Cheap flights from Illinois to Peru from $186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Peru departing on 2/17. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 am - 10:35 pm
ORD
-
LIM
14h 15m1 stop
Multiple Airlines Logo
11:30 pm - 5:08 pm
LIM
-
ORD
18h 38m2 stops
$484Multiple Airlines
Thu, Feb 5 - Sat, Feb 14
Spirit Airlines Logo
5:15 am - 10:35 pm
ORD
-
LIM
16h 20m1 stop
Spirit Airlines Logo
11:33 pm - 7:41 pm
LIM
-
ORD
21h 08m2 stops
$485Spirit Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
7:20 am - 10:35 pm
ORD
-
LIM
14h 15m1 stop
Multiple Airlines Logo
2:55 am - 7:50 pm
LIM
-
ORD
17h 55m2 stops
$486Multiple Airlines
Mon, Feb 2 - Fri, Feb 13
Multiple Airlines Logo
6:57 pm - 10:45 am
ORD
-
LIM
14h 48m2 stops
Multiple Airlines Logo
11:30 pm - 11:22 am
LIM
-
ORD
12h 52m1 stop
$487Multiple Airlines
Sun, Feb 8 - Mon, Feb 23
Spirit Airlines Logo
5:15 am - 10:35 pm
ORD
-
LIM
16h 20m1 stop
Spirit Airlines Logo
11:30 pm - 5:46 pm
LIM
-
ORD
19h 16m2 stops
$488Spirit Airlines
Thu, Feb 12 - Fri, Feb 20
LATAM Airlines Logo
12:48 pm - 5:00 am
MDW
-
LIM
15h 12m1 stop
LATAM Airlines Logo
12:15 pm - 10:22 pm
LIM
-
MDW
11h 07m1 stop
$533LATAM Airlines
Thu, Jan 29 - Mon, Feb 2
LATAM Airlines Logo
4:30 pm - 5:00 am
MDW
-
LIM
11h 30m1 stop
LATAM Airlines Logo
8:00 am - 10:22 pm
LIM
-
MDW
15h 22m2 stops
$537LATAM Airlines
Sat, Jan 24 - Tue, Jan 27
Delta Logo
7:10 am - 10:40 pm
STL
-
LIM
14h 30m2 stops
Delta Logo
12:15 pm - 9:05 am
LIM
-
STL
20h 50m1 stop
$649Delta
Thu, Mar 5 - Thu, Mar 12
American Airlines Logo
6:20 pm - 10:26 am
STL
-
CUZ
16h 06m2 stops
American Airlines Logo
10:25 pm - 5:40 pm
CUZ
-
STL
19h 15m2 stops
$961American Airlines
Tue, Mar 24 - Fri, Apr 3
Delta Logo
9:59 am - 12:45 am
STL
-
CUZ
13h 46m2 stops
Delta Logo
7:30 pm - 11:02 am
CUZ
-
STL
16h 32m2 stops
$1,015Delta
Mon, Feb 9 - Mon, Feb 16

American Airlines flights from Illinois to Peru

Our best American Airlines deals on Illinois to Peru flight tickets
American Airlines
Jan 18
STL5:05 amLambert-St Louis
15h 25m
1 stop
LIM9:30 pmLima J Chavez Intl
Jan 27
LIM7:00 amLima J Chavez Intl
17h 59m
1 stop
STL11:59 pmLambert-St Louis
American Airlines
Jan 6
ORD5:00 amChicago O'Hare Intl
15h 30m
1 stop
LIM9:30 pmLima J Chavez Intl
Jan 13
LIM10:55 pmLima J Chavez Intl
21h 27m
1 stop
ORD7:22 pmChicago O'Hare Intl
American Airlines
Jan 18
STL6:02 pmLambert-St Louis
10h 08m
1 stop
LIM5:10 amLima J Chavez Intl
Jan 26
LIM12:45 amLima J Chavez Intl
15h 05m
2 stops
STL2:50 pmLambert-St Louis

LATAM Airlines flights from Illinois to Peru

Our best LATAM Airlines deals on Illinois to Peru flight tickets
LATAM Airlines
Jan 29
MDW12:48 pmChicago Midway
15h 12m
1 stop
LIM5:00 amLima J Chavez Intl
Feb 2
LIM12:15 pmLima J Chavez Intl
11h 07m
1 stop
MDW10:22 pmChicago Midway
LATAM Airlines
Jan 24
MDW4:30 pmChicago Midway
11h 30m
1 stop
LIM5:00 amLima J Chavez Intl
Jan 27
LIM8:00 amLima J Chavez Intl
15h 22m
2 stops
MDW10:22 pmChicago Midway
LATAM Airlines
Feb 24
MDW6:00 amChicago Midway
14h 20m
1 stop
LIM9:20 pmLima J Chavez Intl
Mar 2
LIM11:40 pmLima J Chavez Intl
11h 14m
1 stop
MDW9:54 amChicago Midway

