Cheap flights from Illinois to Peru from $163

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 8/22. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Illinois to Peru

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 4:30 pm
STL
-
LIM
23h 25m
2 stops
Multiple Airlines Logo
5:35 pm - 3:26 pm
LIM
-
STL
46h 51m
2 stops
$619Multiple Airlines
Mon, Nov 9 - Sun, Nov 22
Multiple Airlines Logo
2:53 am - 11:20 am
ORD
-
CUZ
32h 27m
3 stops
Multiple Airlines Logo
9:25 pm - 11:47 pm
CUZ
-
ORD
26h 22m
2 stops
$641Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
7:35 am - 3:30 am
ORD
-
LIM
19h 55m
2 stops
Multiple Airlines Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
$643Multiple Airlines
Fri, Sep 4 - Mon, Sep 14
Multiple Airlines Logo
12:12 pm - 11:44 pm
ORD
-
LIM
11h 32m
1 stop
Multiple Airlines Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
$644Multiple Airlines
Sat, Oct 3 - Thu, Oct 15
LATAM Airlines Logo
6:05 am - 9:40 pm
MDW
-
LIM
15h 35m
2 stops
LATAM Airlines Logo
1:30 pm - 10:37 am
LIM
-
MDW
21h 07m
2 stops
$648LATAM Airlines
Tue, Sep 15 - Fri, Sep 25
LATAM Airlines Logo
5:15 pm - 5:00 am
MDW
-
LIM
10h 45m
1 stop
LATAM Airlines Logo
12:15 am - 11:56 am
LIM
-
MDW
12h 41m
2 stops
$649LATAM Airlines
Wed, Nov 4 - Tue, Nov 10
Volaris Logo
1:40 am - 5:01 am
ORD
-
LIM
27h 21m
1 stop
Volaris Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
$650Volaris
Sat, Aug 15 - Tue, Aug 25
Air Canada Logo
4:05 pm - 11:20 am
STL
-
CUZ
19h 15m
2 stops
Air Canada Logo
5:10 pm - 3:26 pm
CUZ
-
STL
47h 16m
2 stops
$1,005Air Canada
Wed, Oct 28 - Sun, Nov 1
GOL Logo
6:07 pm - 7:20 am
STL
-
CUZ
37h 13m
2 stops
GOL Logo
10:30 pm - 5:49 pm
CUZ
-
STL
19h 19m
2 stops
$1,083GOL
Sun, Oct 18 - Mon, Oct 26
GOL Logo
5:10 pm - 5:35 pm
STL
-
CUZ
24h 25m
2 stops
GOL Logo
9:40 pm - 9:56 pm
CUZ
-
STL
24h 16m
2 stops
$1,090GOL
Sat, Sep 26 - Mon, Oct 5

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LATAM Airlines flights from Illinois to Peru

Our best LATAM Airlines deals on Illinois to Peru flight tickets
LATAM Airlines
Sep 15
MDW6:05 amChicago Midway
15h 35m
2 stops
LIM9:40 pmLima J Chavez Intl
Sep 25
LIM1:30 pmLima J Chavez Intl
21h 07m
2 stops
MDW10:37 amChicago Midway
$648
LATAM Airlines
Aug 19
ORD5:30 amChicago O'Hare Intl
16h 25m
1 stop
LIM9:55 pmLima J Chavez Intl
Aug 24
LIM12:05 pmLima J Chavez Intl
21h 18m
1 stop
ORD9:23 amChicago O'Hare Intl
$651
LATAM Airlines
Sep 2
ORD6:00 amChicago O'Hare Intl
15h 00m
1 stop
LIM9:00 pmLima J Chavez Intl
Sep 16
LIM12:05 pmLima J Chavez Intl
11h 54m
1 stop
ORD11:59 pmChicago O'Hare Intl
$660

Delta flights from Illinois to Peru

Our best Delta deals on Illinois to Peru flight tickets
Delta
Aug 23
MDW10:54 amChicago Midway
18h 06m
1 stop
LIM5:00 amLima J Chavez Intl
Sep 3
LIM8:15 amLima J Chavez Intl
14h 21m
2 stops
MDW10:36 pmChicago Midway
$706
Delta
Aug 16
MDW12:46 pmChicago Midway
16h 14m
1 stop
LIM5:00 amLima J Chavez Intl
Aug 24
LIM12:15 amLima J Chavez Intl
16h 00m
2 stops
MDW4:15 pmChicago Midway
$761
Delta
Aug 13
STL5:23 pmLambert-St Louis
11h 37m
1 stop
LIM5:00 amLima J Chavez Intl
Aug 20
LIM8:55 amLima J Chavez Intl
15h 03m
2 stops
STL11:58 pmLambert-St Louis
$765

