What airlines fly to Australia?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Australia from Illinois according to our data. Qantas Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 10 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to Australia?

ANA, Air Canada, and Cathay Pacific are the most popular carriers operating from Illinois to Australia

How long is the flight from Illinois to Australia?

Flight times from Illinois to Australia vary, but if you’re flying out of Chicago and flying into Sydney (one of the most popular routes), then the duration is 23h 52m on average. Another popular route from Illinois to Australia is flying from Peoria to Sydney, which will take roughly 33h 20m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Illinois to Australia?

Prices for flights from Illinois to Australia refresh daily.

How many operators does momondo search for flights from Illinois to Australia?

As of September 2026, there are 10 operators available to choose from for flights from Illinois to Australia.

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

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 layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Australia.

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

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$520 Cheap Flights from Illinois to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 10:25 amORD Chicago O'Hare Intl-BNE Brisbane

35h 55m3 stops Denver Intl Los Angeles Nadi

11:40 am - 5:13 amBNE Brisbane-ORD Chicago O'Hare Intl

33h 33m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,175Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

10:26 am - 10:25 amORD Chicago O'Hare Intl-BNE Brisbane

32h 59m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

11:40 am - 12:21 amBNE Brisbane-ORD Chicago O'Hare Intl

28h 41m3 stops Nadi Los Angeles Denver Intl

$1,210Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

1:00 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 35m2 stops Los Angeles Auckland Intl

9:55 am - 8:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 42m2 stops Auckland Intl Los Angeles

$1,248Air New Zealand

Mon, Nov 2 - Mon, Nov 16

4:25 pm - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 50m1 stop Tokyo Haneda

12:25 pm - 5:20 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 55m2 stops Tokyo Haneda Los Angeles

$1,260ANA

Tue, Nov 10 - Tue, Nov 17

3:40 pm - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

11:20 am - 8:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 39m1 stop Vancouver Intl

$1,262Air Canada

Sun, Oct 18 - Sun, Nov 1

3:40 pm - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

11:20 am - 8:52 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 32m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,264Air Canada

Sun, Oct 18 - Sun, Nov 1

1:30 pm - 8:55 amORD Chicago O'Hare Intl-MEL Melbourne

26h 25m2 stops San Francisco Auckland Intl

10:20 am - 8:31 pmMEL Melbourne-ORD Chicago O'Hare Intl

26h 11m2 stops Auckland Intl San Francisco

$1,265Air New Zealand

Tue, Mar 9 - Tue, Mar 23

7:00 am - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

44h 15m2 stops Los Angeles Tokyo Haneda

9:45 pm - 7:20 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 35m1 stop Tokyo Haneda

$1,281ANA

Fri, Nov 13 - Sun, Nov 22

7:50 pm - 3:55 pmORD Chicago O'Hare Intl-ADL Adelaide

28h 35m1 stop Doha Hamad Intl

8:40 am - 2:30 pmADL Adelaide-ORD Chicago O'Hare Intl

46h 20m2 stops Melbourne Doha Hamad Intl

$1,332Qatar Airways

Tue, Oct 27 - Tue, Nov 3

7:50 pm - 3:55 pmORD Chicago O'Hare Intl-ADL Adelaide

28h 35m1 stop Doha Hamad Intl

8:40 am - 2:30 pmADL Adelaide-ORD Chicago O'Hare Intl

46h 20m2 stops Melbourne Doha Hamad Intl

$1,332Qatar Airways

Mon, Oct 26 - Tue, Nov 3

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 8:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

11:15 am - 5:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 25m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,349Multiple Airlines

Fri, Oct 2 - Wed, Oct 7

7:03 pm - 8:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 57m2 stops Los Angeles Manila Ninoy Aquino Intl

10:15 am - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 44m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,541Multiple Airlines

Mon, Sep 28 - Sat, Oct 3

5:45 pm - 7:10 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 25m1 stop Tokyo Haneda

9:45 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 55m1 stop Tokyo Haneda

$1,579ANA

Mon, Sep 28 - Wed, Oct 14

5:45 pm - 7:10 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 25m1 stop Tokyo Haneda

12:45 pm - 4:45 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

32h 00m2 stops Tokyo Haneda Los Angeles

$1,584ANA

Mon, Sep 28 - Wed, Oct 14

5:50 pm - 7:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 15m1 stop Los Angeles

1:00 pm - 9:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 30m1 stop Dallas/Fort Worth

$1,648American Airlines

Mon, Sep 28 - Wed, Oct 14

1:50 pm - 7:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 15m1 stop Los Angeles

9:25 pm - 5:00 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 35m1 stop San Francisco

$1,649American Airlines

Sun, Sep 27 - Tue, Sep 29

1:51 pm - 6:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 59m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:15 am - 8:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 15m2 stops Los Angeles Detroit Metropolitan Wayne County

$1,657Delta

Mon, Sep 28 - Wed, Oct 14

7:45 am - 6:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

32h 05m2 stops Salt Lake City Los Angeles

10:15 am - 5:50 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 35m1 stop Los Angeles

$1,657Delta

Mon, Sep 28 - Wed, Oct 14

6:25 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 30m1 stop San Francisco

10:55 am - 9:42 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 47m2 stops Auckland Intl Houston George Bush Intcntl

$1,690Air New Zealand

Mon, Sep 28 - Wed, Sep 30

6:25 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 30m1 stop San Francisco

10:55 am - 8:05 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 10m2 stops Auckland Intl Houston George Bush Intcntl

