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Cheap flights from Chicago O'Hare Intl Airport to Australia from $435

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Australia departing on 4/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:35 pm - 8:45 am
ORD
-
BNE
25h 10m
1 stop
Air Canada Logo
9:45 am - 2:41 pm
BNE
-
ORD
19h 56m
1 stop
$891Air Canada
Tue, Feb 24 - Wed, Mar 11
Air Canada Logo
3:40 pm - 7:05 am
ORD
-
BNE
24h 25m
1 stop
Air Canada Logo
10:00 am - 2:43 pm
BNE
-
ORD
19h 43m
1 stop
$892Air Canada
Tue, Mar 31 - Wed, Apr 22
Air Canada Logo
7:15 am - 8:45 am
ORD
-
BNE
33h 30m
2 stops
Air Canada Logo
9:45 am - 2:41 pm
BNE
-
ORD
19h 56m
1 stop
$895Air Canada
Tue, Feb 24 - Wed, Mar 11
Multiple Airlines Logo
7:29 pm - 7:30 am
ORD
-
SYD
44h 01m
1 stop
Multiple Airlines Logo
1:15 pm - 5:39 am
SYD
-
ORD
31h 24m
2 stops
$946Multiple Airlines
Tue, Mar 31 - Mon, Apr 13
Multiple Airlines Logo
7:29 pm - 7:30 am
ORD
-
SYD
44h 01m
1 stop
Multiple Airlines Logo
1:15 pm - 5:39 am
SYD
-
ORD
31h 24m
2 stops
$950Multiple Airlines
Tue, Mar 31 - Mon, Apr 13
Qantas Airways Logo
4:49 pm - 10:45 pm
ORD
-
MEL
37h 56m
2 stops
Qantas Airways Logo
9:45 am - 5:41 pm
MEL
-
ORD
22h 56m
1 stop
$954Qantas Airways
Thu, Mar 19 - Tue, Apr 7
Qantas Airways Logo
4:49 pm - 5:15 pm
ORD
-
MEL
32h 26m
2 stops
Qantas Airways Logo
9:45 am - 5:14 pm
MEL
-
ORD
22h 29m
1 stop
$955Qantas Airways
Thu, Mar 19 - Tue, Apr 7
Air New Zealand Logo
9:15 pm - 9:45 am
ORD
-
OOL
44h 30m
2 stops
Air New Zealand Logo
10:55 am - 6:14 am
OOL
-
ORD
34h 19m
2 stops
$1,409Air New Zealand
Thu, Mar 5 - Thu, Mar 12
Cathay Pacific Logo
12:20 pm - 10:55 pm
ORD
-
PER
45h 35m
2 stops
Cathay Pacific Logo
12:10 am - 1:55 pm
PER
-
ORD
26h 45m
1 stop
$1,600Cathay Pacific
Tue, Mar 24 - Mon, Mar 30
Air New Zealand Logo
6:20 pm - 11:00 am
ORD
-
HBA
24h 40m
2 stops
Air New Zealand Logo
4:55 pm - 11:28 pm
HBA
-
ORD
46h 33m
3 stops
$1,680Air New Zealand
Tue, Mar 24 - Tue, Mar 31

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
Mar 5
ORD3:35 pmChicago O'Hare Intl
25h 10m
1 stop
BNE8:45 amBrisbane
Mar 13
BNE9:45 amBrisbane
19h 56m
1 stop
ORD2:41 pmChicago O'Hare Intl
$1,003
ANA
Apr 6
ORD5:45 pmChicago O'Hare Intl
34h 30m
1 stop
SYD7:15 pmSydney Kingsford Smith
May 6
SYD8:55 pmSydney Kingsford Smith
26h 45m
1 stop
ORD8:40 amChicago O'Hare Intl
$1,175

