40m2 stops
$772Multiple Airlines
Find Deal
Sat, Dec 20 - Wed, Feb 18
United Airlines Logo
1:50 am - 9:55 pmLIM-STL
21h 05m1 stop
United Airlines Logo
7:41 am - 11:55 pmSTL-LIM
39h 14m2 stops
$823United Airlines
Find Deal
Fri, Dec 19 - Wed, Feb 18
American Airlines Logo
12:45 am - 5:51 pmLIM-STL
18h 06m1 stop
American Airlines Logo
6:16 pm - 5:10 amSTL-LIM
9h 54m1 stop
$853American Airlines
Find Deal
Fri, Dec 19 - Wed, Feb 18
United Airlines Logo
1:50 am - 12:27 pmLIM-STL
35h 37m2 stops
United Airlines Logo
7:41 am - 11:55 pmSTL-LIM
39h 14m2 stops
$886United Airlines
Find Deal
Fri, Dec 19 - Wed, Feb 18
Multiple Airlines Logo
2:55 am - 10:56 amLIM-STL
33h 01m3 stops
Multiple Airlines Logo
4:05 pm - 10:45 amSTL-LIM
17h 40m2 stops
$946Multiple Airlines
Find Deal
Fri, Dec 19 - Wed, Feb 18
Copa Airlines Logo
2:15 am - 6:33 pmLIM-STL
16h 18m2 stops
Copa Airlines Logo
8:25 am - 12:25 pmSTL-LIM
28h 00m2 stops
$1,136Copa Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 11
American Airlines Logo
1:20 am - 3:42 pmLIM-STL
14h 22m1 stop
American Airlines Logo
5:03 pm - 3:30 amSTL-LIM
10h 27m1 stop
$1,163American Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 11
LATAM Airlines Logo
12:15 pm - 9:04 amLIM-STL
20h 49m1 stop
LATAM Airlines Logo
1:00 pm - 5:00 amSTL-LIM
16h 00m1 stop
$1,694LATAM Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
LATAM Airlines Logo
12:15 pm - 11:40 pmLIM-STL
11h 25m1 stop
LATAM Airlines Logo
11:51 am - 8:55 pmSTL-LIM
9h 04m1 stop
$1,699LATAM Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11

LATAM Airlines flights from Peru to St. Louis

Our best LATAM Airlines deals on Peru to St. Louis flight tickets
LATAM Airlines
Mar 10
LIM12:15 pmLima J Chavez Intl
20h 49m
1 stop
STL9:04 amLambert-St Louis
Mar 11
STL1:00 pmLambert-St Louis
16h 00m
1 stop
LIM5:00 amLima J Chavez Intl
LATAM Airlines
Mar 10
LIM12:15 pmLima J Chavez Intl
11h 25m
1 stop
STL11:40 pmLambert-St Louis
Mar 11
STL11:51 amLambert-St Louis
9h 04m
1 stop
LIM8:55 pmLima J Chavez Intl
LATAM Airlines
Mar 10
LIM8:25 amLima J Chavez Intl
15h 15m
2 stops
STL11:40 pmLambert-St Louis
Mar 11
STL10:00 amLambert-St Louis
11h 40m
2 stops
LIM9:40 pmLima J Chavez Intl

American Airlines flights from Peru to St. Louis

Our best American Airlines deals on Peru to St. Louis flight tickets
American Airlines
Dec 19
LIM12:45 amLima J Chavez Intl
18h 06m
1 stop
STL5:51 pmLambert-St Louis
Feb 18
STL6:16 pmLambert-St Louis
9h 54m
1 stop
LIM5:10 amLima J Chavez Intl
American Airlines
Mar 9
LIM1:20 amLima J Chavez Intl
14h 22m
1 stop
STL3:42 pmLambert-St Louis
Mar 11
STL5:03 pmLambert-St Louis
10h 27m
1 stop
LIM3:30 amLima J Chavez Intl
American Airlines
Mar 9
LIM1:20 amLima J Chavez Intl
14h 49m
2 stops
STL4:09 pmLambert-St Louis
Mar 11
STL5:03 pmLambert-St Louis
10h 27m
1 stop
LIM3:30 amLima J Chavez Intl

momondo Fare Finder

 
Customize your flight search to find flights from Peru to St. Louis 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Peru to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Sat 12/20

11:37 pm-10:56 am

1 stop12h 19m

Lambert-St Louis

Wed 2/18

4:05 pm-10:45 am

2 stops17h 40m

$694

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Sat 12/20

11:37 pm-6:36 pm

3 stops19h 59m

Lambert-St Louis

Wed 2/18

4:05 pm-10:45 am

2 stops17h 40m

$772

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Fri 12/19

1:50 am-9:55 pm

1 stop21h 05m

Lambert-St Louis

Wed 2/18

7:41 am-11:55 pm

2 stops39h 14m

$823

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Fri 12/19

12:45 am-5:51 pm

1 stop18h 06m

Lambert-St Louis

Wed 2/18

6:16 pm-5:10 am

1 stop9h 54m

$853

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Fri 12/19

1:50 am-12:27 pm

2 stops35h 37m

Lambert-St Louis

Wed 2/18

7:41 am-11:55 pm

2 stops39h 14m

$886

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Fri 12/19

2:55 am-10:56 am

3 stops33h 01m

Lambert-St Louis

Wed 2/18

4:05 pm-10:45 am

2 stops17h 40m

$946

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Mon 3/9

2:15 am-6:33 pm

2 stops16h 18m

Lambert-St Louis

Wed 3/11

8:25 am-12:25 pm

2 stops28h 00m

$1,136

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Mon 3/9

1:20 am-3:42 pm

1 stop14h 22m

Lambert-St Louis

Wed 3/11

5:03 pm-3:30 am

1 stop10h 27m

$1,163

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Tue 3/10

12:15 pm-9:04 am

1 stop20h 49m

Lambert-St Louis

Wed 3/11

1:00 pm-5:00 am

1 stop16h 00m

$1,694

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Tue 3/10

12:15 pm-11:40 pm

1 stop11h 25m

Lambert-St Louis

Wed 3/11

11:51 am-8:55 pm

1 stop9h 04m

$1,699

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Peru to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, September is the cheapest month to fly from Peru to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $766. The month of January is another great option to travel to St. Louis, with average flight prices from Peru averaging around $797.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $624. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $908. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Peru in the evening is the least expensive time of day to depart. momondo users have found prices as low as $834 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $906 per ticket.

Can stopping save me money on Peru to St. Louis flights?

You could potentially save up to 35% on your flight if you consider stops on a Peru to St. Louis flight.

Cheap Peru to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Peru to St. Louis

Direct flights

None
There are no direct flights from Peru to St. Louis. There are no popular flight routes from Peru to St. Louis.
  • When did momondo last update prices for flights from Peru to Lambert-St Louis Airport?

    Prices for flights from Peru to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from Peru to Lambert-St Louis Airport?

  • How old do you have to be to fly from Peru to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Peru to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Peru to St. Louis

Compare and see reviews for airlines that fly from Peru to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $798Free CancellationRating
7.9
8,002 reviews
Search Delta flights
LATAM AirlinesPriceFrom $807Free CancellationRating
7.5
1,873 reviews
Search LATAM Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Peru to St. Louis?

Finding the right flight to St. Louis from Peru is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Peru to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Peru with this policy.

How can momondo help me find flights from Peru to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Peru. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Peru to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Peru to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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Thu 12/4
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