$1,708Air New Zealand

Mon, Sep 28 - Wed, Sep 30

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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

Air Canada flights from Illinois to Australia

Our best Air Canada deals on Illinois to Australia flight tickets

Air Canada

Oct 18

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD8:20 amSydney Kingsford Smith

Nov 1

SYD11:20 amSydney Kingsford Smith

25h 39m

1 stop

ORD8:59 pmChicago O'Hare Intl

$1,262

Air Canada

Oct 18

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD8:20 amSydney Kingsford Smith

Nov 1

SYD11:20 amSydney Kingsford Smith

25h 32m

2 stops

ORD8:52 pmChicago O'Hare Intl

$1,264

Air Canada

Oct 18

ORD2:15 pmChicago O'Hare Intl

26h 05m

2 stops

SYD8:20 amSydney Kingsford Smith

Nov 1

SYD11:20 amSydney Kingsford Smith

25h 32m

2 stops

ORD8:52 pmChicago O'Hare Intl

$1,306

Air New Zealand flights from Illinois to Australia

Our best Air New Zealand deals on Illinois to Australia flight tickets

Air New Zealand

Nov 2

ORD1:00 pmChicago O'Hare Intl

26h 35m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 16

SYD9:55 amSydney Kingsford Smith

27h 42m

2 stops

ORD8:37 pmChicago O'Hare Intl

$1,248

Air New Zealand

Oct 25

ORD6:55 amChicago O'Hare Intl

34h 00m

2 stops

MEL8:55 amMelbourne

Nov 9

MEL12:10 pmMelbourne

29h 49m

2 stops

ORD12:59 amChicago O'Hare Intl

$1,265

Air New Zealand

Nov 10

ORD9:57 pmChicago O'Hare Intl

41h 38m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 24

SYD7:30 amSydney Kingsford Smith

38h 31m

2 stops

ORD5:01 amChicago O'Hare Intl

$1,267

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 11/9

6:30 am-10:25 am

3 stops35h 55m

Brisbane

Mon 11/16

11:40 am-5:13 am

3 stops33h 33m

$1,175

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 10/26

10:26 am-10:25 am

3 stops32h 59m

Brisbane

Mon 11/2

11:40 am-12:21 am

3 stops28h 41m

$1,210

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/2

1:00 pm-8:35 am

2 stops26h 35m

Sydney Kingsford Smith

Mon 11/16

9:55 am-8:37 pm

2 stops27h 42m

$1,248

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 11/10

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Tue 11/17

12:25 pm-5:20 am

2 stops33h 55m

$1,260

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/18

3:40 pm-8:20 am

1 stop24h 40m

Sydney Kingsford Smith

Sun 11/1

11:20 am-8:59 pm

1 stop25h 39m

$1,262

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/18

3:40 pm-8:20 am

1 stop24h 40m

Sydney Kingsford Smith

Sun 11/1

11:20 am-8:52 pm

2 stops25h 32m

$1,264

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Tue 3/9

1:30 pm-8:55 am

2 stops26h 25m

Melbourne

Tue 3/23

10:20 am-8:31 pm

2 stops26h 11m

$1,265

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 11/13

7:00 am-8:15 pm

2 stops44h 15m

Sydney Kingsford Smith

Sun 11/22

9:45 pm-7:20 am

1 stop26h 35m

$1,281

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 10/27

7:50 pm-3:55 pm

1 stop28h 35m

Adelaide

Tue 11/3

8:40 am-2:30 pm

2 stops46h 20m

$1,332

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Mon 10/26

7:50 pm-3:55 pm

1 stop28h 35m

Adelaide

Tue 11/3

8:40 am-2:30 pm

2 stops46h 20m

$1,332

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Australia?

The month of February is, on average, the cheapest month to fly to Australia from Illinois, with most prices found around $1,217. If you aren’t able to travel during the month of February, then book flights to Australia from Illinois during January instead. Flights to Australia in January, while not as cheap as those in February, still average around $1,295.

How far in advance should I book a flight from Illinois to Australia?

You are more likely to see cheaper flights to Australia from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Illinois for as low as $1,099 on momondo.

Can stopping save me money on Illinois to Australia flights?

You could potentially save up to 15% on your flight if you consider stops on a Illinois to Australia flight.

Cheap Illinois to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Australia

Best Price Found	$520
Fastest flight time	21h 37m
Direct flights	None

The best one-way flight to Australia from Illinois in the past 72 hours is $520. The best round-trip flight deal from Illinois to Australia found on momondo in the last 72 hours is $1,175.

The fastest flight from Illinois to Australia takes 21h 37m

There are no direct flights from Illinois to Australia. There are no popular flight routes from Illinois to Australia.

Search flight deals

Frequently asked questions about flying from Illinois to Australia

When did momondo last update prices for flights from Illinois to Australia?
Prices for flights from Illinois to Australia refresh daily.
How many operators does momondo search for flights from Illinois to Australia?
As of September 2026, there are 10 operators available to choose from for flights from Illinois to Australia.
How old do you have to be to fly from Illinois to Australia?
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 layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Australia

Compare and see reviews for airlines that fly from Illinois to Australia with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,695 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 259 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.0 12,102 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,245 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,322 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 670 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,497 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,581	Free Cancellation	Rating 7.4 3,729 reviews	Search Qatar Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Australia for you.

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

Yes. All flights to Australia from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Australia?

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 help filter your options to help you make an informed choice when booking flights to Australia from Illinois.

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

Of course. momondo tracks the price of Illinois to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.