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 32m and 20h 43m, respectively.

$794 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

Qantas Airways

28 July

MEL

21h 14m

1 stop

ORD

11 Aug

ORD

24h 23m

1 stop

MEL

$1,308

Qantas Airways

29 July

MEL

25h 23m

1 stop

ORD

11 Aug

ORD

48h 23m

1 stop

MEL

$1,325

Qantas Airways

1 Aug

MEL

23h 27m

1 stop

ORD

14 Aug

ORD

22h 29m

1 stop

MEL

$1,330

American Airlines

27 July

MEL

30h 06m

2 stops

ORD

9 Aug

ORD

32h 45m

1 stop

MEL

$1,333

American Airlines

27 July

MEL

21h 14m

1 stop

ORD

10 Aug

ORD

22h 29m

1 stop

MEL

$1,337

United Airlines

19 July

MEL

22h 40m

1 stop

ORD

29 July

ORD

24h 33m

2 stops

MEL

$1,349

United Airlines

15 July

MEL

23h 10m

2 stops

ORD

15 Aug

ORD

24h 30m

2 stops

MEL

$1,353

United Airlines

3 July

MEL

24h 19m

2 stops

ORD

29 July

ORD

25h 04m

2 stops

MEL

$1,355

American Airlines

27 July

MEL

23h 23m

2 stops

ORD

9 Aug

ORD

26h 16m

2 stops

MEL

$1,357

Delta

24 July

MEL

27h 15m

2 stops

MDW

2 Aug

MDW

45h 52m

2 stops

MEL

$1,359

Delta

24 July

MEL

22h 35m

1 stop

ORD

2 Aug

ORD

45h 10m

2 stops

MEL

$1,359

Delta

24 July

MEL

25h 31m

2 stops

ORD

2 Aug

ORD

45h 33m

2 stops

MEL

$1,363

Flights to Moline

Search all flight deals to Moline

American Airlines

5 Nov

BNE

50h 30m

2 stops

MLI

9 Nov

MLI

22h 55m

1 stop

BNE

$1,893

American Airlines

12 Nov

BNE

41h 54m

2 stops

MLI

16 Nov

MLI

22h 55m

1 stop

BNE

$1,894

American Airlines

5 Nov

BNE

45h 10m

2 stops

MLI

9 Nov

MLI

22h 55m

1 stop

BNE

$1,901

American Airlines

12 Nov

BNE

37h 43m

2 stops

MLI

16 Nov

MLI

33h 11m

1 stop

BNE

$2,798

American Airlines

5 Nov

BNE

25h 35m

2 stops

MLI

9 Nov

MLI

30h 53m

2 stops

BNE

$3,031

American Airlines

12 Nov

BNE

25h 35m

2 stops

MLI

16 Nov

MLI

32h 31m

2 stops

BNE

$3,033

American Airlines

5 Nov

BNE

25h 35m

2 stops

MLI

9 Nov

MLI

30h 53m

2 stops

BNE

$3,046

American Airlines

12 Nov

BNE

26h 30m

2 stops

MLI

16 Nov

MLI

26h 27m

2 stops

BNE

$3,050

American Airlines

5 Nov

BNE

29h 05m

1 stop

MLI

9 Nov

MLI

22h 55m

1 stop

BNE

$3,051

American Airlines

5 Nov

BNE

29h 05m

1 stop

MLI

9 Nov

MLI

22h 55m

1 stop

BNE

$3,065

American Airlines

12 Nov

BNE

21h 24m

1 stop

MLI

16 Nov

MLI

27h 20m

1 stop

BNE

$3,070

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.

