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?

Air Canada, 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.

$532 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.

3:50 pm - 6:30 amORD Chicago O'Hare Intl-BNE Brisbane

23h 40m1 stop Dallas/Fort Worth

1:10 pm - 5:59 pmBNE Brisbane-ORD Chicago O'Hare Intl

20h 49m1 stop Los Angeles Los Angeles

$1,092Qantas Airways

Mon, Oct 26 - Mon, Nov 2

11:05 am - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

29h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,198Air Canada

Tue, Oct 20 - Tue, Oct 27

3:30 pm - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Vancouver Intl

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

20h 17m1 stop Vancouver Intl

$1,198Air Canada

Mon, Nov 16 - Mon, Nov 30

6:30 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 05m3 stops Denver Intl Los Angeles Los Angeles Auckland Intl

11:50 am - 5:13 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 23m3 stops Auckland Intl Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,205Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

6:30 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 05m3 stops Denver Intl Los Angeles Los Angeles Auckland Intl

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

40h 56m3 stops Auckland Intl Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,208Multiple Airlines

Mon, Nov 16 - Thu, Dec 10

1:55 pm - 7:00 amORD Chicago O'Hare Intl-BNE Brisbane

25h 05m2 stops Los Angeles Los Angeles Auckland Intl

11:15 am - 10:59 pmBNE Brisbane-ORD Chicago O'Hare Intl

27h 44m2 stops Auckland Intl Los Angeles Los Angeles

$1,236Air New Zealand

Mon, Jan 25 - Sun, Jan 31

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

26h 35m2 stops Los Angeles Los Angeles Auckland Intl

11:50 am - 10:00 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 10m2 stops Auckland Intl Los Angeles Los Angeles

$1,236Air New Zealand

Wed, Nov 18 - Wed, Nov 25

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

Wed, Nov 4 - Tue, Nov 17

5:35 pm - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 40m1 stop Tokyo Haneda

12:25 pm - 5:20 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 55m2 stops Tokyo Haneda Los Angeles Los Angeles

$1,276ANA

Sat, Oct 31 - Mon, Nov 9

11:45 am - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 40m1 stop Los Angeles Los Angeles

11:10 am - 4:57 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 47m1 stop Los Angeles Los Angeles

$1,580Qantas Airways

Sun, Nov 8 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

6:30 am - 11:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

38h 20m3 stops Denver Intl Los Angeles Los Angeles Nadi

1:15 pm - 5:38 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

31h 23m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,235Multiple Airlines

Sat, Sep 19 - Wed, Sep 30

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

$1,268Qatar Airways

Thu, Sep 17 - Tue, Sep 29

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

$1,268Multiple Airlines

Wed, Sep 16 - Tue, Sep 29

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

$1,268Qatar Airways

Thu, Sep 17 - Wed, Sep 30

8:45 am - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

31h 20m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 2:43 pmBNE Brisbane-ORD Chicago O'Hare Intl

19h 43m1 stop Vancouver Intl

$1,285Air Canada

Wed, Sep 16 - Wed, Sep 30

8:45 am - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

31h 20m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 8:12 pmBNE Brisbane-ORD Chicago O'Hare Intl

25h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,289Air Canada

Wed, Sep 16 - Wed, Sep 30

9:35 pm - 1:45 pmORD Chicago O'Hare Intl-MEL Melbourne

49h 10m2 stops Houston George Bush Intcntl Auckland Intl

7:35 am - 8:22 pmMEL Melbourne-ORD Chicago O'Hare Intl

27h 47m2 stops Auckland Intl San Francisco

$1,396Air New Zealand

Thu, Sep 17 - Tue, Sep 29

4:50 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

23h 05m1 stop Dallas/Fort Worth

9:10 am - 2:20 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 10m1 stop Los Angeles Los Angeles

$1,609American Airlines

Wed, Sep 16 - Mon, Sep 28

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

44h 00m2 stops Denver Intl Vancouver Intl

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

20h 23m1 stop Vancouver Intl

$1,619Air New Zealand

Fri, Sep 18 - Wed, Sep 23

5:50 pm - 7:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 15m1 stop Los Angeles Los Angeles

