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

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

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.

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.

$590 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.

10:26 am - 10:35 amORD Chicago O'Hare Intl-BNE Brisbane

33h 09m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

11:50 am - 11:51 amBNE Brisbane-ORD Chicago O'Hare Intl

39h 01m3 stops Nadi Los Angeles Atlanta Hartsfield-Jackson

$1,078Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

6:30 am - 12:00 pmORD Chicago O'Hare Intl-MEL Melbourne

38h 30m3 stops Denver Intl Los Angeles Nadi

1:25 pm - 9:20 amMEL Melbourne-ORD Chicago O'Hare Intl

34h 55m3 stops Nadi Los Angeles Atlanta Hartsfield-Jackson

$1,092Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

12:45 pm - 7:00 amORD Chicago O'Hare Intl-BNE Brisbane

26h 15m2 stops Los Angeles Auckland Intl

8:20 am - 8:22 pmBNE Brisbane-ORD Chicago O'Hare Intl

28h 02m2 stops Auckland Intl Los Angeles

$1,222Air New Zealand

Mon, Feb 1 - Tue, Feb 9

4:05 pm - 10:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 30m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 7:14 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 24m2 stops Auckland Intl Houston George Bush Intcntl

$1,224Air New Zealand

Tue, Jan 26 - Tue, Feb 9

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

24h 40m1 stop Vancouver Intl

9:20 am - 2:43 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 23m1 stop Vancouver Intl

$1,248Air Canada

Sun, Aug 30 - Tue, Sep 15

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

24h 40m1 stop Vancouver Intl

9:20 am - 2:43 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 23m1 stop Vancouver Intl

$1,251Air Canada

Wed, Sep 23 - Wed, Sep 30

5:45 pm - 8:10 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

$1,273ANA

Sun, Oct 18 - Sat, Oct 24

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

$1,273ANA

Sun, Nov 8 - Sat, Nov 14

7:20 pm - 11:55 pmORD Chicago O'Hare Intl-PER Perth

39h 35m2 stops Doha Hamad Intl Brisbane

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

29h 45m1 stop Doha Hamad Intl

$1,373Qatar Airways

Tue, Oct 20 - Mon, Nov 2

6:50 pm - 10:25 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 35m2 stops Doha Hamad Intl Brisbane

3:50 pm - 2:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

39h 40m1 stop Doha Hamad Intl

$1,376Qatar Airways

Tue, Jan 26 - Tue, Feb 9

Cheap last minute flights

Enter your travel dates to find the best prices.

4:11 pm - 8:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 34m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 12:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

30h 04m2 stops Auckland Intl Houston George Bush Intcntl

$1,331Air New Zealand

Sat, Aug 22 - Fri, Sep 4

7:50 pm - 8:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 55m2 stops Los Angeles Auckland Intl

9:55 am - 9:34 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 39m2 stops Auckland Intl San Francisco

$1,391Air New Zealand

Sat, Aug 22 - Fri, Sep 4

9:20 pm - 7:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 10m1 stop Los Angeles

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

27h 09m1 stop Los Angeles

$1,427Multiple Airlines

Fri, Aug 21 - Wed, Aug 26

9:20 am - 7:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 10m2 stops Dallas/Fort Worth Los Angeles

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

27h 09m1 stop Los Angeles

$1,485Multiple Airlines

Sat, Aug 22 - Wed, Aug 26

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

34h 25m1 stop Tokyo Haneda

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

26h 45m1 stop Tokyo Haneda

$1,556ANA

Sat, Aug 22 - Fri, Sep 4

8:50 am - 9:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 35m2 stops Los Angeles Tokyo Haneda

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

26h 45m1 stop Tokyo Haneda

$1,560ANA

Sat, Aug 22 - Fri, Sep 4

3:22 pm - 7:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 43m1 stop Los Angeles

9:25 pm - 5:13 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 48m1 stop San Francisco

$1,608American Airlines

Fri, Aug 21 - Sun, Aug 23

12:45 pm - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Edmonton Vancouver Intl

