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

ANA, Air Canada, and Delta 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.

$617 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 - 12:00 pm

ORD

MEL

35h 40m

3 stops

1:25 pm - 5:59 am

MEL

ORD

31h 34m

2 stops

$1,113Multiple Airlines

Tue, Aug 11 - Wed, Aug 19

9:20 am - 12:00 pm

ORD

MEL

35h 40m

3 stops

1:25 pm - 5:59 am

MEL

ORD

31h 34m

2 stops

$1,114Multiple Airlines

Tue, Aug 11 - Wed, Aug 19

9:20 am - 10:35 am

ORD

BNE

34h 15m

3 stops

11:35 am - 5:59 am

BNE

ORD

33h 24m

2 stops

$1,118Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

9:20 am - 10:40 am

ORD

BNE

34h 20m

3 stops

11:35 am - 6:17 am

BNE

ORD

33h 42m

2 stops

$1,119Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

9:20 am - 12:00 pm

ORD

MEL

35h 40m

3 stops

1:25 pm - 5:59 am

MEL

ORD

31h 34m

2 stops

$1,120Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

9:20 am - 12:00 pm

ORD

MEL

35h 40m

3 stops

1:25 pm - 6:17 am

MEL

ORD

31h 52m

2 stops

$1,122Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

9:20 am - 10:35 am

ORD

BNE

34h 15m

3 stops

11:35 am - 5:59 am

BNE

ORD

33h 24m

2 stops

$1,124Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

9:20 am - 12:00 pm

ORD

MEL

35h 40m

3 stops

1:25 pm - 5:59 am

MEL

ORD

31h 34m

2 stops

$1,125Multiple Airlines

Tue, Aug 11 - Wed, Aug 19

3:40 pm - 1:55 pm

ORD

ADL

31h 45m

2 stops

8:00 pm - 2:36 pm

ADL

ORD

33h 06m

2 stops

$1,444Air Canada

Sun, Aug 16 - Sun, Aug 23

3:40 pm - 1:55 pm

ORD

ADL

31h 45m

2 stops

8:00 pm - 2:36 pm

ADL

ORD

33h 06m

2 stops

$1,450Air Canada

Sun, Aug 16 - Sun, Aug 23

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Aug 22

MDW1:25 pmChicago Midway

26h 25m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 7

SYD9:15 amSydney Kingsford Smith

24h 18m

2 stops

MDW6:33 pmChicago Midway

$1,601

Delta

Aug 22

MDW10:56 amChicago Midway

28h 54m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 4

SYD9:15 amSydney Kingsford Smith

24h 18m

2 stops

MDW6:33 pmChicago Midway

$1,610

Delta

Oct 20

MDW1:00 pmChicago Midway

26h 50m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 28

SYD9:40 amSydney Kingsford Smith

22h 40m

2 stops

MDW4:20 pmChicago Midway

$1,611

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Aug 21

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 3

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,246

ANA

Aug 24

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

$1,247

ANA

Aug 20

ORD11:00 amChicago O'Hare Intl

41h 10m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 2

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,258

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/11

9:20 am-12:00 pm

3 stops35h 40m

Melbourne

Wed 8/19

1:25 pm-5:59 am

2 stops31h 34m

$1,113

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/11

9:20 am-12:00 pm

3 stops35h 40m

Melbourne

Wed 8/19

1:25 pm-5:59 am

2 stops31h 34m

$1,114

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

$1,118

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 8/18

9:20 am-10:40 am

3 stops34h 20m

Brisbane

Tue 8/25

11:35 am-6:17 am

2 stops33h 42m

$1,119

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 8/19

9:20 am-12:00 pm

3 stops35h 40m

Melbourne

Wed 8/26

1:25 pm-5:59 am

2 stops31h 34m

$1,120

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/18

9:20 am-12:00 pm

3 stops35h 40m

Melbourne

Tue 8/25

1:25 pm-6:17 am

2 stops31h 52m

$1,122

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

$1,124

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/11

9:20 am-12:00 pm

3 stops35h 40m

Melbourne

Wed 8/19

1:25 pm-5:59 am

2 stops31h 34m

$1,125

Quickest round-trip

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 8/16

3:40 pm-1:55 pm

2 stops31h 45m

Adelaide

Sun 8/23

8:00 pm-2:36 pm

2 stops33h 06m

$1,444

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sun 8/16

3:40 pm-1:55 pm

2 stops31h 45m

Adelaide

Sun 8/23

8:00 pm-2:36 pm

2 stops33h 06m

$1,450

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 $1,414 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 31% 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 57m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 57m

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
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.1 11,782 reviews	Search American Airlines flights
Delta	PriceFrom $261	Free Cancellation	Rating 7.8 8,452 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,309 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 246 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,057 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,941 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,265 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 8.0 649 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,403 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.