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?

ANA, Turkish Airlines, and Qantas Airways 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.

$522 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.

8:01 pm - 6:45 amORD Chicago O'Hare Intl-MEL Melbourne

42h 44m1 stop Los Angeles Los Angeles

2:30 pm - 6:34 amMEL Melbourne-ORD Chicago O'Hare Intl

32h 04m2 stops Nadi Los Angeles Los Angeles

$1,005Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

8:01 pm - 6:45 amORD Chicago O'Hare Intl-MEL Melbourne

42h 44m1 stop Los Angeles Los Angeles

2:30 pm - 6:34 amMEL Melbourne-ORD Chicago O'Hare Intl

32h 04m2 stops Nadi Los Angeles Los Angeles

$1,034Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

11:30 am - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

40h 45m1 stop Tokyo Narita

12:25 pm - 7:20 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 55m1 stop Tokyo Haneda

$1,201ANA

Sun, Oct 25 - Sat, Nov 7

7:00 am - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 15m2 stops Los Angeles Los Angeles Tokyo Haneda

12:25 pm - 7:20 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 55m1 stop Tokyo Haneda

$1,205ANA

Sun, Oct 25 - Sat, Nov 7

2:10 pm - 10:00 amORD Chicago O'Hare Intl-BNE Brisbane

27h 50m2 stops Los Angeles Los Angeles Auckland Intl

8:20 am - 11:02 pmBNE Brisbane-ORD Chicago O'Hare Intl

30h 42m2 stops Auckland Intl Los Angeles Los Angeles

$1,235Air New Zealand

Mon, Feb 22 - Mon, Mar 1

2:40 pm - 10:00 amORD Chicago O'Hare Intl-BNE Brisbane

27h 20m2 stops Los Angeles Los Angeles Auckland Intl

11:15 am - 6:55 pmBNE Brisbane-ORD Chicago O'Hare Intl

23h 40m2 stops Auckland Intl Los Angeles Los Angeles

$1,235Air New Zealand

Mon, Jan 25 - Mon, Feb 8

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

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

11:20 am - 3:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,267Air Canada

Sun, Oct 18 - Sun, Nov 1

3:40 pm - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

11:20 am - 3:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,267Air Canada

Sun, Oct 18 - Sun, Nov 1

6:50 pm - 9:55 amORD Chicago O'Hare Intl-HBA Hobart

46h 05m2 stops Doha Hamad Intl Melbourne

1:00 pm - 2:30 pmHBA Hobart-ORD Chicago O'Hare Intl

42h 30m2 stops Melbourne Doha Hamad Intl

$1,489Qatar Airways

Wed, Nov 4 - Wed, Nov 11

7:50 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

$1,538Qatar Airways

Sat, Oct 31 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

7:48 pm - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

20h 17m1 stop Vancouver Intl

10:15 am - 1:05 pmBNE Brisbane-ORD Chicago O'Hare Intl

41h 50m2 stops Vancouver Intl Calgary

$1,287Air Canada

Sun, Sep 6 - Tue, Sep 22

8:49 am - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

31h 16m1 stop Vancouver Intl

10:15 am - 2:43 pmBNE Brisbane-ORD Chicago O'Hare Intl

19h 28m1 stop Vancouver Intl

$1,287Air Canada

Sun, Sep 6 - Tue, Sep 22

3:40 pm - 10:40 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 00m2 stops Vancouver Intl Brisbane

9:20 am - 2:50 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 30m1 stop Vancouver Intl

$1,300Multiple Airlines

Mon, Sep 7 - Wed, May 26

3:40 pm - 10:40 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 00m2 stops Vancouver Intl Brisbane

9:20 am - 9:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 39m2 stops Vancouver Intl Toronto Pearson Intl

$1,308Multiple Airlines

Mon, Sep 7 - Wed, May 26

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

$1,595Qatar Airways

Mon, Sep 7 - Sat, Sep 12

7:20 pm - 6:35 pmORD Chicago O'Hare Intl-PER Perth

34h 15m1 stop Doha Hamad Intl

10:45 pm - 3:05 pmPER Perth-ORD Chicago O'Hare Intl

29h 20m1 stop Doha Hamad Intl

$1,660Qatar Airways

Mon, Sep 7 - Wed, Sep 16

3:40 pm - 10:40 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 00m2 stops Vancouver Intl Brisbane

