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 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 Chicago to Australia?

Etihad Airways, Turkish Airlines, and Delta 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 August 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.

$599 Cheap Flights from Chicago to Australia in 2026

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.

9:20 am - 11:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 30m3 stops Dallas/Fort Worth Los Angeles Los Angeles Nadi

6:15 am - 11:51 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

44h 36m3 stops Nadi Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,221Multiple Airlines

Tue, Sep 1 - Tue, Sep 8

2:00 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 35m2 stops Los Angeles Los Angeles Auckland Intl

11:50 am - 6:54 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 04m2 stops Auckland Intl Los Angeles Los Angeles

$1,223Air New Zealand

Wed, Nov 25 - Wed, Dec 2

2:10 pm - 10:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 25m2 stops Los Angeles Los Angeles Auckland Intl

9:55 am - 6:54 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 59m2 stops Auckland Intl Los Angeles Los Angeles

$1,223Air New Zealand

Mon, Feb 1 - Wed, Mar 3

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

30h 00m1 stop Doha Hamad Intl

11:40 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

31h 50m1 stop Doha Hamad Intl

$1,225Qatar Airways

Mon, Nov 2 - Wed, Nov 11

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

$1,230Multiple Airlines

Tue, Feb 2 - Wed, Feb 17

11:00 am - 7:10 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

41h 10m2 stops New York LaGuardia Tokyo Haneda

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

26h 55m1 stop Tokyo Haneda

$1,240ANA

Sun, Sep 27 - Mon, Oct 12

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

$1,241ANA

Sun, Sep 27 - Mon, Oct 12

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

31h 10m1 stop Doha Hamad Intl

10:10 pm - 3:05 pmBNE Brisbane-ORD Chicago O'Hare Intl

31h 55m1 stop Doha Hamad Intl

$1,246Qatar Airways

Mon, Sep 7 - Mon, Sep 14

8:45 am - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 35m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 8:12 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 52m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,299Air Canada

Wed, Sep 9 - Wed, Sep 16

3:40 pm - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

9:20 am - 8:12 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 52m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,300Air Canada

Wed, Sep 9 - Wed, Sep 16

Cheap last minute flights

Enter your travel dates to find the best prices.

3:40 pm - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

9:20 am - 2:36 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,322Air Canada

Tue, Aug 11 - Tue, Aug 25

3:40 pm - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

9:20 am - 2:36 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,322Air Canada

Mon, Aug 10 - Mon, Aug 24

9:13 pm - 7:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 17m1 stop Los Angeles Los Angeles

5:50 pm - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m1 stop Los Angeles Los Angeles

$1,366Multiple Airlines

Tue, Aug 11 - Sun, Aug 23

9:13 pm - 7:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 17m1 stop Los Angeles Los Angeles

5:50 pm - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m1 stop Los Angeles Los Angeles

$1,369Multiple Airlines

Tue, Aug 11 - Sun, Aug 23

7:20 pm - 10:05 pmORD Chicago O'Hare Intl-MEL Melbourne

35h 45m1 stop Doha Hamad Intl

11:45 pm - 3:05 pmMEL Melbourne-ORD Chicago O'Hare Intl

31h 20m1 stop Doha Hamad Intl

$1,455Qatar Airways

Wed, Aug 12 - Thu, Oct 15

7:20 pm - 10:05 pmORD Chicago O'Hare Intl-MEL Melbourne

35h 45m1 stop Doha Hamad Intl

11:45 pm - 3:05 pmMEL Melbourne-ORD Chicago O'Hare Intl

31h 20m1 stop Doha Hamad Intl

$1,455Qatar Airways

Wed, Aug 12 - Tue, Oct 13

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

24h 40m1 stop Tokyo Haneda

12:45 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 55m1 stop Tokyo Haneda

$1,604ANA

Wed, Aug 12 - Thu, Oct 15

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

24h 40m1 stop Tokyo Haneda

12:45 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 55m1 stop Tokyo Haneda

$1,604ANA

Wed, Aug 12 - Wed, Oct 14

7:00 am - 8:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 45m2 stops Los Angeles Los Angeles Auckland Intl

