How long is the flight from Australia to Illinois?

If you’re flying from a popular airport in Australia, such as Sydney Kingsford Smith or Melbourne, and flying into Illinois, then you can expect flight times to average 24h 28m and 24h 35m, respectively.

$622 Cheap Flights to Illinois in 2026/27

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Recent flights found to popular cities in Illinois

Find flights to these popular cities in Illinois from your nearest airport.

Flights to Chicago

Search all flight deals to Chicago

American Airlines

23 Nov

SYD

23h 49m

1 stop

ORD

30 Nov

ORD

21h 15m

1 stop

SYD

$1,058

American Airlines

5 Nov

SYD

23h 49m

1 stop

ORD

9 Nov

ORD

22h 45m

1 stop

SYD

$1,061

American Airlines

5 Nov

SYD

23h 49m

1 stop

ORD

9 Nov

ORD

29h 28m

1 stop

SYD

$1,063

Delta

23 Nov

SYD

19h 57m

1 stop

ORD

30 Nov

ORD

24h 58m

1 stop

SYD

$1,064

Delta

29 Oct

SYD

24h 10m

1 stop

ORD

13 Nov

ORD

24h 58m

1 stop

SYD

$1,133

Qantas Airways

8 Dec

SYD

31h 55m

2 stops

ORD

12 Jan

ORD

24h 46m

2 stops

SYD

$1,174

Delta

31 Oct

SYD

30h 17m

2 stops

ORD

28 Nov

ORD

21h 07m

1 stop

SYD

$1,203

Air Canada

25 Nov

BNE

37h 15m

2 stops

ORD

2 Dec

ORD

25h 15m

1 stop

BNE

$1,262

Air Canada

25 Nov

BNE

37h 15m

2 stops

ORD

2 Dec

ORD

26h 50m

2 stops

BNE

$1,265

Air Canada

25 Nov

BNE

19h 52m

1 stop

ORD

2 Dec

ORD

25h 15m

1 stop

BNE

$1,289

Air Canada

29 Oct

BNE

37h 15m

2 stops

ORD

3 Nov

ORD

25h 15m

1 stop

BNE

$1,369

Air Canada

29 Oct

BNE

25h 07m

2 stops

ORD

3 Nov

ORD

27h 55m

2 stops

BNE

$1,377

Flights to Moline

Search all flight deals to Moline

United Airlines

6 Nov

MEL

26h 42m

2 stops

MLI

13 Nov

MLI

35h 30m

2 stops

MEL

$1,653

Delta

26 Nov

MEL

47h 23m

2 stops

MLI

3 Dec

MLI

27h 52m

2 stops

MEL

$2,015

Qantas Airways

6 Nov

MEL

29h 37m

2 stops

MLI

13 Nov

MLI

42h 47m

1 stop

MEL

$2,076

Multiple Airlines

6 Nov

MEL

43h 19m

2 stops

MLI

13 Nov

MLI

46h 30m

3 stops

MEL

$2,540

Multiple Airlines

6 Nov

MEL

38h 38m

3 stops

MLI

13 Nov

MLI

41h 10m

3 stops

MEL

$2,583

Multiple Airlines

26 Nov

MEL

25h 29m

3 stops

MLI

3 Dec

MLI

28h 58m

2 stops

MEL

$3,030

Multiple Airlines

26 Nov

MEL

25h 29m

3 stops

MLI

3 Dec

MLI

29h 33m

3 stops

MEL

$3,070

Multiple Airlines

26 Nov

MEL

37h 33m

2 stops

MLI

3 Dec

MLI

24h 28m

1 stop

MEL

$3,548

Find the cheapest flights from Australia to Illinois

Return

One-way

Last minute

Recent return flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

11:10 - 17:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 49m1 stop Los Angeles

18:45 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles

$1,058American Airlines

Mon, 23 Nov - Mon, 30 Nov

11:10 - 17:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 49m1 stop Los Angeles

17:15 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 45m1 stop Los Angeles

$1,061American Airlines

Thu, 5 Nov - Mon, 9 Nov

10:40 - 13:37SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

19h 57m1 stop Los Angeles

14:03 - 08:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 27m2 stops Salt Lake City Los Angeles

$1,064Delta

Mon, 23 Nov - Mon, 30 Nov

10:40 - 13:37SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

19h 57m1 stop Los Angeles

14:32 - 08:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 58m1 stop Los Angeles

