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

Air Canada, Delta, and Singapore 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 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.

$658 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.

07:30 - 10:35

ORD

BNE

36h 05m

2 stops

11:35 - 22:04

BNE

ORD

25h 29m

2 stops

$1,253Multiple Airlines

Wed, 6 May - Wed, 13 May

07:30 - 10:40

ORD

BNE

36h 10m

2 stops

11:35 - 22:04

BNE

ORD

25h 29m

2 stops

$1,279Multiple Airlines

Tue, 5 May - Tue, 12 May

05:15 - 11:50

ORD

SYD

39h 35m

2 stops

06:00 - 05:35

SYD

ORD

38h 35m

2 stops

$1,280Multiple Airlines

Fri, 8 May - Sat, 16 May

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 14:45

BNE

ORD

19h 45m

1 stop

$1,371Air Canada

Tue, 5 May - Tue, 12 May

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 14:45

BNE

ORD

19h 45m

1 stop

$1,372Air Canada

Sun, 24 May - Wed, 27 May

12:53 - 07:50

MDW

MEL

27h 57m

2 stops

10:00 - 21:09

MEL

MDW

26h 09m

2 stops

$2,169Delta

Wed, 20 May - Sun, 31 May

06:00 - 06:50

MDW

SYD

33h 50m

2 stops

09:15 - 18:05

SYD

MDW

23h 50m

2 stops

$2,169Delta

Sat, 12 Sep - Sun, 20 Sep

16:45 - 10:45

ORD

OOL

27h 00m

2 stops

11:55 - 23:10

OOL

ORD

26h 15m

2 stops

$2,283Air New Zealand

Tue, 4 Aug - Tue, 18 Aug

15:20 - 11:15

ORD

MCY

28h 55m

2 stops

11:55 - 23:58

MCY

ORD

27h 03m

2 stops

$2,410Qantas Airways

Wed, 1 Jul - Wed, 15 Jul

18:59 - 16:10

ORD

MCY

30h 11m

2 stops

11:55 - 06:01

MCY

ORD

33h 06m

2 stops

$2,412Qantas Airways

Tue, 16 Jun - Tue, 30 Jun

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

5 May

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

12 May

BNE10:00Brisbane

19h 45m

1 stop

ORD14:45Chicago O'Hare Intl

$1,371

Air Canada

24 May

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

27 May

BNE10:00Brisbane

19h 45m

1 stop

ORD14:45Chicago O'Hare Intl

$1,372

Air Canada

5 May

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

12 May

BNE10:00Brisbane

25h 08m

2 stops

ORD20:08Chicago O'Hare Intl

$1,375

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

12 Sept

MDW06:00Chicago Midway

33h 50m

2 stops

SYD06:50Sydney Kingsford Smith

23 Sept

SYD09:15Sydney Kingsford Smith

23h 50m

2 stops

MDW18:05Chicago Midway

$2,169

Delta

20 Sept

MDW18:45Chicago Midway

46h 05m

2 stops

MEL07:50Melbourne

14 Oct

MEL11:00Melbourne

23h 37m

2 stops

MDW18:37Chicago Midway

$2,184

Delta

14 May

MDW19:13Chicago Midway

45h 37m

2 stops

MEL07:50Melbourne

27 May

MEL10:00Melbourne

23h 33m

2 stops

MDW18:33Chicago Midway

$2,192

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Wed 6/5

07:30-10:35

2 stops36h 05m

Brisbane

Wed 13/5

11:35-22:04

2 stops25h 29m

$1,253

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 5/5

07:30-10:40

2 stops36h 10m

Brisbane

Tue 12/5

11:35-22:04

2 stops25h 29m

$1,279

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 8/5

05:15-11:50

2 stops39h 35m

Sydney Kingsford Smith

Sat 16/5

06:00-05:35

2 stops38h 35m

$1,280

Fastest return journey

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 5/5

15:40-07:05

1 stop24h 25m

Brisbane

Tue 12/5

10:00-14:45

1 stop19h 45m

$1,371

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 24/5

15:40-07:05

1 stop24h 25m

Brisbane

Wed 27/5

10:00-14:45

1 stop19h 45m

$1,372

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

$2,169

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sat 12/9

06:00-06:50

2 stops33h 50m

Sydney Kingsford Smith

Sun 20/9

09:15-18:05

2 stops23h 50m

$2,169

ChicagoCoolangatta

ORD - OOL

ORDOOL

Chicago O'Hare Intl

Tue 4/8

16:45-10:45

2 stops27h 00m

Coolangatta Gold Coast

Tue 18/8

11:55-23:10

2 stops26h 15m

$2,283

ChicagoMaroochydore

ORD - MCY

ORDMCY

Chicago O'Hare Intl

Wed 1/7

15:20-11:15

2 stops28h 55m

Maroochydore Sunshine Coast

Wed 15/7

11:55-23:58

2 stops27h 03m

$2,410

ChicagoMaroochydore

ORD - MCY

ORDMCY

Chicago O'Hare Intl

Tue 16/6

18:59-16:10

2 stops30h 11m

Maroochydore Sunshine Coast

Tue 30/6

11:55-06:01

2 stops33h 06m

$2,412

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 $1,648. 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 $1,943.

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 $1,922 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 $1,517 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	22h 46m
Direct flights	None

The fastest flight from Chicago to Australia takes 22h 46m

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 $1,940	Free cancellation	Rating 7.5 1,010 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.