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

Fiji Airways, Philippine Airlines, and ANA 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 are updated daily.

How many operators does momondo search for flights from Chicago to Australia?

As of March 2026, there is 1 operator available to choose from for flights from Chicago to Australia.

How old do you have to be to fly from Chicago to Australia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify 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 required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$598 Cheap Flights from Chicago to Australia in 2026

1 adult

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Find the cheapest flights from Chicago to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 05:27

BNE

ORD

34h 27m

2 stops

$1,237Multiple Airlines

Sun, 12 Apr - Mon, 27 Apr

15:35 - 07:45

ORD

BNE

25h 10m

1 stop

10:00 - 14:45

BNE

ORD

19h 45m

1 stop

$1,239Air Canada

Mon, 23 Mar - Tue, 21 Apr

12:50 - 07:05

ORD

BNE

27h 15m

2 stops

10:00 - 14:45

BNE

ORD

19h 45m

1 stop

$1,243Air Canada

Tue, 21 Apr - Wed, 29 Apr

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 05:25

BNE

ORD

34h 25m

2 stops

$1,250Multiple Airlines

Mon, 20 Apr - Mon, 4 May

18:49 - 07:35

ORD

SYD

44h 46m

2 stops

09:10 - 14:16

SYD

ORD

20h 06m

1 stop

$1,556Qantas Airways

Wed, 25 Mar - Wed, 29 Apr

17:55 - 07:35

ORD

SYD

45h 40m

2 stops

11:20 - 14:53

SYD

ORD

19h 33m

1 stop

$1,558Qantas Airways

Tue, 17 Mar - Thu, 26 Mar

13:10 - 07:50

MDW

MEL

27h 40m

2 stops

10:00 - 22:28

MEL

MDW

27h 28m

2 stops

$2,055Delta

Mon, 6 Apr - Wed, 22 Apr

09:27 - 06:50

MDW

SYD

30h 23m

2 stops

09:15 - 22:28

SYD

MDW

28h 13m

2 stops

$2,055Delta

Fri, 17 Apr - Sat, 25 Apr

20:03 - 16:00

ORD

PER

54h 57m

2 stops

23:50 - 00:45

PER

ORD

37h 55m

2 stops

$2,087Air New Zealand

Sat, 11 Apr - Sat, 18 Apr

21:20 - 16:00

ORD

PER

53h 40m

2 stops

23:50 - 23:28

PER

ORD

36h 38m

2 stops

$2,089Air New Zealand

Sat, 11 Apr - Sat, 18 Apr

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

23 Mar

ORD15:35Chicago O'Hare Intl

25h 10m

1 stop

BNE07:45Brisbane

21 Apr

BNE10:00Brisbane

19h 45m

1 stop

ORD14:45Chicago O'Hare Intl

$1,239

Air Canada

21 Apr

ORD12:50Chicago O'Hare Intl

27h 15m

2 stops

BNE07:05Brisbane

29 Apr

BNE10:00Brisbane

19h 45m

1 stop

ORD14:45Chicago O'Hare Intl

$1,243

Air Canada

23 Mar

ORD07:15Chicago O'Hare Intl

33h 30m

2 stops

BNE07:45Brisbane

21 Apr

BNE10:00Brisbane

19h 45m

1 stop

ORD14:45Chicago O'Hare Intl

$1,245

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

25 Mar

ORD18:49Chicago O'Hare Intl

44h 46m

2 stops

SYD07:35Sydney Kingsford Smith

29 Apr

SYD09:10Sydney Kingsford Smith

20h 06m

1 stop

ORD14:16Chicago O'Hare Intl

$1,556

Qantas Airways

17 Mar

ORD17:55Chicago O'Hare Intl

45h 40m

2 stops

SYD07:35Sydney Kingsford Smith

26 Mar

SYD11:20Sydney Kingsford Smith

19h 33m

1 stop

ORD14:53Chicago O'Hare Intl

$1,558

Qantas Airways

25 Mar

ORD18:49Chicago O'Hare Intl

44h 46m

2 stops

SYD07:35Sydney Kingsford Smith

6 Apr

SYD09:10Sydney Kingsford Smith

20h 43m

1 stop

ORD14:53Chicago O'Hare Intl

$1,572

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 12/4

15:40-07:05

1 stop24h 25m

Brisbane

Mon 27/4

10:00-05:27

2 stops34h 27m

$1,237

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 23/3

15:35-07:45

1 stop25h 10m

Brisbane

Tue 21/4

10:00-14:45

1 stop19h 45m

$1,239

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 21/4

12:50-07:05

2 stops27h 15m

Brisbane

Wed 29/4

10:00-14:45

1 stop19h 45m

$1,243

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 20/4

15:40-07:05

1 stop24h 25m

Brisbane

Mon 4/5

10:00-05:25

2 stops34h 25m

$1,250

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 25/3

18:49-07:35

2 stops44h 46m

Sydney Kingsford Smith

Wed 29/4

09:10-14:16

1 stop20h 06m

$1,556

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 17/3

17:55-07:35

2 stops45h 40m

Sydney Kingsford Smith

Thu 26/3

11:20-14:53

1 stop19h 33m

$1,558

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Mon 6/4

13:10-07:50

2 stops27h 40m

Melbourne

Wed 22/4

10:00-22:28

2 stops27h 28m

$2,055

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Fri 17/4

09:27-06:50

2 stops30h 23m

Sydney Kingsford Smith

Sat 25/4

09:15-22:28

2 stops28h 13m

$2,055

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 11/4

20:03-16:00

2 stops54h 57m

Perth

Sat 18/4

23:50-00:45

2 stops37h 55m

$2,087

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 11/4

21:20-16:00

2 stops53h 40m

Perth

Sat 18/4

23:50-23:28

2 stops36h 38m

$2,089

Flights are sorted by cheapest return 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?

In general, October is the cheapest month to fly from Chicago to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,357. If you don’t want to visit Australia in October, then you should wait until February to fly from Chicago, when ticket prices are also cheap, with an average price of $1,541.

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 $1,787 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago for as low as $1,478 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 19% 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 25m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 25m

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 are updated daily.
How many operators does momondo search for flights from Chicago to Australia?
As of March 2026, there is 1 operator available to choose from for flights from Chicago to Australia.
How old do you have to be to fly from Chicago to Australia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify 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 required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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 $1,260	Free cancellation	Rating 7.5 1,000 reviews		Search Qantas Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Australia?

Finding the right flight to Australia from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

Can I find flights from Chicago to Australia with flexible booking policies on momondo?

Yes. All flights to Australia from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Australia?

Once all potential Chicago to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Australia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from Chicago and alert you when they change.