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

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

What airlines fly to Australia?

Qantas Airways, American Airlines 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 45% 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 January 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.

$502 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.

3:35 pm - 8:45 am

ORD

BNE

25h 10m

1 stop

6:10 am - 2:41 pm

BNE

ORD

24h 31m

2 stops

$832Multiple Airlines

mar., feb. 24 - mar., mar. 3

3:35 pm - 1:25 pm

ORD

BNE

29h 50m

2 stops

10:45 am - 2:41 pm

BNE

ORD

19h 56m

1 stop

$869Multiple Airlines

lun., mar. 2 - vie., mar. 6

1:24 pm - 9:30 am

ORD

MEL

27h 06m

1 stop

6:45 am - 2:53 pm

MEL

ORD

25h 08m

2 stops

$935Qantas Airways

lun., feb. 23 - mié., mar. 4

6:40 pm - 3:35 pm

ORD

MEL

27h 55m

2 stops

12:00 pm - 11:55 pm

MEL

ORD

28h 55m

1 stop

$936Qantas Airways

lun., feb. 9 - sáb., feb. 28

2:33 pm - 9:00 am

ORD

SYD

25h 27m

1 stop

7:05 am - 2:53 pm

SYD

ORD

24h 48m

2 stops

$942Qantas Airways

mar., feb. 17 - mié., mar. 4

6:40 pm - 3:35 pm

ORD

MEL

27h 55m

2 stops

12:00 pm - 11:55 pm

MEL

ORD

28h 55m

1 stop

$946Qantas Airways

dom., feb. 8 - sáb., feb. 21

3:35 pm - 8:45 am

ORD

BNE

25h 10m

1 stop

9:45 am - 2:41 pm

BNE

ORD

19h 56m

1 stop

$949Air Canada

mar., feb. 24 - mié., mar. 11

3:35 pm - 8:45 am

ORD

BNE

25h 10m

1 stop

9:45 am - 2:41 pm

BNE

ORD

19h 56m

1 stop

$951Air Canada

dom., feb. 22 - mié., mar. 11

6:20 pm - 8:20 am

MDW

BNE

46h 00m

2 stops

10:05 am - 5:22 pm

BNE

MDW

22h 17m

2 stops

$1,181Delta

mar., feb. 24 - mié., mar. 11

6:40 pm - 8:20 am

MDW

BNE

45h 40m

2 stops

10:05 am - 5:22 pm

BNE

MDW

22h 17m

2 stops

$1,182Delta

mar., feb. 24 - mié., mar. 11

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

Feb 23

ORD1:24 pmChicago O'Hare Intl

27h 06m

1 stop

MEL9:30 amMelbourne

Mar 4

MEL6:45 amMelbourne

25h 08m

2 stops

ORD2:53 pmChicago O'Hare Intl

$935

Qantas Airways

Feb 9

ORD6:40 pmChicago O'Hare Intl

27h 55m

2 stops

MEL3:35 pmMelbourne

Feb 28

MEL12:00 pmMelbourne

28h 55m

1 stop

ORD11:55 pmChicago O'Hare Intl

$936

Qantas Airways

Feb 17

ORD2:33 pmChicago O'Hare Intl

25h 27m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 4

SYD7:05 amSydney Kingsford Smith

24h 48m

2 stops

ORD2:53 pmChicago O'Hare Intl

$942

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Feb 24

ORD3:35 pmChicago O'Hare Intl

25h 10m

1 stop

BNE8:45 amBrisbane

Mar 11

BNE9:45 amBrisbane

19h 56m

1 stop

ORD2:41 pmChicago O'Hare Intl

$949

Air Canada

Feb 22

ORD3:35 pmChicago O'Hare Intl

25h 10m

1 stop

BNE8:45 amBrisbane

Mar 11

BNE9:45 amBrisbane

19h 56m

1 stop

ORD2:41 pmChicago O'Hare Intl

$951

Air Canada

Feb 24

ORD7:15 amChicago O'Hare Intl

33h 30m

2 stops

BNE8:45 amBrisbane

Mar 11

BNE9:45 amBrisbane

19h 56m

1 stop

ORD2:41 pmChicago O'Hare Intl

$953

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mar. 2/24

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

mar. 3/3

6:10 am-2:41 pm

2 stops24h 31m

$832

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

lun. 3/2

3:35 pm-1:25 pm

2 stops29h 50m

Brisbane

vie. 3/6

10:45 am-2:41 pm

1 stop19h 56m

$869

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

lun. 2/23

1:24 pm-9:30 am

1 stop27h 06m

Melbourne

mié. 3/4

6:45 am-2:53 pm

2 stops25h 08m

$935

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

lun. 2/9

6:40 pm-3:35 pm

2 stops27h 55m

Melbourne

sáb. 2/28

12:00 pm-11:55 pm

1 stop28h 55m

$936

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mar. 2/17

2:33 pm-9:00 am

1 stop25h 27m

Sydney Kingsford Smith

mié. 3/4

7:05 am-2:53 pm

2 stops24h 48m

$942

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

dom. 2/8

6:40 pm-3:35 pm

2 stops27h 55m

Melbourne

sáb. 2/21

12:00 pm-11:55 pm

1 stop28h 55m

$946

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mar. 2/24

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

mié. 3/11

9:45 am-2:41 pm

1 stop19h 56m

$949

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

dom. 2/22

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

mié. 3/11

9:45 am-2:41 pm

1 stop19h 56m

$951

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

mar. 2/24

6:20 pm-8:20 am

2 stops46h 00m

Brisbane

mié. 3/11

10:05 am-5:22 pm

2 stops22h 17m

$1,181

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

mar. 2/24

6:40 pm-8:20 am

2 stops45h 40m

Brisbane

mié. 3/11

10:05 am-5:22 pm

2 stops22h 17m

$1,182

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 June is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $865. If you aren’t able to travel during the month of June, then book flights to Australia from Chicago during May instead. Flights to Australia in May, while not as cheap as those in June, still average around $868.

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 $1,100 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 $911 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 23% 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 01m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 01m

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 January 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
Qantas Airways	PriceFrom $675	Free Cancellation	Rating 7.5 981 reviews	Search Qantas Airways flights
ANA	PriceFrom $703	Free Cancellation	Rating 8.4 1,078 reviews	Search ANA flights
American Airlines	PriceFrom $796	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $796	Free Cancellation	Rating 8.0 223 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $851	Free Cancellation	Rating 7.1 10,666 reviews	Search Air Canada flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,214 reviews	Search United Airlines flights
Delta	PriceFrom $935	Free Cancellation	Rating 7.9 8,128 reviews	Search Delta flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 577 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,229	Free Cancellation	Rating 7.4 3,728 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,418	Free Cancellation	Rating 7.6 1,148 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.