What airlines fly to Australia?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Australia from Chicago according to our data. Qantas Airways is the first choice among our users, with 48% 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 Chicago to Australia?

Alaska Airlines, Turkish Airlines, and Air Canada are the most popular carriers operating from Chicago to Australia

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

Prices for flights from Chicago to Australia were last updated today.

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

The number of operators available for flights from Chicago to Australia is 10 as of October 2026.

How old do you have to be to fly from Chicago 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 Chicago to Australia.

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

The travel and health documents required for your trip to Australia 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 license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$570 Cheap Flights from Chicago to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

5:10 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

38h 20m1 stop Doha Hamad Intl

$1,175Qatar Airways

Mon, Feb 1 - Mon, Feb 15

10:45 pm - 7:20 amORD Chicago O'Hare Intl-PER Perth

42h 35m1 stop Manila Ninoy Aquino Intl

8:35 am - 4:55 pmPER Perth-ORD Chicago O'Hare Intl

22h 20m1 stop Manila Ninoy Aquino Intl

$1,187Philippine Airlines

Wed, Feb 24 - Mon, Mar 1

6:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

5:10 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

38h 20m1 stop Doha Hamad Intl

$1,223Qatar Airways

Mon, Feb 1 - Mon, Feb 15

7:20 pm - 5:30 pmORD Chicago O'Hare Intl-BNE Brisbane

31h 10m1 stop Doha Hamad Intl

9:55 pm - 2:30 pmBNE Brisbane-ORD Chicago O'Hare Intl

32h 35m1 stop Doha Hamad Intl

$1,263Multiple Airlines

Thu, Oct 22 - Wed, Nov 4

9:21 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 14m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 8:35 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 40m2 stops Auckland Intl Los Angeles

$1,292Air New Zealand

Tue, Nov 3 - Tue, Nov 10

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

26h 35m2 stops Los Angeles Auckland Intl

11:50 am - 8:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 47m2 stops Auckland Intl Los Angeles

$1,292Air New Zealand

Mon, Nov 2 - Mon, Nov 9

8:49 am - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 46m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,308Air Canada

Mon, Nov 23 - Tue, Dec 8

8:49 am - 8:45 amORD Chicago O'Hare Intl-BNE Brisbane

31h 56m1 stop Vancouver Intl

10:45 am - 7:59 pmBNE Brisbane-ORD Chicago O'Hare Intl

25h 14m1 stop Vancouver Intl

$1,309Air Canada

Sun, Nov 15 - Sun, Nov 22

5:45 pm - 9:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Tokyo Haneda

8:55 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 45m1 stop Tokyo Haneda

$1,449ANA

Sun, Apr 4 - Mon, Apr 12

5:25 pm - 10:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Tokyo Haneda

8:55 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 45m1 stop Tokyo Haneda

$1,480ANA

Mon, Mar 15 - Wed, Apr 14

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

11:15 am - 5:00 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 45m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,347Multiple Airlines

Fri, Oct 9 - Mon, Oct 19

6:00 am - 7:30 amORD Chicago O'Hare Intl-MEL Melbourne

33h 30m2 stops Los Angeles Manila Ninoy Aquino Intl

9:00 am - 5:00 amMEL Melbourne-ORD Chicago O'Hare Intl

36h 00m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,348Multiple Airlines

Fri, Oct 9 - Wed, Oct 21

2:00 pm - 8:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 00m1 stop Los Angeles

7:30 am - 12:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 29m2 stops Auckland Intl Los Angeles

$1,584Air New Zealand

Sun, Oct 11 - Sun, Nov 22

9:40 pm - 7:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

42h 15m1 stop San Francisco

7:05 pm - 9:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

42h 32m2 stops Auckland Intl San Francisco

$1,591Air New Zealand

Sat, Oct 10 - Sun, Oct 18

10:30 am - 8:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

29h 30m1 stop Los Angeles

10:30 am - 7:05 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 35m1 stop Los Angeles

$1,650United Airlines

Sun, Oct 11 - Mon, Oct 19

3:35 pm - 7:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 20m1 stop San Francisco

11:20 am - 2:50 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

19h 30m1 stop San Francisco

$1,650United Airlines

Wed, Oct 7 - Wed, Oct 21

2:45 pm - 8:50 amORD Chicago O'Hare Intl-MEL Melbourne

26h 05m1 stop Los Angeles

11:00 am - 11:47 pmMEL Melbourne-ORD Chicago O'Hare Intl

28h 47m1 stop Los Angeles

$1,651Delta

Fri, Oct 9 - Wed, Oct 21

7:35 am - 7:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

32h 15m2 stops Salt Lake City Los Angeles

10:15 am - 1:38 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

19h 23m1 stop Los Angeles

$1,655Delta

Sun, Oct 11 - Tue, Oct 20

1:50 pm - 7:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 40m1 stop Los Angeles

10:10 am - 4:51 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 41m1 stop Los Angeles

$1,679Qantas Airways

Fri, Oct 9 - Mon, Oct 19

8:30 pm - 8:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 35m1 stop Los Angeles

