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 19h 23m and 20h 46m, 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

5 Nov

SYD

23h 49m

1 stop

ORD

9 Nov

ORD

29h 28m

1 stop

SYD

$1,056

American Airlines

10 Nov

SYD

21h 55m

1 stop

ORD

23 Nov

ORD

27h 03m

2 stops

SYD

$1,060

American Airlines

9 Nov

SYD

22h 50m

1 stop

ORD

25 Nov

ORD

21h 15m

1 stop

SYD

$1,065

Delta

21 Oct

SYD

19h 23m

1 stop

ORD

4 Nov

ORD

22h 30m

1 stop

SYD

$1,066

American Airlines

22 Oct

SYD

24h 28m

1 stop

ORD

6 Nov

ORD

24h 35m

1 stop

SYD

$1,127

American Airlines

7 Nov

SYD

25h 49m

1 stop

ORD

21 Nov

ORD

41h 57m

1 stop

SYD

$1,131

American Airlines

7 Nov

SYD

23h 49m

1 stop

ORD

25 Nov

ORD

22h 51m

1 stop

SYD

$1,135

Delta

25 Oct

SYD

23h 35m

1 stop

ORD

9 Nov

ORD

23h 43m

2 stops

SYD

$1,137

American Airlines

1 Nov

SYD

21h 55m

1 stop

ORD

8 Nov

ORD

24h 35m

1 stop

SYD

$1,144

Qantas Airways

6 Nov

SYD

21h 55m

1 stop

ORD

23 Nov

ORD

31h 31m

1 stop

SYD

$1,151

American Airlines

23 Oct

SYD

24h 28m

1 stop

ORD

29 Oct

ORD

22h 05m

1 stop

SYD

$1,197

American Airlines

7 Nov

SYD

22h 46m

1 stop

ORD

26 Nov

ORD

26h 36m

1 stop

SYD

$1,200

Flights to Moline

Search all flight deals to Moline

Lufthansa

15 Nov

MEL

27h 14m

2 stops

MLI

22 Nov

MLI

30h 50m

2 stops

MEL

$1,608

American Airlines

15 Nov

MEL

21h 43m

1 stop

MLI

22 Nov

MLI

24h 27m

1 stop

MEL

$2,495

American Airlines

15 Nov

MEL

21h 43m

1 stop

MLI

22 Nov

MLI

24h 07m

2 stops

MEL

$2,548

Multiple Airlines

15 Nov

MEL

41h 58m

2 stops

MLI

22 Nov

MLI

38h 34m

3 stops

MEL

$2,850

Multiple Airlines

15 Nov

MEL

40h 58m

3 stops

MLI

22 Nov

MLI

38h 34m

3 stops

MEL

$2,992

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

17:29 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 31m2 stops Phoenix Sky Harbor Intl Los Angeles

$1,056American Airlines

Thu, 5 Nov - Mon, 9 Nov

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

23h 49m1 stop Los Angeles

10:32 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

29h 28m1 stop Los Angeles

$1,056American Airlines

Thu, 5 Nov - Mon, 9 Nov

10:40 - 16:41SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 01m2 stops Los Angeles Minneapolis St Paul

14:44 - 08:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 46m2 stops Detroit Metropolitan Wayne County Los Angeles

$1,065Delta

Tue, 17 Nov - Tue, 24 Nov

10:40 - 17:27SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 47m1 stop Los Angeles

07:45 - 08:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 45m1 stop Los Angeles

$1,065Delta

Tue, 17 Nov - Tue, 24 Nov

11:10 - 16:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

21h 55m1 stop Los Angeles

08:29 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 31m1 stop Los Angeles

$1,151Qantas Airways

Fri, 6 Nov - Mon, 23 Nov

11:10 - 22:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

28h 20m1 stop Los Angeles

15:21 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 39m2 stops Denver Intl Los Angeles

$1,211Qantas Airways

Fri, 6 Nov - Mon, 23 Nov

10:00 - 16:35BNE Brisbane-ORD Chicago O'Hare Intl

21h 35m2 stops Vancouver Intl Winnipeg

17:54 - 08:45ORD Chicago O'Hare Intl-BNE Brisbane

46h 51m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,357Air Canada

Thu, 22 Oct - Sat, 7 Nov

10:45 - 19:52BNE Brisbane-ORD Chicago O'Hare Intl

25h 07m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

07:05 - 08:45ORD Chicago O'Hare Intl-BNE Brisbane

33h 40m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,358Air Canada

Mon, 9 Nov - Sun, 7 Feb

07:30 - 22:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

31h 30m2 stops Auckland Intl Los Angeles

09:21 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 14m2 stops Houston George Bush Intcntl Auckland Intl

$1,700Air New Zealand

Tue, 10 Nov - Tue, 17 Nov

14:05 - 00:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 54m2 stops Auckland Intl Los Angeles

15:00 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 35m2 stops Los Angeles Auckland Intl

