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

Air Canada, Delta, and Emirates 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 April 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.

$669 Cheap Flights from Chicago to Australia in 2026

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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.

08:30 - 10:35

ORD

BNE

35h 05m

3 stops

11:35 - 06:07

BNE

ORD

33h 32m

2 stops

$1,384Multiple Airlines

Fri, 15 May - Sun, 24 May

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:15 - 14:45

BNE

ORD

19h 30m

1 stop

$1,390Air Canada

Sun, 31 May - Tue, 9 Jun

08:45 - 07:05

ORD

BNE

31h 20m

2 stops

10:15 - 14:45

BNE

ORD

19h 30m

1 stop

$1,394Air Canada

Sun, 31 May - Tue, 9 Jun

11:05 - 07:05

ORD

BNE

29h 00m

2 stops

10:15 - 14:45

BNE

ORD

19h 30m

1 stop

$1,395Air Canada

Sun, 31 May - Tue, 9 Jun

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 09:34

BNE

ORD

38h 34m

2 stops

$1,403Air Canada

Sun, 24 May - Sun, 7 Jun

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:15 - 09:34

BNE

ORD

38h 19m

2 stops

$1,404Air Canada

Tue, 2 Jun - Tue, 16 Jun

21:15 - 11:50

ORD

ADL

48h 05m

2 stops

20:00 - 19:52

ADL

ORD

38h 22m

2 stops

$1,673Singapore Airlines

Mon, 29 Jun - Wed, 5 Aug

12:53 - 07:50

MDW

MEL

27h 57m

2 stops

10:00 - 21:09

MEL

MDW

26h 09m

2 stops

$2,343Delta

Wed, 20 May - Sun, 31 May

19:20 - 18:35

ORD

PER

34h 15m

1 stop

22:45 - 15:05

PER

ORD

29h 20m

1 stop

$2,589Qatar Airways

Thu, 30 Jul - Thu, 20 Aug

21:01 - 12:10

ORD

DRW

48h 39m

2 stops

13:05 - 23:59

DRW

ORD

49h 24m

2 stops

$3,069Qantas Airways

Thu, 14 May - Thu, 21 May

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

31 May

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

9 June

BNE10:15Brisbane

19h 30m

1 stop

ORD14:45Chicago O'Hare Intl

$1,390

Air Canada

31 May

ORD08:45Chicago O'Hare Intl

31h 20m

2 stops

BNE07:05Brisbane

9 June

BNE10:15Brisbane

19h 30m

1 stop

ORD14:45Chicago O'Hare Intl

$1,394

Air Canada

31 May

ORD11:05Chicago O'Hare Intl

29h 00m

2 stops

BNE07:05Brisbane

9 June

BNE10:15Brisbane

19h 30m

1 stop

ORD14:45Chicago O'Hare Intl

$1,395

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

1 Sept

MDW10:35Chicago Midway

29h 15m

2 stops

SYD06:50Sydney Kingsford Smith

16 Sept

SYD09:15Sydney Kingsford Smith

23h 50m

2 stops

MDW18:05Chicago Midway

$2,343

Delta

6 June

MDW09:23Chicago Midway

30h 27m

2 stops

SYD06:50Sydney Kingsford Smith

23 July

SYD09:15Sydney Kingsford Smith

38h 22m

2 stops

MDW08:37Chicago Midway

$2,344

Delta

5 Aug

MDW13:49Chicago Midway

26h 01m

2 stops

SYD06:50Sydney Kingsford Smith

30 Aug

SYD09:15Sydney Kingsford Smith

24h 16m

2 stops

MDW18:31Chicago Midway

$2,346

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Fri 15/5

08:30-10:35

3 stops35h 05m

Brisbane

Sun 24/5

11:35-06:07

2 stops33h 32m

$1,384

Fastest return journey

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 31/5

15:40-07:05

1 stop24h 25m

Brisbane

Tue 9/6

10:15-14:45

1 stop19h 30m

$1,390

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 31/5

08:45-07:05

2 stops31h 20m

Brisbane

Tue 9/6

10:15-14:45

1 stop19h 30m

$1,394

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 31/5

11:05-07:05

2 stops29h 00m

Brisbane

Tue 9/6

10:15-14:45

1 stop19h 30m

$1,395

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 24/5

15:40-07:05

1 stop24h 25m

Brisbane

Sun 7/6

10:00-09:34

2 stops38h 34m

$1,403

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/6

15:40-07:05

1 stop24h 25m

Brisbane

Tue 16/6

10:15-09:34

2 stops38h 19m

$1,404

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 29/6

21:15-11:50

2 stops48h 05m

Adelaide

Wed 5/8

20:00-19:52

2 stops38h 22m

$1,673

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Wed 20/5

12:53-07:50

2 stops27h 57m

Melbourne

Sun 31/5

10:00-21:09

2 stops26h 09m

$2,343

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 30/7

19:20-18:35

1 stop34h 15m

Perth

Thu 20/8

22:45-15:05

1 stop29h 20m

$2,589

ChicagoDarwin

ORD - DRW

ORDDRW

Chicago O'Hare Intl

Thu 14/5

21:01-12:10

2 stops48h 39m

Darwin

Thu 21/5

13:05-23:59

2 stops49h 24m

$3,069

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, February 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 $1,672. If you don’t want to visit Australia in February, then you should wait until September to fly from Chicago, when ticket prices are also cheap, with an average price of $1,972.

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 $1,951 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 $1,540 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 50m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 50m

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 April 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 $1,969	Free cancellation	Rating 7.5 1,016 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.