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 22h 16m and 23h 52m, respectively.

$686 Cheap Flights to Illinois in 2026

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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

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Multiple Airlines

8 Sept

SYD

32h 02m

2 stops

ORD

22 Sept

ORD

48h 55m

3 stops

SYD

$1,188

Multiple Airlines

8 Sept

SYD

39h 02m

2 stops

ORD

22 Sept

ORD

49h 05m

3 stops

SYD

$1,199

Air Canada

16 Nov

MEL

23h 27m

2 stops

ORD

22 Nov

ORD

30h 45m

2 stops

MEL

$1,304

Air Canada

14 Sept

BNE

25h 12m

2 stops

ORD

21 Sept

ORD

29h 00m

2 stops

BNE

$1,309

Air Canada

27 Aug

BNE

19h 21m

1 stop

ORD

9 Sept

ORD

31h 20m

2 stops

BNE

$1,310

Air Canada

2 Sept

MEL

32h 56m

2 stops

ORD

15 Sept

ORD

28h 55m

2 stops

MEL

$1,311

Air Canada

8 Sept

SYD

20h 23m

1 stop

ORD

22 Sept

ORD

24h 40m

1 stop

SYD

$1,311

Air Canada

14 Sept

BNE

25h 12m

2 stops

ORD

21 Sept

ORD

29h 00m

2 stops

BNE

$1,313

Air Canada

16 Nov

MEL

23h 27m

2 stops

ORD

23 Nov

ORD

30h 05m

2 stops

MEL

$1,313

Air Canada

14 Sept

BNE

19h 43m

1 stop

ORD

21 Sept

ORD

29h 00m

2 stops

BNE

$1,316

Air Canada

14 Sept

BNE

19h 43m

1 stop

ORD

21 Sept

ORD

29h 00m

2 stops

BNE

$1,319

Air Canada

15 Sept

BNE

19h 28m

1 stop

ORD

22 Sept

ORD

31h 20m

2 stops

BNE

$1,320

Flights to Moline

Search all flight deals to Moline

American Airlines

14 Sept

BNE

34h 28m

2 stops

MLI

11 Oct

MLI

31h 00m

2 stops

BNE

$1,656

United Airlines

16 Sept

BNE

25h 31m

2 stops

MLI

6 Oct

MLI

56h 58m

2 stops

BNE

$1,664

American Airlines

14 Sept

BNE

31h 18m

2 stops

MLI

10 Oct

MLI

56h 00m

2 stops

BNE

$1,691

American Airlines

17 Sept

BNE

23h 33m

2 stops

MLI

11 Oct

MLI

31h 00m

2 stops

BNE

$1,701

American Airlines

17 Sept

BNE

23h 33m

2 stops

MLI

10 Oct

MLI

56h 00m

2 stops

BNE

$1,710

American Airlines

14 Sept

BNE

30h 03m

2 stops

MLI

9 Oct

MLI

44h 57m

2 stops

BNE

$1,738

United Airlines

18 Sept

BNE

48h 16m

2 stops

MLI

10 Oct

MLI

56h 58m

2 stops

BNE

$1,740

American Airlines

16 Sept

BNE

23h 33m

2 stops

MLI

9 Oct

MLI

44h 57m

2 stops

BNE

$1,784

American Airlines

18 Sept

BNE

30h 48m

2 stops

MLI

9 Oct

MLI

44h 57m

2 stops

BNE

$1,859

Qantas Airways

16 Sept

BNE

39h 27m

3 stops

MLI

9 Oct

MLI

31h 00m

2 stops

BNE

$1,971

United Airlines

15 Sept

BNE

25h 31m

2 stops

MLI

7 Oct

MLI

31h 05m

2 stops

BNE

$2,441

American Airlines

14 Sept

BNE

30h 03m

2 stops

MLI

6 Oct

MLI

26h 39m

2 stops

BNE

$2,472

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.

