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

Philippine Airlines, Turkish Airlines, and Air New Zealand 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 November 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.

$572 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.

8:30 am - 12:25 pmORD Chicago O'Hare Intl-MEL Melbourne

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

1:45 pm - 12:54 amMEL Melbourne-ORD Chicago O'Hare Intl

28h 09m3 stops Nadi Los Angeles Denver Intl

$1,122Multiple Airlines

Fri, Dec 4 - Tue, Dec 8

7:30 am - 12:45 pmORD Chicago O'Hare Intl-MEL Melbourne

36h 15m3 stops Las Vegas Harry Reid Intl Los Angeles Nadi

1:35 pm - 7:05 amMEL Melbourne-ORD Chicago O'Hare Intl

34h 30m2 stops Nadi Los Angeles

$1,167Multiple Airlines

Mon, Feb 1 - Mon, Feb 15

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

$1,217Qatar Airways

Mon, Feb 1 - Mon, Feb 15

4:59 pm - 5:50 amORD Chicago O'Hare Intl-BNE Brisbane

20h 51m1 stop Los Angeles

1:10 pm - 10:55 pmBNE Brisbane-ORD Chicago O'Hare Intl

25h 45m1 stop Los Angeles

$1,225American Airlines

Fri, Feb 12 - Sun, Feb 28

1:23 pm - 5:50 amORD Chicago O'Hare Intl-BNE Brisbane

24h 27m1 stop Los Angeles

1:10 pm - 7:54 pmBNE Brisbane-ORD Chicago O'Hare Intl

22h 44m2 stops Los Angeles Dallas/Fort Worth

$1,229American Airlines

Fri, Feb 12 - Sun, Feb 28

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

$1,263Qatar Airways

Tue, Feb 2 - Tue, Feb 9

8:50 am - 7:45 amORD Chicago O'Hare Intl-WSI Western Sydney Intl (Nancy-Bird Walton)

30h 55m2 stops Los Angeles Auckland Intl

8:55 am - 10:36 pmWSI Western Sydney Intl (Nancy-Bird Walton)-ORD Chicago O'Hare Intl

28h 41m2 stops Auckland Intl Houston George Bush Intcntl

$1,324Air New Zealand

Wed, Mar 17 - Sat, May 22

2:14 pm - 8:55 amORD Chicago O'Hare Intl-MEL Melbourne

25h 41m2 stops Los Angeles Auckland Intl

12:10 pm - 11:17 pmMEL Melbourne-ORD Chicago O'Hare Intl

28h 07m2 stops Auckland Intl Los Angeles

$1,326Air New Zealand

Sun, Mar 7 - Sun, Mar 14

6:45 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles

8:55 am - 4:15 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 20m2 stops Auckland Intl Los Angeles

$1,415Qantas Airways

Sat, Nov 28 - Sat, Dec 5

6:45 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles

8:55 am - 3:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 04m2 stops Auckland Intl Los Angeles

$1,415Qantas Airways

Tue, Dec 29 - Sat, Jan 23

Cheap last minute flights

Enter your travel dates to find the best prices.

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

42h 35m1 stop Manila Ninoy Aquino Intl

8:40 am - 5:02 amPER Perth-ORD Chicago O'Hare Intl

34h 22m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,308Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

8:00 am - 10:15 amORD Chicago O'Hare Intl-BNE Brisbane

34h 15m2 stops Los Angeles Manila Ninoy Aquino Intl

11:35 am - 5:02 amBNE Brisbane-ORD Chicago O'Hare Intl

33h 27m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,309Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

6:55 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

32h 40m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 6:56 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 06m2 stops Auckland Intl Los Angeles

$1,341Air New Zealand

Sun, Nov 8 - Wed, Nov 18

9:35 pm - 9:50 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

55h 15m2 stops Houston George Bush Intcntl Auckland Intl

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

23h 32m2 stops Auckland Intl Los Angeles

$1,369Air New Zealand

Sat, Nov 7 - Fri, Nov 13

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

31h 46m1 stop Vancouver Intl

11:20 am - 7:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 39m1 stop Vancouver Intl

$1,494Air Canada

Sun, Nov 8 - Wed, Nov 18

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

31h 46m1 stop Vancouver Intl

11:20 am - 8:00 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

37h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,497Air Canada

Sun, Nov 8 - Wed, Nov 18

6:50 pm - 5:30 pmORD Chicago O'Hare Intl-BNE Brisbane

30h 40m1 stop Doha Hamad Intl

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

32h 35m1 stop Doha Hamad Intl

$1,539Qatar Airways

Wed, Nov 4 - Wed, Nov 11

6:50 pm - 11:20 pmORD Chicago O'Hare Intl-MEL Melbourne

35h 30m1 stop Doha Hamad Intl

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

38h 20m1 stop Doha Hamad Intl

$1,542Qatar Airways

Sun, Nov 8 - Thu, Nov 19

6:45 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles

11:10 am - 10:31 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

28h 21m1 stop Los Angeles

$1,654Qantas Airways

Mon, Nov 9 - Tue, Nov 24

1:24 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 36m1 stop Los Angeles

11:10 am - 12:01 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 51m1 stop Los Angeles

