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

Qantas Airways and Delta 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 42% 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.

$521 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.

3:10 pm - 9:30 am

ORD

MEL

25h 20m1 stop

6:45 am - 7:53 pm

MEL

ORD

30h 08m2 stops

$926Qantas Airways

mar., ene. 27 - lun., feb. 9

4:45 pm - 5:15 pm

ORD

MEL

31h 30m2 stops

12:00 pm - 5:46 pm

MEL

ORD

22h 46m1 stop

$927Qantas Airways

mié., feb. 25 - vie., mar. 6

6:40 pm - 9:30 am

ORD

MEL

21h 50m1 stop

6:45 am - 2:53 pm

MEL

ORD

25h 08m2 stops

$928Qantas Airways

dom., ene. 18 - dom., feb. 15

4:49 pm - 5:15 pm

ORD

MEL

31h 26m2 stops

12:00 pm - 4:37 pm

MEL

ORD

21h 37m1 stop

$929Qantas Airways

mié., feb. 25 - vie., mar. 6

8:45 am - 8:45 am

ORD

BNE

32h 00m2 stops

10:45 am - 2:41 pm

BNE

ORD

19h 56m1 stop

$958Air Canada

mar., feb. 10 - dom., feb. 22

8:45 am - 8:45 am

ORD

BNE

32h 00m2 stops

10:45 am - 2:41 pm

BNE

ORD

19h 56m1 stop

$959Air Canada

mar., feb. 10 - dom., feb. 22

2:36 pm - 9:30 am

ORD

ADL

26h 24m2 stops

2:55 pm - 9:36 pm

ADL

ORD

23h 11m1 stop

$1,153United Airlines

lun., feb. 2 - lun., feb. 16

6:40 pm - 8:20 am

MDW

BNE

45h 40m2 stops

10:05 am - 6:40 pm

BNE

MDW

23h 35m2 stops

$1,179Delta

mar., feb. 24 - mié., mar. 11

1:10 pm - 7:00 am

MDW

MEL

25h 50m2 stops

9:10 am - 6:40 pm

MEL

MDW

25h 30m2 stops

$1,469Delta

mié., mar. 11 - dom., mar. 22

3:53 pm - 10:20 pm

ORD

PER

40h 27m2 stops

11:50 pm - 7:53 pm

PER

ORD

34h 03m2 stops

$1,578Air New Zealand

jue., feb. 5 - jue., feb. 12

Qantas Airways flights from Chicago to Australia

Our best Qantas Airways deals on Chicago to Australia flight tickets

Qantas Airways

Jan 27

ORD3:10 pmChicago O'Hare Intl

25h 20m

1 stop

MEL9:30 amMelbourne

Feb 9

MEL6:45 amMelbourne

30h 08m

2 stops

ORD7:53 pmChicago O'Hare Intl

$926

Find similar

Qantas Airways

Feb 25

ORD4:45 pmChicago O'Hare Intl

31h 30m

2 stops

MEL5:15 pmMelbourne

Mar 6

MEL12:00 pmMelbourne

22h 46m

1 stop

ORD5:46 pmChicago O'Hare Intl

$927

Find similar

Qantas Airways

Jan 18

ORD6:40 pmChicago O'Hare Intl

21h 50m

1 stop

MEL9:30 amMelbourne

Feb 15

MEL6:45 amMelbourne

25h 08m

2 stops

ORD2:53 pmChicago O'Hare Intl

$928

Find similar

Turkish Airlines flights from Chicago to Australia

Our best Turkish Airlines deals on Chicago to Australia flight tickets

Turkish Airlines

Jan 20

ORD11:50 amChicago O'Hare Intl

38h 30m

2 stops

SYD7:20 pmSydney Kingsford Smith

Jan 23

SYD9:15 pmSydney Kingsford Smith

53h 50m

2 stops

ORD10:05 amChicago O'Hare Intl

$1,414

Find similar

Turkish Airlines

Jan 20

ORD11:50 amChicago O'Hare Intl

38h 30m

2 stops

SYD7:20 pmSydney Kingsford Smith

Jan 23

SYD9:15 pmSydney Kingsford Smith

53h 50m

2 stops

ORD10:05 amChicago O'Hare Intl

$1,430

Find similar

Turkish Airlines

Jan 13

ORD8:20 pmChicago O'Hare Intl

54h 00m

2 stops

SYD7:20 pmSydney Kingsford Smith

Jan 30

SYD9:15 pmSydney Kingsford Smith

38h 10m

2 stops

ORD6:25 pmChicago O'Hare Intl

$1,609

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

mar. 1/27

3:10 pm-9:30 am

1 stop25h 20m

Melbourne

lun. 2/9

6:45 am-7:53 pm

2 stops30h 08m

$926

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

mié. 2/25

4:45 pm-5:15 pm

2 stops31h 30m

Melbourne

vie. 3/6

12:00 pm-5:46 pm

1 stop22h 46m

$927

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

dom. 1/18

6:40 pm-9:30 am

1 stop21h 50m

Melbourne

dom. 2/15

6:45 am-2:53 pm

2 stops25h 08m

$928

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

mié. 2/25

4:49 pm-5:15 pm

2 stops31h 26m

Melbourne

vie. 3/6

12:00 pm-4:37 pm

1 stop21h 37m

$929

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mar. 2/10

8:45 am-8:45 am

2 stops32h 00m

Brisbane

dom. 2/22

10:45 am-2:41 pm

1 stop19h 56m

$958

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mar. 2/10

8:45 am-8:45 am

2 stops32h 00m

Brisbane

dom. 2/22

10:45 am-2:41 pm

1 stop19h 56m

$959

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

lun. 2/2

2:36 pm-9:30 am

2 stops26h 24m

Adelaide

lun. 2/16

2:55 pm-9:36 pm

1 stop23h 11m

$1,153

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-6:40 pm

2 stops23h 35m

$1,179

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

mié. 3/11

1:10 pm-7:00 am

2 stops25h 50m

Melbourne

dom. 3/22

9:10 am-6:40 pm

2 stops25h 30m

$1,469

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

jue. 2/5

3:53 pm-10:20 pm

2 stops40h 27m

Perth

jue. 2/12

11:50 pm-7:53 pm

2 stops34h 03m

$1,578

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 March is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $864. If you aren’t able to travel during the month of March, then book flights to Australia from Chicago during June instead. Flights to Australia in June, while not as cheap as those in March, still average around $864.

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 $1,096 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 $910 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 33% 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 20m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 20m

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 7.5 968 reviews	Search Qantas Airways flights
ANA	PriceFrom $679	Free Cancellation	Rating 8.4 1,060 reviews	Search ANA flights
American Airlines	PriceFrom $796	Free Cancellation	Rating 7.2 11,090 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $796	Free Cancellation	Rating 8.0 216 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $851	Free Cancellation	Rating 7.1 10,600 reviews	Search Air Canada flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights
Delta	PriceFrom $935	Free Cancellation	Rating 7.9 8,021 reviews	Search Delta flights
Qatar Airways	PriceFrom $1,229	Free Cancellation	Rating 7.4 3,701 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 565 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,418	Free Cancellation	Rating 7.6 1,122 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.