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

American Airlines is the most popular carrier operating from Peru to Lambert-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?

The number of operators available for flights from Peru to Lambert-St Louis Airport is 2 as of September 2025.

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.

$526 Cheap Flights from Peru to St. Louis in 2025/26

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Find the cheapest flights from Peru to St. Louis

Round-trip

One-way

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

12:40 am - 2:27 pmLIM-STL

37h 47m2 stops

5:28 pm - 11:00 pmSTL-LIM

53h 32m2 stops

$816United Airlines

Find Deal

Sun, Oct 12 - Mon, Oct 20

6:30 am - 11:56 pmLIM-STL

17h 26m1 stop

6:08 pm - 4:10 amSTL-LIM

10h 02m1 stop

$856American Airlines

Find Deal

Mon, Oct 13 - Mon, Oct 20

6:14 am - 9:07 amLIM-STL

50h 53m2 stops

10:22 am - 6:30 amSTL-LIM

20h 08m1 stop

$865

Find Deal

Mon, Oct 13 - Mon, Oct 20

12:40 am - 10:00 pmLIM-STL

21h 20m1 stop

5:28 pm - 11:00 pmSTL-LIM

53h 32m2 stops

$873United Airlines

Find Deal

Sun, Oct 12 - Mon, Oct 20

12:05 am - 6:02 pmLIM-STL

17h 57m2 stops

6:00 am - 9:45 pmSTL-LIM

15h 45m2 stops

$919Delta

Find Deal

Tue, Oct 7 - Sun, Oct 12

12:40 am - 10:00 pmLIM-STL

21h 20m1 stop

6:15 am - 11:00 pmSTL-LIM

16h 45m1 stop

$934United Airlines

Find Deal

Sun, Oct 12 - Mon, Oct 20

10:35 am - 7:43 pmLIM-STL

33h 08m3 stops

9:15 am - 8:55 pmSTL-LIM

35h 40m2 stops

$1,336

Find Deal

Mon, Oct 13 - Mon, Oct 20

12:15 pm - 11:40 pmLIM-STL

11h 25m1 stop

7:05 pm - 5:00 amSTL-LIM

9h 55m1 stop

$1,699LATAM Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

5:35 pm - 9:48 amLIM-STL

16h 13m2 stops

5:18 pm - 10:45 amSTL-LIM

17h 27m2 stops

$5,489Avianca

Find Deal

Tue, Mar 10 - Wed, Mar 11

5:35 pm - 9:48 amLIM-STL

16h 13m2 stops

5:18 pm - 12:50 amSTL-LIM

31h 32m2 stops

$6,157Avianca

Find Deal

Tue, Mar 10 - Wed, Mar 11

United Airlines flights from Peru to St. Louis

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

United Airlines

Oct 12

LIM12:40 amLima J Chavez Intl

37h 47m

2 stops

STL2:27 pmLambert-St Louis

Oct 20

STL5:28 pmLambert-St Louis

53h 32m

2 stops

LIM11:00 pmLima J Chavez Intl

$816

Find similar

United Airlines

Oct 12

LIM12:40 amLima J Chavez Intl

21h 20m

1 stop

STL10:00 pmLambert-St Louis

Oct 20

STL5:28 pmLambert-St Louis

53h 32m

2 stops

LIM11:00 pmLima J Chavez Intl

$873

Find similar

United Airlines

Oct 12

LIM12:40 amLima J Chavez Intl

21h 20m

1 stop

STL10:00 pmLambert-St Louis

Oct 20

STL6:15 amLambert-St Louis

16h 45m

1 stop

LIM11:00 pmLima J Chavez Intl

$934

Find similar

American Airlines flights from Peru to St. Louis

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

American Airlines

Oct 13

LIM6:30 amLima J Chavez Intl

17h 26m

1 stop

STL11:56 pmLambert-St Louis

Oct 20

STL6:08 pmLambert-St Louis

10h 02m

1 stop

LIM4:10 amLima J Chavez Intl

$856

Find similar

American Airlines

Oct 8

LIM6:30 amLima J Chavez Intl

14h 59m

2 stops

STL9:29 pmLambert-St Louis

Oct 12

STL7:16 amLambert-St Louis

13h 14m

2 stops

LIM8:30 pmLima J Chavez Intl

$939

Find similar

American Airlines

Oct 8

LIM11:45 pmLima J Chavez Intl

16h 00m

2 stops

STL3:45 pmLambert-St Louis

Oct 12

STL6:00 amLambert-St Louis

14h 30m

2 stops

LIM8:30 pmLima J Chavez Intl

$942

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Sun 10/12

12:40 am-2:27 pm

2 stops37h 47m

Lambert-St Louis

Mon 10/20

5:28 pm-11:00 pm

2 stops53h 32m

$816

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Mon 10/13

6:30 am-11:56 pm

1 stop17h 26m

Lambert-St Louis

Mon 10/20

6:08 pm-4:10 am

1 stop10h 02m

$856

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Mon 10/13

6:14 am-9:07 am

2 stops50h 53m

Lambert-St Louis

Mon 10/20

10:22 am-6:30 am

1 stop20h 08m

$865

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Sun 10/12

12:40 am-10:00 pm

1 stop21h 20m

Lambert-St Louis

Mon 10/20

5:28 pm-11:00 pm

2 stops53h 32m

$873

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Tue 10/7

12:05 am-6:02 pm

2 stops17h 57m

Lambert-St Louis

Sun 10/12

6:00 am-9:45 pm

2 stops15h 45m

$919

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Sun 10/12

12:40 am-10:00 pm

1 stop21h 20m

Lambert-St Louis

Mon 10/20

6:15 am-11:00 pm

1 stop16h 45m

$934

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Mon 10/13

10:35 am-7:43 pm

3 stops33h 08m

Lambert-St Louis

Mon 10/20

9:15 am-8:55 pm

2 stops35h 40m

$1,336

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

7:05 pm-5:00 am

1 stop9h 55m

$1,699

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Tue 3/10

5:35 pm-9:48 am

2 stops16h 13m

Lambert-St Louis

Wed 3/11

5:18 pm-10:45 am

2 stops17h 27m

$5,489

LimaSt. Louis

LIM - STL

LIMSTL

Lima J Chavez Intl

Tue 3/10

5:35 pm-9:48 am

2 stops16h 13m

Lambert-St Louis

Wed 3/11

5:18 pm-12:50 am

2 stops31h 32m

$6,157

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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

Prices

Airlines

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 June is another great option to travel to St. Louis, with average flight prices from Peru averaging around $798.

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 4% 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.

Search flight deals

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?
The number of operators available for flights from Peru to Lambert-St Louis Airport is 2 as of September 2025.
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
Delta	PriceFrom $726	Free Cancellation	Rating 7.9 7,956 reviews		Search Delta flights
LATAM Airlines	PriceFrom $807	Free Cancellation	Rating 7.5 1,847 reviews		Search LATAM Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

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.