09:45 - 15:59

MEL

ORD

21h 14m

1 stop

15:22 - 06:45

ORD

MEL

24h 23m

1 stop

$1,308Qantas Airways

Tue, 28 Jul - Tue, 11 Aug

09:45 - 20:08

MEL

ORD

25h 23m

1 stop

15:22 - 06:45

ORD

MEL

48h 23m

1 stop

$1,325Qantas Airways

Wed, 29 Jul - Tue, 11 Aug

09:45 - 18:12

MEL

ORD

23h 27m

1 stop

17:16 - 06:45

ORD

MEL

22h 29m

1 stop

$1,330Qantas Airways

Sat, 1 Aug - Fri, 14 Aug

09:45 - 16:50

MEL

ORD

22h 05m

1 stop

22:35 - 06:45

ORD

MEL

41h 10m

1 stop

$1,333American Airlines

Mon, 27 Jul - Sun, 9 Aug

10:55 - 18:35

MEL

ORD

22h 40m

1 stop

15:57 - 07:30

ORD

MEL

24h 33m

2 stops

$1,349United Airlines

Sun, 19 Jul - Wed, 29 Jul

10:55 - 19:05

MEL

ORD

23h 10m

2 stops

16:45 - 08:15

ORD

MEL

24h 30m

2 stops

$1,353United Airlines

Wed, 15 Jul - Sat, 15 Aug

09:45 - 18:08

MEL

ORD

23h 23m

2 stops

13:29 - 06:45

ORD

MEL

26h 16m

2 stops

$1,357American Airlines

Mon, 27 Jul - Sun, 9 Aug

09:20 - 18:42

SYD

STL

48h 22m

3 stops

12:10 - 07:20

STL

SYD

52h 10m

3 stops

$1,441Air Canada

Thu, 30 Jul - Sun, 9 Aug

12:20 - 23:26

BNE

ORD

26h 06m

2 stops

15:48 - 11:05

ORD

BNE

28h 17m

2 stops

$1,697Air New Zealand

Mon, 24 Aug - Fri, 4 Sep

06:00 - 14:41

ADL

ORD

25h 11m

2 stops

15:40 - 16:10

ORD

ADL

32h 00m

2 stops

$2,500Air Canada

Sat, 14 Nov - Fri, 20 Nov

Fly from

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 28/7

09:45-15:59

1 stop21h 14m

Chicago O'Hare Intl

Tue 11/8

15:22-06:45

1 stop24h 23m

$1,308

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Wed 29/7

09:45-20:08

1 stop25h 23m

Chicago O'Hare Intl

Tue 11/8

15:22-06:45

1 stop48h 23m

$1,325

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 1/8

09:45-18:12

1 stop23h 27m

Chicago O'Hare Intl

Fri 14/8

17:16-06:45

1 stop22h 29m

$1,330

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 27/7

09:45-16:50

1 stop22h 05m

Chicago O'Hare Intl

Sun 9/8

22:35-06:45

1 stop41h 10m

$1,333

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sun 19/7

10:55-18:35

1 stop22h 40m

Chicago O'Hare Intl

Wed 29/7

15:57-07:30

2 stops24h 33m

$1,349

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Wed 15/7

10:55-19:05

2 stops23h 10m

Chicago O'Hare Intl

Sat 15/8

16:45-08:15

2 stops24h 30m

$1,353

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 27/7

09:45-18:08

2 stops23h 23m

Chicago O'Hare Intl

Sun 9/8

13:29-06:45

2 stops26h 16m

$1,357

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 30/7

09:20-18:42

3 stops48h 22m

Lambert-St Louis

Sun 9/8

12:10-07:20

3 stops52h 10m

$1,441

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 24/8

12:20-23:26

2 stops26h 06m

Chicago O'Hare Intl

Fri 4/9

15:48-11:05

2 stops28h 17m

$1,697

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 14/11

06:00-14:41

2 stops25h 11m

Chicago O'Hare Intl

Fri 20/11

15:40-16:10

2 stops32h 00m

$2,500

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?

Air New Zealand, Air Canada and Qantas Airways are the top three most popular airlines that fly to Illinois from Australia according to our data. Air New Zealand is the first choice among our users, with 27% 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	$794
Best Round-Trip Price	$1,308
Fastest flight time	23h 46m

The best one-way flight price to Illinois from Australia in the last 5 days is $794 (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 5 days is $1,308 (Melbourne to Chicago O'Hare Intl).

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The fastest flight to Illinois from Australia takes 23h 46m (Sydney Kingsford Smith 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 $131/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $773/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 Air Canada, Air New Zealand and Qantas Airways happen to be the most popular among our users. In the past year, 27% of those who searched for flights to Illinois looked to travel with Air Canada, 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 9 as of June 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.