10:10 am - 4:51 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 41m1 stop Los Angeles

$1,711Qantas Airways

Sat, Oct 10 - Sun, Oct 18

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Air New Zealand flights from Chicago to Australia

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

Air New Zealand

Dec 8

ORD3:52 pmChicago O'Hare Intl

26h 08m

2 stops

BNE10:00 amBrisbane

Jan 11

BNE8:20 amBrisbane

28h 20m

2 stops

ORD8:40 pmChicago O'Hare Intl

$1,265

Air New Zealand

Oct 26

ORD10:25 amChicago O'Hare Intl

29h 35m

2 stops

BNE7:00 amBrisbane

Nov 9

BNE8:20 amBrisbane

28h 17m

2 stops

ORD8:37 pmChicago O'Hare Intl

$1,281

Air New Zealand

Oct 26

ORD10:25 amChicago O'Hare Intl

29h 35m

2 stops

BNE7:00 amBrisbane

Nov 2

BNE8:20 amBrisbane

28h 17m

2 stops

ORD8:37 pmChicago O'Hare Intl

$1,290

Qatar Airways flights from Chicago to Australia

Our best Qatar Airways deals on Chicago to Australia flight tickets

Qatar Airways

Feb 1

ORD6:50 pmChicago O'Hare Intl

30h 00m

1 stop

MEL5:50 pmMelbourne

Feb 15

MEL5:10 pmMelbourne

38h 20m

1 stop

ORD2:30 pmChicago O'Hare Intl

$1,175

Qatar Airways

Feb 1

ORD6:50 pmChicago O'Hare Intl

30h 00m

1 stop

MEL5:50 pmMelbourne

Feb 15

MEL5:10 pmMelbourne

38h 20m

1 stop

ORD2:30 pmChicago O'Hare Intl

$1,223

Qatar Airways

Mar 22

ORD7:50 pmChicago O'Hare Intl

30h 00m

1 stop

MEL5:50 pmMelbourne

Apr 5

MEL3:10 pmMelbourne

38h 55m

1 stop

ORD3:05 pmChicago O'Hare Intl

$1,225

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 2/1

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Mon 2/15

5:10 pm-2:30 pm

1 stop38h 20m

$1,175

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Wed 2/24

10:45 pm-7:20 am

1 stop42h 35m

Perth

Mon 3/1

8:35 am-4:55 pm

1 stop22h 20m

$1,187

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 2/1

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Mon 2/15

5:10 pm-2:30 pm

1 stop38h 20m

$1,223

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Thu 10/22

7:20 pm-5:30 pm

1 stop31h 10m

Brisbane

Wed 11/4

9:55 pm-2:30 pm

1 stop32h 35m

$1,263

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 11/3

9:21 am-8:35 am

2 stops30h 14m

Sydney Kingsford Smith

Tue 11/10

9:55 am-8:35 pm

2 stops27h 40m

$1,292

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 11/9

11:50 am-8:37 pm

2 stops25h 47m

$1,292

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/23

8:49 am-9:35 am

1 stop31h 46m

Sydney Kingsford Smith

Tue 12/8

11:20 am-2:37 pm

1 stop20h 17m

$1,308

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Sun 11/15

8:49 am-8:45 am

1 stop31h 56m

Brisbane

Sun 11/22

10:45 am-7:59 pm

1 stop25h 14m

$1,309

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 4/4

5:45 pm-9:25 am

1 stop24h 40m

Sydney Kingsford Smith

Mon 4/12

8:55 pm-8:40 am

1 stop26h 45m

$1,449

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 3/15

5:25 pm-10:30 am

1 stop25h 05m

Sydney Kingsford Smith

Wed 4/14

8:55 pm-8:40 am

1 stop26h 45m

$1,480

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 Chicago 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

What is the cheapest month to fly to Australia?

The month of February is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $1,223. If you aren’t able to travel during the month of February, then book flights to Australia from Chicago during January instead. Flights to Australia in January, while not as cheap as those in February, still average around $1,294.

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

You are more likely to see cheaper flights to Australia from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago for as low as $1,055 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 9% on your flight if you consider stops on a Chicago to Australia flight.

Cheap Chicago to Australia flight deals and tips

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

Best Price Found	$570
Fastest flight time	20h 30m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $570. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,175.

The fastest flight from Chicago to Australia takes 20h 30m

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

Search flight deals

Frequently asked questions about flying from Chicago to Australia

When did momondo last update prices for flights from Chicago to Australia?
Prices for flights from Chicago to Australia were last updated today.
How many operators does momondo search for flights from Chicago to Australia?
The number of operators available for flights from Chicago to Australia is 10 as of October 2026.
How old do you have to be to fly from Chicago 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 Chicago to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents required for your trip to Australia 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 license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Chicago to Australia

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,634 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,729 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 1,103 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.0 12,127 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,288 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,320 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,510 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,581	Free Cancellation	Rating 7.3 3,724 reviews	Search Qatar Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Chicago.

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

Flights from Chicago to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Australia.

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

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