What is the cheapest airline that flies from Lambert-St Louis to Peru?

American Airlines, LATAM Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Peru

What airlines fly to Peru?

LATAM Airlines, Delta and American Airlines are the top three most popular airlines that fly to Peru from St. Louis according to our data. LATAM Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Peru. Keep in mind that there are 3 different airlines that fly to Peru on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Lambert-St Louis Airport to Peru is 3 as of May 2026.

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.

$354 Cheap Flights from St. Louis to Peru in 2026

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Find the cheapest flights from St. Louis to Peru

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:15 pm - 10:45 am

STL

LIM

17h 30m

2 stops

8:00 am - 3:30 pm

LIM

STL

32h 30m

1 stop

$637Air Canada

Mon, Nov 9 - Sun, Nov 22

6:59 pm - 6:00 am

STL

LIM

10h 01m

1 stop

12:00 pm - 11:39 pm

LIM

STL

12h 39m

1 stop

$708LATAM Airlines

Mon, Nov 16 - Tue, Dec 1

6:59 pm - 6:00 am

STL

LIM

10h 01m

1 stop

12:15 am - 5:06 pm

LIM

STL

17h 51m

2 stops

$739LATAM Airlines

Mon, Nov 16 - Mon, Nov 30

6:00 am - 8:20 pm

STL

LIM

13h 20m

2 stops

12:05 am - 6:01 pm

LIM

STL

18h 56m

2 stops

$765Delta

Tue, Nov 17 - Mon, Nov 30

6:15 am - 11:55 pm

STL

LIM

16h 40m

1 stop

1:50 am - 4:35 pm

LIM

STL

15h 45m

1 stop

$790United Airlines

Mon, Nov 9 - Sat, Nov 21

5:00 am - 6:35 am

STL

CUZ

25h 35m

2 stops

8:47 pm - 5:23 pm

CUZ

STL

20h 36m

2 stops

$1,084American Airlines

Thu, Sep 24 - Sun, Oct 4

11:35 am - 10:05 am

STL

CUZ

22h 30m

2 stops

10:30 pm - 10:40 pm

CUZ

STL

24h 10m

2 stops

$1,096American Airlines

Mon, Aug 17 - Mon, Aug 24

7:27 am - 6:35 am

STL

CUZ

23h 08m

3 stops

8:47 pm - 11:15 pm

CUZ

STL

26h 28m

2 stops

$1,099GOL

Thu, Sep 24 - Sun, Oct 4

6:54 am - 7:20 am

STL

CUZ

24h 26m

3 stops

10:30 pm - 10:40 pm

CUZ

STL

24h 10m

2 stops

$1,111GOL

Mon, Aug 17 - Mon, Aug 24

8:00 am - 1:00 am

STL

CUZ

17h 00m

2 stops

8:15 pm - 2:48 pm

CUZ

STL

18h 33m

2 stops

$1,164Delta

Wed, Jul 1 - Wed, Jul 8

American Airlines flights from St. Louis to Peru

Our best American Airlines deals on St. Louis to Peru flight tickets

American Airlines

Sep 20

STL6:30 amLambert-St Louis

14h 00m

2 stops

LIM8:30 pmLima J Chavez Intl

Oct 5

LIM11:59 pmLima J Chavez Intl

17h 24m

1 stop

STL5:23 pmLambert-St Louis

$795

American Airlines

Sep 20

STL5:00 amLambert-St Louis

15h 30m

1 stop

LIM8:30 pmLima J Chavez Intl

Oct 5

LIM11:59 pmLima J Chavez Intl

17h 24m

1 stop

STL5:23 pmLambert-St Louis

$800

American Airlines

Sep 20

STL7:28 amLambert-St Louis

13h 02m

2 stops

LIM8:30 pmLima J Chavez Intl

Oct 5

LIM11:59 pmLima J Chavez Intl

17h 24m

1 stop

STL5:23 pmLambert-St Louis

$805

LATAM Airlines flights from St. Louis to Peru

Our best LATAM Airlines deals on St. Louis to Peru flight tickets

LATAM Airlines

Nov 16

STL6:59 pmLambert-St Louis

10h 01m

1 stop

LIM6:00 amLima J Chavez Intl

Dec 1

LIM12:00 pmLima J Chavez Intl

12h 39m

1 stop

STL11:39 pmLambert-St Louis

$708

LATAM Airlines

Nov 16

STL6:59 pmLambert-St Louis

10h 01m

1 stop

LIM6:00 amLima J Chavez Intl

Nov 30

LIM12:15 amLima J Chavez Intl

