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 47% 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?

Air Canada, Delta, and Qatar Airways 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 April 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.

$497 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.

7:30 am - 12:05 pm

ORD

MEL

37h 35m

2 stops

1:30 pm - 11:27 pm

MEL

ORD

24h 57m

2 stops

$1,050Multiple Airlines

Wed, Apr 22 - Thu, Apr 30

7:30 am - 12:05 pm

ORD

MEL

37h 35m

2 stops

1:30 pm - 5:25 am

MEL

ORD

30h 55m

3 stops

$1,090Multiple Airlines

Wed, Apr 22 - Thu, Apr 30

6:55 am - 12:00 pm

ORD

MEL

38h 05m

3 stops

1:30 pm - 8:32 pm

MEL

ORD

46h 02m

3 stops

$1,097Multiple Airlines

Sat, May 16 - Sat, May 23

6:55 am - 10:40 am

ORD

BNE

36h 45m

3 stops

11:35 am - 11:13 pm

BNE

ORD

50h 38m

3 stops

$1,113Multiple Airlines

Tue, May 19 - Tue, May 26

3:40 pm - 7:20 am

ORD

SYD

24h 40m

1 stop

9:20 am - 2:45 pm

SYD

ORD

20h 25m

1 stop

$1,140Air Canada

Sun, May 24 - Sun, May 31

3:40 pm - 7:05 am

ORD

BNE

24h 25m

1 stop

10:15 am - 2:45 pm

BNE

ORD

19h 30m

1 stop

$1,142Air Canada

Tue, Jun 2 - Tue, Jun 16

4:30 pm - 11:15 am

ORD

ADL

28h 15m

2 stops

6:00 am - 3:52 pm

ADL

ORD

24h 22m

2 stops

$1,370Qantas Airways

Sat, May 16 - Sat, May 23

7:21 pm - 1:40 pm

ORD

ADL

27h 49m

2 stops

6:00 am - 5:57 pm

ADL

ORD

26h 27m

2 stops

$1,382Qantas Airways

Thu, May 14 - Sat, May 23

1:05 pm - 7:50 am

MDW

MEL

27h 45m

2 stops

11:00 am - 6:31 pm

MEL

MDW

23h 31m

2 stops

$1,590Delta

Fri, Sep 25 - Sun, Oct 4

1:49 pm - 7:50 am

MDW

MEL

27h 01m

2 stops

10:00 am - 6:31 pm

MEL

MDW

23h 31m

2 stops

$1,610Delta

Mon, Aug 3 - Wed, Aug 26

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Sep 25

MDW1:05 pmChicago Midway

27h 45m

2 stops

MEL7:50 amMelbourne

Oct 4

MEL11:00 amMelbourne

23h 31m

2 stops

MDW6:31 pmChicago Midway

$1,590

Delta

Aug 5

MDW1:49 pmChicago Midway

26h 01m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 30

SYD9:15 amSydney Kingsford Smith

24h 16m

2 stops

MDW6:31 pmChicago Midway

$1,610

Delta

Sep 1

MDW1:05 pmChicago Midway

26h 45m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 8

SYD9:15 amSydney Kingsford Smith

24h 16m

2 stops

MDW6:31 pmChicago Midway

$1,611

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

May 24

ORD9:14 amChicago O'Hare Intl

30h 51m

2 stops

BNE7:05 amBrisbane

Jun 7

BNE10:00 amBrisbane

38h 34m

2 stops

ORD9:34 amChicago O'Hare Intl

$964

Air Canada

May 25

ORD8:45 amChicago O'Hare Intl

31h 20m

2 stops

BNE7:05 amBrisbane

Jun 8

BNE10:00 amBrisbane

38h 34m

2 stops

ORD9:34 amChicago O'Hare Intl

$967

Air Canada

Apr 29

ORD8:42 amChicago O'Hare Intl

31h 23m

2 stops

BNE7:05 amBrisbane

May 6

BNE10:00 amBrisbane

46h 01m

2 stops

ORD5:01 pmChicago O'Hare Intl

$1,114

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 4/22

7:30 am-12:05 pm

2 stops37h 35m

Melbourne

Thu 4/30

1:30 pm-11:27 pm

2 stops24h 57m

$1,050

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 4/22

7:30 am-12:05 pm

2 stops37h 35m

Melbourne

Thu 4/30

1:30 pm-5:25 am

3 stops30h 55m

$1,090

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 5/16

6:55 am-12:00 pm

3 stops38h 05m

Melbourne

Sat 5/23

1:30 pm-8:32 pm

3 stops46h 02m

$1,097

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 5/19

6:55 am-10:40 am

3 stops36h 45m

Brisbane

Tue 5/26

11:35 am-11:13 pm

3 stops50h 38m

$1,113

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 5/24

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Sun 5/31

9:20 am-2:45 pm

1 stop20h 25m

$1,140

Quickest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 6/2

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Tue 6/16

10:15 am-2:45 pm

1 stop19h 30m

$1,142

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 5/16

4:30 pm-11:15 am

2 stops28h 15m

Adelaide

Sat 5/23

6:00 am-3:52 pm

2 stops24h 22m

$1,370

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Thu 5/14

7:21 pm-1:40 pm

2 stops27h 49m

Adelaide

Sat 5/23

6:00 am-5:57 pm

2 stops26h 27m

$1,382

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Fri 9/25

1:05 pm-7:50 am

2 stops27h 45m

Melbourne

Sun 10/4

11:00 am-6:31 pm

2 stops23h 31m

$1,590

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Mon 8/3

1:49 pm-7:50 am

2 stops27h 01m

Melbourne

Wed 8/26

10:00 am-6:31 pm

2 stops23h 31m

$1,610

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 February is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $1,149. If you aren’t able to travel during the month of February, then book flights to Australia from Chicago during September instead. Flights to Australia in September, while not as cheap as those in February, still average around $1,355.

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 $1,382 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 $1,084 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

Fastest flight time	20h 17m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 17m

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 April 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 11,551 reviews	Search American Airlines flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 10,895 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 239 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,017 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,545 reviews	Search United Airlines flights
Delta	PriceFrom $1,034	Free Cancellation	Rating 7.9 8,387 reviews	Search Delta flights
ANA	PriceFrom $1,177	Free Cancellation	Rating 8.4 1,168 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 625 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,470	Free Cancellation	Rating 7.6 1,248 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.