What airlines fly to Australia?

American Airlines, Qantas Airways and United Airlines are the top three most popular airlines that fly to Australia from Chicago according to our data. American Airlines is the first choice among our users, with 50% 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.

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

Fiji Airways is the most popular carrier operating 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 November 2025.

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.

$530 Cheap Flights from Chicago to Australia in 2025/26

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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.

2:15 pm - 9:00 amORD-SYD

25h 45m1 stop

7:05 am - 2:57 pmSYD-ORD

24h 52m2 stops

$991Qantas Airways

Find Deal

Thu, Jan 15 - Sat, Jan 24

7:39 pm - 5:15 pmORD-MEL

28h 36m2 stops

12:00 pm - 4:39 pmMEL-ORD

21h 39m1 stop

$1,042Qantas Airways

Find Deal

Wed, Feb 25 - Fri, Mar 6

12:50 pm - 8:35 amORD-SYD

27h 45m2 stops

10:20 am - 8:00 amSYD-ORD

37h 40m2 stops

$1,081Air Canada

Find Deal

Sun, Mar 8 - Sun, Mar 22

3:40 pm - 9:35 amORD-SYD

24h 55m1 stop

10:20 am - 8:00 amSYD-ORD

37h 40m3 stops

$1,087Air Canada

Find Deal

Sun, Mar 1 - Wed, Mar 18

1:00 pm - 7:00 amORD-BNE

26h 00m2 stops

11:10 am - 8:25 pmBNE-ORD

25h 15m2 stops

$1,341Air New Zealand

Find Deal

Tue, Nov 25 - Thu, Dec 25

3:53 pm - 10:55 amORD-MEL

26h 02m2 stops

10:35 am - 8:25 pmMEL-ORD

26h 50m2 stops

$1,345Air New Zealand

Find Deal

Thu, Dec 4 - Wed, Jan 14

3:02 pm - 5:30 amORD-BNE

23h 28m1 stop

8:05 pm - 5:04 amBNE-ORD

23h 59m1 stop

$1,433American Airlines

Find Deal

Fri, Mar 13 - Sun, Apr 5

5:10 pm - 5:00 amORD-BNE

20h 50m1 stop

8:05 pm - 5:04 amBNE-ORD

23h 59m1 stop

$1,434American Airlines

Find Deal

Tue, Mar 24 - Mon, Apr 6

6:18 pm - 7:30 amORD-BNE

21h 12m1 stop

10:40 am - 9:36 pmBNE-ORD

25h 56m1 stop

$1,457United Airlines

Find Deal

Sun, Mar 1 - Sun, Mar 15

10:10 pm - 7:30 amORD-BNE

41h 20m1 stop

11:40 am - 6:48 pmBNE-ORD

23h 08m1 stop

$1,470United Airlines

Find Deal

Sat, Dec 27 - Mon, Jan 19

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Apr 26

MDW1:00 pmChicago Midway

26h 35m

2 stops

SYD6:35 amSydney Kingsford Smith

May 3

SYD9:25 amSydney Kingsford Smith

23h 40m

2 stops

MDW6:05 pmChicago Midway

$1,268

Find similar

Delta

Nov 8

ORD5:15 pmChicago O'Hare Intl

46h 15m

2 stops

SYD8:30 amSydney Kingsford Smith

Nov 19

SYD10:40 amSydney Kingsford Smith

23h 06m

2 stops

ORD4:46 pmChicago O'Hare Intl

$1,285

Find similar

Delta

Apr 19

MDW2:00 pmChicago Midway

25h 35m

2 stops

SYD6:35 amSydney Kingsford Smith

May 2

SYD9:25 amSydney Kingsford Smith

24h 06m

2 stops

MDW6:31 pmChicago Midway

$1,318

Find similar

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Mar 8

ORD12:50 pmChicago O'Hare Intl

27h 45m

2 stops

SYD8:35 amSydney Kingsford Smith

Mar 22

SYD10:20 amSydney Kingsford Smith

37h 40m

2 stops

ORD8:00 amChicago O'Hare Intl

$1,081

Find similar

Air Canada

Mar 1

ORD3:40 pmChicago O'Hare Intl

24h 55m

1 stop

SYD9:35 amSydney Kingsford Smith

Mar 18

SYD10:20 amSydney Kingsford Smith

37h 40m

3 stops

ORD8:00 amChicago O'Hare Intl

$1,087

Find similar

Air Canada

Jan 13

ORD12:50 pmChicago O'Hare Intl

27h 55m

2 stops

BNE8:45 amBrisbane

Jan 19

BNE10:45 amBrisbane

37h 20m

2 stops

ORD8:05 amChicago O'Hare Intl

$1,091

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 1/15

2:15 pm-9:00 am

1 stop25h 45m

Sydney Kingsford Smith

Sat 1/24

7:05 am-2:57 pm

2 stops24h 52m

$991

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 2/25

7:39 pm-5:15 pm

2 stops28h 36m

Melbourne

Fri 3/6

12:00 pm-4:39 pm

1 stop21h 39m

$1,042

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 3/8

12:50 pm-8:35 am

2 stops27h 45m

Sydney Kingsford Smith

Sun 3/22

10:20 am-8:00 am

2 stops37h 40m

$1,081

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 3/1

3:40 pm-9:35 am

1 stop24h 55m

Sydney Kingsford Smith

Wed 3/18

10:20 am-8:00 am

3 stops37h 40m

$1,087

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 11/25

1:00 pm-7:00 am

2 stops26h 00m

Brisbane

Thu 12/25

11:10 am-8:25 pm

2 stops25h 15m

$1,341

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 12/4

3:53 pm-10:55 am

2 stops26h 02m

Melbourne

Wed 1/14

10:35 am-8:25 pm

2 stops26h 50m

$1,345

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Fri 3/13

3:02 pm-5:30 am

1 stop23h 28m

Brisbane

Sun 4/5

8:05 pm-5:04 am

1 stop23h 59m

$1,433

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 3/24

5:10 pm-5:00 am

1 stop20h 50m

Brisbane

Mon 4/6

8:05 pm-5:04 am

1 stop23h 59m

$1,434

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 3/1

6:18 pm-7:30 am

1 stop21h 12m

Brisbane

Sun 3/15

10:40 am-9:36 pm

1 stop25h 56m

$1,457

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 12/27

10:10 pm-7:30 am

1 stop41h 20m

Brisbane

Mon 1/19

11:40 am-6:48 pm

1 stop23h 08m

$1,470

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 August is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $851. If you aren’t able to travel during the month of August, then book flights to Australia from Chicago during September instead. Flights to Australia in September, while not as cheap as those in August, still average around $856.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Chicago to Australia is on a Saturday. Travelers who choose to depart for Australia on a Saturday will often find tickets for as low as $935. On the other hand, Thursday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,415.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Chicago in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,185 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,417 on average. Flights to Australia from Chicago in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,071 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 $859 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

Direct flights	None

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 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 November 2025.
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
Qantas Airways	PriceFrom $673	Free Cancellation	Rating 7.5 929 reviews	Search Qantas Airways flights
ANA	PriceFrom $679	Free Cancellation	Rating 8.4 1,003 reviews	Search ANA flights
American Airlines	PriceFrom $679	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $772	Free Cancellation	Rating 8.1 209 reviews	Search Fiji Airways flights
Delta	PriceFrom $846	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Air Canada	PriceFrom $872	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada flights
Qatar Airways	PriceFrom $1,229	Free Cancellation	Rating 7.4 3,661 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 526 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,470	Free Cancellation	Rating 7.6 1,055 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.