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 O'Hare Intl Airport 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 O'Hare Intl to Australia?

Philippine Airlines, Turkish Airlines, and Cathay Pacific are the most popular carriers operating from Chicago O'Hare Intl to Australia

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Australia?

Prices for flights from Chicago O'Hare Intl Airport to Australia were last updated today.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Australia?

There are 10 operators available for flights from Chicago O'Hare Intl Airport to Australia as of September 2026.

How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Australia.

What documentation or ID do you need to fly to Australia?

The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$520 Cheap Flights from Chicago O'Hare Intl Airport to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 10:25 amORD Chicago O'Hare Intl-BNE Brisbane

35h 55m3 stops Denver Intl Los Angeles Nadi

11:40 am - 5:13 amBNE Brisbane-ORD Chicago O'Hare Intl

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

$1,175Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

10:26 am - 10:25 amORD Chicago O'Hare Intl-BNE Brisbane

32h 59m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

11:40 am - 12:21 amBNE Brisbane-ORD Chicago O'Hare Intl

28h 41m3 stops Nadi Los Angeles Denver Intl

$1,210Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

7:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

4:10 pm - 3:05 pmMEL Melbourne-ORD Chicago O'Hare Intl

37h 55m1 stop Doha Hamad Intl

$1,226Qatar Airways

Mon, Mar 22 - Mon, Apr 5

1:00 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 35m2 stops Los Angeles Auckland Intl

9:55 am - 8:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 42m2 stops Auckland Intl Los Angeles

$1,248Air New Zealand

Mon, Nov 2 - Mon, Nov 16

6:55 am - 8:55 amORD Chicago O'Hare Intl-MEL Melbourne

34h 00m2 stops Houston George Bush Intcntl Auckland Intl

12:10 pm - 12:59 amMEL Melbourne-ORD Chicago O'Hare Intl

29h 49m2 stops Auckland Intl Los Angeles

$1,265Air New Zealand

Sun, Oct 25 - Mon, Nov 9

4:25 pm - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 50m1 stop Tokyo Haneda

12:25 pm - 5:05 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

32h 40m2 stops Tokyo Haneda Los Angeles

$1,285ANA

Sun, Feb 28 - Mon, Mar 15

4:25 pm - 8:15 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 50m1 stop Tokyo Haneda

9:45 pm - 5:05 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

48h 20m2 stops Tokyo Haneda Los Angeles

$1,285ANA

Fri, Feb 26 - Sun, Mar 7

8:45 am - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

31h 20m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:45 am - 8:52 pmBNE Brisbane-ORD Chicago O'Hare Intl

25h 07m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,308Air Canada

Sun, Oct 18 - Sun, Nov 1

3:40 pm - 7:05 amORD Chicago O'Hare Intl-BNE Brisbane

24h 25m1 stop Vancouver Intl

10:45 am - 3:37 pmBNE Brisbane-ORD Chicago O'Hare Intl

19h 52m1 stop Vancouver Intl

$1,308Air Canada

Sun, Oct 18 - Sun, Nov 1

7:50 pm - 3:55 pmORD Chicago O'Hare Intl-ADL Adelaide

28h 35m1 stop Doha Hamad Intl

8:40 am - 2:30 pmADL Adelaide-ORD Chicago O'Hare Intl

46h 20m2 stops Melbourne Doha Hamad Intl

$1,332Qatar Airways

Tue, Oct 27 - Tue, Nov 3

Cheap last minute flights

Enter your travel dates to find the best prices.

9:10 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 50m2 stops Los Angeles Manila Ninoy Aquino Intl

11:15 am - 5:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 25m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,327Multiple Airlines

Sat, Oct 3 - Sun, Oct 11

7:03 pm - 8:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 57m2 stops Los Angeles Manila Ninoy Aquino Intl

10:15 am - 5:59 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 44m2 stops Manila Ninoy Aquino Intl Los Angeles

$1,541Multiple Airlines

Mon, Sep 28 - Sat, Oct 3

5:45 pm - 9:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Tokyo Haneda

9:45 pm - 8:40 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 55m1 stop Tokyo Haneda

$1,606ANA

Mon, Sep 28 - Wed, Oct 14

5:45 pm - 7:10 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 25m1 stop Tokyo Haneda

12:45 pm - 4:45 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

32h 00m2 stops Tokyo Haneda Los Angeles

$1,612ANA

Mon, Sep 28 - Wed, Oct 14

5:50 pm - 7:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 15m1 stop Los Angeles

1:00 pm - 9:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 30m1 stop Dallas/Fort Worth

$1,648American Airlines

Mon, Sep 28 - Wed, Oct 14

1:51 pm - 6:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 59m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:15 am - 8:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 15m2 stops Los Angeles Detroit Metropolitan Wayne County

$1,657Delta

Mon, Sep 28 - Wed, Oct 14

7:45 am - 6:50 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

32h 05m2 stops Salt Lake City Los Angeles

10:15 am - 5:50 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 35m1 stop Los Angeles

$1,657Delta

Mon, Sep 28 - Wed, Oct 14

6:25 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 30m1 stop San Francisco

10:55 am - 9:42 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 47m2 stops Auckland Intl Houston George Bush Intcntl

$1,690Air New Zealand

Mon, Sep 28 - Wed, Sep 30

6:25 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 30m1 stop San Francisco

8:55 am - 11:26 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 31m2 stops Auckland Intl Houston George Bush Intcntl

$1,692Air New Zealand

Wed, Sep 30 - Fri, Oct 2

3:20 pm - 8:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 45m1 stop Los Angeles

