What is the cheapest airline that flies from Chicago O'Hare Intl to Australia?

ANA, Air Canada, and Qantas Airways are the most popular carriers operating from Chicago O'Hare Intl to Australia

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Australia?

There is 1 operator available for flights from Chicago O'Hare Intl Airport to Australia as of May 2026.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Australia.

What documentation or ID do you need to fly to Australia?

The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$786 Cheap Flights from Chicago O'Hare Intl Airport to Australia in 2026

1 adult

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Find the cheapest flights from Chicago O'Hare Intl Airport to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:20 - 19:20

ORD

MEL

34h 00m

2 stops

07:30 - 21:22

MEL

ORD

28h 52m

2 stops

$1,651Multiple Airlines

Tue, 23 Jun - Sat, 1 Aug

18:29 - 19:20

ORD

MEL

33h 51m

2 stops

07:30 - 21:22

MEL

ORD

28h 52m

2 stops

$1,696Multiple Airlines

Sat, 27 Jun - Sat, 1 Aug

17:45 - 19:10

ORD

SYD

34h 25m

1 stop

20:55 - 08:40

SYD

ORD

26h 45m

1 stop

$1,698ANA

Wed, 26 Aug - Tue, 8 Sep

17:45 - 19:10

ORD

SYD

34h 25m

1 stop

20:55 - 08:40

SYD

ORD

26h 45m

1 stop

$1,699ANA

Wed, 26 Aug - Tue, 8 Sep

17:45 - 19:10

ORD

SYD

34h 25m

1 stop

11:45 - 04:45

SYD

ORD

32h 00m

2 stops

$1,711ANA

Wed, 5 Aug - Sun, 30 Aug

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:15 - 09:38

BNE

ORD

38h 23m

2 stops

$1,922Air Canada

Tue, 2 Jun - Tue, 16 Jun

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

10:00 - 14:48

BNE

ORD

19h 48m

1 stop

$1,926Air Canada

Tue, 4 Aug - Wed, 16 Sep

21:20 - 13:55

ORD

ADL

50h 05m

2 stops

20:00 - 22:05

ADL

ORD

40h 35m

2 stops

$2,128Singapore Airlines

Thu, 2 Jul - Sun, 2 Aug

18:02 - 10:45

ORD

HBA

24h 43m

2 stops

10:10 - 19:49

HBA

ORD

25h 39m

2 stops

$2,449Qantas Airways

Sat, 3 Oct - Sat, 10 Oct

19:08 - 11:05

ORD

ADL

25h 27m

2 stops

06:00 - 15:54

ADL

ORD

24h 24m

2 stops

$2,503Qantas Airways

Sun, 2 Aug - Sun, 9 Aug

Air Canada flights from Chicago O'Hare Intl Airport to Australia

Our best Air Canada deals on Chicago O'Hare Intl Airport to Australia flight tickets

Air Canada

22 June

ORD15:40Chicago O'Hare Intl

24h 40m

1 stop

SYD07:20Sydney Kingsford Smith

8 July

SYD09:20Sydney Kingsford Smith

20h 21m

1 stop

ORD14:41Chicago O'Hare Intl

$1,852

Air Canada

2 June

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

16 June

BNE10:15Brisbane

38h 23m

2 stops

ORD09:38Chicago O'Hare Intl

$1,922

Air Canada

4 Aug

ORD15:40Chicago O'Hare Intl

24h 25m

1 stop

BNE07:05Brisbane

16 Sept

BNE10:00Brisbane

19h 48m

1 stop

ORD14:48Chicago O'Hare Intl

$1,926

ANA flights from Chicago O'Hare Intl Airport to Australia

Our best ANA deals on Chicago O'Hare Intl Airport to Australia flight tickets

ANA

26 Aug

ORD17:45Chicago O'Hare Intl

34h 25m

1 stop

SYD19:10Sydney Kingsford Smith

8 Sept

SYD20:55Sydney Kingsford Smith

26h 45m

1 stop

ORD08:40Chicago O'Hare Intl

$1,698

ANA

1 Sept

ORD17:45Chicago O'Hare Intl

24h 40m

1 stop

SYD09:25Sydney Kingsford Smith

8 Sept

SYD20:55Sydney Kingsford Smith

26h 45m

1 stop

ORD08:40Chicago O'Hare Intl

$1,699

ANA

1 Sept

ORD07:00Chicago O'Hare Intl

35h 25m

2 stops

SYD09:25Sydney Kingsford Smith

8 Sept

SYD20:55Sydney Kingsford Smith

26h 45m

1 stop

ORD08:40Chicago O'Hare Intl

$1,704

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 23/6

18:20-19:20

2 stops34h 00m

Melbourne

Sat 1/8

07:30-21:22

2 stops28h 52m

$1,651

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 27/6

18:29-19:20

2 stops33h 51m

Melbourne

Sat 1/8

07:30-21:22

2 stops28h 52m

$1,696

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 26/8

17:45-19:10

1 stop34h 25m

Sydney Kingsford Smith

Tue 8/9

20:55-08:40

1 stop26h 45m

$1,698

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 26/8

17:45-19:10

1 stop34h 25m

Sydney Kingsford Smith

Tue 8/9

20:55-08:40

1 stop26h 45m

$1,699

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 5/8

17:45-19:10

1 stop34h 25m

Sydney Kingsford Smith

Sun 30/8

11:45-04:45

2 stops32h 00m

$1,711

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/6

15:40-07:05

1 stop24h 25m

Brisbane

Tue 16/6

10:15-09:38

2 stops38h 23m

$1,922

Fastest return journey

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 4/8

15:40-07:05

1 stop24h 25m

Brisbane

Wed 16/9

10:00-14:48

1 stop19h 48m

$1,926

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 2/7

21:20-13:55

2 stops50h 05m

Adelaide

Sun 2/8

20:00-22:05

2 stops40h 35m

$2,128

ChicagoHobart

ORD - HBA

ORDHBA

Chicago O'Hare Intl

Sat 3/10

18:02-10:45

2 stops24h 43m

Hobart

Sat 10/10

10:10-19:49

2 stops25h 39m

$2,449

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 2/8

19:08-11:05

2 stops25h 27m

Adelaide

Sun 9/8

06:00-15:54

2 stops24h 24m

$2,503

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 O'Hare Intl Airport 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, November is the cheapest month to fly from Chicago O'Hare Intl Airport to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $156. If you don’t want to visit Australia in November, then you should wait until August to fly from Chicago O'Hare Intl Airport, when ticket prices are also cheap, with an average price of $190.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Australia?

You are more likely to see cheaper flights to Australia from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,914 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 O'Hare Intl Airport for as low as $1,553 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Australia flights?

You could potentially save up to 27% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Australia flight.

Cheap Chicago O'Hare Intl Airport to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Australia

Fastest flight time	20h 17m
Direct flights	None

The fastest flight from Chicago O'Hare Intl Airport to Australia takes 20h 17m

There are no direct flights from Chicago O'Hare Intl Airport to Australia. There are no popular flight routes from Chicago O'Hare Intl Airport to Australia.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Australia

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Australia?
Prices for flights from Chicago O'Hare Intl Airport to Australia are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Australia?
There is 1 operator available for flights from Chicago O'Hare Intl Airport to Australia as of May 2026.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Australia

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Australia with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $2,027	Free cancellation	Rating 7.5 1,034 reviews		Search Qantas Airways flights

Why use momondo?

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

It is quick and easy to find Chicago to Australia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Australia that suits you.

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

momondo does allow users to show only those flights to Australia from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Chicago to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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.