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 07m and 22h 32m, respectively.

$832 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

American Airlines

19 Feb

BNE

37h 01m

2 stops

ORD

21 Feb

ORD

31h 00m

1 stop

BNE

$1,259

Air Canada

2 Feb

BNE

19h 56m

1 stop

ORD

17 Feb

ORD

33h 30m

2 stops

BNE

$1,309

Air Canada

2 Feb

BNE

37h 20m

2 stops

ORD

17 Feb

ORD

26h 05m

2 stops

BNE

$1,321

Air Canada

2 Feb

BNE

19h 56m

1 stop

ORD

17 Feb

ORD

27h 40m

1 stop

BNE

$1,347

American Airlines

17 Mar

BNE

35h 08m

2 stops

ORD

1 Apr

ORD

27h 11m

2 stops

BNE

$1,385

Air Canada

17 Mar

BNE

24h 31m

2 stops

ORD

1 Apr

ORD

31h 25m

2 stops

BNE

$1,387

Air Canada

17 Mar

BNE

33h 51m

2 stops

ORD

1 Apr

ORD

31h 25m

2 stops

BNE

$1,408

Air Canada

17 Mar

BNE

24h 31m

2 stops

ORD

1 Apr

ORD

24h 25m

1 stop

BNE

$1,412

Air Canada

19 Feb

BNE

44h 10m

2 stops

ORD

21 Feb

ORD

24h 40m

2 stops

BNE

$1,415

Air Canada

19 Feb

BNE

19h 56m

1 stop

ORD

21 Feb

ORD

46h 45m

2 stops

BNE

$1,420

Air New Zealand

6 Feb

MEL

26h 16m

2 stops

ORD

20 Feb

ORD

25h 52m

2 stops

MEL

$1,427

Air Canada

17 Mar

BNE

24h 31m

2 stops

ORD

1 Apr

ORD

24h 25m

1 stop

BNE

$1,435

Flights to Moline

Search all flight deals to Moline

United Airlines

6 Feb

BNE

38h 32m

2 stops

MLI

10 Feb

MLI

23h 45m

2 stops

BNE

$1,272

United Airlines

5 Feb

BNE

25h 56m

2 stops

MLI

9 Feb

MLI

23h 45m

2 stops

BNE

$1,279

United Airlines

5 Feb

BNE

21h 14m

2 stops

MLI

9 Feb

MLI

46h 01m

2 stops

BNE

$1,282

American Airlines

6 Feb

BNE

42h 28m

2 stops

MLI

10 Feb

MLI

22h 32m

1 stop

BNE

$1,741

United Airlines

26 Feb

BNE

49h 14m

2 stops

MLI

5 Mar

MLI

43h 58m

2 stops

BNE

$2,012

American Airlines

5 Feb

BNE

35h 47m

2 stops

MLI

9 Feb

MLI

22h 32m

1 stop

BNE

$2,599

American Airlines

5 Feb

BNE

35h 47m

2 stops

MLI

9 Feb

MLI

22h 32m

1 stop

BNE

$2,604

American Airlines

5 Feb

BNE

28h 18m

1 stop

MLI

9 Feb

MLI

22h 32m

1 stop

BNE

$2,950

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.

