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 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?

Alaska Airlines, Cathay Pacific, 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 October 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.

$580 Cheap Flights from Chicago to Australia in 2026/27

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.

3:35 pm - 1:35 pmORD Chicago O'Hare Intl-MEL Melbourne

29h 00m2 stops Vancouver Intl Sydney Kingsford Smith

8:10 am - 2:32 pmMEL Melbourne-ORD Chicago O'Hare Intl

23h 22m2 stops Brisbane Vancouver Intl

$1,145Air Canada

Thu, Feb 11 - Sat, Feb 20

6:21 am - 12:20 pmORD Chicago O'Hare Intl-MEL Melbourne

36h 59m3 stops Las Vegas Harry Reid Intl Los Angeles Nadi

1:45 pm - 6:10 amMEL Melbourne-ORD Chicago O'Hare Intl

33h 25m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,146Multiple Airlines

Thu, Dec 3 - Wed, Feb 3

7:25 am - 10:25 amORD Chicago O'Hare Intl-BNE Brisbane

35h 00m3 stops Denver Intl Los Angeles Nadi

11:25 am - 5:01 amBNE Brisbane-ORD Chicago O'Hare Intl

33h 36m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,169Multiple Airlines

Mon, Dec 7 - Tue, Dec 15

10:32 am - 9:30 amORD Chicago O'Hare Intl-MEL Melbourne

29h 58m1 stop Los Angeles

12:00 pm - 4:05 pmMEL Melbourne-ORD Chicago O'Hare Intl

21h 05m2 stops Dallas/Fort Worth Fayetteville Northwest Arkansas

$1,185American Airlines

Wed, Nov 11 - Tue, Nov 17

3:29 pm - 9:30 amORD Chicago O'Hare Intl-MEL Melbourne

25h 01m2 stops Denver Intl Los Angeles

10:45 pm - 6:10 amMEL Melbourne-ORD Chicago O'Hare Intl

24h 25m1 stop Los Angeles

$1,185American Airlines

Wed, Mar 3 - Mon, Mar 8

9:04 pm - 9:30 amORD Chicago O'Hare Intl-MEL Melbourne

43h 26m1 stop Los Angeles

10:45 pm - 5:59 pmMEL Melbourne-ORD Chicago O'Hare Intl

36h 14m1 stop Los Angeles

$1,261Qantas Airways

Sat, Nov 14 - Sun, Dec 6

6:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

4:10 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

39h 20m1 stop Doha Hamad Intl

$1,262Qatar Airways

Mon, Feb 8 - Mon, Feb 15

6:50 pm - 11:20 pmORD Chicago O'Hare Intl-MEL Melbourne

35h 30m1 stop Doha Hamad Intl

5:10 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

38h 20m1 stop Doha Hamad Intl

$1,267Qatar Airways

Thu, Nov 12 - Thu, Nov 19

1:30 pm - 9:25 amORD Chicago O'Hare Intl-CBR Canberra

26h 55m2 stops Dallas/Fort Worth Melbourne

8:50 am - 5:24 pmCBR Canberra-ORD Chicago O'Hare Intl

25h 34m2 stops Melbourne Dallas/Fort Worth

$1,300Qantas Airways

Sun, Feb 28 - Sat, Mar 13

3:30 pm - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,358Air Canada

Sun, Nov 29 - Sun, Dec 6

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

11:30 am - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 29m2 stops Manila Ninoy Aquino Intl San Francisco

$1,317Multiple Airlines

Wed, Oct 21 - Mon, Nov 9

6:00 am - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

11:30 am - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

35h 29m2 stops Manila Ninoy Aquino Intl San Francisco

$1,318Multiple Airlines

Wed, Oct 21 - Mon, Nov 9

6:25 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 10m2 stops Houston George Bush Intcntl Auckland Intl

2:05 pm - 10:02 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 57m2 stops Auckland Intl Los Angeles

$1,326Air New Zealand

Fri, Oct 23 - Wed, Nov 4

3:50 pm - 10:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 45m2 stops Los Angeles Auckland Intl

9:55 am - 10:58 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

30h 03m2 stops Auckland Intl Los Angeles

$1,326Air New Zealand

Fri, Oct 23 - Wed, Nov 4

8:40 am - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 40m2 stops Calgary Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,385Air Canada

Wed, Oct 21 - Mon, Nov 9

3:40 pm - 8:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,385Air Canada

Wed, Oct 21 - Mon, Nov 9

5:16 pm - 8:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

46h 49m2 stops Dallas/Fort Worth Melbourne

11:10 am - 3:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 49m1 stop Los Angeles

$1,413Qantas Airways

Fri, Oct 23 - Fri, Oct 30

1:55 pm - 7:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 55m2 stops Detroit Metropolitan Wayne County Los Angeles

10:15 am - 4:41 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 26m2 stops Los Angeles Minneapolis St Paul

$1,754Delta

Tue, Oct 20 - Sat, Oct 24

3:30 pm - 7:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 20m2 stops Minneapolis St Paul Los Angeles

