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Cheap flights from St. Louis to Peru from $226

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Peru departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Peru

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:43 pm - 10:35 pmSTL-LIM
29h 52m2 stops
Multiple Airlines Logo
8:00 am - 10:34 pmLIM-STL
15h 34m1 stop
$634Multiple Airlines
Find Deal
vie., ene. 9 - dom., ene. 18
Multiple Airlines Logo
5:11 pm - 4:50 amSTL-LIM
34h 39m2 stops
Multiple Airlines Logo
1:30 pm - 7:50 amLIM-STL
43h 20m3 stops
$636Multiple Airlines
Find Deal
dom., feb. 15 - mié., feb. 25
Multiple Airlines Logo
5:11 pm - 12:50 amSTL-LIM
30h 39m2 stops
Multiple Airlines Logo
8:00 am - 10:33 pmLIM-STL
15h 33m1 stop
$641Multiple Airlines
Find Deal
sáb., feb. 14 - vie., feb. 27
American Airlines Logo
5:05 am - 9:30 pmSTL-LIM
15h 25m1 stop
American Airlines Logo
10:55 pm - 5:22 pmLIM-STL
19h 27m1 stop
$643American Airlines
Find Deal
jue., ene. 1 - mié., ene. 21
Delta Logo
6:00 am - 9:20 pmSTL-LIM
14h 20m1 stop
Delta Logo
12:15 pm - 11:36 pmLIM-STL
12h 21m1 stop
$644Delta
Find Deal
lun., feb. 16 - mar., feb. 24
LATAM Airlines Logo
11:55 am - 8:15 amSTL-LIM
19h 20m2 stops
LATAM Airlines Logo
8:50 am - 11:36 pmLIM-STL
15h 46m2 stops
$647LATAM Airlines
Find Deal
lun., feb. 16 - lun., feb. 23
American Airlines Logo
7:05 am - 9:30 pmSTL-LIM
13h 25m2 stops
American Airlines Logo
12:45 am - 3:04 pmLIM-STL
15h 19m2 stops
$648American Airlines
Find Deal
jue., ene. 1 - mar., ene. 20
LATAM Airlines Logo
3:58 pm - 5:00 amSTL-LIM
13h 02m1 stop
LATAM Airlines Logo
12:15 am - 6:02 pmLIM-STL
17h 47m2 stops
$649LATAM Airlines
Find Deal
lun., abr. 6 - dom., abr. 12
American Airlines Logo
11:22 am - 4:10 amSTL-LIM
16h 48m1 stop
American Airlines Logo
11:59 pm - 9:35 pmLIM-STL
21h 36m1 stop
$655American Airlines
Find Deal
lun., abr. 6 - lun., abr. 13
Delta Logo
10:13 am - 9:20 pmSTL-LIM
10h 07m1 stop
Delta Logo
11:40 pm - 9:06 amLIM-STL
10h 26m1 stop
$664Delta
Find Deal
dom., feb. 15 - lun., feb. 23

American Airlines flights from St. Louis to Peru

Our best American Airlines deals on St. Louis to Peru flight tickets
American Airlines
Jan 1
STL5:05 amLambert-St Louis
15h 25m
1 stop
LIM9:30 pmLima J Chavez Intl
Jan 21
LIM10:55 pmLima J Chavez Intl
19h 27m
1 stop
STL5:22 pmLambert-St Louis
$643
Find similar
American Airlines
Jan 1
STL7:05 amLambert-St Louis
13h 25m
2 stops
LIM9:30 pmLima J Chavez Intl
Jan 20
LIM12:45 amLima J Chavez Intl
15h 19m
2 stops
STL3:04 pmLambert-St Louis
$648
Find similar
American Airlines
Apr 6
STL11:22 amLambert-St Louis
16h 48m
1 stop
LIM4:10 amLima J Chavez Intl
Apr 13
LIM11:59 pmLima J Chavez Intl
21h 36m
1 stop
STL9:35 pmLambert-St Louis
$655
Find similar

