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

Fiji Airways, Air Canada, and Etihad Airways are the most popular carriers operating from Chicago to Australia

What airlines fly to Australia?

Qantas Airways, Air Canada and United Airlines 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 10 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 10 as of July 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.

$556 Cheap Flights from Chicago to Australia in 2026

Discover deals from 900+ travel sites with momondo.

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.

9:20 am - 10:35 am

ORD

BNE

34h 15m

3 stops

11:35 am - 5:59 am

BNE

ORD

33h 24m

2 stops

$1,123Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

10:16 am - 10:35 am

ORD

BNE

33h 19m

3 stops

11:35 am - 6:17 am

BNE

ORD

33h 42m

2 stops

$1,143Multiple Airlines

Fri, Aug 14 - Fri, Aug 21

6:05 am - 12:00 pm

MDW

MEL

38h 55m

3 stops

1:30 pm - 10:55 am

MEL

MDW

36h 25m

3 stops

$1,162Multiple Airlines

Thu, Aug 20 - Thu, Aug 27

4:25 pm - 8:15 pm

ORD

SYD

34h 50m

1 stop

12:25 pm - 7:20 am

SYD

ORD

35h 55m

1 stop

$1,254ANA

Mon, Nov 2 - Mon, Nov 16

11:50 am - 7:10 pm

ORD

SYD

40h 20m

1 stop

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,257ANA

Thu, Aug 27 - Wed, Sep 9

4:25 pm - 10:30 am

ORD

SYD

25h 05m

1 stop

9:45 pm - 7:20 am

SYD

ORD

26h 35m

1 stop

$1,261ANA

Fri, Nov 27 - Sun, Dec 6

7:48 pm - 11:10 am

ORD

ADL

24h 52m

2 stops

9:20 pm - 2:43 pm

ADL

ORD

31h 53m

2 stops

$1,443Air Canada

Sun, Sep 6 - Sun, Sep 13

3:40 pm - 7:25 pm

ORD

ADL

37h 15m

2 stops

6:55 pm - 2:36 pm

ADL

ORD

34h 11m

2 stops

$1,444Air Canada

Sun, Aug 23 - Sun, Aug 30

3:40 pm - 7:25 pm

ORD

ADL

37h 15m

2 stops

7:00 pm - 2:36 pm

ADL

ORD

34h 06m

2 stops

$1,445Air Canada

Mon, Aug 24 - Mon, Aug 31

3:40 pm - 1:55 pm

ORD

ADL

31h 45m

2 stops

7:00 pm - 2:36 pm

ADL

ORD

34h 06m

2 stops

$1,446Air Canada

Mon, Aug 24 - Mon, Aug 31

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ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Nov 2

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Nov 16

SYD12:25 pmSydney Kingsford Smith

35h 55m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,254

ANA

Aug 27

ORD11:50 amChicago O'Hare Intl

40h 20m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 9

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,257

ANA

Nov 27

ORD4:25 pmChicago O'Hare Intl

25h 05m

1 stop

SYD10:30 amSydney Kingsford Smith

Dec 6

SYD9:45 pmSydney Kingsford Smith

26h 35m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,261

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Sep 1

MDW10:54 amChicago Midway

28h 56m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 8

SYD9:15 amSydney Kingsford Smith

24h 04m

2 stops

MDW6:19 pmChicago Midway

$1,611

Delta

Sep 3

MDW7:25 pmChicago Midway

45h 25m

2 stops

MEL7:50 amMelbourne

Sep 16

MEL10:00 amMelbourne

23h 33m

2 stops

MDW6:33 pmChicago Midway

$1,640

Delta

Oct 9

MDW1:28 pmChicago Midway

26h 22m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 16

SYD10:15 amSydney Kingsford Smith

22h 24m

2 stops

MDW4:39 pmChicago Midway

$1,686

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Wed 8/19

9:20 am-10:35 am

3 stops34h 15m

Brisbane

Wed 8/26

11:35 am-5:59 am

2 stops33h 24m

$1,123

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Fri 8/14

10:16 am-10:35 am

3 stops33h 19m

Brisbane

Fri 8/21

11:35 am-6:17 am

2 stops33h 42m

$1,143

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Thu 8/20

6:05 am-12:00 pm

3 stops38h 55m

Melbourne

Thu 8/27

1:30 pm-10:55 am

3 stops36h 25m

$1,162

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 11/2

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Mon 11/16

12:25 pm-7:20 am

1 stop35h 55m

$1,254

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/27

11:50 am-7:10 pm

1 stop40h 20m

Sydney Kingsford Smith

Wed 9/9

11:45 am-8:40 am

1 stop35h 55m

$1,257

Quickest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 11/27

4:25 pm-10:30 am

1 stop25h 05m

Sydney Kingsford Smith

Sun 12/6

9:45 pm-7:20 am

1 stop26h 35m

$1,261

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 9/6

7:48 pm-11:10 am

2 stops24h 52m

Adelaide

Sun 9/13

9:20 pm-2:43 pm

2 stops31h 53m

$1,443

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 8/23

3:40 pm-7:25 pm

2 stops37h 15m

Adelaide

Sun 8/30

6:55 pm-2:36 pm

2 stops34h 11m

$1,444

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 8/24

3:40 pm-7:25 pm

2 stops37h 15m

Adelaide

Mon 8/31

7:00 pm-2:36 pm

2 stops34h 06m

$1,445

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 8/24

3:40 pm-1:55 pm

2 stops31h 45m

Adelaide

Mon 8/31

7:00 pm-2:36 pm

2 stops34h 06m

$1,446

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 May instead. Flights to Australia in May, while not as cheap as those in November, still average around $142.

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 $1,420 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 $1,185 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 25% 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	20h 53m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 53m

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 10 as of July 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
Delta	PriceFrom $261	Free Cancellation	Rating 7.8 8,459 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,328 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 246 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,061 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.1 11,806 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,984 reviews	Search United Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,271 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.3 3,743 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 650 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,406 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.