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 34m and 29h 40m, respectively.

$721 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

Search all flight deals to Chicago

Multiple Airlines

25 Apr

MEL

24h 57m

2 stops

ORD

2 May

ORD

30h 00m

2 stops

MEL

$1,149

Multiple Airlines

30 Apr

MEL

24h 57m

2 stops

ORD

13 May

ORD

37h 35m

2 stops

MEL

$1,199

Multiple Airlines

25 Apr

SYD

31h 20m

2 stops

ORD

2 May

ORD

29h 50m

2 stops

SYD

$1,272

Multiple Airlines

1 June

MEL

30h 53m

2 stops

ORD

10 June

ORD

32h 16m

2 stops

MEL

$1,392

Multiple Airlines

15 Apr

MEL

25h 02m

2 stops

ORD

22 Apr

ORD

37h 35m

2 stops

MEL

$1,396

Air Canada

7 Apr

BNE

33h 00m

2 stops

ORD

14 Apr

ORD

24h 25m

1 stop

BNE

$1,397

Air Canada

7 Apr

BNE

33h 00m

2 stops

ORD

14 Apr

ORD

23h 50m

2 stops

BNE

$1,399

Air Canada

17 June

BNE

19h 45m

1 stop

ORD

26 June

ORD

43h 25m

2 stops

BNE

$1,408

Multiple Airlines

21 Apr

SYD

25h 12m

2 stops

ORD

24 Apr

ORD

41h 10m

2 stops

SYD

$1,415

Air Canada

23 Apr

BNE

37h 00m

2 stops

ORD

30 Apr

ORD

48h 20m

2 stops

BNE

$1,418

Multiple Airlines

11 May

SYD

31h 35m

2 stops

ORD

1 June

ORD

32h 21m

2 stops

SYD

$1,418

Air Canada

23 Apr

BNE

19h 45m

1 stop

ORD

30 Apr

ORD

42h 45m

2 stops

BNE

$1,421

Flights to Moline

Search all flight deals to Moline

Emirates

7 Apr

BNE

58h 16m

2 stops

MLI

15 Apr

MLI

48h 05m

2 stops

BNE

$20,026

Find the cheapest flights from Australia to Illinois

Round-trip

One-way

Last minute

Recent return flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

13:30 - 23:27

MEL

ORD

24h 57m

2 stops

15:00 - 12:00

ORD

MEL

30h 00m

2 stops

$1,149Multiple Airlines

Sat, 25 Apr - Sat, 2 May

13:30 - 23:27

MEL

ORD

24h 57m

2 stops

07:30 - 12:05

ORD

MEL

37h 35m

2 stops

$1,199Multiple Airlines

Thu, 30 Apr - Wed, 13 May

13:15 - 05:35

SYD

ORD

31h 20m

2 stops

15:00 - 11:50

ORD

SYD

29h 50m

2 stops

$1,272Multiple Airlines

Sat, 25 Apr - Sat, 2 May

13:30 - 05:23

MEL

ORD

30h 53m

2 stops

12:44 - 12:00

ORD

MEL

32h 16m

2 stops

$1,392Multiple Airlines

Mon, 1 Jun - Wed, 10 Jun

20:45 - 14:45

BNE

ORD

33h 00m

2 stops

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

$1,397Air Canada

Tue, 7 Apr - Tue, 14 Apr

20:45 - 14:45

BNE

ORD

33h 00m

2 stops

16:15 - 07:05

ORD

BNE

23h 50m

2 stops

$1,399Air Canada

Tue, 7 Apr - Tue, 14 Apr

11:55 - 23:15

SYD

ORD

26h 20m

2 stops

16:30 - 08:45

ORD

SYD

25h 15m

2 stops

$1,422Air New Zealand

Fri, 5 Jun - Fri, 19 Jun

11:55 - 23:15

SYD

ORD

26h 20m

2 stops

15:47 - 17:50

ORD

SYD

35h 03m

2 stops

$1,435Air New Zealand

Fri, 5 Jun - Fri, 19 Jun

09:45 - 23:57

MEL

STL

29h 12m

1 stop

06:21 - 06:45

STL

MEL

33h 24m

1 stop

$1,564Qantas Airways

Thu, 23 Apr - Thu, 30 Apr

09:45 - 23:08

MEL

STL

28h 23m

1 stop

16:14 - 13:20

STL

MEL

30h 06m

2 stops

$1,680American Airlines

Mon, 7 Sep - Sun, 27 Sep

Fly from

Route

Depart

Return

Price

Cheapest return flight

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 25/4

13:30-23:27

2 stops24h 57m

Chicago O'Hare Intl

Sat 2/5

15:00-12:00

2 stops30h 00m

$1,149

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 30/4

13:30-23:27

2 stops24h 57m

Chicago O'Hare Intl

Wed 13/5

07:30-12:05

2 stops37h 35m

$1,199

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 25/4

13:15-05:35

2 stops31h 20m

Chicago O'Hare Intl

Sat 2/5

15:00-11:50

2 stops29h 50m

$1,272

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 1/6

13:30-05:23

2 stops30h 53m

Chicago O'Hare Intl

Wed 10/6

12:44-12:00

2 stops32h 16m

$1,392

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 7/4

20:45-14:45

2 stops33h 00m

Chicago O'Hare Intl

Tue 14/4

15:40-07:05

1 stop24h 25m

$1,397

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 7/4

20:45-14:45

2 stops33h 00m

Chicago O'Hare Intl

Tue 14/4

16:15-07:05

2 stops23h 50m

$1,399

Fastest return journey

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/6

11:55-23:15

2 stops26h 20m

Chicago O'Hare Intl

Fri 19/6

16:30-08:45

2 stops25h 15m

$1,422

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/6

11:55-23:15

2 stops26h 20m

Chicago O'Hare Intl

Fri 19/6

15:47-17:50

2 stops35h 03m

$1,435

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 23/4

09:45-23:57

1 stop29h 12m

Lambert-St Louis

Thu 30/4

06:21-06:45

1 stop33h 24m

$1,564

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mon 7/9

09:45-23:08

1 stop28h 23m

Lambert-St Louis

Sun 27/9

16:14-13:20

2 stops30h 06m

$1,680

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 Canada 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 39% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 9 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	$721
Best Round-Trip Price	$1,149
Fastest flight time	25h 55m

The best one-way flight price to Illinois from Australia in the last 72 hours is $721 (Sydney Kingsford Smith to Chicago O'Hare Intl).

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The best round-trip flight price to Illinois from Australia in the last 72 hours is $1,149 (Melbourne to Chicago O'Hare Intl).

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The fastest flight to Illinois from Australia takes 25h 55m (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 $80/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $752/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 Riverwalk and Millennium Park 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 9 airlines that fly to Illinois on a routine basis, but Qantas Airways, Air Canada and United Airlines happen to be the most popular among our users. In the past year, 39% 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 10 as of March 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.