LATAM Airlines flights from St. Louis to Peru

Our best LATAM Airlines deals on St. Louis to Peru flight tickets
LATAM Airlines
Feb 16
STL11:55 amLambert-St Louis
19h 20m
2 stops
LIM8:15 amLima J Chavez Intl
Feb 23
LIM8:50 amLima J Chavez Intl
15h 46m
2 stops
STL11:36 pmLambert-St Louis
$647
Find similar
LATAM Airlines
Apr 6
STL3:58 pmLambert-St Louis
13h 02m
1 stop
LIM5:00 amLima J Chavez Intl
Apr 12
LIM12:15 amLima J Chavez Intl
17h 47m
2 stops
STL6:02 pmLambert-St Louis
$649
Find similar
LATAM Airlines
Jan 7
STL12:00 pmLambert-St Louis
32h 20m
1 stop
LIM9:20 pmLima J Chavez Intl
Jan 14
LIM8:00 amLima J Chavez Intl
16h 39m
2 stops
STL11:39 pmLambert-St Louis
$682
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated noviembre 25, 2025.
Use the filters below to find and compare flights from St. Louis to Peru that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

vie. 1/9

3:43 pm-10:35 pm

2 stops29h 52m

Lima J Chavez Intl

dom. 1/18

8:00 am-10:34 pm

1 stop15h 34m

$634

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

dom. 2/15

5:11 pm-4:50 am

2 stops34h 39m

Lima J Chavez Intl

mié. 2/25

1:30 pm-7:50 am

3 stops43h 20m

$636

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

sáb. 2/14

5:11 pm-12:50 am

2 stops30h 39m

Lima J Chavez Intl

vie. 2/27

8:00 am-10:33 pm

1 stop15h 33m

$641

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

jue. 1/1

5:05 am-9:30 pm

1 stop15h 25m

Lima J Chavez Intl

mié. 1/21

10:55 pm-5:22 pm

1 stop19h 27m

$643

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

lun. 2/16

6:00 am-9:20 pm

1 stop14h 20m

Lima J Chavez Intl

mar. 2/24

12:15 pm-11:36 pm

1 stop12h 21m

$644

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

lun. 2/16

11:55 am-8:15 am

2 stops19h 20m

Lima J Chavez Intl

lun. 2/23

8:50 am-11:36 pm

2 stops15h 46m

$647

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

jue. 1/1

7:05 am-9:30 pm

2 stops13h 25m

Lima J Chavez Intl

mar. 1/20

12:45 am-3:04 pm

2 stops15h 19m

$648

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

lun. 4/6

3:58 pm-5:00 am

1 stop13h 02m

Lima J Chavez Intl

dom. 4/12

12:15 am-6:02 pm

2 stops17h 47m

$649

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

lun. 4/6

11:22 am-4:10 am

1 stop16h 48m

Lima J Chavez Intl

lun. 4/13

11:59 pm-9:35 pm

1 stop21h 36m

$655

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

dom. 2/15

10:13 am-9:20 pm

1 stop10h 07m

Lima J Chavez Intl

lun. 2/23

11:40 pm-9:06 am

1 stop10h 26m

$664

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Peru from

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

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 Peru?

In general, February is the cheapest month to fly from St. Louis to Peru. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $663. If you’re not able to fly to Peru in February, then August is your next best option. Flight prices from St. Louis to Peru during August average around $735.

What is the cheapest day to depart on your flight to Peru?

The cheapest day to depart from St. Louis to Peru is on a Wednesday when prices can be found for as low as $741. On the other hand, Friday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $967.

What is the cheapest time of day to depart on your flight to Peru?

The cheapest time of day to fly to Peru is in the morning when flights can be purchased for as low as $785. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $831 on average. Flights to Peru from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Peru?

You are more likely to see cheaper flights to Peru from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Peru for around $801 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Peru from St. Louis for as low as $679 on momondo.

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

You could potentially save up to 15% on your flight if you consider stops on a St. Louis to Peru flight.

Cheap St. Louis to Peru flight deals and tips

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

Fastest flight time

10h 50m

Direct flights

None
The fastest flight from St. Louis to Peru takes 10h 50m
There are no direct flights from St. Louis to Peru. There are no popular flight routes from St. Louis to Peru.
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Peru?

    Prices for flights from Lambert-St Louis Airport to Peru are refreshed on a daily basis.

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

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

    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 Lambert-St Louis Airport to Peru.

  • What documentation or ID do you need to fly to Peru?

    The travel and health documents you'll need for your trip to Peru may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Peru. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Peru

Compare and see reviews for airlines that fly from St. Louis to Peru with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $644Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $668Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $668Free CancellationRating
7.5
1,887 reviews
Search LATAM Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Peru. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for St. Louis to Peru flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Peru.

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

Price alerts on flights to Peru from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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