What airlines fly to Australia?

Qantas Airways, American Airlines 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 41% 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, Turkish Airlines, 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 December 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.

$483 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.

6:40 pm - 8:50 pm

ORD

SYD

33h 10m2 stops

11:20 am - 4:38 pm

SYD

ORD

22h 18m1 stop

$881Qantas Airways

Mon, Feb 9 - Mon, Mar 2

3:10 pm - 8:50 pm

ORD

SYD

36h 40m2 stops

11:20 am - 2:04 pm

SYD

ORD

19h 44m1 stop

$882Qantas Airways

Mon, Feb 9 - Mon, Mar 2

6:40 pm - 3:35 pm

ORD

MEL

27h 55m2 stops

12:00 pm - 7:53 pm

MEL

ORD

24h 53m1 stop

$911Qantas Airways

Mon, Feb 2 - Mon, Feb 9

3:35 pm - 8:45 am

ORD

BNE

25h 10m1 stop

10:45 am - 4:42 pm

BNE

ORD

21h 57m1 stop

$957Air Canada

Sun, Feb 1 - Tue, Feb 10

3:35 pm - 8:45 am

ORD

BNE

25h 10m1 stop

10:45 am - 2:41 pm

BNE

ORD

19h 56m1 stop

$958Air Canada

Tue, Feb 10 - Sun, Feb 22

12:05 pm - 12:05 am

ORD

MEL

44h 00m2 stops

12:00 pm - 5:29 am

MEL

ORD

33h 29m1 stop

$1,069Multiple Airlines

Thu, Mar 12 - Wed, Mar 25

5:37 pm - 6:45 pm

ORD

MEL

32h 08m2 stops

7:00 am - 9:33 pm

MEL

ORD

31h 33m2 stops

$1,105Multiple Airlines

Sat, Feb 7 - Sat, Feb 21

12:48 pm - 8:20 am

MDW

BNE

27h 32m2 stops

10:40 am - 10:22 pm

BNE

MDW

27h 42m2 stops

$1,164Delta

Wed, Jan 28 - Sun, Feb 8

7:16 pm - 8:20 am

MDW

BNE

45h 04m2 stops

10:40 am - 10:22 pm

BNE

MDW

27h 42m2 stops

$1,178Delta

Sun, Jan 25 - Sun, Feb 8

9:05 pm - 11:00 am

ORD

HBA

44h 55m2 stops

6:00 am - 6:52 pm

HBA

ORD

29h 52m3 stops

$1,574Air New Zealand

Mon, Feb 2 - Tue, Feb 10

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Mar 4

ORD6:20 pmChicago O'Hare Intl

32h 55m

2 stops

SYD8:15 pmSydney Kingsford Smith

Mar 11

SYD12:25 pmSydney Kingsford Smith

32h 53m

2 stops

ORD5:18 amChicago O'Hare Intl

$1,217

Find similar

ANA

Dec 30

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Jan 24

SYD12:25 pmSydney Kingsford Smith

33h 50m

2 stops

ORD5:15 amChicago O'Hare Intl

$1,615

Find similar

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

Feb 9

ORD6:40 pmChicago O'Hare Intl

33h 10m

2 stops

SYD8:50 pmSydney Kingsford Smith

Mar 2

SYD11:20 amSydney Kingsford Smith

22h 18m

1 stop

ORD4:38 pmChicago O'Hare Intl

$881

Find similar

Qantas Airways

Feb 9

ORD3:10 pmChicago O'Hare Intl

36h 40m

2 stops

SYD8:50 pmSydney Kingsford Smith

Mar 2

SYD11:20 amSydney Kingsford Smith

19h 44m

1 stop

ORD2:04 pmChicago O'Hare Intl

$882

Find similar

Qantas Airways

Feb 2

ORD6:40 pmChicago O'Hare Intl

27h 55m

2 stops

MEL3:35 pmMelbourne

Feb 9

MEL12:00 pmMelbourne

24h 53m

1 stop

ORD7:53 pmChicago O'Hare Intl

$911

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 2/9

6:40 pm-8:50 pm

2 stops33h 10m

Sydney Kingsford Smith

Mon 3/2

11:20 am-4:38 pm

1 stop22h 18m

$881

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 2/9

3:10 pm-8:50 pm

2 stops36h 40m

Sydney Kingsford Smith

Mon 3/2

11:20 am-2:04 pm

1 stop19h 44m

$882

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 2/2

6:40 pm-3:35 pm

2 stops27h 55m

Melbourne

Mon 2/9

12:00 pm-7:53 pm

1 stop24h 53m

$911

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 2/1

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

Tue 2/10

10:45 am-4:42 pm

1 stop21h 57m

$957

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

$958

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 3/12

12:05 pm-12:05 am

2 stops44h 00m

Melbourne

Wed 3/25

12:00 pm-5:29 am

1 stop33h 29m

$1,069

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 2/7

5:37 pm-6:45 pm

2 stops32h 08m

Melbourne

Sat 2/21

7:00 am-9:33 pm

2 stops31h 33m

$1,105

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Wed 1/28

12:48 pm-8:20 am

2 stops27h 32m

Brisbane

Sun 2/8

10:40 am-10:22 pm

2 stops27h 42m

$1,164

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Sun 1/25

7:16 pm-8:20 am

2 stops45h 04m

Brisbane

Sun 2/8

10:40 am-10:22 pm

2 stops27h 42m

$1,178

ChicagoHobart

ORD - HBA

ORDHBA

Chicago O'Hare Intl

Mon 2/2

9:05 pm-11:00 am

2 stops44h 55m

Hobart

Tue 2/10

6:00 am-6:52 pm

3 stops29h 52m

$1,574

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 June instead. Flights to Australia in June, while not as cheap as those in August, still average around $863.

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 $1,072 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 $851 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 33% 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 30m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 30m

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 December 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 $675	Free Cancellation	Rating 7.5 957 reviews	Search Qantas Airways flights
ANA	PriceFrom $679	Free Cancellation	Rating 8.4 1,049 reviews	Search ANA flights
American Airlines	PriceFrom $796	Free Cancellation	Rating 7.2 11,071 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $796	Free Cancellation	Rating 8.0 212 reviews	Search Fiji Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights
Air Canada	PriceFrom $872	Free Cancellation	Rating 7.1 10,562 reviews	Search Air Canada flights
Delta	PriceFrom $935	Free Cancellation	Rating 7.9 8,016 reviews	Search Delta flights
Qatar Airways	PriceFrom $1,229	Free Cancellation	Rating 7.4 3,698 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 562 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,418	Free Cancellation	Rating 7.6 1,109 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.