$1,746Air New Zealand

Fri, 6 Nov - Mon, 23 Nov

Recent last minute flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

10:15 - 17:50SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 35m1 stop Los Angeles

18:59 - 07:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

20h 51m1 stop Los Angeles

$1,066Delta

Thu, 8 Oct - Wed, 21 Oct

10:15 - 13:38SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

19h 23m1 stop Los Angeles

11:19 - 07:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 31m2 stops Detroit Metropolitan Wayne County Los Angeles

$1,066Delta

Thu, 8 Oct - Wed, 21 Oct

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

21h 49m1 stop Los Angeles

11:45 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 15m1 stop Los Angeles

$1,144American Airlines

Wed, 7 Oct - Thu, 12 Nov

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

21h 49m1 stop Los Angeles

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

24h 46m2 stops Dallas/Fort Worth Brisbane

$1,210Qantas Airways

Wed, 7 Oct - Thu, 12 Nov

10:00 - 20:06BNE Brisbane-ORD Chicago O'Hare Intl

25h 06m1 stop Vancouver Intl

15:40 - 07:05ORD Chicago O'Hare Intl-BNE Brisbane

24h 25m1 stop Vancouver Intl

$1,395Air Canada

Thu, 8 Oct - Wed, 21 Oct

10:00 - 23:00BNE Brisbane-ORD Chicago O'Hare Intl

28h 00m2 stops Vancouver Intl San Francisco

15:40 - 07:05ORD Chicago O'Hare Intl-BNE Brisbane

24h 25m1 stop Vancouver Intl

$1,410Air Canada

Thu, 8 Oct - Wed, 21 Oct

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

24h 28m1 stop Los Angeles

18:55 - 08:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 10m1 stop Los Angeles

$2,058Qantas Airways

Thu, 8 Oct - Thu, 15 Oct

09:45 - 00:30MEL Melbourne-ORD Chicago O'Hare Intl

30h 45m1 stop Los Angeles

18:02 - 14:15ORD Chicago O'Hare Intl-MEL Melbourne

28h 13m2 stops Dallas/Fort Worth Sydney Kingsford Smith

$2,281American Airlines

Wed, 7 Oct - Thu, 15 Oct

15:25 - 13:55MEL Melbourne-ORD Chicago O'Hare Intl

38h 30m1 stop Hong Kong Intl

16:15 - 23:15ORD Chicago O'Hare Intl-MEL Melbourne

39h 00m1 stop Hong Kong Intl

$2,568Cathay Pacific

Thu, 8 Oct - Wed, 14 Oct

08:25 - 13:55MEL Melbourne-ORD Chicago O'Hare Intl

45h 30m1 stop Hong Kong Intl

16:15 - 23:15ORD Chicago O'Hare Intl-MEL Melbourne

39h 00m1 stop Hong Kong Intl

$2,615Cathay Pacific

Thu, 8 Oct - Tue, 13 Oct

Fly from

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

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

17:29-09:00

2 stops22h 31m

$1,056

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

10:32-09:00

1 stop29h 28m

$1,056

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 17/11

10:40-16:41

2 stops23h 01m

Chicago O'Hare Intl

Tue 24/11

14:44-08:30

2 stops24h 46m

$1,065

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 17/11

10:40-17:27

1 stop23h 47m

Chicago O'Hare Intl

Tue 24/11

07:45-08:30

1 stop31h 45m

$1,065

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 6/11

11:10-16:05

1 stop21h 55m

Chicago O'Hare Intl

Mon 23/11

08:29-09:00

1 stop31h 31m

$1,151

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 6/11

11:10-22:30

1 stop28h 20m

Chicago O'Hare Intl

Mon 23/11

15:21-09:00

2 stops24h 39m

$1,211

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Thu 22/10

10:00-16:35

2 stops21h 35m

Chicago O'Hare Intl

Sat 7/11

17:54-08:45

2 stops46h 51m

$1,357

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Mon 9/11

10:45-19:52

2 stops25h 07m

Chicago O'Hare Intl

Sun 7/2

07:05-08:45

2 stops33h 40m

$1,358

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 10/11

07:30-22:00

2 stops31h 30m

Chicago O'Hare Intl

Tue 17/11

09:21-08:35

2 stops30h 14m

$1,700

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 6/11

14:05-00:59

2 stops27h 54m

Chicago O'Hare Intl

Mon 23/11

15:00-08:35

2 stops24h 35m

$1,746

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, Air New Zealand and United Airlines 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 40% 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	$622
Best Round-Trip Price	$1,056
Fastest flight time	27h 40m

The best one-way flight price to Illinois from Australia in the last 5 days is $622 (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 $1,056 (Sydney Kingsford Smith to Chicago O'Hare Intl).

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The fastest flight to Illinois from Australia takes 27h 40m (Brisbane 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 $163/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $804/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, Air New Zealand and United Airlines happen to be the most popular among our users. In the past year, 40% 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.