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$453+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
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 July 11, 2025.

Round-trip from

$880
(American Airlines)

One-way from

$453
(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 July 11, 2025.

This American Airlines deal was found by Cheapflights users on 7/7. 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 8/1911:45 amORD - SYD
1 stop28h 20mAmerican Airlines
Tue 8/269:10 amSYD - ORD
1 stop24h 26mAmerican Airlines
Deal found 7/7$880
This Trip.com deal was found by Cheapflights users on 7/8. 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.
Wed 8/207:05 amORD - SYD
2 stops37h 40mMultiple Airlines
Wed 8/271:15 pmSYD - ORD
2 stops31h 25mMultiple Airlines
Deal found 7/8$897
This Trip.com deal was found by Cheapflights users on 7/10. 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.
Sun 8/244:00 pmORD - PER
2 stops39h 40mMultiple Airlines
Sun 8/319:55 pmPER - ORD
2 stops53h 30mMultiple Airlines
Deal found 7/10$1,035
This CheapTickets deal was found by Cheapflights users on 7/8. 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.
Wed 8/207:05 amORD - BNE
2 stops36h 55mMultiple Airlines
Wed 8/271:50 pmBNE - ORD
2 stops30h 50mMultiple Airlines
Deal found 7/8$1,036
This Trip.com deal was found by Cheapflights users on 7/9. 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.
Wed 8/207:05 amORD - MEL
2 stops36h 45mMultiple Airlines
Wed 8/2712:05 pmMEL - ORD
2 stops32h 35mMultiple Airlines
Deal found 7/9$1,066
This CrystalTravel deal was found by Cheapflights users on 7/9. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:25 pmORD - SYD
1 stop25h 05mANA
Mon 11/179:45 pmSYD - ORD
1 stop26h 35mANA
Deal found 7/9$1,136
This Trip.com deal was found by Cheapflights users on 7/9. 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.
Sat 8/237:05 amORD - ADL
2 stops38h 00mMultiple Airlines
Sat 8/3012:35 pmADL - ORD
2 stops31h 35mMultiple Airlines
Deal found 7/9$1,142
This CheapTickets deal was found by Cheapflights users on 7/10. 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.
Sun 8/247:05 amORD - CBR
2 stops39h 00mMultiple Airlines
Sun 8/3110:50 amCBR - ORD
2 stops33h 50mMultiple Airlines
Deal found 7/10$1,197
This Trip.com deal was found by Cheapflights users on 7/10. 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.
Wed 8/207:05 amORD - OOL
2 stops48h 00mMultiple Airlines
Wed 8/2710:10 amOOL - ORD
2 stops34h 30mMultiple Airlines
Deal found 7/10$1,219
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Wed 11/1910:15 amORD - MEL
1 stop25h 45mAmerican Airlines
Mon 12/112:00 pmMEL - ORD
1 stop28h 00mAmerican Airlines
Deal found 7/7$1,231
This oojo deal was found by Cheapflights users on 7/10. 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.
Tue 8/127:10 amORD - BNE
2 stops34h 20mAir New Zealand
Tue 8/269:45 amBNE - ORD
2 stops28h 30mAir New Zealand
Deal found 7/10$1,269
This BYOjet deal was found by Cheapflights users on 7/8. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/194:30 pmORD - MEL
2 stops27h 20mAir New Zealand
Wed 8/278:35 amMEL - ORD
2 stops35h 26mAir New Zealand
Deal found 7/8$1,270

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 11, 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

Tue 8/19

11:45 am-7:05 am

1 stop28h 20m

Sydney Kingsford Smith

Tue 8/26

9:10 am-6:36 pm

1 stop24h 26m

$880

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/20

7:05 am-11:45 am

2 stops37h 40m

Sydney Kingsford Smith

Wed 8/27

1:15 pm-5:40 am

2 stops31h 25m

$897

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 8/24

4:00 pm-8:40 pm

2 stops39h 40m

Perth

Sun 8/31

9:55 pm-2:25 pm

2 stops53h 30m

$1,035

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Wed 8/20

7:05 am-11:00 am

2 stops36h 55m

Brisbane

Wed 8/27

1:50 pm-5:40 am

2 stops30h 50m

$1,036

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Wed 8/20

7:05 am-10:50 am

2 stops36h 45m

Melbourne

Wed 8/27

12:05 pm-5:40 am

2 stops32h 35m

$1,066

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/31

8:20 pm-7:15 pm

2 stops31h 55m

Sydney Kingsford Smith

Sun 9/14

11:50 am-8:40 am

1 stop35h 50m

$1,140

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Sat 8/23

7:05 am-11:35 am

2 stops38h 00m

Adelaide

Sat 8/30

12:35 pm-5:40 am

2 stops31h 35m

$1,142

ChicagoCanberra

ORD - CBR

ORDCBR

Chicago O'Hare Intl

Sun 8/24

7:05 am-1:05 pm

2 stops39h 00m

Canberra

Sun 8/31

10:50 am-5:40 am

2 stops33h 50m

$1,197

ChicagoCoolangatta

ORD - OOL

ORDOOL

Chicago O'Hare Intl

Wed 8/20

7:05 am-10:05 pm

2 stops48h 00m

Coolangatta Gold Coast

Wed 8/27

10:10 am-5:40 am

2 stops34h 30m

$1,219

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 8/12

7:10 am-8:30 am

2 stops34h 20m

Brisbane

Tue 8/26

9:45 am-11:15 pm

2 stops28h 30m

$1,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,036). Flying from Chicago O'Hare Intl Airport to Australia in December is currently the most expensive (average of $1,625). 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 July 11, 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 July 11, 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
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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
8.6
Very good
65 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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
1,215 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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
898 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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
1,512 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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.
Fiji Airways
8.0
Very good
201 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Entertainment

7.2

Comfort

8.0

Crew

9.0

Boarding

8.7

Overall

8.6

Food

7.7

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 Fiji Airways, with whom users have recently found tickets for as low as $681. However, be on the lookout for offers from ANA and Qatar 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $1,036). Flying from Chicago O'Hare Intl Airport to Australia in December is currently the most expensive (average of $1,625). 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.

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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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$647Average$1,263FlexibilityNo 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$1,310FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,164Average$1,537FlexibilityNo 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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