Qantas Airways flights from Chicago O'Hare Intl Airport to Australia

Our best Qantas Airways deals on Chicago O'Hare Intl Airport to Australia flight tickets
Qantas Airways
Feb 16
ORD4:45 pmChicago O'Hare Intl
23h 15m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 25
SYD7:05 amSydney Kingsford Smith
26h 32m
2 stops
ORD4:37 pmChicago O'Hare Intl
$941
Qantas Airways
Feb 14
ORD4:45 pmChicago O'Hare Intl
21h 40m
1 stop
SYD7:25 amSydney Kingsford Smith
Feb 20
SYD7:05 amSydney Kingsford Smith
26h 32m
2 stops
ORD4:37 pmChicago O'Hare Intl
$949
Qantas Airways
Feb 10
ORD6:40 pmChicago O'Hare Intl
21h 20m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 18
SYD7:05 amSydney Kingsford Smith
24h 48m
2 stops
ORD2:53 pmChicago O'Hare Intl
$952

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 8, 2026.
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

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/24

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

Wed 3/11

9:45 am-2:41 pm

1 stop19h 56m

$891

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 3/31

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Wed 4/22

10:00 am-2:43 pm

1 stop19h 43m

$892

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/24

7:15 am-8:45 am

2 stops33h 30m

Brisbane

Wed 3/11

9:45 am-2:41 pm

1 stop19h 56m

$895

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 3/31

7:29 pm-7:30 am

1 stop44h 01m

Sydney Kingsford Smith

Mon 4/13

1:15 pm-5:39 am

2 stops31h 24m

$946

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 3/31

7:29 pm-7:30 am

1 stop44h 01m

Sydney Kingsford Smith

Mon 4/13

1:15 pm-5:39 am

2 stops31h 24m

$950

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 3/19

4:49 pm-10:45 pm

2 stops37h 56m

Melbourne

Tue 4/7

9:45 am-5:41 pm

1 stop22h 56m

$954

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 3/19

4:49 pm-5:15 pm

2 stops32h 26m

Melbourne

Tue 4/7

9:45 am-5:14 pm

1 stop22h 29m

$955

ChicagoCoolangatta

ORD - OOL

ORDOOL

Chicago O'Hare Intl

Thu 3/5

9:15 pm-9:45 am

2 stops44h 30m

Coolangatta Gold Coast

Thu 3/12

10:55 am-6:14 am

2 stops34h 19m

$1,409

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 3/24

12:20 pm-10:55 pm

2 stops45h 35m

Perth

Mon 3/30

12:10 am-1:55 pm

1 stop26h 45m

$1,600

ChicagoHobart

ORD - HBA

ORDHBA

Chicago O'Hare Intl

Tue 3/24

6:20 pm-11:00 am

2 stops24h 40m

Hobart

Tue 3/31

4:55 pm-11:28 pm

3 stops46h 33m

$1,680

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

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

What is the cheapest month to fly to Australia?

The month of May is, on average, the cheapest month to fly to Australia from Chicago O'Hare Intl Airport, with most prices found around $850. If you aren’t able to travel during the month of May, then book flights to Australia from Chicago O'Hare Intl Airport during March instead. Flights to Australia in March, while not as cheap as those in May, still average around $853.

How far in advance should I book a flight 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 $1,110 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 $911 on momondo.

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

You could potentially save up to 23% 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

Fastest flight time

21h 11m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Australia takes 21h 11m
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

  • 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?

  • 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
Qantas AirwaysPriceFrom $675Free CancellationRating
7.5
988 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $698Free CancellationRating
7.2
11,250 reviews
Search American Airlines flights
Fiji AirwaysPriceFrom $795Free CancellationRating
8.0
223 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $870Free CancellationRating
7.4
9,251 reviews
Search United Airlines flights
Air CanadaPriceFrom $872Free CancellationRating
7.1
10,697 reviews
Search Air Canada flights
DeltaPriceFrom $935Free CancellationRating
7.9
8,170 reviews
Search Delta flights
ANAPriceFrom $1,177Free CancellationRating
8.4
1,089 reviews
Search ANA flights
Air New ZealandPriceFrom $1,217Free CancellationRating
8.0
582 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,229Free CancellationRating
7.4
3,729 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,470Free CancellationRating
7.6
1,159 reviews
Search Cathay Pacific 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.

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