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 20h 05m and 25h 08m, respectively.

$839 Cheap Flights to Illinois in 2026

Look for other cheap flights to Illinois

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

11 Aug

MEL

21h 09m

1 stop

ORD

18 Aug

ORD

22h 29m

1 stop

MEL

$1,314

United Airlines

19 July

MEL

22h 40m

1 stop

ORD

29 July

ORD

29h 36m

2 stops

MEL

$1,353

United Airlines

12 July

MEL

28h 45m

2 stops

ORD

27 July

ORD

22h 55m

1 stop

MEL

$1,361

Delta

24 July

MEL

23h 25m

2 stops

MDW

2 Aug

MDW

45h 52m

2 stops

MEL

$1,362

Delta

19 July

MEL

22h 35m

1 stop

ORD

29 July

ORD

32h 23m

2 stops

MEL

$1,362

United Airlines

12 July

MEL

20h 05m

1 stop

ORD

25 July

ORD

33h 45m

1 stop

MEL

$1,370

Delta

24 July

MEL

23h 25m

2 stops

MDW

2 Aug

MDW

47h 40m

2 stops

MEL

$1,372

Delta

24 July

MEL

26h 29m

2 stops

ORD

2 Aug

ORD

46h 38m

2 stops

MEL

$1,372

United Airlines

12 July

MEL

30h 29m

2 stops

ORD

27 July

ORD

22h 20m

1 stop

MEL

$1,377

Delta

24 July

MEL

27h 15m

2 stops

MDW

2 Aug

MDW

45h 52m

2 stops

MEL

$1,380

Delta

24 July

MEL

28h 18m

1 stop

ORD

2 Aug

ORD

45h 33m

2 stops

MEL

$1,380

Delta

24 July

MEL

27h 15m

2 stops

MDW

2 Aug

MDW

45h 44m

2 stops

MEL

$1,382

Flights to Moline

Search all flight deals to Moline

Cathay Pacific

30 Sept

BNE

39h 00m

2 stops

MLI

29 Oct

MLI

61h 37m

2 stops

BNE

$2,279

Multiple Airlines

30 Sept

BNE

39h 00m

2 stops

MLI

29 Oct

MLI

40h 12m

3 stops

BNE

$2,325

Multiple Airlines

1 Oct

BNE

44h 45m

3 stops

MLI

29 Oct

MLI

38h 17m

3 stops

BNE

$2,420

Multiple Airlines

30 Sept

BNE

31h 18m

2 stops

MLI

28 Oct

MLI

27h 17m

2 stops

BNE

$2,424

Multiple Airlines

30 Sept

BNE

30h 03m

2 stops

MLI

28 Oct

MLI

27h 35m

1 stop

BNE

$2,425

Multiple Airlines

1 Oct

BNE

30h 03m

2 stops

MLI

28 Oct

MLI

27h 17m

2 stops

BNE

$2,460

Multiple Airlines

1 Oct

BNE

30h 03m

2 stops

MLI

28 Oct

MLI

23h 02m

1 stop

BNE

$2,462

Multiple Airlines

30 Sept

BNE

30h 03m

2 stops

MLI

29 Oct

MLI

26h 55m

2 stops

BNE

$2,505

Multiple Airlines

30 Sept

BNE

30h 03m

2 stops

MLI

30 Oct

MLI

23h 02m

1 stop

BNE

$2,506

Multiple Airlines

21 July

BNE

38h 25m

2 stops

MLI

29 July

MLI

37h 42m

2 stops

BNE

$2,518

Multiple Airlines

21 July

BNE

38h 25m

2 stops

MLI

29 July

MLI

40h 32m

3 stops

BNE

$2,543

Multiple Airlines

30 Sept

BNE

30h 03m

2 stops

MLI

30 Oct

MLI

27h 02m

2 stops

BNE

$2,545

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 - 15:54

MEL

ORD

21h 09m

1 stop

17:16 - 06:45

ORD

MEL

22h 29m

1 stop

$1,314Qantas Airways

Tue, 11 Aug - Tue, 18 Aug

10:55 - 18:35

MEL

ORD

22h 40m

1 stop

10:54 - 07:30

ORD

MEL

29h 36m

2 stops

$1,353United Airlines

Sun, 19 Jul - Wed, 29 Jul

09:30 - 23:15

MEL

ORD

28h 45m

2 stops

18:20 - 08:15

ORD

MEL

22h 55m

1 stop

$1,361United Airlines

Sun, 12 Jul - Mon, 27 Jul

09:10 - 18:05

SYD

ORD

23h 55m

1 stop

13:50 - 07:05

ORD

SYD

26h 15m

1 stop

$1,436American Airlines

Tue, 22 Sep - Tue, 29 Sep

