What airlines fly to Australia?

American Airlines, Qantas Airways and United Airlines are the top three most popular airlines that fly to Australia from Chicago according to our data. American Airlines is the first choice among our users, with 46% 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?

Philippine Airlines, Qantas Airways, and Delta 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 November 2025.

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.

$488 Cheap Flights from Chicago to Australia in 2025/26

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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.

2:15 pm - 9:00 amORD-SYD

25h 45m1 stop

7:05 am - 4:49 pmSYD-ORD

26h 44m2 stops

$898Qantas Airways

Find Deal

Wed, Jan 21 - Tue, Feb 3

6:40 pm - 9:00 amORD-SYD

21h 20m1 stop

7:05 am - 4:39 pmSYD-ORD

26h 34m2 stops

$949Qantas Airways

Find Deal

Tue, Feb 10 - Tue, Mar 3

7:15 am - 8:45 amORD-BNE

33h 30m2 stops

10:45 am - 4:42 pmBNE-ORD

21h 57m1 stop

$950Air Canada

Find Deal

Tue, Jan 27 - Wed, Feb 4

8:45 am - 9:35 amORD-SYD

31h 50m2 stops

11:20 am - 2:41 pmSYD-ORD

20h 21m1 stop

$951Air Canada

Find Deal

Tue, Feb 10 - Tue, Mar 3

3:35 pm - 8:45 amORD-BNE

25h 10m1 stop

10:45 am - 2:41 pmBNE-ORD

19h 56m1 stop

$951Air Canada

Find Deal

Tue, Feb 10 - Sun, Feb 22

1:28 pm - 8:30 amMDW-SYD

26h 02m2 stops

10:40 am - 10:22 pmSYD-MDW

28h 42m2 stops

$1,151Delta

Find Deal

Sun, Jan 18 - Sun, Feb 1

10:48 am - 6:50 amMDW-SYD

27h 02m2 stops

10:40 am - 5:45 pmSYD-MDW

24h 05m2 stops

$1,165Delta

Find Deal

Tue, Feb 10 - Tue, Mar 3

3:43 pm - 3:40 pmORD-CBR

30h 57m3 stops

8:20 am - 2:48 pmCBR-ORD

23h 28m2 stops

$2,078Air New Zealand

Find Deal

Mon, Dec 1 - Mon, Dec 8

3:13 pm - 12:15 pmORD-CBR

28h 02m2 stops

2:50 pm - 11:59 pmCBR-ORD

26h 09m2 stops

$2,106American Airlines

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Mon, Jan 5 - Mon, Jan 12

3:13 pm - 12:15 pmORD-CBR

28h 02m2 stops

2:50 pm - 11:59 pmCBR-ORD

26h 09m2 stops

$2,107American Airlines

Find Deal

Mon, Jan 5 - Mon, Jan 12

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Jan 27

ORD7:15 amChicago O'Hare Intl

33h 30m

2 stops

BNE8:45 amBrisbane

Feb 4

BNE10:45 amBrisbane

21h 57m

1 stop

ORD4:42 pmChicago O'Hare Intl

$950

Find similar

Air Canada

Feb 10

ORD8:45 amChicago O'Hare Intl

31h 50m

2 stops

SYD9:35 amSydney Kingsford Smith

Mar 3

SYD11:20 amSydney Kingsford Smith

20h 21m

1 stop

ORD2:41 pmChicago O'Hare Intl

$951

Find similar

Air Canada

Feb 10

ORD10:35 amChicago O'Hare Intl

30h 00m

3 stops

SYD9:35 amSydney Kingsford Smith

Mar 3

SYD11:20 amSydney Kingsford Smith

37h 40m

2 stops

ORD8:00 amChicago O'Hare Intl

$957

Find similar

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

Jan 21

ORD2:15 pmChicago O'Hare Intl

25h 45m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 3

SYD7:05 amSydney Kingsford Smith

26h 44m

2 stops

ORD4:49 pmChicago O'Hare Intl

$898

Find similar

Qantas Airways

Feb 10

ORD6:40 pmChicago O'Hare Intl

21h 20m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 3

SYD7:05 amSydney Kingsford Smith

26h 34m

2 stops

ORD4:39 pmChicago O'Hare Intl

$949

Find similar

Qantas Airways

Jan 15

ORD9:02 amChicago O'Hare Intl

29h 23m

1 stop

SYD7:25 amSydney Kingsford Smith

Feb 14

SYD7:05 amSydney Kingsford Smith

27h 36m

2 stops

ORD5:41 pmChicago O'Hare Intl

$956

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 1/21

2:15 pm-9:00 am

1 stop25h 45m

Sydney Kingsford Smith

Tue 2/3

7:05 am-4:49 pm

2 stops26h 44m

$898

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 2/10

6:40 pm-9:00 am

1 stop21h 20m

Sydney Kingsford Smith

Tue 3/3

7:05 am-4:39 pm

2 stops26h 34m

$949

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 1/27

7:15 am-8:45 am

2 stops33h 30m

Brisbane

Wed 2/4

10:45 am-4:42 pm

1 stop21h 57m

$950

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 2/10

8:45 am-9:35 am

2 stops31h 50m

Sydney Kingsford Smith

Tue 3/3

11:20 am-2:41 pm

1 stop20h 21m

$951

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/10

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

Sun 2/22

10:45 am-2:41 pm

1 stop19h 56m

$951

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sun 1/18

1:28 pm-8:30 am

2 stops26h 02m

Sydney Kingsford Smith

Sun 2/1

10:40 am-10:22 pm

2 stops28h 42m

$1,151

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Tue 2/10

10:48 am-6:50 am

2 stops27h 02m

Sydney Kingsford Smith

Tue 3/3

10:40 am-5:45 pm

2 stops24h 05m

$1,165

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Mon 12/1

3:43 pm-3:40 pm

3 stops30h 57m

Canberra

Mon 12/8

8:20 am-2:48 pm

2 stops23h 28m

$2,078

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Mon 1/5

3:13 pm-12:15 pm

2 stops28h 02m

Canberra

Mon 1/12

2:50 pm-11:59 pm

2 stops26h 09m

$2,106

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Mon 1/5

3:13 pm-12:15 pm

2 stops28h 02m

Canberra

Mon 1/12

2:50 pm-11:59 pm

2 stops26h 09m

$2,107

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 August is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $853. If you aren’t able to travel during the month of August, then book flights to Australia from Chicago during May instead. Flights to Australia in May, while not as cheap as those in August, still average around $864.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Chicago to Australia is on a Saturday. Travelers who choose to depart for Australia on a Saturday will often find tickets for as low as $935. On the other hand, Thursday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,415.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Chicago in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,185 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,417 on average. Flights to Australia from Chicago in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $1,050 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 $849 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 20% 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

Fastest flight time	20h 52m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 52m

There are no direct flights from Chicago to Australia. There are no popular flight routes from Chicago to Australia.

Search flight deals

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 2025.
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
Qantas Airways	PriceFrom $673	Free Cancellation	Rating 7.5 944 reviews	Search Qantas Airways flights
ANA	PriceFrom $679	Free Cancellation	Rating 8.4 1,010 reviews	Search ANA flights
American Airlines	PriceFrom $679	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $772	Free Cancellation	Rating 8.1 209 reviews	Search Fiji Airways flights
Delta	PriceFrom $846	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Air Canada	PriceFrom $872	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights
Qatar Airways	PriceFrom $1,229	Free Cancellation	Rating 7.4 3,675 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 537 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,470	Free Cancellation	Rating 7.6 1,068 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.