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$599+ Cheap flights from O'Hare Intl (ORD) to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Australia

Cheapest flights from O'Hare Intl to Australia
Explore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:20 pm
ORD
-
BNE
1 stop31h 10m
Qatar Airways
Fri 9/1810:10 pm
BNE
-
ORD
1 stop31h 55m
Qatar Airways
Deal found 7/28$841
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:20 pm
ORD
-
MEL
1 stop30h 30m
Qatar Airways
Sat 11/711:40 pm
MEL
-
ORD
1 stop31h 50m
Qatar Airways
Deal found 7/28$862
This SmartFares deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:40 pm
ORD
-
BNE
1 stop24h 25m
Air Canada
Tue 9/1510:15 am
BNE
-
ORD
1 stop19h 28m
Air Canada
Deal found 7/25$1,061
This Bravofly deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:49 am
ORD
-
BNE
1 stop26h 11m
Qantas Airways
Tue 9/158:35 pm
BNE
-
ORD
1 stop32h 45m
Qantas Airways
Deal found 7/25$1,077
This Air Canada deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:05 am
ORD
-
BNE
2 stops29h 00m
Air Canada
Wed 9/1610:00 am
BNE
-
ORD
2 stops25h 12m
Air Canada
Deal found 7/26$1,088
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:00 pm
ORD
-
MEL
1 stop23h 00m
Qantas Airways
Mon 9/289:45 am
MEL
-
ORD
1 stop22h 04m
Qantas Airways
Deal found 7/26$1,092
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:57 pm
ORD
-
MEL
1 stop23h 03m
Qantas Airways
Mon 8/249:45 am
MEL
-
ORD
1 stop22h 06m
Qantas Airways
Deal found 7/25$1,105
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:05 pm
ORD
-
MEL
1 stop27h 40m
American Airlines
Tue 9/299:45 am
MEL
-
ORD
1 stop21h 08m
American Airlines
Deal found 7/25$1,108
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:40 pm
ORD
-
MEL
2 stops28h 25m
Air Canada
Mon 9/286:00 am
MEL
-
ORD
2 stops23h 43m
Air Canada
Deal found 7/25$1,112
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:40 pm
ORD
-
MEL
2 stops28h 25m
Air Canada
Mon 8/248:30 pm
MEL
-
ORD
2 stops33h 06m
Air Canada
Deal found 7/25$1,113
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:59 am
ORD
-
MEL
1 stop31h 46m
Qantas Airways
Mon 10/2610:45 pm
MEL
-
ORD
1 stop34h 06m
Qantas Airways
Deal found 7/26$1,114
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:59 am
ORD
-
MEL
1 stop29h 01m
Qantas Airways
Wed 11/1810:45 pm
MEL
-
ORD
1 stop35h 15m
Qantas Airways
Deal found 7/26$1,115

Find flight deals from O'Hare Intl to Australia

Keep the following information in mind while searching for O'Hare Intl to Australia flight deals. Data was last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$841
(Trip.com)

One-way from

$599
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$1,544
Provider with most accurate pricing for Chicago (CHI)-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Sydney Kingsford Smith flights.
Search Deals
From Chicago O'Hare Intl to Australia
Search Deals
One-way flight from Chicago O'Hare Intl to Australia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 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

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 8/10

2:15 pm-7:30 am

2 stops26h 15m

Melbourne

Mon 8/24

10:55 am-4:39 pm

1 stop20h 44m

$1,130

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 9/9

7:40 pm-7:50 am

1 stop21h 10m

Melbourne

Wed 9/16

10:00 am-8:30 pm

2 stops25h 30m

$1,140

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 9/19

9:40 pm-6:30 am

1 stop41h 50m

Brisbane

Fri 10/2

10:30 am-8:22 pm

1 stop24h 52m

$1,199

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Thu 9/17

9:40 pm-6:30 am

1 stop41h 50m

Brisbane

Wed 10/7

10:30 am-7:05 pm

2 stops23h 35m

$1,205

ChicagoCoolangatta

ORD - OOL

ORDOOL

Chicago O'Hare Intl

Tue 9/8

5:05 pm-10:40 am

2 stops26h 35m

Coolangatta Gold Coast

Tue 9/15

7:00 am-9:09 pm

2 stops29h 09m

$1,218

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/12

3:56 pm-7:00 am

2 stops24h 04m

Sydney Kingsford Smith

Thu 8/20

10:20 am-4:36 pm

1 stop21h 16m

$1,220

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Tue 9/8

3:40 pm-1:55 pm

2 stops31h 45m

Adelaide

Tue 9/15

8:00 pm-7:48 pm

3 stops38h 18m

$1,224

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 11/14

9:35 pm-7:00 am

1 stop40h 25m

Sydney Kingsford Smith

Fri 11/20

9:15 am-12:45 pm

1 stop20h 30m

$1,227

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Mon 8/10

3:54 pm-9:25 am

2 stops27h 01m

Adelaide

Wed 8/19

6:00 am-4:51 pm

2 stops25h 21m

$1,240

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 9/20

8:23 am-5:00 am

1 stop29h 37m

Brisbane

Thu 10/1

8:35 pm-3:53 pm

1 stop34h 18m

$1,242

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Australia

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Australia?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,287). Flying from Chicago O'Hare Intl Airport to Australia in July is currently the most expensive (average of $1,768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

The price you pay for your flight from Chicago O'Hare Intl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated July 30, 2026.
Peruse reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Chicago O'Hare Intl Airport to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air New Zealand
8.0
Very good
656 reviews
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Qantas Airways
7.5
Good
1,073 reviews
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
United Airlines
7.4
Good
10,047 reviews
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
American Airlines
7.1
Good
11,842 reviews
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air Canada
7.1
Good
11,407 reviews
Air New Zealand
8.0
Very good
656 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.5

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Australia?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Australia in 21h 10m. Fly via United Airlines, Delta, or Qantas Airways to get the fastest option. Chicago O'Hare Intl Airport and Australia are separated by a distance of 9660 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Australia one-way?

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $441. However, be on the lookout for offers from ANA and United Airlines, as they are both options that can get you from Chicago O'Hare Intl Airport to Australia for a low price.

  • What are the most popular routes from Chicago O'Hare Intl Airport to Australia?

    While some choose either Chicago O'Hare Intl - Melbourne or Chicago O'Hare Intl - Melbourne Avalon, Chicago O'Hare Intl - Sydney Kingsford Smith is the most popular route from Chicago O'Hare Intl Airport to Australia.

  • Can I find deals for flights from O'Hare Intl to Australia that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Australia.

  • Can I find deals for business class flights from O'Hare Intl to Australia?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Australia?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,287). Flying from Chicago O'Hare Intl Airport to Australia in July is currently the most expensive (average of $1,768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from O'Hare Intl to Australia

Discover the top 10 airlines that operate flights from O'Hare Intl to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$261Average$1,131FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$712Average$1,142FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$716Average$1,169FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$837Average$1,518FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$844Average$1,590FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$870Average$1,700FlexibilityNo cancel feeOn-time69%
ANACheapest$1,209Average$1,288FlexibilityNo cancel feeOn-time80%
Air New ZealandCheapest$1,264Average$1,570FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,298Average$2,071FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,560Average$2,003FlexibilityNo cancel feeOn-time72%

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