10:45 - 15:29

BNE

STL

44h 44m

2 stops

16:05 - 08:45

STL

BNE

24h 40m

2 stops

$1,199Air Canada

Mon, 2 Feb - Sat, 21 Feb

10:45 - 15:29

BNE

STL

44h 44m

2 stops

16:05 - 08:45

STL

BNE

24h 40m

2 stops

$1,208Air Canada

Fri, 13 Feb - Sun, 22 Feb

09:40 - 16:14

BNE

STL

22h 34m

1 stop

08:31 - 05:00

STL

BNE

28h 29m

2 stops

$1,257American Airlines

Thu, 5 Feb - Mon, 9 Feb

19:40 - 23:59

BNE

STL

20h 19m

1 stop

11:55 - 06:30

STL

BNE

26h 35m

1 stop

$1,259American Airlines

Thu, 5 Feb - Mon, 9 Feb

11:40 - 22:59

BNE

STL

27h 19m

2 stops

07:41 - 07:30

STL

BNE

31h 49m

2 stops

$1,279United Airlines

Fri, 27 Feb - Fri, 6 Mar

11:30 - 21:40

MEL

STL

27h 10m

2 stops

14:50 - 10:00

STL

MEL

26h 10m

2 stops

$1,318United Airlines

Thu, 26 Feb - Thu, 5 Mar

12:10 - 21:26

MEL

ORD

26h 16m

2 stops

14:33 - 09:25

ORD

MEL

25h 52m

2 stops

$1,427Air New Zealand

Fri, 6 Feb - Fri, 20 Feb

12:10 - 18:52

MEL

ORD

23h 42m

2 stops

12:55 - 09:25

ORD

MEL

27h 30m

2 stops

$1,485Air New Zealand

Fri, 6 Feb - Fri, 20 Feb

12:00 - 23:59

MEL

STL

28h 59m

1 stop

06:38 - 09:30

STL

MEL

33h 52m

1 stop

$2,196Qantas Airways

Wed, 18 Feb - Mon, 23 Feb

10:45 - 17:13

MEL

STL

23h 28m

2 stops

16:13 - 16:40

STL

MEL

31h 27m

2 stops

$2,298Qantas Airways

Fri, 20 Feb - Mon, 23 Feb

Fly from

Route

Depart

Return

Price

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Mon 2/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Sat 21/2

16:05-08:45

2 stops24h 40m

$1,199

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Fri 13/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Sun 22/2

16:05-08:45

2 stops24h 40m

$1,208

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

09:40-16:14

1 stop22h 34m

Lambert-St Louis

Mon 9/2

08:31-05:00

2 stops28h 29m

$1,257

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

19:40-23:59

1 stop20h 19m

Lambert-St Louis

Mon 9/2

11:55-06:30

1 stop26h 35m

$1,259

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Fri 27/2

11:40-22:59

2 stops27h 19m

Lambert-St Louis

Fri 6/3

07:41-07:30

2 stops31h 49m

$1,279

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 26/2

11:30-21:40

2 stops27h 10m

Lambert-St Louis

Thu 5/3

14:50-10:00

2 stops26h 10m

$1,318

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 6/2

12:10-21:26

2 stops26h 16m

Chicago O'Hare Intl

Fri 20/2

14:33-09:25

2 stops25h 52m

$1,427

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 6/2

12:10-18:52

2 stops23h 42m

Chicago O'Hare Intl

Fri 20/2

12:55-09:25

2 stops27h 30m

$1,485

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 18/2

12:00-23:59

1 stop28h 59m

Lambert-St Louis

Mon 23/2

06:38-09:30

1 stop33h 52m

$2,196

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 20/2

10:45-17:13

2 stops23h 28m

Lambert-St Louis

Mon 23/2

16:13-16:40

2 stops31h 27m

$2,298

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 56% 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	$832
Best Round-Trip Price	$1,199
Fastest flight time	27h 32m

The best one-way flight price to Illinois from Australia in the last 72 hours is $832 (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 $1,199 (Brisbane to Lambert-St Louis).

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The fastest flight to Illinois from Australia takes 27h 32m (Sydney Kingsford Smith to Lambert-St Louis).

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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 $108/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $892/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, United Airlines and Air Canada happen to be the most popular among our users. In the past year, 56% 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 January 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.

An easier way to manage your Illinois trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Illinois

$1,259 Cheap flights to Illinois

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Illinois departing on 19/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Recent flights found to popular cities in Illinois

Find flights to these popular cities in Illinois from your nearest airport.

Flights to Chicago

Flights to Moline

Find the cheapest flights from Australia to Illinois

Recent return flight deals from Australia to Illinois

Recent one-way flight deals from Australia to Illinois

Recent last minute flight deals from Australia to Illinois

momondo Fare Finder

Use the filters below to find and compare flights to Illinois that are best for you.

See travel insights to Illinois from

Illinois flights insights and trends

Which airlines fly to Illinois?

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 07m and 22h 32m, respectively.

Cheapest flights to cities in Illinois

Click on the cities below to find out when it's cheapest to fly to Illinois from Australia

Cheap Illinois flight deals and tips

Summary info about Illinois flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Frequently asked questions about flying to Illinois

What is the cheapest flight I can find to Illinois?

What is the best airport to fly into to visit Chicago?

I plan on visiting River North. Which airport is the quickest drive?

What are the most popular landmarks in Illinois?

What is the weather like in Illinois?

Which airlines fly to Illinois?

When did momondo last update prices for flights to Illinois?

How many operators does momondo search for flights to Illinois?

How old do you have to be to fly to Illinois?

What documentation or ID do you need to fly to Illinois?

Why use momondo?

Why should I use momondo to find a flight deal to Illinois?

Can I find flights to Illinois with flexible booking policies on momondo?

How can momondo help me find flights to Illinois?

I’m not ready to book a flight to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular Flights to Illinois

Popular routes according to searches in the past day on momondo