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 July 2, 2026.
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

Cheapest round-trip

St. LouisLima

STL - LIM

STLLIM

Lambert-St Louis

Mon 11/9

4:05 pm-4:30 pm

2 stops23h 25m

Lima J Chavez Intl

Sun 11/22

5:35 pm-3:26 pm

2 stops46h 51m

$619

ChicagoCusco

ORD - CUZ

ORDCUZ

Chicago O'Hare Intl

Tue 8/18

2:53 am-11:20 am

3 stops32h 27m

Cusco Velazco Astete

Wed 8/26

9:25 pm-11:47 pm

2 stops26h 22m

$641

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Fri 9/4

7:35 am-3:30 am

2 stops19h 55m

Lima J Chavez Intl

Mon 9/14

6:04 am-11:47 pm

1 stop17h 43m

$643

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Sat 10/3

12:12 pm-11:44 pm

1 stop11h 32m

Lima J Chavez Intl

Thu 10/15

6:04 am-11:47 pm

1 stop17h 43m

$644

ChicagoLima

MDW - LIM

MDWLIM

Chicago Midway

Tue 9/15

6:05 am-9:40 pm

2 stops15h 35m

Lima J Chavez Intl

Fri 9/25

1:30 pm-10:37 am

2 stops21h 07m

$648
Quickest round-trip

ChicagoLima

MDW - LIM

MDWLIM

Chicago Midway

Wed 11/4

5:15 pm-5:00 am

1 stop10h 45m

Lima J Chavez Intl

Tue 11/10

12:15 am-11:56 am

2 stops12h 41m

$649

ChicagoLima

ORD - LIM

ORDLIM

Chicago O'Hare Intl

Sat 8/15

1:40 am-5:01 am

1 stop27h 21m

Lima J Chavez Intl

Tue 8/25

6:04 am-11:47 pm

1 stop17h 43m

$650

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Wed 10/28

4:05 pm-11:20 am

2 stops19h 15m

Cusco Velazco Astete

Sun 11/1

5:10 pm-3:26 pm

2 stops47h 16m

$1,005

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sun 10/18

6:07 pm-7:20 am

2 stops37h 13m

Cusco Velazco Astete

Mon 10/26

10:30 pm-5:49 pm

2 stops19h 19m

$1,083

St. LouisCusco

STL - CUZ

STLCUZ

Lambert-St Louis

Sat 9/26

5:10 pm-5:35 pm

2 stops24h 25m

Cusco Velazco Astete

Mon 10/5

9:40 pm-9:56 pm

2 stops24h 16m

$1,090

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, May 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 $92. If you’re not able to fly to Peru in May, then August is your next best option. Flight prices from Illinois to Peru during August average around $108.

How far in advance should I book a flight from Illinois 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 $648 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 $598 on momondo.

Can stopping save me money on Illinois to Peru flights?

You could potentially save up to 18% 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

10h 35m

Direct flights

None
The fastest flight from Illinois to Peru takes 10h 35m
There are no direct flights from Illinois to Peru. There are no popular flight routes from Illinois to Peru.

Frequently asked questions about flying 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
Copa AirlinesPriceFrom $339Free CancellationRating
7.6
1,567 reviews
Search Copa Airlines flights
AviancaPriceFrom $378Free CancellationRating
6.5
2,518 reviews
Search Avianca flights
DeltaPriceFrom $435Free CancellationRating
7.8
8,452 reviews
Search Delta flights
LATAM AirlinesPriceFrom $443Free CancellationRating
7.4
1,946 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $479Free CancellationRating
7.1
11,291 reviews
Search Air Canada flights
American AirlinesPriceFrom $520Free CancellationRating
7.1
11,764 reviews
Search American Airlines flights
GOLPriceFrom $522Free CancellationRating
7.3
1,252 reviews
Search GOL flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,927 reviews
Search United Airlines 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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1 adult
Sat 8/1
Sat 8/8

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