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

20h 23m1 stop Vancouver Intl

$1,742Air New Zealand

Mon, Sep 7 - Sun, Sep 13

5:53 pm - 5:45 pmORD Chicago O'Hare Intl-MEL Melbourne

32h 52m2 stops Houston George Bush Intcntl Auckland Intl

9:30 am - 8:33 pmMEL Melbourne-ORD Chicago O'Hare Intl

26h 03m1 stop Los Angeles Los Angeles

$1,825Air New Zealand

Wed, Sep 9 - Wed, Sep 16

4:00 pm - 6:50 amORD Chicago O'Hare Intl-PER Perth

25h 50m1 stop Hong Kong Intl

8:20 am - 2:20 pmPER Perth-ORD Chicago O'Hare Intl

43h 00m1 stop Hong Kong Intl

$1,851Cathay Pacific

Sun, Sep 6 - Mon, Sep 14

4:00 pm - 10:40 pmORD Chicago O'Hare Intl-PER Perth

41h 40m1 stop Hong Kong Intl

12:10 am - 2:20 pmPER Perth-ORD Chicago O'Hare Intl

27h 10m1 stop Hong Kong Intl

$1,851Cathay Pacific

Sun, Sep 6 - Mon, Sep 14

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Philippine Airlines flights from Chicago to Australia

Our best Philippine Airlines deals on Chicago to Australia flight tickets

Philippine Airlines

Mar 1

ORD10:45 pmChicago O'Hare Intl

42h 35m

1 stop

PER7:20 amPerth

Mar 15

PER8:35 amPerth

22h 20m

1 stop

ORD5:55 pmChicago O'Hare Intl

$1,194

Philippine Airlines

Jan 25

ORD10:45 pmChicago O'Hare Intl

42h 05m

1 stop

SYD9:50 amSydney Kingsford Smith

Feb 14

SYD11:30 amSydney Kingsford Smith

46h 25m

1 stop

ORD4:55 pmChicago O'Hare Intl

$1,303

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Oct 19

MDW12:49 pmChicago Midway

27h 01m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 28

SYD9:40 amSydney Kingsford Smith

23h 07m

2 stops

MDW4:47 pmChicago Midway

$1,615

Delta

Sep 15

MDW1:00 pmChicago Midway

26h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 21

SYD9:15 amSydney Kingsford Smith

24h 04m

2 stops

MDW6:19 pmChicago Midway

$1,618

Delta

Sep 11

MDW5:03 pmChicago Midway

22h 47m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 22

SYD9:15 amSydney Kingsford Smith

24h 18m

2 stops

MDW6:33 pmChicago Midway

$1,668

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 10/16

8:01 pm-6:45 am

1 stop42h 44m

Melbourne

Fri 10/23

2:30 pm-6:34 am

2 stops32h 04m

$1,005

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Fri 10/16

8:01 pm-6:45 am

1 stop42h 44m

Melbourne

Fri 10/23

2:30 pm-6:34 am

2 stops32h 04m

$1,034

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/25

11:30 am-8:15 pm

1 stop40h 45m

Sydney Kingsford Smith

Sat 11/7

12:25 pm-7:20 am

1 stop35h 55m

$1,201

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/25

7:00 am-8:15 pm

2 stops45h 15m

Sydney Kingsford Smith

Sat 11/7

12:25 pm-7:20 am

1 stop35h 55m

$1,205

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 2/22

2:10 pm-10:00 am

2 stops27h 50m

Brisbane

Mon 3/1

8:20 am-11:02 pm

2 stops30h 42m

$1,235

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 1/25

2:40 pm-10:00 am

2 stops27h 20m

Brisbane

Mon 2/8

11:15 am-6:55 pm

2 stops23h 40m

$1,235

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/18

8:45 am-8:20 am

2 stops31h 35m

Sydney Kingsford Smith

Sun 11/1

11:20 am-3:37 pm

1 stop20h 17m

$1,267

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 10/18

3:40 pm-8:20 am

1 stop24h 40m

Sydney Kingsford Smith

Sun 11/1

11:20 am-3:37 pm

1 stop20h 17m

$1,267

ChicagoHobart

ORD Chicago O'Hare Intl - HBA Hobart

ORDHBA

Chicago O'Hare Intl

Wed 11/4

6:50 pm-9:55 am

2 stops46h 05m

Hobart

Wed 11/11

1:00 pm-2:30 pm

2 stops42h 30m

$1,489

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Sat 10/31

7:50 pm-6:45 pm

1 stop33h 55m

Perth

Tue 11/17

1:20 pm-2:30 pm

2 stops39h 10m

$1,538

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 $1,305. 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 $1,314.

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 16% 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	$522
Fastest flight time	20h 51m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $522. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,005.

The fastest flight from Chicago to Australia takes 20h 51m

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 $261	Free Cancellation	Rating 7.8 8,568 reviews	Search Delta flights
Air Canada	PriceFrom $649	Free Cancellation	Rating 7.1 11,581 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 258 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,089 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.1 12,050 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,172 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,309 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 668 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,471 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,629	Free Cancellation	Rating 7.4 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.