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$432+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
7月 6 — 7月 131
週日 7/6
週日 7/13
1 adult, Economy
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Cheap 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 7月 1, 2025.

Round-trip from

$852
(Trip.com)

One-way from

$432
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,143
From Chicago O'Hare Intl to Australia
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One-way flight from Chicago O'Hare Intl to Australia
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Highest demand for flights based on searches. 14% potential increase in price ($185 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 7月 1, 2025.

This Trip.com deal was found by Cheapflights users on 6/29. 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.
週三 8/66:40 amORD - SYD
2 stops48h 30mMultiple Airlines
週三 8/131:15 pmSYD - ORD
2 stops31h 45mMultiple Airlines
Deal found 6/29$852
This Trip.com deal was found by Cheapflights users on 7/1. 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.
週五 8/157:05 amORD - MEL
2 stops37h 55mMultiple Airlines
週五 8/221:30 pmMEL - ORD
2 stops31h 10mMultiple Airlines
Deal found 7/1$1,011
This Trip.com deal was found by Cheapflights users on 6/30. 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.
週四 8/147:05 amORD - BNE
2 stops36h 20mMultiple Airlines
週四 8/2111:40 amBNE - ORD
2 stops33h 00mMultiple Airlines
Deal found 6/30$1,109
This Trip.com deal was found by Cheapflights users on 6/29. 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.
週五 8/154:00 pmORD - PER
2 stops39h 40mMultiple Airlines
週四 8/289:55 pmPER - ORD
2 stops53h 30mMultiple Airlines
Deal found 6/29$1,124
This Trip.com deal was found by Cheapflights users on 6/30. 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.
週四 8/147:05 amORD - CNS
2 stops37h 35mMultiple Airlines
週四 8/2112:40 pmCNS - ORD
2 stops32h 00mMultiple Airlines
Deal found 6/30$1,125
This Trip.com deal was found by Cheapflights users on 6/30. 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.
週四 8/147:05 amORD - CBR
2 stops38h 15mMultiple Airlines
週四 8/211:20 pmCBR - ORD
2 stops31h 20mMultiple Airlines
Deal found 6/30$1,128
This CheapTickets deal was found by Cheapflights users on 6/30. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週四 8/147:05 amORD - ADL
2 stops38h 00mMultiple Airlines
週四 8/2112:35 pmADL - ORD
2 stops31h 35mMultiple Airlines
Deal found 6/30$1,135
This oojo deal was found by Cheapflights users on 6/29. 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.
週二 8/266:20 pmORD - MEL
2 stops26h 40mFiji Airways
週二 9/91:25 pmMEL - ORD
2 stops22h 57mFiji Airways
Deal found 6/29$1,257
This eDestinos deal was found by Cheapflights users on 6/29. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 8/133:54 pmORD - MEL
2 stops27h 56mAir New Zealand
週三 8/208:35 amMEL - ORD
2 stops28h 05mAir New Zealand
Deal found 6/29$1,263
This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 10/227:01 pmORD - BNE
2 stops24h 34mFiji Airways
週二 10/2811:35 amBNE - ORD
2 stops24h 40mFiji Airways
Deal found 6/30$1,276
This BestPriceTravel deal was found by Cheapflights users on 6/29. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 9/23:12 pmORD - MEL
1 stop24h 33mQantas Airways
週二 9/169:45 amMEL - ORD
1 stop21h 06mQantas Airways
Deal found 6/29$1,308
This FlightHub deal was found by Cheapflights users on 6/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 8/2511:25 amORD - MEL
2 stops41h 00mTurkish Airlines
週三 9/109:20 pmMEL - ORD
2 stops51h 20mTurkish Airlines
Deal found 6/29$1,320

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 7月 1, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.

Fly from

O'Hare Intl

Fly to

Australia

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

週三 8/6

6:40 am-10:10 pm

2 stops48h 30m

Sydney Kingsford Smith

週三 8/13

1:15 pm-6:00 am

2 stops31h 45m

$852

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

週五 8/15

7:05 am-12:00 pm

2 stops37h 55m

Melbourne

週五 8/22

1:30 pm-5:40 am

2 stops31h 10m

$1,011

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

週四 8/14

7:05 am-10:25 am

2 stops36h 20m

Brisbane

週四 8/21

11:40 am-5:40 am

2 stops33h 00m

$1,109

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

週五 8/15

4:00 pm-8:40 pm

2 stops39h 40m

Perth

週四 8/28

9:55 pm-2:25 pm

2 stops53h 30m

$1,124

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

週四 8/14

7:05 am-11:40 am

2 stops37h 35m

Cairns

週四 8/21

12:40 pm-5:40 am

2 stops32h 00m

$1,125

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

週四 8/14

7:05 am-12:20 pm

2 stops38h 15m

Canberra

週四 8/21

1:20 pm-5:40 am

2 stops31h 20m

$1,128

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

週四 8/14

7:05 am-11:35 am

2 stops38h 00m

Adelaide

週四 8/21

12:35 pm-5:40 am

2 stops31h 35m

$1,135

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

週二 8/26

6:20 pm-12:00 pm

2 stops26h 40m

Melbourne

週二 9/9

1:25 pm-9:22 pm

2 stops22h 57m

$1,257

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

週三 8/13

3:54 pm-10:50 am

2 stops27h 56m

Melbourne

週三 8/20

8:35 am-9:40 pm

2 stops28h 05m

$1,263

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

週三 10/22

7:01 pm-10:35 am

2 stops24h 34m

Brisbane

週二 10/28

11:35 am-9:15 pm

2 stops24h 40m

$1,276

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 60 results
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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, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,039). Flying from Chicago O'Hare Intl Airport to Australia in December is currently the most expensive (average of $1,636). 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.

What is the cheapest time of day to fly from ORD to AU?

Find hourly flight availability from O'Hare Intl to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7月 1, 2025.

When flying from Chicago O'Hare Intl Airport to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 7月 1, 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, EVA Air, and ANA 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 Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very good
64 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
EVA Air
8.4
Very good
1,212 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.4
Very good
892 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very good
1,504 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Emirates
8.1
Very good
3,285 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Entertainment

7.3

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $554. However, be on the lookout for offers from ANA and Fiji Airways, 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 - Brisbane, 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, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,039). Flying from Chicago O'Hare Intl Airport to Australia in December is currently the most expensive (average of $1,636). 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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Alternative routes for O'Hare Intl to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from O'Hare Intl to Australia

Discover the top 9 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 7月 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$647Average$1,264FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$1,144FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$679Average$937FlexibilityNo cancel feeOn-time71%
Fiji AirwaysCheapest$772Average$1,432FlexibilityNo cancel feeOn-time74%
DeltaCheapest$852Average$961FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$953Average$1,311FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,164Average$1,538FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$1,330Average$1,506FlexibilityNo cancel feeOn-time78%
Cathay PacificCheapest$1,468Average$1,543FlexibilityNo cancel feeOn-time72%

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