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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

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inJanuaryHigh demand for flights, 23% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 4% potential price drop
Average price$2,003Average for round-trip flights in December 2021
Round-trip from$1,387From Sydney Kingsford Smith to Illinois
One-way from$14One-way flight from Sydney Kingsford Smith (SYD) to Illinois

Cheap flights to Illinois in December, January 2021

The best prices found for ORD flights for December, January
31 Jan - 9 Feb
$1,755pp
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
8 Jan - 23 May
$1,912pp
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Japan Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
2 Dec - 10 Dec
$1,941pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
   
2 STOPS
SYD
Sydney Kingsford Smith

Illinois 2021 flight deals

Cheap flights to Illinois found for this year
30 Nov - 7 Dec
$1,940pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
   
2 STOPS
SYD
Sydney Kingsford Smith
2 Dec - 10 Dec
$1,941pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
   
2 STOPS
SYD
Sydney Kingsford Smith
6 Dec - 14 Dec
$1,943pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
   
2 STOPS
SYD
Sydney Kingsford Smith

Last minute flights to Illinois

Late deals on return flights to Illinois, departing today and this week
6 Dec - 14 Dec
$1,943pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
   
2 STOPS
SYD
Sydney Kingsford Smith
6 Dec - 14 Dec
$2,158pp
SYD
Sydney Kingsford Smith
Multiple airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
6 Dec - 14 Dec
$2,316pp
SYD
Sydney Kingsford Smith
ANA
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
ANA
 
1 STOP
SYD
Sydney Kingsford Smith

COVID Restrictions

View COVID Travel Restrictions for Illinois

Can I fly to Illinois from USA right now?

Information is based on travel restrictions for travel to Illinois within the United States

Most visitors from USA need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.

COVID-19 testing requirements
Visitors from USA must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Illinois.

Quarantine requirements
Visitors from USA are not required to quarantine after entering Illinois.

Can I fly back to USA from Illinois?

Returning to USA from Illinois

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) test taken 72 hours before departing to USA.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering USA.

Hide COVID Travel Restrictions for Illinois

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
$1,274
February
$1,258
March
$1,249
April
$1,458
May
$1,284
June
$1,319
July
$1,285
August
$1,234
September
$1,275
October
$1,240
November
$1,153
December
$1,599

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
$1,170 - $2,353
CHI
Temperature
1 - 29 °C
CHI
Precipitation
17 - 109 mm
The best time to fly to Illinois is during July, 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 1 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?

Tuesday is currently, on average, the cheapest day to fly to Illinois. Flying on Saturday will result in higher flight prices.

What time of day is cheapest to fly to Illinois?

To get the best value, try booking a flight in the morning when visiting Illinois. Generally the prices will increase for flights in the afternoon as these tend to have higher demand.

Alternative, similarly priced destinations

See alternative destinations where airfare is generally forecast to be close to Illinois flight prices.

Cheapest flights to USA

Not set on Illinois? See the cheapest flights to Australia. Airfare prices updated on December 01, 2021.
Home North America USA Cheap flights to Illinois, United States
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