9:20 am - 8:05 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,635Air Canada

Sat, Aug 22 - Fri, Sep 4

5:00 am - 7:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 20m2 stops Denver Intl Vancouver Intl

9:20 am - 5:01 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 41m2 stops Vancouver Intl San Francisco

$1,635Air Canada

Thu, Aug 20 - Wed, Aug 26

2:57 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 58m1 stop Dallas/Fort Worth

9:25 pm - 5:13 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 48m1 stop San Francisco

$1,658American Airlines

Wed, Aug 19 - Fri, Aug 21

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

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Nov 15

ORD4:25 pmChicago O'Hare Intl

25h 05m

1 stop

SYD10:30 amSydney Kingsford Smith

Nov 26

SYD9:45 pmSydney Kingsford Smith

26h 35m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,275

ANA

Nov 7

ORD7:00 amChicago O'Hare Intl

44h 15m

2 stops

SYD8:15 pmSydney Kingsford Smith

Nov 13

SYD12:25 pmSydney Kingsford Smith

33h 55m

2 stops

ORD5:20 amChicago O'Hare Intl

$1,277

ANA

Nov 1

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Nov 15

SYD12:25 pmSydney Kingsford Smith

35h 55m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,278

Philippine Airlines flights from Chicago to Australia

Our best Philippine Airlines deals on Chicago to Australia flight tickets

Philippine Airlines

Feb 10

ORD10:45 pmChicago O'Hare Intl

42h 05m

1 stop

SYD9:50 amSydney Kingsford Smith

Feb 21

SYD11:30 amSydney Kingsford Smith

46h 25m

1 stop

ORD4:55 pmChicago O'Hare Intl

$1,303

Philippine Airlines

Nov 18

ORD10:45 pmChicago O'Hare Intl

39h 45m

1 stop

MEL7:30 amMelbourne

Nov 25

MEL9:20 amMelbourne

24h 35m

1 stop

ORD4:55 pmChicago O'Hare Intl

$1,321

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 9/28

10:26 am-10:35 am

3 stops33h 09m

Brisbane

Mon 10/5

11:50 am-11:51 am

3 stops39h 01m

$1,078

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Wed 9/23

6:30 am-12:00 pm

3 stops38h 30m

Melbourne

Wed 9/30

1:25 pm-9:20 am

3 stops34h 55m

$1,092

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 2/1

12:45 pm-7:00 am

2 stops26h 15m

Brisbane

Tue 2/9

8:20 am-8:22 pm

2 stops28h 02m

$1,222

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 1/26

4:05 pm-10:35 am

2 stops25h 30m

Sydney Kingsford Smith

Tue 2/9

11:50 am-7:14 pm

2 stops24h 24m

$1,224

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 8/30

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Tue 9/15

9:20 am-2:43 pm

1 stop20h 23m

$1,248

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 9/23

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Wed 9/30

9:20 am-2:43 pm

1 stop20h 23m

$1,251

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/18

5:45 pm-8:10 pm

1 stop34h 25m

Sydney Kingsford Smith

Sat 10/24

12:45 pm-4:45 am

2 stops32h 00m

$1,273

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

Sat 11/14

12:25 pm-5:20 am

2 stops33h 55m

$1,273

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Tue 10/20

7:20 pm-11:55 pm

2 stops39h 35m

Perth

Mon 11/2

10:45 pm-2:30 pm

1 stop29h 45m

$1,373

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 1/26

6:50 pm-10:25 pm

2 stops34h 35m

Sydney Kingsford Smith

Tue 2/9

3:50 pm-2:30 pm

1 stop39h 40m

$1,376

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 $1,293. 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 $1,432 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 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

Best Price Found	$567
Fastest flight time	21h 37m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $567. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,078.

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

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 8,503 reviews	Search Delta flights
Air Canada	PriceFrom $649	Free Cancellation	Rating 7.1 11,488 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 254 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,083 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $839	Free Cancellation	Rating 7.1 11,952 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,298 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 662 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,391	Free Cancellation	Rating 7.4 3,738 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,453 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.