13:15 - 06:17-

32h 02m

06:30 - 22:25-

48h 55m

$1,188Multiple Airlines

Tue, 8 Sep - Tue, 22 Sep

06:15 - 06:17-

39h 02m

06:20 - 22:25-

49h 05m

$1,199Multiple Airlines

Tue, 8 Sep - Tue, 22 Sep

08:10 - 14:37-

23h 27m

15:30 - 15:15-

30h 45m

$1,304Air Canada

Mon, 16 Nov - Sun, 22 Nov

10:00 - 20:12-

25h 12m

11:05 - 07:05-

29h 00m

$1,309Air Canada

Mon, 14 Sep - Mon, 21 Sep

09:30 - 04:45-

34h 15m

22:00 - 08:15-

43h 15m

$1,373United Airlines

Sun, 30 Aug - Sun, 6 Sep

10:55 - 05:04-

33h 09m

22:00 - 08:15-

43h 15m

$1,373United Airlines

Mon, 31 Aug - Sun, 6 Sep

11:20 - 23:45-

29h 25m

06:02 - 09:00-

33h 58m

$1,481American Airlines

Mon, 2 Nov - Mon, 16 Nov

11:20 - 18:15-

23h 55m

06:02 - 09:00-

33h 58m

$1,481American Airlines

Mon, 2 Nov - Mon, 16 Nov

09:10 - 23:30-

29h 20m

06:20 - 07:05-

33h 45m

$1,521Qantas Airways

Wed, 9 Sep - Sat, 19 Sep

09:10 - 22:59-

28h 49m

06:30 - 07:05-

33h 35m

$1,528Qantas Airways

Fri, 4 Sep - Wed, 23 Sep

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 8/9

13:15-06:17

2 stops32h 02m

Chicago O'Hare Intl

Tue 22/9

06:30-22:25

3 stops48h 55m

$1,188

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 8/9

06:15-06:17

2 stops39h 02m

Chicago O'Hare Intl

Tue 22/9

06:20-22:25

3 stops49h 05m

$1,199

Fastest return journey

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 16/11

08:10-14:37

2 stops23h 27m

Chicago O'Hare Intl

Sun 22/11

15:30-15:15

2 stops30h 45m

$1,304

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 14/9

10:00-20:12

2 stops25h 12m

Chicago O'Hare Intl

Mon 21/9

11:05-07:05

2 stops29h 00m

$1,309

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sun 30/8

09:30-04:45

1 stop34h 15m

Chicago O'Hare Intl

Sun 6/9

22:00-08:15

1 stop43h 15m

$1,373

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 31/8

10:55-05:04

1 stop33h 09m

Chicago O'Hare Intl

Sun 6/9

22:00-08:15

1 stop43h 15m

$1,373

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 2/11

11:20-23:45

1 stop29h 25m

Lambert-St Louis

Mon 16/11

06:02-09:00

1 stop33h 58m

$1,481

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 2/11

11:20-18:15

2 stops23h 55m

Lambert-St Louis

Mon 16/11

06:02-09:00

1 stop33h 58m

$1,481

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 9/9

09:10-23:30

1 stop29h 20m

Lambert-St Louis

Sat 19/9

06:20-07:05

1 stop33h 45m

$1,521

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 4/9

09:10-22:59

1 stop28h 49m

Lambert-St Louis

Wed 23/9

06:30-07:05

1 stop33h 35m

$1,528

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 Canada 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 33% 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	$686
Best Round-Trip Price	$1,188
Fastest flight time	36h 28m

The best one-way flight price to Illinois from Australia in the last 5 days is $686 (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 $1,188 (Sydney Kingsford Smith to Chicago O'Hare Intl).

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The fastest flight to Illinois from Australia takes 36h 28m (Melbourne to Chicago Midway).

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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 $134/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $709/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, Chicago Water Tower and Chicago Riverwalk 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 Canada happen to be the most popular among our users. In the past year, 33% 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 August 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.