7:20 pm - 12:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

44h 39m2 stops Auckland Intl Houston George Bush Intcntl

$1,748Air New Zealand

Sun, Aug 9 - Tue, Aug 11

7:00 am - 8:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 45m2 stops Los Angeles Los Angeles Auckland Intl

7:20 pm - 12:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

44h 39m2 stops Auckland Intl Houston George Bush Intcntl

$1,750Air New Zealand

Sun, Aug 9 - Tue, Aug 11

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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

Oct 21

ORD2:10 pmChicago O'Hare Intl

26h 35m

2 stops

SYD8:45 amSydney Kingsford Smith

Nov 9

SYD9:55 amSydney Kingsford Smith

26h 01m

2 stops

ORD6:56 pmChicago O'Hare Intl

$1,223

Air New Zealand

Sep 1

ORD4:45 pmChicago O'Hare Intl

26h 55m

2 stops

SYD10:40 amSydney Kingsford Smith

Sep 8

SYD9:55 amSydney Kingsford Smith

26h 40m

2 stops

ORD9:35 pmChicago O'Hare Intl

$1,224

Air New Zealand

Jan 23

ORD9:30 pmChicago O'Hare Intl

42h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Jan 27

SYD9:55 amSydney Kingsford Smith

27h 27m

2 stops

ORD8:22 pmChicago O'Hare Intl

$1,233

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Sep 27

ORD11:00 amChicago O'Hare Intl

41h 10m

2 stops

SYD7:10 pmSydney Kingsford Smith

Oct 12

SYD9:45 pmSydney Kingsford Smith

26h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,240

ANA

Sep 27

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Oct 12

SYD9:45 pmSydney Kingsford Smith

26h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,241

ANA

Sep 27

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Oct 12

SYD9:45 pmSydney Kingsford Smith

26h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,243

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 9/1

9:20 am-11:50 am

3 stops35h 30m

Sydney Kingsford Smith

Tue 9/8

6:15 am-11:51 am

3 stops44h 36m

$1,221

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 11/25

2:00 pm-8:35 am

2 stops25h 35m

Sydney Kingsford Smith

Wed 12/2

11:50 am-6:54 pm

2 stops24h 04m

$1,223

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 2/1

2:10 pm-10:35 am

2 stops27h 25m

Sydney Kingsford Smith

Wed 3/3

9:55 am-6:54 pm

2 stops25h 59m

$1,223

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 11/2

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Wed 11/11

11:40 pm-2:30 pm

1 stop31h 50m

$1,225

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Tue 2/2

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Wed 2/17

5:10 pm-2:30 pm

1 stop38h 20m

$1,230

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 9/27

11:00 am-7:10 pm

2 stops41h 10m

Sydney Kingsford Smith

Mon 10/12

9:45 pm-8:40 am

1 stop26h 55m

$1,240

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 9/27

5:45 pm-7:10 pm

1 stop34h 25m

Sydney Kingsford Smith

Mon 10/12

9:45 pm-8:40 am

1 stop26h 55m

$1,241

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 9/7

7:20 pm-5:30 pm

1 stop31h 10m

Brisbane

Mon 9/14

10:10 pm-3:05 pm

1 stop31h 55m

$1,246

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 9/9

8:45 am-7:20 am

2 stops31h 35m

Sydney Kingsford Smith

Wed 9/16

9:20 am-8:12 pm

2 stops25h 52m

$1,299

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 9/9

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Wed 9/16

9:20 am-8:12 pm

2 stops25h 52m

$1,300

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 $1,276. If you aren’t able to travel during the month of February, then book flights to Australia from Chicago during June instead. Flights to Australia in June, while not as cheap as those in February, still average around $1,318.

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 $1,461 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 $1,162 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 14% 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

Fastest flight time	20h 28m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 28m

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 August 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 $261	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,449 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 251 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,079 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.1 11,883 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,085 reviews	Search United Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,293 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,740 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 659 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,441 reviews	Search Cathay Pacific 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.