$1,654Qantas Airways

Sun, Nov 8 - Wed, Nov 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

Mar 17

ORD8:50 amChicago O'Hare Intl

30h 55m

2 stops

WSI7:45 amWestern Sydney Intl (Nancy-Bird Walton)

May 22

WSI8:55 amWestern Sydney Intl (Nancy-Bird Walton)

28h 41m

2 stops

ORD10:36 pmChicago O'Hare Intl

$1,324

Air New Zealand

Dec 1

ORD6:15 pmChicago O'Hare Intl

58h 35m

2 stops

SYD9:50 pmSydney Kingsford Smith

Jan 13

SYD9:55 amSydney Kingsford Smith

27h 45m

2 stops

ORD8:40 pmChicago O'Hare Intl

$1,326

Air New Zealand

Feb 2

ORD12:40 pmChicago O'Hare Intl

26h 55m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 18

SYD11:50 amSydney Kingsford Smith

25h 50m

2 stops

ORD8:40 pmChicago O'Hare Intl

$1,328

Turkish Airlines flights from Chicago to Australia

Our best Turkish Airlines deals on Chicago to Australia flight tickets

Turkish Airlines

Nov 16

ORD8:15 pmChicago O'Hare Intl

54h 10m

2 stops

SYD7:25 pmSydney Kingsford Smith

Nov 21

SYD9:35 pmSydney Kingsford Smith

37h 45m

2 stops

ORD6:20 pmChicago O'Hare Intl

$1,490

Turkish Airlines

Nov 15

ORD11:45 amChicago O'Hare Intl

38h 40m

2 stops

SYD7:25 pmSydney Kingsford Smith

Nov 19

SYD9:35 pmSydney Kingsford Smith

53h 25m

2 stops

ORD10:00 amChicago O'Hare Intl

$1,527

Turkish Airlines

Nov 8

ORD11:45 amChicago O'Hare Intl

38h 40m

2 stops

SYD7:25 pmSydney Kingsford Smith

Nov 14

SYD9:35 pmSydney Kingsford Smith

53h 25m

2 stops

ORD10:00 amChicago O'Hare Intl

$1,575

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Fri 12/4

8:30 am-12:25 pm

3 stops34h 55m

Melbourne

Tue 12/8

1:45 pm-12:54 am

3 stops28h 09m

$1,122

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 2/1

7:30 am-12:45 pm

3 stops36h 15m

Melbourne

Mon 2/15

1:35 pm-7:05 am

2 stops34h 30m

$1,167

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

$1,217

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Fri 2/12

4:59 pm-5:50 am

1 stop20h 51m

Brisbane

Sun 2/28

1:10 pm-10:55 pm

1 stop25h 45m

$1,225

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Fri 2/12

1:23 pm-5:50 am

1 stop24h 27m

Brisbane

Sun 2/28

1:10 pm-7:54 pm

2 stops22h 44m

$1,229

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

Tue 2/9

5:10 pm-2:30 pm

1 stop38h 20m

$1,263

ChicagoSydney

ORD Chicago O'Hare Intl - WSI Western Sydney Intl (Nancy-Bird Walton)

ORDWSI

Chicago O'Hare Intl

Wed 3/17

8:50 am-7:45 am

2 stops30h 55m

Western Sydney Intl (Nancy-Bird Walton)

Sat 5/22

8:55 am-10:36 pm

2 stops28h 41m

$1,324

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Sun 3/7

2:14 pm-8:55 am

2 stops25h 41m

Melbourne

Sun 3/14

12:10 pm-11:17 pm

2 stops28h 07m

$1,326

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 11/28

6:45 pm-9:00 am

1 stop21h 15m

Sydney Kingsford Smith

Sat 12/5

8:55 am-4:15 pm

2 stops24h 20m

$1,415

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 12/29

6:45 pm-9:00 am

1 stop21h 15m

Sydney Kingsford Smith

Sat 1/23

8:55 am-3:59 pm

2 stops24h 04m

$1,415

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 January is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $1,193. If you aren’t able to travel during the month of January, then book flights to Australia from Chicago during February instead. Flights to Australia in February, while not as cheap as those in January, still average around $1,271.

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 $1,500 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 $1,081 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	$572
Fastest flight time	20h 10m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $572. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,122.

The fastest flight from Chicago to Australia takes 20h 10m

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 November 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 8,697 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,853 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 262 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $894	Free Cancellation	Rating 7.5 1,122 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,021	Free Cancellation	Rating 7.0 12,233 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,144	Free Cancellation	Rating 7.3 10,458 reviews	Search United Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,339 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,218	Free Cancellation	Rating 7.4 3,712 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,279	Free Cancellation	Rating 8.0 681 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,537 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.