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

Philippine Airlines, Delta, 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 February 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.

$613 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 - 14:43

BNE

ORD

19h 43m

1 stop

$1,264Air Canada

Sun, 12 Apr - Wed, 15 Apr

12:50 - 07:05

ORD

BNE

27h 15m

2 stops

10:00 - 14:43

BNE

ORD

19h 43m

1 stop

$1,270Air Canada

Sun, 12 Apr - Wed, 15 Apr

12:50 - 07:05

ORD

BNE

27h 15m

2 stops

10:00 - 16:35

BNE

ORD

21h 35m

2 stops

$1,288Air New Zealand

Sun, 12 Apr - Wed, 15 Apr

16:49 - 22:45

ORD

MEL

37h 56m

2 stops

09:45 - 16:55

MEL

ORD

22h 10m

1 stop

$1,349Qantas Airways

Thu, 19 Mar - Fri, 10 Apr

16:49 - 22:45

ORD

MEL

37h 56m

2 stops

09:45 - 17:41

MEL

ORD

22h 56m

1 stop

$1,350Qantas Airways

Thu, 19 Mar - Wed, 8 Apr

19:50 - 11:10

ORD

ADL

24h 50m

2 stops

20:00 - 14:41

ADL

ORD

33h 11m

2 stops

$1,381Singapore Airlines

Sun, 28 Jun - Tue, 11 Aug

12:44 - 11:50

ORD

SYD

32h 06m

2 stops

13:15 - 05:23

SYD

ORD

31h 08m

2 stops

$1,391Multiple Airlines

Thu, 21 May - Sun, 31 May

21:15 - 11:50

ORD

ADL

48h 05m

3 stops

20:00 - 14:43

ADL

ORD

33h 13m

2 stops

$1,445Multiple Airlines

Sat, 4 Apr - Mon, 13 Apr

15:40 - 11:10

ORD

ADL

29h 00m

2 stops

20:00 - 14:41

ADL

ORD

33h 11m

2 stops

$1,561Singapore Airlines

Sun, 28 Jun - Tue, 11 Aug

16:40 - 10:45

ORD

CNS

27h 05m

2 stops

11:55 - 21:40

CNS

ORD

24h 45m

2 stops

$2,113Air New Zealand

Thu, 7 May - Thu, 28 May

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

19 Mar

ORD16:49Chicago O'Hare Intl

37h 56m

2 stops

MEL22:45Melbourne

10 Apr

MEL09:45Melbourne

22h 10m

1 stop

ORD16:55Chicago O'Hare Intl

$1,349

Qantas Airways

19 Mar

ORD16:49Chicago O'Hare Intl

37h 56m

2 stops

MEL22:45Melbourne

8 Apr

MEL09:45Melbourne

22h 56m

1 stop

ORD17:41Chicago O'Hare Intl

$1,350

Qantas Airways

7 Mar

ORD16:49Chicago O'Hare Intl

47h 21m

2 stops

SYD09:10Sydney Kingsford Smith

14 Mar

SYD11:20Sydney Kingsford Smith

19h 33m

1 stop

ORD14:53Chicago O'Hare Intl

$1,360

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

12 Apr

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

15 Apr

BNE10:00Brisbane

19h 43m

1 stop

ORD14:43Chicago O'Hare Intl

$1,264

Air Canada

12 Apr

ORD12:50Chicago O'Hare Intl

27h 15m

2 stops

BNE07:05Brisbane

15 Apr

BNE10:00Brisbane

19h 43m

1 stop

ORD14:43Chicago O'Hare Intl

$1,270

Air Canada

15 Apr

ORD08:40Chicago O'Hare Intl

31h 25m

2 stops

BNE07:05Brisbane

29 Apr

BNE10:00Brisbane

25h 05m

2 stops

ORD20:05Chicago O'Hare Intl

$1,274

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

Wed 15/4

10:00-14:43

1 stop19h 43m

$1,264

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 12/4

12:50-07:05

2 stops27h 15m

Brisbane

Wed 15/4

10:00-14:43

1 stop19h 43m

$1,270

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 12/4

12:50-07:05

2 stops27h 15m

Brisbane

Wed 15/4

10:00-16:35

2 stops21h 35m

$1,288

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 19/3

16:49-22:45

2 stops37h 56m

Melbourne

Fri 10/4

09:45-16:55

1 stop22h 10m

$1,349

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 19/3

16:49-22:45

2 stops37h 56m

Melbourne

Wed 8/4

09:45-17:41

1 stop22h 56m

$1,350

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 28/6

19:50-11:10

2 stops24h 50m

Adelaide

Tue 11/8

20:00-14:41

2 stops33h 11m

$1,381

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 21/5

12:44-11:50

2 stops32h 06m

Sydney Kingsford Smith

Sun 31/5

13:15-05:23

2 stops31h 08m

$1,391

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 4/4

21:15-11:50

3 stops48h 05m

Adelaide

Mon 13/4

20:00-14:43

2 stops33h 13m

$1,445

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 28/6

15:40-11:10

2 stops29h 00m

Adelaide

Tue 11/8

20:00-14:41

2 stops33h 11m

$1,561

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 7/5

16:40-10:45

2 stops27h 05m

Cairns

Thu 28/5

11:55-21:40

2 stops24h 45m

$2,113

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 $1,367. 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 $1,553.

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 $1,800 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 $1,489 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	22h 52m
Direct flights	None

The fastest flight from Chicago to Australia takes 22h 52m

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 February 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 $1,269	Free cancellation	Rating 7.5 992 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.