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Cheap Flights to Illinois

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Home North America USA Cheap flights to Illinois, United States

Flights to Illinois in 2021

Popular in January High demand for flights, 11% potential price rise
Cheapest in March Best time to find cheap flights, 3% potential price drop
Average price $2,107 Average for round-trip flights in January 2021
Round-trip from $1,866 From Auckland to Chicago
One-way from $1,319 One-way flight from Auckland to Chicago
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.

Cheapest prices for Illinois flights by month

January
$1,918
February
$1,578
March
$1,218
April
$1,409
May
$1,424
June
$1,583
July
$1,452
August
$1,602
September
$1,444
October
$1,471
November
$1,529
December
$1,788
Currently, the cheapest month for flights to Illinois is March. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

When is the best time to fly to Illinois?

Average Chicago flight ticket prices and weather conditions for 2021 and 2022 by month.
AKL - CHI
Price
$1,218 - $2,155
CHI
Temperature
1 - 29 °C
CHI
Rainfall
17 - 109 mm
The best time to fly to Illinois is during January, but great deals can be found at other times. July sees the temperatures in Illinois peak to their warmest. May tends, on average, to see the most amount of rainfall.

When is the best time to book a flight to Illinois?

To ensure you get the cheapest price possible for a flight to Illinois, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Which day is cheapest to fly to Illinois?

The cheapest day to fly to Illinois is usually Tuesday. At the moment, Saturday is the most expensive.

What time of day is cheapest to fly to Illinois?

Illinois flights can be made cheaper if you choose a flight in the morning. Booking a flight in the evening will likely mean higher prices.

Find flights to Illinois

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