$1,064Delta

Mon, 23 Nov - Mon, 30 Nov

07:20 - 22:15SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

31h 55m2 stops Brisbane Dallas/Fort Worth

17:59 - 11:45ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 46m2 stops Dallas/Fort Worth Brisbane

$1,174Qantas Airways

Tue, 8 Dec - Tue, 12 Jan

10:45 - 08:00BNE Brisbane-ORD Chicago O'Hare Intl

37h 15m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

15:30 - 08:45ORD Chicago O'Hare Intl-BNE Brisbane

25h 15m1 stop Vancouver Intl

$1,262Air Canada

Wed, 25 Nov - Wed, 2 Dec

10:45 - 08:00BNE Brisbane-ORD Chicago O'Hare Intl

37h 15m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

13:55 - 08:45ORD Chicago O'Hare Intl-BNE Brisbane

26h 50m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,265Air Canada

Wed, 25 Nov - Wed, 2 Dec

11:30 - 21:12MEL Melbourne-MLI Moline Quad-City

26h 42m2 stops Los Angeles Denver Intl

05:00 - 09:30MLI Moline Quad-City-MEL Melbourne

35h 30m2 stops Chicago O'Hare Intl Los Angeles

$1,653United Airlines

Fri, 6 Nov - Fri, 13 Nov

08:40 - 12:30MEL Melbourne-ORD Chicago O'Hare Intl

44h 50m1 stop Hong Kong Intl

14:10 - 23:05ORD Chicago O'Hare Intl-MEL Melbourne

39h 55m1 stop Hong Kong Intl

$1,748Cathay Pacific

Tue, 3 Nov - Tue, 10 Nov

11:10 - 18:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 50m1 stop Los Angeles

17:59 - 11:45ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 46m2 stops Dallas/Fort Worth Brisbane

$1,833Qantas Airways

Tue, 8 Dec - Tue, 12 Jan

Recent last minute flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

10:10 - 18:38SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 28m1 stop Los Angeles

13:50 - 08:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 15m1 stop Los Angeles

$1,063American Airlines

Thu, 15 Oct - Wed, 21 Oct

10:10 - 15:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

21h 49m1 stop Los Angeles

18:55 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 05m1 stop Los Angeles

$1,070American Airlines

Thu, 15 Oct - Wed, 28 Oct

10:10 - 17:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 49m2 stops Los Angeles Albuquerque

13:50 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 10m1 stop Los Angeles

$1,077American Airlines

Thu, 15 Oct - Wed, 28 Oct

15:05 - 13:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

38h 50m1 stop Hong Kong Intl

15:10 - 20:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

37h 40m1 stop Hong Kong Intl

$1,933Cathay Pacific

Wed, 14 Oct - Thu, 29 Oct

18:50 - 06:34SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 44m1 stop Los Angeles

10:26 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 59m2 stops Atlanta Hartsfield-Jackson Los Angeles

$2,081Multiple Airlines

Fri, 16 Oct - Fri, 23 Oct

20:50 - 15:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 05m1 stop Abu Dhabi Zayed Intl

08:30 - 07:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 00m2 stops Dallas/Fort Worth Ontario

$2,137Multiple Airlines

Thu, 15 Oct - Wed, 21 Oct

06:00 - 13:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

47h 55m2 stops Brisbane Hong Kong Intl

15:10 - 20:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

37h 40m1 stop Hong Kong Intl

$2,185Cathay Pacific

Wed, 14 Oct - Thu, 29 Oct

20:50 - 15:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 05m1 stop Abu Dhabi Zayed Intl

06:30 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 30m3 stops Denver Intl Los Angeles Manila Ninoy Aquino Intl

$2,269Multiple Airlines

Thu, 15 Oct - Wed, 21 Oct

21:35 - 14:43SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 08m2 stops Singapore Changi Vancouver Intl

12:45 - 19:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

38h 40m2 stops Istanbul Singapore Changi

$2,313Multiple Airlines

Wed, 14 Oct - Thu, 29 Oct

11:55 - 21:31SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 36m2 stops Auckland Intl Los Angeles

15:47 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 48m2 stops Los Angeles Auckland Intl