10:15 am - 4:41 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 26m2 stops Los Angeles Minneapolis St Paul

$1,754Delta

Wed, Oct 21 - Sat, Oct 24

8:29 am - 8:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

31h 36m1 stop Los Angeles

6:50 pm - 11:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 40m1 stop Los Angeles

$1,776Qantas Airways

Tue, Oct 20 - Thu, Oct 22

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Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Feb 8

ORD8:40 amChicago O'Hare Intl

32h 05m

2 stops

BNE8:45 amBrisbane

May 3

BNE10:00 amBrisbane

19h 50m

1 stop

ORD2:50 pmChicago O'Hare Intl

$1,038

Air Canada

Nov 16

ORD3:30 pmChicago O'Hare Intl

30h 05m

2 stops

MEL2:35 pmMelbourne

Nov 23

MEL7:10 amMelbourne

24h 27m

2 stops

ORD2:37 pmChicago O'Hare Intl

$1,070

Air Canada

Nov 16

ORD1:57 pmChicago O'Hare Intl

31h 38m

3 stops

MEL2:35 pmMelbourne

Nov 23

MEL7:10 amMelbourne

24h 27m

2 stops

ORD2:37 pmChicago O'Hare Intl

$1,078

Air New Zealand flights from Chicago to Australia

Our best Air New Zealand deals on Chicago to Australia flight tickets

Air New Zealand

Nov 8

ORD7:29 amChicago O'Hare Intl

32h 26m

2 stops

MEL8:55 amMelbourne

Nov 18

MEL8:15 amMelbourne

27h 41m

2 stops

ORD6:56 pmChicago O'Hare Intl

$1,307

Air New Zealand

Jan 24

ORD10:30 amChicago O'Hare Intl

29h 25m

2 stops

MEL8:55 amMelbourne

Feb 1

MEL10:20 amMelbourne

27h 20m

2 stops

ORD8:40 pmChicago O'Hare Intl

$1,308

Air New Zealand

Nov 15

ORD9:35 pmChicago O'Hare Intl

42h 00m

2 stops

SYD8:35 amSydney Kingsford Smith

Dec 12

SYD7:25 pmSydney Kingsford Smith

40h 31m

2 stops

ORD6:56 pmChicago O'Hare Intl

$1,320

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Thu 2/11

3:35 pm-1:35 pm

2 stops29h 00m

Melbourne

Sat 2/20

8:10 am-2:32 pm

2 stops23h 22m

$1,145

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Thu 12/3

6:21 am-12:20 pm

3 stops36h 59m

Melbourne

Wed 2/3

1:45 pm-6:10 am

3 stops33h 25m

$1,146

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 12/7

7:25 am-10:25 am

3 stops35h 00m

Brisbane

Tue 12/15

11:25 am-5:01 am

3 stops33h 36m

$1,169

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Wed 11/11

10:32 am-9:30 am

1 stop29h 58m

Melbourne

Tue 11/17

12:00 pm-4:05 pm

2 stops21h 05m

$1,185

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Wed 3/3

3:29 pm-9:30 am

2 stops25h 01m

Melbourne

Mon 3/8

10:45 pm-6:10 am

1 stop24h 25m

$1,185

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Sat 11/14

9:04 pm-9:30 am

1 stop43h 26m

Melbourne

Sun 12/6

10:45 pm-5:59 pm

1 stop36h 14m

$1,261

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 2/8

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Mon 2/15

4:10 pm-2:30 pm

1 stop39h 20m

$1,262

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Thu 11/12

6:50 pm-11:20 pm

1 stop35h 30m

Melbourne

Thu 11/19

5:10 pm-2:30 pm

1 stop38h 20m

$1,267

ChicagoCanberra

ORD Chicago O'Hare Intl - CBR Canberra

ORDCBR

Chicago O'Hare Intl

Sun 2/28

1:30 pm-9:25 am

2 stops26h 55m

Canberra

Sat 3/13

8:50 am-5:24 pm

2 stops25h 34m

$1,300

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 11/29

3:30 pm-9:35 am

1 stop25h 05m

Sydney Kingsford Smith

Sun 12/6

11:20 am-2:37 pm

1 stop20h 17m

$1,358

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 $1,231. If you aren’t able to travel during the month of February, then book flights to Australia from Chicago during January instead. Flights to Australia in January, while not as cheap as those in February, still average around $1,281.

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 $1,424 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 $1,078 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 9% 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

Best Price Found	$580
Fastest flight time	21h 15m
Direct flights	None

The best one-way flight to Australia from Chicago in the past 72 hours is $580. The best round-trip flight deal from Chicago to Australia found on momondo in the last 72 hours is $1,145.

The fastest flight from Chicago to Australia takes 21h 15m

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 October 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
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,651 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,782 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 260 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,114 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.0 12,178 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.3 10,389 reviews	Search United Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,326 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 675 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,382	Free Cancellation	Rating 7.3 3,712 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,522 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.