$201 Find Cheap Flights from Peru to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Peru to Illinois departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Peru to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Peru to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Peru to Illinois

Thu, Sep 17 - Tue, Sep 22
Multiple Airlines Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
Multiple Airlines Logo
10:40 pm - 5:01 am
ORD
-
LIM
30h 21m
2 stops
$521Multiple Airlines
Thu, Sep 17 - Tue, Sep 22
Multiple Airlines Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
Multiple Airlines Logo
10:40 pm - 5:01 am
ORD
-
LIM
30h 21m
2 stops
$523Multiple Airlines
Thu, Sep 3 - Sun, Sep 6
Multiple Airlines Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
Multiple Airlines Logo
12:44 am - 12:55 am
ORD
-
LIM
24h 11m
2 stops
$530Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
Volaris Logo
6:04 am - 11:47 pm
LIM
-
ORD
17h 43m
1 stop
Volaris Logo
1:40 am - 5:01 am
ORD
-
LIM
27h 21m
1 stop
$555Volaris
Tue, Sep 1 - Tue, Sep 15
Delta Logo
12:05 pm - 9:20 am
LIM
-
STL
21h 15m
1 stop
Delta Logo
2:30 pm - 5:00 am
STL
-
LIM
14h 30m
1 stop
$766Delta
Tue, Sep 1 - Tue, Sep 15
LATAM Airlines Logo
8:55 am - 11:21 pm
LIM
-
STL
14h 26m
2 stops
LATAM Airlines Logo
6:00 am - 9:35 pm
STL
-
LIM
15h 35m
2 stops
$823LATAM Airlines
Sat, Sep 19 - Sat, Sep 26
LATAM Airlines Logo
12:05 pm - 9:00 am
LIM
-
STL
20h 55m
1 stop
LATAM Airlines Logo
6:00 am - 9:55 pm
STL
-
LIM
15h 55m
1 stop
$854LATAM Airlines
Wed, Sep 16 - Wed, Sep 30
Delta Logo
12:05 pm - 10:55 am
LIM
-
STL
22h 50m
1 stop
Delta Logo
2:30 pm - 5:00 am
STL
-
LIM
14h 30m
1 stop
$890Delta
Sun, Nov 1 - Wed, Dec 30
American Airlines Logo
7:00 am - 10:32 pm
LIM
-
STL
16h 32m
1 stop
American Airlines Logo
6:00 pm - 5:10 am
STL
-
LIM
10h 10m
1 stop
$918American Airlines
Sun, Nov 1 - Wed, Dec 30
American Airlines Logo
7:00 am - 11:58 pm
LIM
-
STL
17h 58m
2 stops
American Airlines Logo
6:00 pm - 5:10 am
STL
-
LIM
10h 10m
1 stop
$923American Airlines
Booking Insights

KAYAK's insights & trends for flights to Illinois

Get data-powered insights and trends for flights to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Peru to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Peru to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Peru to Illinois is April, when tickets cost $164 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $295 and $278 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Peru to Illinois, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Find deals

Good to know

Low season

April

Cheapest flight

$201
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Lima to Chicago O'Hare Airport

FAQs for booking flights from Peru to Illinois

  • How does KAYAK find such low prices on flights from Peru to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Peru to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Peru to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Peru to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Peru to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Peru to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Peru to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Peru to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Illinois
Business Class flights to Illinois
Premium Economy Class flights to Illinois
Economy Class flights to Illinois