$2,495Air New Zealand

Thu, 15 Oct - Wed, 28 Oct

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 23/11

11:10-17:59

1 stop23h 49m

Chicago O'Hare Intl

Mon 30/11

18:45-09:00

1 stop21h 15m

$1,058

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Thu 5/11

11:10-17:59

1 stop23h 49m

Chicago O'Hare Intl

Mon 9/11

17:15-09:00

1 stop22h 45m

$1,061

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 23/11

10:40-13:37

1 stop19h 57m

Chicago O'Hare Intl

Mon 30/11

14:03-08:30

2 stops25h 27m

$1,064

Fastest return journey

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 23/11

10:40-13:37

1 stop19h 57m

Chicago O'Hare Intl

Mon 30/11

14:32-08:30

1 stop24h 58m

$1,064

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 8/12

07:20-22:15

2 stops31h 55m

Chicago O'Hare Intl

Tue 12/1

17:59-11:45

2 stops24h 46m

$1,174

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Wed 25/11

10:45-08:00

2 stops37h 15m

Chicago O'Hare Intl

Wed 2/12

15:30-08:45

1 stop25h 15m

$1,262

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Wed 25/11

10:45-08:00

2 stops37h 15m

Chicago O'Hare Intl

Wed 2/12

13:55-08:45

2 stops26h 50m

$1,265

MelbourneMoline

MEL Melbourne - MLI Moline Quad-City

MELMLI

Melbourne

Fri 6/11

11:30-21:12

2 stops26h 42m

Moline Quad-City

Fri 13/11

05:00-09:30

2 stops35h 30m

$1,653

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Tue 3/11

08:40-12:30

1 stop44h 50m

Chicago O'Hare Intl

Tue 10/11

14:10-23:05

1 stop39h 55m

$1,748

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 8/12

11:10-18:00

1 stop23h 50m

Chicago O'Hare Intl

Tue 12/1

17:59-11:45

2 stops24h 46m

$1,833

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Illinois flights insights and trends

Explore insights for your Illinois flight to craft the best travel plan

Airlines

Other information

Which airlines fly to Illinois?

Qantas Airways, United Airlines and Air New Zealand are the top three most popular airlines that fly to Illinois from Australia according to our data. Qantas Airways is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 8 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheapest flights to cities in Illinois

Click on the cities below to find out when it's cheapest to fly to Illinois from Australia

Chicago

Find flights to Chicago

Cheap Illinois flight deals and tips

Summary info about Illinois flight prices, duration and airlines

Best One-Way Price	$706
Best Round-Trip Price	$1,058
Fastest flight time	22h 05m

The best one-way flight price to Illinois from Australia in the last 5 days is $706 (Sydney Kingsford Smith to Chicago O'Hare Intl).

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The best return flight price to Illinois from Australia in the last 5 days is $1,058 (Sydney Kingsford Smith to Chicago O'Hare Intl).

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The fastest flight to Illinois from Australia takes 22h 05m (Sydney Kingsford Smith to Chicago O'Hare Intl).

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Frequently asked questions about flying to Illinois

What is the cheapest flight I can find to Illinois?

For prices as low as $162/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $816/pp.

What is the best airport to fly into to visit Chicago?

Chicago is about 99% more popular to visit than any other city in Illinois, according to momondo users. When visiting Chicago, it is recommended to fly into Chicago O'Hare Intl Airport, where you can typically get the cheapest prices and the most convenient travel options into the city.

I plan on visiting River North. Which airport is the quickest drive?

The closest airport to River North is Chicago O'Hare Intl Airport, and would make for the quickest drive. For those interested in a secondary airport to fly into, consider looking at flights heading to Chicago Midway Airport.

What are the most popular landmarks in Illinois?

When visiting Illinois, the majority of people tend to find River North, Millennium Park and Chicago Water Tower to be the most notable landmarks in the area.

What is the weather like in Illinois?

The temperatures in Illinois range from -5 °C to 23 °C depending on the time of year. The warmest month in Illinois is July, and the coldest month in Illinois is January. Those looking for a drier month during their visit should travel during the months of January, February, or December, when rain is least likely compared to the rest of the year.

Which airlines fly to Illinois?

There are 8 airlines that fly to Illinois on a routine basis, but Qantas Airways, United Airlines and Air New Zealand happen to be the most popular among our users. In the past year, 41% of those who searched for flights to Illinois looked to travel with Qantas Airways, making this airline the top choice among momondo travellers.

When did momondo last update prices for flights to Illinois?

Prices for flights to Illinois refresh daily.

How many operators does momondo search for flights to Illinois?

The number of operators available for flights to Illinois is 8 as of October 2026.

How old do you have to be to fly to Illinois?

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 stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Illinois. Millions of users trust and use momondo every year so you are in good company.

Can I find flights to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois with this policy.

How can momondo help me find flights to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Illinois.

I’m not ready to book a flight to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track flight prices for Illinois and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.