11:15 - 06:01

SYD

ORD

34h 46m

1 stop

10:15 - 06:10

ORD

SYD

26h 55m

1 stop

$1,443American Airlines

Thu, 29 Oct - Sun, 1 Nov

23:45 - 19:44

PER

ORD

32h 59m

2 stops

17:16 - 11:15

ORD

PER

28h 59m

2 stops

$1,983Qantas Airways

Fri, 31 Jul - Mon, 31 Aug

08:20 - 14:20

PER

ORD

43h 00m

1 stop

16:00 - 06:50

ORD

PER

25h 50m

1 stop

$2,244Cathay Pacific

Mon, 13 Jul - Sun, 26 Jul

00:10 - 14:20

PER

ORD

27h 10m

1 stop

16:00 - 06:50

ORD

PER

25h 50m

1 stop

$2,323Cathay Pacific

Mon, 13 Jul - Tue, 21 Jul

06:00 - 14:41

OOL

ORD

24h 41m

2 stops

09:50 - 12:40

ORD

OOL

34h 50m

3 stops

$2,721Air Canada

Thu, 12 Nov - Mon, 16 Nov

06:00 - 19:35

OOL

ORD

29h 35m

3 stops

08:00 - 12:40

ORD

OOL

36h 40m

3 stops

$2,732Air Canada

Thu, 12 Nov - Mon, 16 Nov

Fly from

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 11/8

09:45-15:54

1 stop21h 09m

Chicago O'Hare Intl

Tue 18/8

17:16-06:45

1 stop22h 29m

$1,314

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sun 19/7

10:55-18:35

1 stop22h 40m

Chicago O'Hare Intl

Wed 29/7

10:54-07:30

2 stops29h 36m

$1,353

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sun 12/7

09:30-23:15

2 stops28h 45m

Chicago O'Hare Intl

Mon 27/7

18:20-08:15

1 stop22h 55m

$1,361

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 22/9

09:10-18:05

1 stop23h 55m

Chicago O'Hare Intl

Tue 29/9

13:50-07:05

1 stop26h 15m

$1,436

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 29/10

11:15-06:01

1 stop34h 46m

Chicago O'Hare Intl

Sun 1/11

10:15-06:10

1 stop26h 55m

$1,443

PerthChicago

PER - ORD

PERORD

Perth

Fri 31/7

23:45-19:44

2 stops32h 59m

Chicago O'Hare Intl

Mon 31/8

17:16-11:15

2 stops28h 59m

$1,983

PerthChicago

PER - ORD

PERORD

Perth

Mon 13/7

08:20-14:20

1 stop43h 00m

Chicago O'Hare Intl

Sun 26/7

16:00-06:50

1 stop25h 50m

$2,244

PerthChicago

PER - ORD

PERORD

Perth

Mon 13/7

00:10-14:20

1 stop27h 10m

Chicago O'Hare Intl

Tue 21/7

16:00-06:50

1 stop25h 50m

$2,323

CoolangattaChicago

OOL - ORD

OOLORD

Coolangatta Gold Coast

Thu 12/11

06:00-14:41

2 stops24h 41m

Chicago O'Hare Intl

Mon 16/11

09:50-12:40

3 stops34h 50m

$2,721

CoolangattaChicago

OOL - ORD

OOLORD

Coolangatta Gold Coast

Thu 12/11

06:00-19:35

3 stops29h 35m

Chicago O'Hare Intl

Mon 16/11

08:00-12:40

3 stops36h 40m

$2,732

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 Canada, Air New Zealand and Qantas Airways are the top three most popular airlines that fly to Illinois from Australia according to our data. Air Canada 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	$839
Best Round-Trip Price	$1,314
Fastest flight time	24h 22m

The best one-way flight price to Illinois from Australia in the last 5 days is $839 (Melbourne to Lambert-St Louis).

Search Deals

The best round-trip flight price to Illinois from Australia in the last 5 days is $1,314 (Melbourne to Chicago O'Hare Intl).

Search Deals

The fastest flight to Illinois from Australia takes 24h 22m (Sydney Kingsford Smith to Chicago Midway).

Search Deals

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.