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

ANA, Delta, and Qantas Airways are the most popular carriers operating from Chicago to Australia

What airlines fly to Australia?

Qantas Airways, United Airlines and Air Canada are the top three most popular airlines that fly to Australia from Chicago according to our data. Qantas Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 9 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Chicago to Australia?

Prices for flights from Chicago to Australia were last updated today.

How many operators does momondo search for flights from Chicago to Australia?

The number of operators available for flights from Chicago to Australia is 9 as of May 2026.

How old do you have to be to fly from Chicago to Australia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$560 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 round-trip flights

Enter your travel dates to find the best prices.

6:18 pm - 7:20 pm

ORD

MEL

34h 02m

2 stops

7:30 am - 9:02 pm

MEL

ORD

28h 32m

2 stops

$1,201Multiple Airlines

Sat, Aug 8 - Thu, Aug 20

9:13 pm - 6:45 am

ORD

MEL

42h 32m

1 stop

1:30 pm - 6:17 am

MEL

ORD

31h 47m

2 stops

$1,244Multiple Airlines

Tue, Aug 11 - Mon, Aug 17

9:13 pm - 6:45 am

ORD

MEL

42h 32m

1 stop

1:30 pm - 6:17 am

MEL

ORD

31h 47m

2 stops

$1,260Multiple Airlines

Sun, Aug 9 - Mon, Aug 17

9:07 pm - 5:00 am

ORD

BNE

40h 53m

1 stop

11:55 am - 6:19 am

BNE

ORD

33h 24m

2 stops

$1,263Multiple Airlines

Tue, Aug 18 - Sat, Aug 29

9:13 pm - 6:45 am

ORD

MEL

42h 32m

1 stop

1:30 pm - 6:17 am

MEL

ORD

31h 47m

2 stops

$1,266Multiple Airlines

Sat, Aug 8 - Mon, Aug 17

3:40 pm - 7:05 am

ORD

BNE

24h 25m

1 stop

10:15 am - 2:45 pm

BNE

ORD

19h 30m

1 stop

$1,394Air Canada

Sun, May 24 - Tue, Jun 9

8:49 am - 1:55 pm

ORD

ADL

37h 36m

2 stops

6:10 am - 4:38 pm

ADL

ORD

26h 58m

2 stops

$1,447Air Canada

Mon, Oct 19 - Tue, Nov 10

5:10 pm - 1:05 pm

ORD

CBR

28h 55m

2 stops

6:10 am - 4:41 pm

CBR

ORD

25h 31m

2 stops

$1,853American Airlines

Sun, Jun 14 - Sun, Jun 21

2:30 pm - 1:15 pm

ORD

CBR

31h 45m

2 stops

7:15 am - 9:28 pm

CBR

ORD

29h 13m

2 stops

$1,871United Airlines

Sat, Jun 13 - Sat, Jun 20

6:59 pm - 7:10 pm

ORD

PER

35h 11m

2 stops

10:30 am - 11:30 pm

PER

ORD

26h 00m

2 stops

$2,004Qantas Airways

Sat, Jun 27 - Sat, Jul 25

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Sep 15

ORD3:40 pmChicago O'Hare Intl

24h 25m

1 stop

BNE7:05 amBrisbane

Sep 24

BNE10:15 amBrisbane

24h 51m

1 stop

ORD8:06 pmChicago O'Hare Intl

$1,019

Air Canada

May 24

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

Jun 9

SYD9:20 amSydney Kingsford Smith

20h 25m

1 stop

ORD2:45 pmChicago O'Hare Intl

$1,329

Air Canada

May 24

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

Jun 9

SYD9:20 amSydney Kingsford Smith

25h 05m

2 stops

ORD7:25 pmChicago O'Hare Intl

$1,337

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Aug 26

ORD7:50 pmChicago O'Hare Intl

32h 20m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 7

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,273

ANA

Sep 1

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 8

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,274

ANA

Aug 26

ORD7:50 pmChicago O'Hare Intl

32h 20m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 8

SYD11:45 amSydney Kingsford Smith

32h 00m

2 stops

ORD4:45 amChicago O'Hare Intl

$1,277

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 8/8

6:18 pm-7:20 pm

2 stops34h 02m

Melbourne

Thu 8/20

7:30 am-9:02 pm

2 stops28h 32m

$1,201

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/11

9:13 pm-6:45 am

1 stop42h 32m

Melbourne

Mon 8/17

1:30 pm-6:17 am

2 stops31h 47m

$1,244

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sun 8/9

9:13 pm-6:45 am

1 stop42h 32m

Melbourne

Mon 8/17

1:30 pm-6:17 am

2 stops31h 47m

$1,260

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 8/18

9:07 pm-5:00 am

1 stop40h 53m

Brisbane

Sat 8/29

11:55 am-6:19 am

2 stops33h 24m

$1,263

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 8/8

9:13 pm-6:45 am

1 stop42h 32m

Melbourne

Mon 8/17

1:30 pm-6:17 am

2 stops31h 47m

$1,266

Quickest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 5/24

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Tue 6/9

10:15 am-2:45 pm

1 stop19h 30m

$1,394

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 10/19

8:49 am-1:55 pm

2 stops37h 36m

Adelaide

Tue 11/10

6:10 am-4:38 pm

2 stops26h 58m

$1,447

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Sun 6/14

5:10 pm-1:05 pm

2 stops28h 55m

Canberra

Sun 6/21

6:10 am-4:41 pm

2 stops25h 31m

$1,853

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Sat 6/13

2:30 pm-1:15 pm

2 stops31h 45m

Canberra

Sat 6/20

7:15 am-9:28 pm

2 stops29h 13m

$1,871

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 6/27

6:59 pm-7:10 pm

2 stops35h 11m

Perth

Sat 7/25

10:30 am-11:30 pm

2 stops26h 00m

$2,004

Flights are sorted by cheapest round-trip 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?

The month of November is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $113. If you aren’t able to travel during the month of November, then book flights to Australia from Chicago during August instead. Flights to Australia in August, while not as cheap as those in November, still average around $138.

How far in advance should I book a flight from Chicago 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 $1,387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago for as low as $1,126 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 14% 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 04m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 04m

There are no direct flights from Chicago to Australia. There are no popular flight routes from Chicago to Australia.

Search flight deals

Frequently asked questions about flying from Chicago to Australia

When did momondo last update prices for flights from Chicago to Australia?
Prices for flights from Chicago to Australia were last updated today.
How many operators does momondo search for flights from Chicago to Australia?
The number of operators available for flights from Chicago to Australia is 9 as of May 2026.
How old do you have to be to fly from Chicago to Australia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,067 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 241 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,038 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,748 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,211 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 647 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,729 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,418	Free Cancellation	Rating 7.6 1,340 reviews	Search Cathay Pacific flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Chicago.

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

Flights from Chicago to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Australia.

I’m not ready to book a flight from Chicago to Australia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.