17h 51m

2 stops

STL5:06 pmLambert-St Louis

$739

LATAM Airlines

Nov 9

STL6:00 amLambert-St Louis

13h 20m

2 stops

LIM8:20 pmLima J Chavez Intl

Nov 22

LIM11:50 amLima J Chavez Intl

23h 58m

2 stops

STL10:48 amLambert-St Louis

$768

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 11/9

4:15 pm-10:45 am

2 stops17h 30m

Lima J Chavez Intl

Sun 11/22

8:00 am-3:30 pm

1 stop32h 30m

$637

Quickest round-trip

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 11/16

6:59 pm-6:00 am

1 stop10h 01m

Lima J Chavez Intl

Tue 12/1

12:00 pm-11:39 pm

1 stop12h 39m

$708

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 11/16

6:59 pm-6:00 am

1 stop10h 01m

Lima J Chavez Intl

Mon 11/30

12:15 am-5:06 pm

2 stops17h 51m

$739

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Tue 11/17

6:00 am-8:20 pm

2 stops13h 20m

Lima J Chavez Intl

Mon 11/30

12:05 am-6:01 pm

2 stops18h 56m

$765

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 11/9

6:15 am-11:55 pm

1 stop16h 40m

Lima J Chavez Intl

Sat 11/21

1:50 am-4:35 pm

1 stop15h 45m

$790

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 9/24

5:00 am-6:35 am

2 stops25h 35m

Cusco Velazco Astete

Sun 10/4

8:47 pm-5:23 pm

2 stops20h 36m

$1,084

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Mon 8/17

11:35 am-10:05 am

2 stops22h 30m

Cusco Velazco Astete

Mon 8/24

10:30 pm-10:40 pm

2 stops24h 10m

$1,096

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Thu 9/24

7:27 am-6:35 am

3 stops23h 08m

Cusco Velazco Astete

Sun 10/4

8:47 pm-11:15 pm

2 stops26h 28m

$1,099

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Mon 8/17

6:54 am-7:20 am

3 stops24h 26m

Cusco Velazco Astete

Mon 8/24

10:30 pm-10:40 pm

2 stops24h 10m

$1,111

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Wed 7/1

8:00 am-1:00 am

2 stops17h 00m

Cusco Velazco Astete

Wed 7/8

8:15 pm-2:48 pm

2 stops18h 33m

$1,164

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $384. If you’re not able to fly to Peru in February, then January is your next best option. Flight prices from St. Louis to Peru during January average around $478.

How far in advance should I book a flight from St. Louis 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 $828 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 $671 on momondo.

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

You could potentially save up to 23% 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	14h 16m
Direct flights	None

The fastest flight from St. Louis to Peru takes 14h 16m

There are no direct flights from St. Louis to Peru. There are no popular flight routes from St. Louis to Peru.

Search flight deals

Frequently asked questions about flying from St. Louis to Peru

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?
The number of operators available for flights from Lambert-St Louis Airport to Peru is 3 as of May 2026.
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
Delta	PriceFrom $572	Free Cancellation	Rating 7.9 8,423 reviews	Search Delta flights
LATAM Airlines	PriceFrom $650	Free Cancellation	Rating 7.4 1,920 reviews	Search LATAM Airlines flights
American Airlines	PriceFrom $668	Free Cancellation	Rating 7.1 11,639 reviews	Search American 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.