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Cheap Flights to Illinois
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Economy
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Economy
Flights to Illinois in 2021
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
| Popular in | January | High demand for flights, 22% potential price rise |
| Cheapest in | February | Best time to find cheap flights, 4% potential price drop |
| Average price | $1,382 | Average for round-trip flights in July 2021 |
| Round-trip from | $1,986 | From Sydney Kingsford Smith to Illinois |
| One-way from | $14 | One-way flight from Sydney to Illinois |
Cheap flights to Illinois in July, August 2021
The best prices found for ORD flights for July, August
2 Aug - 30 Nov
$2,712pp
SYD
Sydney Kingsford Smith
Multiple airlines
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Fiji Airways
2 STOPS
SYD
Sydney Kingsford Smith
2 Aug - 2 Dec
$2,780pp
SYD
Sydney Kingsford Smith
Multiple airlines
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
3 STOPS
SYD
Sydney Kingsford Smith
31 Jul - 2 Dec
$2,794pp
SYD
Sydney Kingsford Smith
Multiple airlines
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
3 STOPS
SYD
Sydney Kingsford Smith
Illinois 2021 flight deals
Cheap flights to Illinois found for this year
15 Nov - 16 Feb
$1,541pp
SYD
Sydney Kingsford Smith
Japan Airlines
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Japan Airlines
2 STOPS
SYD
Sydney Kingsford Smith
15 Nov - 16 Feb
$2,332pp
SYD
Sydney Kingsford Smith
United Airlines
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
1 STOP
SYD
Sydney Kingsford Smith
1 Dec - 15 Dec
$2,613pp
SYD
Sydney Kingsford Smith
Multiple airlines
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
2 STOPS
SYD
Sydney Kingsford Smith
Last minute flights to Illinois
Late deals on return flights to Illinois, departing today and this week
2 Aug - 30 Nov
$2,712pp
SYD
Sydney Kingsford Smith
Multiple airlines
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Fiji Airways
2 STOPS
SYD
Sydney Kingsford Smith
2 Aug - 2 Dec
$2,780pp
SYD
Sydney Kingsford Smith
Multiple airlines
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
3 STOPS
SYD
Sydney Kingsford Smith
3 Aug - 2 Dec
$2,794pp
SYD
Sydney Kingsford Smith
Multiple airlines
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
3 STOPS
SYD
Sydney Kingsford Smith
Cheapest prices for Illinois flights by month
The cheapest ticket to Illinois found for each month in 2021 based on historical flight searches by Cheapflights users.
January
$1,176
February
$1,215
March
$1,206
April
$1,266
May
$1,132
June
$1,285
July
$1,164
August
$1,184
September
$1,239
October
$1,217
November
$1,181
December
$1,413
May is currently the cheapest month to fly to Illinois. At this moment in time December is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.
When is the best time to fly to Illinois?
Average Chicago flight ticket prices and weather conditions for 2021 and 2022 by month.
|
SYD - CHI Price
|
$1,132 - $2,277
|
|
CHI Temperature
|
1 - 29 °C
|
|
CHI Precipitation
|
17 - 109 mm
|
Flying to Illinois in May is usually considered the best time to fly. However, you will find other deals are always available year round. 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?
Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Which day is cheapest to fly to Illinois?
The cheapest flights to Illinois are usually found when departing on a Tuesday. The departure day with the highest cost at present is Saturday.
What time of day is cheapest to fly to Illinois?
At the moment, flights in the morning are likely to offer the best value for money for your Illinois trip. A flight in the afternoon will more often than not be of higher cost.
Alternative, similarly priced destinations
See alternative destinations where airfare is generally forecast to be close to Illinois flight prices.
Find flights to Illinois
Select your preferred flight destination in Illinois from the list below.
Select your preferred route to Illinois from Australia below
Cheapest flights to USA
Not set on Illinois? See the cheapest flights to Australia. Airfare prices updated on July 27, 2021.
Melbourne to Honolulu flights
from $621 pp
Sydney to Honolulu flights
from $910 pp
Adelaide to Honolulu flights
from $1,085 pp
Sydney to Los Angeles flights
from $1,232 pp
Brisbane to Honolulu flights
from $1,248 pp
Sydney to New York flights
from $1,358 pp
Brisbane to Los Angeles flights
from $1,365 pp
Melbourne to Los Angeles flights
from $1,370 pp
Adelaide to Kahului flights
from $1,376 pp
Cairns to Honolulu flights
from $1,433 pp
Avalon to Honolulu flights
from $1,460 pp
Melbourne to Lihue flights
from $1,463 pp
Sydney to San Francisco flights
from $1,486 pp
Melbourne to San Francisco flights
from $1,520 pp
Avalon to Los Angeles flights
from $1,521 pp
Perth to Honolulu flights
from $1,537 pp
Popular flight searches
Check out other popular destinations found by fellow travellers in 2021.
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