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

Philippine Airlines, ANA, and Qantas Airways 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 January 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.

$603 Cheap Flights from Chicago to Australia in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

15:35 - 08:45

ORD

BNE

25h 10m

1 stop

06:10 - 14:41

BNE

ORD

24h 31m

2 stops

$1,180Multiple Airlines

Tue, 24 Feb - Tue, 3 Mar

15:35 - 13:25

ORD

BNE

29h 50m

2 stops

10:45 - 14:41

BNE

ORD

19h 56m

1 stop

$1,233Multiple Airlines

Mon, 2 Mar - Fri, 6 Mar

13:24 - 09:30

ORD

MEL

27h 06m

1 stop

06:45 - 14:53

MEL

ORD

25h 08m

2 stops

$1,326Qantas Airways

Mon, 23 Feb - Wed, 4 Mar

18:40 - 15:35

ORD

MEL

27h 55m

2 stops

12:00 - 23:55

MEL

ORD

28h 55m

1 stop

$1,328Qantas Airways

Mon, 9 Feb - Sat, 28 Feb

14:33 - 09:00

ORD

SYD

25h 27m

1 stop

07:05 - 14:53

SYD

ORD

24h 48m

2 stops

$1,336Qantas Airways

Tue, 17 Feb - Wed, 4 Mar

18:40 - 15:35

ORD

MEL

27h 55m

2 stops

12:00 - 23:55

MEL

ORD

28h 55m

1 stop

$1,342Qantas Airways

Sun, 8 Feb - Sat, 21 Feb

15:35 - 08:45

ORD

BNE

25h 10m

1 stop

09:45 - 14:41

BNE

ORD

19h 56m

1 stop

$1,349Air Canada

Tue, 24 Feb - Wed, 11 Mar

07:15 - 08:45

ORD

BNE

33h 30m

2 stops

09:45 - 14:41

BNE

ORD

19h 56m

1 stop

$1,353Air Canada

Tue, 24 Feb - Wed, 11 Mar

18:20 - 08:20

MDW

BNE

46h 00m

2 stops

10:05 - 17:22

BNE

MDW

22h 17m

2 stops

$1,675Delta

Tue, 24 Feb - Wed, 11 Mar

18:40 - 08:20

MDW

BNE

45h 40m

2 stops

10:05 - 17:22

BNE

MDW

22h 17m

2 stops

$1,677Delta

Tue, 24 Feb - Wed, 11 Mar

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

24 Feb

MDW18:40Chicago Midway

45h 40m

2 stops

BNE08:20Brisbane

11 Mar

BNE10:05Brisbane

22h 17m

2 stops

MDW17:22Chicago Midway

$1,677

Delta

24 Feb

MDW18:40Chicago Midway

45h 40m

2 stops

BNE08:20Brisbane

11 Mar

BNE10:05Brisbane

23h 35m

2 stops

MDW18:40Chicago Midway

$1,678

Delta

24 Feb

MDW13:26Chicago Midway

26h 04m

2 stops

SYD08:30Sydney Kingsford Smith

8 Mar

SYD10:40Sydney Kingsford Smith

22h 42m

2 stops

MDW16:22Chicago Midway

$1,966

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

25 Feb

ORD16:45Chicago O'Hare Intl

23h 45m

1 stop

MEL09:30Melbourne

4 Mar

MEL06:45Melbourne

25h 08m

2 stops

ORD14:53Chicago O'Hare Intl

$1,326

Qantas Airways

9 Feb

ORD18:40Chicago O'Hare Intl

27h 55m

2 stops

MEL15:35Melbourne

28 Feb

MEL12:00Melbourne

28h 55m

1 stop

ORD23:55Chicago O'Hare Intl

$1,328

Qantas Airways

8 Feb

ORD18:40Chicago O'Hare Intl

27h 55m

2 stops

MEL15:35Melbourne

21 Feb

MEL12:00Melbourne

28h 55m

1 stop

ORD23:55Chicago O'Hare Intl

$1,342

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 24/2

15:35-08:45

1 stop25h 10m

Brisbane

Tue 3/3

06:10-14:41

2 stops24h 31m

$1,180

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 2/3

15:35-13:25

2 stops29h 50m

Brisbane

Fri 6/3

10:45-14:41

1 stop19h 56m

$1,233

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 23/2

13:24-09:30

1 stop27h 06m

Melbourne

Wed 4/3

06:45-14:53

2 stops25h 08m

$1,326

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 9/2

18:40-15:35

2 stops27h 55m

Melbourne

Sat 28/2

12:00-23:55

1 stop28h 55m

$1,328

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 17/2

14:33-09:00

1 stop25h 27m

Sydney Kingsford Smith

Wed 4/3

07:05-14:53

2 stops24h 48m

$1,336

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sun 8/2

18:40-15:35

2 stops27h 55m

Melbourne

Sat 21/2

12:00-23:55

1 stop28h 55m

$1,342

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 24/2

15:35-08:45

1 stop25h 10m

Brisbane

Wed 11/3

09:45-14:41

1 stop19h 56m

$1,349

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 24/2

07:15-08:45

2 stops33h 30m

Brisbane

Wed 11/3

09:45-14:41

1 stop19h 56m

$1,353

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Tue 24/2

18:20-08:20

2 stops46h 00m

Brisbane

Wed 11/3

10:05-17:22

2 stops22h 17m

$1,675

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Tue 24/2

18:40-08:20

2 stops45h 40m

Brisbane

Wed 11/3

10:05-17:22

2 stops22h 17m

$1,677

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, June 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 $1,227. If you don’t want to visit Australia in June, then you should wait until May to fly from Chicago, when ticket prices are also cheap, with an average price of $1,231.

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 $1,560 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 $1,292 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	21h 01m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 01m

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 January 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 $1,240	Free cancellation	Rating 7.5 981 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.