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 47% 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?

ANA, Delta, and American Airlines 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 September 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.

$516 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.

10:45 pm - 7:30 amORD Chicago O'Hare Intl-MEL Melbourne

39h 45m1 stop Manila Ninoy Aquino Intl

9:20 am - 4:55 pmMEL Melbourne-ORD Chicago O'Hare Intl

24h 35m1 stop Manila Ninoy Aquino Intl

$1,169Philippine Airlines

Mon, Feb 22 - Mon, Mar 8

3:40 pm - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

24h 25m1 stop Vancouver Intl

10:45 am - 3:37 pmBNE Brisbane-ORD Chicago O'Hare Intl

19h 52m1 stop Vancouver Intl

$1,209Air Canada

Sun, Oct 18 - Sun, Nov 1

7:45 pm - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

20h 20m1 stop Vancouver Intl

10:45 am - 8:52 pmBNE Brisbane-ORD Chicago O'Hare Intl

25h 07m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,211Air Canada

Sun, Oct 18 - Sun, Nov 1

6:59 am - 7:30 amORD Chicago O'Hare Intl-MEL Melbourne

31h 31m2 stops Los Angeles Manila Ninoy Aquino Intl

9:20 am - 5:00 amMEL Melbourne-ORD Chicago O'Hare Intl

35h 40m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,220Multiple Airlines

Thu, Mar 11 - Tue, Mar 23

7:29 am - 10:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 06m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 10:00 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 05m2 stops Auckland Intl Los Angeles

$1,235Air New Zealand

Mon, Nov 2 - Mon, Nov 16

9:15 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 20m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 9:46 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 56m2 stops Auckland Intl Los Angeles

$1,235Air New Zealand

Mon, Feb 1 - Wed, Mar 3

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

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

34h 50m1 stop Tokyo Haneda

9:45 pm - 2:38 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 53m2 stops Tokyo Haneda Washington, D.C. Dulles Intl

$1,274ANA

Sun, Nov 8 - Tue, Nov 24

6:50 pm - 6:45 pmORD Chicago O'Hare Intl-PER Perth

33h 55m1 stop Doha Hamad Intl

1:20 pm - 2:30 pmPER Perth-ORD Chicago O'Hare Intl

39h 10m2 stops Brisbane Doha Hamad Intl

$1,415Qatar Airways

Sun, Jan 31 - Sun, Feb 14

6:50 pm - 10:00 pmORD Chicago O'Hare Intl-PER Perth

37h 10m2 stops Doha Hamad Intl Melbourne

10:45 pm - 2:30 pmPER Perth-ORD Chicago O'Hare Intl

29h 45m1 stop Doha Hamad Intl

$1,425Qatar Airways

Wed, Nov 11 - Sat, Nov 21

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

11:30 am - 5:02 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 32m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,324Multiple Airlines

Sun, Sep 27 - Mon, Nov 2

11:15 am - 1:25 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 10m3 stops Orlando Los Angeles Nadi

1:15 pm - 12:45 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 30m3 stops Nadi Los Angeles Dallas/Fort Worth

$1,447Multiple Airlines

Fri, Sep 25 - Fri, Oct 2

6:06 pm - 7:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 54m1 stop Los Angeles

2:05 pm - 8:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 32m2 stops Auckland Intl Los Angeles

$1,547Air New Zealand

Sun, Sep 27 - Mon, Nov 2

3:00 pm - 7:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 00m1 stop Los Angeles

9:55 am - 8:22 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 27m2 stops Auckland Intl San Francisco

$1,570Air New Zealand

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

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

2:50 pm - 6:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 00m1 stop Los Angeles

10:40 am - 3:45 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 05m1 stop Los Angeles

$1,612Delta

Sun, Sep 27 - Mon, Nov 2

1:00 pm - 6:50 amMDW Chicago Midway-SYD Sydney Kingsford Smith

26h 50m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 10:33 pmSYD Sydney Kingsford Smith-MDW Chicago Midway

28h 53m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,617Delta

Sun, Sep 27 - Mon, Nov 2

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

$1,716Air Canada

Fri, Sep 25 - Fri, Oct 2

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

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

10:20 am - 7:51 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

37h 31m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,823Air Canada

Mon, Sep 28 - Wed, Oct 14

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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

Nov 2

ORD7:29 amChicago O'Hare Intl

34h 06m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 16

SYD9:55 amSydney Kingsford Smith

29h 05m

2 stops

ORD10:00 pmChicago O'Hare Intl

$1,235

Air New Zealand

Nov 8

ORD9:21 amChicago O'Hare Intl

30h 14m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 18

SYD11:50 amSydney Kingsford Smith

24h 06m

2 stops

ORD6:56 pmChicago O'Hare Intl

$1,239

Air New Zealand

Nov 14

ORD7:55 pmChicago O'Hare Intl

43h 40m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 25

SYD9:55 amSydney Kingsford Smith

30h 32m

2 stops

ORD11:27 pmChicago O'Hare Intl

$1,244

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Nov 3

ORD3:30 pmChicago O'Hare Intl

25h 05m

1 stop

SYD9:35 amSydney Kingsford Smith

Nov 10

SYD11:20 amSydney Kingsford Smith

25h 39m

1 stop

ORD7:59 pmChicago O'Hare Intl

$1,261

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

Nov 3

ORD1:55 pmChicago O'Hare Intl

26h 40m

2 stops

SYD9:35 amSydney Kingsford Smith

Nov 10

SYD11:20 amSydney Kingsford Smith

25h 39m

1 stop

ORD7:59 pmChicago O'Hare Intl

$1,263

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 2/22

10:45 pm-7:30 am

1 stop39h 45m

Melbourne

Mon 3/8

9:20 am-4:55 pm

1 stop24h 35m

$1,169

Quickest round-trip

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Sun 10/18

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Sun 11/1

10:45 am-3:37 pm

1 stop19h 52m

$1,209

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Sun 10/18

7:45 pm-7:05 am

1 stop20h 20m

Brisbane

Sun 11/1

10:45 am-8:52 pm

2 stops25h 07m

$1,211

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Thu 3/11

6:59 am-7:30 am

2 stops31h 31m

Melbourne

Tue 3/23

9:20 am-5:00 am

2 stops35h 40m

$1,220

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/2

7:29 am-10:35 am

2 stops34h 06m

Sydney Kingsford Smith

Mon 11/16

9:55 am-10:00 pm

2 stops29h 05m

$1,235

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 2/1

9:15 am-8:35 am

2 stops30h 20m

Sydney Kingsford Smith

Wed 3/3

11:50 am-9:46 pm

2 stops26h 56m

$1,235

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 11/8

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Tue 11/24

9:45 pm-2:38 pm

2 stops33h 53m

$1,274

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Sun 1/31

6:50 pm-6:45 pm

1 stop33h 55m

Perth

Sun 2/14

1:20 pm-2:30 pm

2 stops39h 10m

$1,415

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Wed 11/11

6:50 pm-10:00 pm

2 stops37h 10m

Perth

Sat 11/21

10:45 pm-2:30 pm

1 stop29h 45m

$1,425

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 $1,237. 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 $1,309.

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 $1,424 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 $1,099 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	$516
Fastest flight time	21h 06m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $516. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,169.

The fastest flight from Chicago to Australia takes 21h 06m

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 September 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 8,595 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,665 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 1,101 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.0 12,081 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,226 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,319 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 1,490 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,581	Free Cancellation	Rating 7.3 3,731 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.