What airlines fly to Australia?

Qantas Airways, United Airlines and Air Canada 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.

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

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 June 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.

$559 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.

9:28 am - 12:00 pm

ORD

MEL

35h 32m

3 stops

1:30 pm - 6:19 am

MEL

ORD

31h 49m

2 stops

$1,097Multiple Airlines

Fri, Aug 14 - Sat, Aug 22

9:28 am - 12:00 pm

ORD

MEL

35h 32m

3 stops

1:30 pm - 6:17 am

MEL

ORD

31h 47m

2 stops

$1,149Multiple Airlines

Sat, Aug 1 - Sat, Aug 8

5:45 pm - 7:10 pm

ORD

SYD

34h 25m

1 stop

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,301ANA

Wed, Aug 19 - Mon, Sep 7

7:50 pm - 9:25 am

ORD

SYD

46h 35m

2 stops

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,305ANA

Sat, Aug 15 - Thu, Sep 3

8:45 am - 7:20 am

ORD

SYD

31h 35m

1 stop

9:20 am - 2:36 pm

SYD

ORD

20h 16m

1 stop

$1,319Air Canada

Sun, Jun 21 - Tue, Jul 7

7:45 pm - 7:05 am

ORD

BNE

44h 20m

2 stops

10:00 am - 2:36 pm

BNE

ORD

19h 36m

1 stop

$1,328Air Canada

Thu, Jun 25 - Mon, Jul 6

3:14 pm - 12:05 pm

ORD

PER

31h 51m

2 stops

11:35 am - 6:26 am

PER

ORD

31h 51m

2 stops

$1,574Qantas Airways

Fri, Oct 16 - Sun, Nov 1

5:10 pm - 12:05 pm

ORD

PER

29h 55m

2 stops

10:00 am - 12:07 am

PER

ORD

27h 07m

2 stops

$1,600Qantas Airways

Tue, Jun 30 - Thu, Jul 30

3:21 pm - 12:25 pm

ORD

PER

32h 04m

2 stops

10:35 am - 5:00 am

PER

ORD

31h 25m

2 stops

$1,653American Airlines

Sun, Jul 26 - Fri, Jul 31

5:10 pm - 3:00 pm

ORD

CNS

30h 50m

2 stops

3:45 pm - 7:06 am

CNS

ORD

30h 21m

2 stops

$1,702American Airlines

Tue, Jul 28 - Fri, Aug 7

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Aug 19

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 7

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,301

ANA

Aug 15

ORD11:00 amChicago O'Hare Intl

41h 10m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 6

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,305

ANA

Aug 31

ORD5:45 pmChicago O'Hare Intl

24h 40m

1 stop

SYD9:25 amSydney Kingsford Smith

Sep 15

SYD11:45 amSydney Kingsford Smith

32h 00m

2 stops

ORD4:45 amChicago O'Hare Intl

$1,307

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Jun 9

ORD3:40 pmChicago O'Hare Intl

24h 25m

1 stop

BNE7:05 amBrisbane

Jul 9

BNE10:15 amBrisbane

19h 21m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,318

Air Canada

Jun 21

ORD8:45 amChicago O'Hare Intl

31h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Jul 7

SYD9:20 amSydney Kingsford Smith

20h 16m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,319

Air Canada

Jun 9

ORD3:40 pmChicago O'Hare Intl

24h 25m

1 stop

BNE7:05 amBrisbane

Jul 9

BNE10:15 amBrisbane

24h 50m

2 stops

ORD8:05 pmChicago O'Hare Intl

$1,321

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Fri 8/14

9:28 am-12:00 pm

3 stops35h 32m

Melbourne

Sat 8/22

1:30 pm-6:19 am

2 stops31h 49m

$1,097

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 8/1

9:28 am-12:00 pm

3 stops35h 32m

Melbourne

Sat 8/8

1:30 pm-6:17 am

2 stops31h 47m

$1,149

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/19

5:45 pm-7:10 pm

1 stop34h 25m

Sydney Kingsford Smith

Mon 9/7

11:45 am-8:40 am

1 stop35h 55m

$1,301

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 8/15

7:50 pm-9:25 am

2 stops46h 35m

Sydney Kingsford Smith

Thu 9/3

11:45 am-8:40 am

1 stop35h 55m

$1,305

Quickest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 6/21

8:45 am-7:20 am

1 stop31h 35m

Sydney Kingsford Smith

Tue 7/7

9:20 am-2:36 pm

1 stop20h 16m

$1,319

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Thu 6/25

7:45 pm-7:05 am

2 stops44h 20m

Brisbane

Mon 7/6

10:00 am-2:36 pm

1 stop19h 36m

$1,328

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 10/16

3:14 pm-12:05 pm

2 stops31h 51m

Perth

Sun 11/1

11:35 am-6:26 am

2 stops31h 51m

$1,574

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 6/30

5:10 pm-12:05 pm

2 stops29h 55m

Perth

Thu 7/30

10:00 am-12:07 am

2 stops27h 07m

$1,600

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 7/26

3:21 pm-12:25 pm

2 stops32h 04m

Perth

Fri 7/31

10:35 am-5:00 am

2 stops31h 25m

$1,653

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 7/28

5:10 pm-3:00 pm

2 stops30h 50m

Cairns

Fri 8/7

3:45 pm-7:06 am

2 stops30h 21m

$1,702

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 August instead. Flights to Australia in August, while not as cheap as those in November, still average around $138.

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 $1,392 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 $1,126 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 14% 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 02m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 02m

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 June 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 11,651 reviews	Search American Airlines flights
Delta	PriceFrom $229	Free Cancellation	Rating 7.8 8,395 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,129 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 243 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,044 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,777 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,221 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 645 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,731 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,502	Free Cancellation	Rating 7.6 1,358 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.