9:25 pm - 5:00 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 35m1 stop San Francisco

$1,659American Airlines

Wed, Sep 16 - Fri, Sep 18

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Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Oct 20

ORD11:05 amChicago O'Hare Intl

29h 15m

2 stops

SYD8:20 amSydney Kingsford Smith

Oct 27

SYD10:20 amSydney Kingsford Smith

20h 17m

1 stop

ORD2:37 pmChicago O'Hare Intl

$1,198

Air Canada

Oct 20

ORD11:05 amChicago O'Hare Intl

29h 15m

2 stops

SYD8:20 amSydney Kingsford Smith

Oct 27

SYD10:20 amSydney Kingsford Smith

25h 32m

2 stops

ORD7:52 pmChicago O'Hare Intl

$1,200

Air Canada

Nov 4

ORD1:55 pmChicago O'Hare Intl

26h 40m

2 stops

SYD9:35 amSydney Kingsford Smith

Nov 16

SYD11:20 amSydney Kingsford Smith

20h 17m

1 stop

ORD2:37 pmChicago O'Hare Intl

$1,202

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Nov 4

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Nov 17

SYD9:45 pmSydney Kingsford Smith

33h 53m

2 stops

ORD2:38 pmChicago O'Hare Intl

$1,274

ANA

Feb 14

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Mar 3

SYD9:45 pmSydney Kingsford Smith

26h 35m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,278

ANA

Oct 31

ORD5:35 pmChicago O'Hare Intl

34h 40m

1 stop

SYD8:15 pmSydney Kingsford Smith

Nov 9

SYD12:25 pmSydney Kingsford Smith

35h 55m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,281

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 10/26

3:50 pm-6:30 am

1 stop23h 40m

Brisbane

Mon 11/2

1:10 pm-5:59 pm

1 stop20h 49m

$1,092

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 10/20

11:05 am-8:20 am

2 stops29h 15m

Sydney Kingsford Smith

Tue 10/27

10:20 am-2:37 pm

1 stop20h 17m

$1,198

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/16

3:30 pm-9:35 am

1 stop25h 05m

Sydney Kingsford Smith

Mon 11/30

11:20 am-2:37 pm

1 stop20h 17m

$1,198

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 10/31

6:30 am-8:35 am

3 stops34h 05m

Sydney Kingsford Smith

Mon 11/9

11:50 am-5:13 am

3 stops34h 23m

$1,205

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/16

6:30 am-8:35 am

3 stops33h 05m

Sydney Kingsford Smith

Thu 12/10

11:50 am-11:46 am

3 stops40h 56m

$1,208

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 1/25

1:55 pm-7:00 am

2 stops25h 05m

Brisbane

Sun 1/31

11:15 am-10:59 pm

2 stops27h 44m

$1,236

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 11/18

1:00 pm-8:35 am

2 stops26h 35m

Sydney Kingsford Smith

Wed 11/25

11:50 am-10:00 pm

2 stops27h 10m

$1,236

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 11/4

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Tue 11/17

9:45 pm-2:38 pm

2 stops33h 53m

$1,274

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 10/31

5:35 pm-8:15 pm

1 stop34h 40m

Sydney Kingsford Smith

Mon 11/9

12:25 pm-5:20 am

2 stops33h 55m

$1,276

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 11/8

11:45 am-6:25 am

1 stop25h 40m

Sydney Kingsford Smith

Wed 11/18

11:10 am-4:57 pm

1 stop22h 47m

$1,580

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 $1,285. 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 $1,326.

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 $1,434 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	$532
Fastest flight time	23h 40m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $532. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,092.

The fastest flight from Chicago to Australia takes 23h 40m

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 8,568 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,630 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 1,094 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.1 12,055 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,212 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,315 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 1,486 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,629	Free Cancellation	Rating 7.4 3,734 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.