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 December 28, 2025.
Use the filters below to find and compare flights from Illinois to Peru that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Thu 2/5

7:20 am-10:35 pm

1 stop14h 15m

Lima J Chavez Intl

Sat 2/14

11:30 pm-5:08 pm

2 stops18h 38m

$484

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Sat 1/31

5:15 am-10:35 pm

1 stop16h 20m

Lima J Chavez Intl

Sat 2/7

11:33 pm-7:41 pm

2 stops21h 08m

$485

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Mon 2/2

7:20 am-10:35 pm

1 stop14h 15m

Lima J Chavez Intl

Fri 2/13

2:55 am-7:50 pm

2 stops17h 55m

$486

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Sun 2/8

6:57 pm-10:45 am

2 stops14h 48m

Lima J Chavez Intl

Mon 2/23

11:30 pm-11:22 am

1 stop12h 52m

$487

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Thu 2/12

5:15 am-10:35 pm

1 stop16h 20m

Lima J Chavez Intl

Fri 2/20

11:30 pm-5:46 pm

2 stops19h 16m

$488

ChicagoLima

MDW - LIM

MDWLIM

Chicago Midway

Thu 1/29

12:48 pm-5:00 am

1 stop15h 12m

Lima J Chavez Intl

Mon 2/2

12:15 pm-10:22 pm

1 stop11h 07m

$533

ChicagoLima

MDW - LIM

MDWLIM

Chicago Midway

Sat 1/24

4:30 pm-5:00 am

1 stop11h 30m

Lima J Chavez Intl

Tue 1/27

8:00 am-10:22 pm

2 stops15h 22m

$537

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Thu 3/5

7:10 am-10:40 pm

2 stops14h 30m

Lima J Chavez Intl

Thu 3/12

12:15 pm-9:05 am

1 stop20h 50m

$649

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Tue 3/24

6:20 pm-10:26 am

2 stops16h 06m

Cusco Velazco Astete

Fri 4/3

10:25 pm-5:40 pm

2 stops19h 15m

$961

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Mon 2/9

9:59 am-12:45 am

2 stops13h 46m

Cusco Velazco Astete

Mon 2/16

7:30 pm-11:02 am

2 stops16h 32m

$1,015

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Peru from

How to get the cheapest flight ticket from Illinois 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, September is the cheapest month to fly from Illinois to Peru. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $561. If you’re not able to fly to Peru in September, then October is your next best option. Flight prices from Illinois to Peru during October average around $563.

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

The cheapest time of day to fly to Peru is at noon when flights can be purchased for as low as $599. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $758 on average. Flights to Peru from Illinois in the evening 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Peru for around $606 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Peru from Illinois for as low as $483 on momondo.

Can stopping save me money on Illinois to Peru flights?

You could potentially save up to 36% on your flight if you consider stops on a Illinois to Peru flight.

Cheap Illinois to Peru flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Peru

Fastest flight time

9h 32m

Direct flights

None
The fastest flight from Illinois to Peru takes 9h 32m
There are no direct flights from Illinois to Peru. There are no popular flight routes from Illinois to Peru.
  • When did momondo last update prices for flights from Illinois to Peru?

    Prices for flights from Illinois to Peru refresh daily.

  • How many operators does momondo search for flights from Illinois to Peru?

  • How old do you have to be to fly from Illinois 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 Illinois to Peru.

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

    The required travel and health documents for your Peru 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 Peru. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Peru

Compare and see reviews for airlines that fly from Illinois to Peru with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $310Free CancellationRating
6.6
2,490 reviews
Search Avianca flights
Copa AirlinesPriceFrom $320Free CancellationRating
7.6
1,561 reviews
Search Copa Airlines flights
Spirit AirlinesPriceFrom $377Free CancellationRating
6.3
8,214 reviews
Search Spirit Airlines flights
DeltaPriceFrom $384Free CancellationRating
7.9
8,022 reviews
Search Delta flights
LATAM AirlinesPriceFrom $442Free CancellationRating
7.5
1,895 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $479Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
American AirlinesPriceFrom $511Free CancellationRating
7.2
11,073 reviews
Search American Airlines flights
United AirlinesPriceFrom $563Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
AeromexicoPriceFrom $726Free CancellationRating
7.4
1,622 reviews
Search Aeromexico flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Peru?

It is quick and easy to find Illinois to Peru flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Peru that suits you.

Can I find flights from Illinois to Peru with flexible booking policies on momondo?

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

How can momondo help me find flights from Illinois to Peru?

momondo helps you find the best flight between Illinois and Peru by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Peru from Illinois 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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Tue 1/27
Tue 2/3

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