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

20h 40m1 stop Los Angeles

$1,748American Airlines

Sat, Oct 3 - Sun, Oct 11

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Air New Zealand flights from Chicago O'Hare Intl Airport to Australia

Our best Air New Zealand deals on Chicago O'Hare Intl Airport to Australia flight tickets

Air New Zealand

Nov 2

ORD1:00 pmChicago O'Hare Intl

26h 35m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 16

SYD9:55 amSydney Kingsford Smith

27h 42m

2 stops

ORD8:37 pmChicago O'Hare Intl

$1,248

Air New Zealand

Oct 25

ORD6:55 amChicago O'Hare Intl

34h 00m

2 stops

MEL8:55 amMelbourne

Nov 9

MEL12:10 pmMelbourne

29h 49m

2 stops

ORD12:59 amChicago O'Hare Intl

$1,265

Air New Zealand

Nov 10

ORD9:57 pmChicago O'Hare Intl

41h 38m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 24

SYD7:30 amSydney Kingsford Smith

38h 31m

2 stops

ORD5:01 amChicago O'Hare Intl

$1,267

ANA flights from Chicago O'Hare Intl Airport to Australia

Our best ANA deals on Chicago O'Hare Intl Airport to Australia flight tickets

ANA

Feb 26

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Mar 7

SYD9:45 pmSydney Kingsford Smith

48h 20m

2 stops

ORD5:05 amChicago O'Hare Intl

$1,285

ANA

Feb 26

ORD8:00 pmChicago O'Hare Intl

31h 15m

2 stops

SYD8:15 pmSydney Kingsford Smith

Mar 7

SYD9:45 pmSydney Kingsford Smith

48h 20m

2 stops

ORD5:05 amChicago O'Hare Intl

$1,289

ANA

Nov 16

ORD7:00 amChicago O'Hare Intl

44h 15m

2 stops

SYD8:15 pmSydney Kingsford Smith

Nov 23

SYD9:45 pmSydney Kingsford Smith

48h 35m

2 stops

ORD5:20 amChicago O'Hare Intl

$1,316

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 11/9

6:30 am-10:25 am

3 stops35h 55m

Brisbane

Mon 11/16

11:40 am-5:13 am

3 stops33h 33m

$1,175

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Mon 10/26

10:26 am-10:25 am

3 stops32h 59m

Brisbane

Mon 11/2

11:40 am-12:21 am

3 stops28h 41m

$1,210

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 3/22

7:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Mon 4/5

4:10 pm-3:05 pm

1 stop37h 55m

$1,226

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 11/2

1:00 pm-8:35 am

2 stops26h 35m

Sydney Kingsford Smith

Mon 11/16

9:55 am-8:37 pm

2 stops27h 42m

$1,248

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Sun 10/25

6:55 am-8:55 am

2 stops34h 00m

Melbourne

Mon 11/9

12:10 pm-12:59 am

2 stops29h 49m

$1,265

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 2/28

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Mon 3/15

12:25 pm-5:05 am

2 stops32h 40m

$1,285

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 2/26

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Sun 3/7

9:45 pm-5:05 am

2 stops48h 20m

$1,285

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Sun 10/18

8:45 am-7:05 am

2 stops31h 20m

Brisbane

Sun 11/1

10:45 am-8:52 pm

2 stops25h 07m

$1,308

Quickest round-trip

ChicagoBrisbane

ORD Chicago O'Hare Intl - BNE Brisbane

ORDBNE

Chicago O'Hare Intl

Sun 10/18

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Sun 11/1

10:45 am-3:37 pm

1 stop19h 52m

$1,308

ChicagoAdelaide

ORD Chicago O'Hare Intl - ADL Adelaide

ORDADL

Chicago O'Hare Intl

Tue 10/27

7:50 pm-3:55 pm

1 stop28h 35m

Adelaide

Tue 11/3

8:40 am-2:30 pm

2 stops46h 20m

$1,332

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 O'Hare Intl Airport 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 January is, on average, the cheapest month to fly to Australia from Chicago O'Hare Intl Airport, with most prices found around $1,215. If you aren’t able to travel during the month of January, then book flights to Australia from Chicago O'Hare Intl Airport during February instead. Flights to Australia in February, while not as cheap as those in January, still average around $1,237.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Australia?

You are more likely to see cheaper flights to Australia from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,427 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago O'Hare Intl Airport for as low as $1,153 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Australia flights?

You could potentially save up to 9% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Australia flight.

Cheap Chicago O'Hare Intl Airport to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Australia

Best Price Found	$520
Fastest flight time	21h 37m
Direct flights	None

The best one-way flight to Australia from Chicago O'Hare Intl Airport in the past 72 hours is $520. The best round-trip flight deal from Chicago O'Hare Intl Airport to Australia found on momondo in the last 72 hours is $1,175.

The fastest flight from Chicago O'Hare Intl Airport to Australia takes 21h 37m

There are no direct flights from Chicago O'Hare Intl Airport to Australia. There are no popular flight routes from Chicago O'Hare Intl Airport to Australia.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Australia

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Australia?
Prices for flights from Chicago O'Hare Intl Airport to Australia were last updated today.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Australia?
There are 10 operators available for flights from Chicago O'Hare Intl Airport to Australia as of September 2026.
How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Australia

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Australia with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,607 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,700 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 259 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $824	Free Cancellation	Rating 7.0 12,099 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 10,248 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,319 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 670 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,497 reviews	Search Cathay Pacific flights
Qatar Airways	PriceFrom $1,581	Free Cancellation	Rating 7.3 3,730 reviews	Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Australia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Chicago to Australia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Australia from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Australia?

Once all potential Chicago to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Australia right now. Can momondo alert me if prices change?

Price alerts on flights to Australia from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.