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O'Hare Intl

$451+ Cheap flights from Australia to O'Hare Intl (ORD)

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
May 19 — May 261
Mon 5/19
Mon 5/26
1 adult, Economy
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Cheap flight deals from Australia to O'Hare Intl

Keep the following information in mind while searching for Australia to O'Hare Intl flight deals. Data was last updated May 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$840
(American Airlines)

One-way from

$451
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$891
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago (CHI) flights.
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From Australia to Chicago O'Hare Intl
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One-way flight from Australia to Chicago O'Hare Intl
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Highest demand for flights based on searches. 17% potential increase in price ($218 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Australia to O'Hare Intl

Cheapest flights from Australia to O'Hare Intl
Explore the most affordable flight options available from Australia to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2025.

This American Airlines deal was found by Cheapflights users on 5/13. 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.
Fri 7/186:00 amBNE - ORD
2 stops23h 17mAmerican Airlines
Mon 8/47:16 amORD - BNE
1 stop31h 09mAmerican Airlines
Deal found 5/13$840
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Wed 7/1611:55 pmBNE - ORD
1 stop29h 30mCathay Pacific
Tue 8/124:00 pmORD - BNE
1 stop28h 05mCathay Pacific
Deal found 5/13$960
This Qantas Airways deal was found by Cheapflights users on 5/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1311:20 amOOL - ORD
2 stops27h 15mMultiple Airlines
Fri 7/45:30 pmORD - OOL
2 stops26h 10mMultiple Airlines
Deal found 5/13$981
This lastminute.com deal was found by Cheapflights users on 5/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:45 amBNE - ORD
1 stop23h 46mQantas Airways
Thu 11/133:24 pmORD - BNE
1 stop21h 36mQantas Airways
Deal found 5/14$991
This United Airlines deal was found by Cheapflights users on 5/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/89:30 amSYD - ORD
2 stops27h 42mUnited Airlines
Mon 6/99:10 amORD - SYD
1 stop30h 50mUnited Airlines
Deal found 5/13$1,011
This United Airlines deal was found by Cheapflights users on 5/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:40 amBNE - ORD
3 stops35h 45mUnited Airlines
Thu 11/137:15 amORD - BNE
1 stop32h 15mUnited Airlines
Deal found 5/14$1,013
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 6/611:00 amADL - ORD
2 stops56h 43mAmerican Airlines
Wed 9/243:15 pmORD - ADL
2 stops28h 40mAmerican Airlines
Deal found 5/14$1,017
This Jettzy deal was found by Cheapflights users on 5/13. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:00 amADL - ORD
2 stops29h 38mMultiple Airlines
Wed 9/243:52 pmORD - ADL
2 stops25h 33mMultiple Airlines
Deal found 5/13$1,023
This Cathay Pacific deal was found by Cheapflights users on 5/14. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1811:55 pmBNE - ORD
1 stop29h 30mMultiple Airlines
Mon 8/44:00 pmORD - BNE
2 stops46h 15mMultiple Airlines
Deal found 5/14$1,034
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/281:15 pmSYD - ORD
2 stops32h 27mMultiple Airlines
Wed 6/48:37 amORD - SYD
2 stops31h 43mMultiple Airlines
Deal found 5/14$1,042
This Qantas Airways deal was found by Cheapflights users on 5/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/26:15 amMEL - ORD
2 stops22h 41mMultiple Airlines
Mon 6/236:53 pmORD - MEL
2 stops24h 42mMultiple Airlines
Deal found 5/14$1,063
This Aunt Betty deal was found by Cheapflights users on 5/13. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/218:45 amSYD - ORD
2 stops29h 28mAir New Zealand
Wed 8/134:50 pmORD - SYD
2 stops24h 55mAir New Zealand
Deal found 5/13$1,094

Cheapflights Fare Finder

Customize your flight search to find flights from Australia to O'Hare Intl 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 May 14, 2025.
Use the filters below to find and compare flights from Australia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Australia

Fly to

O'Hare Intl

Route

Depart

Return

Price

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Fri 7/18

6:00 am-2:17 pm

2 stops23h 17m

Chicago O'Hare Intl

Mon 8/4

7:16 am-5:25 am

1 stop31h 09m

$840

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 7/16

11:55 pm-2:25 pm

1 stop29h 30m

Chicago O'Hare Intl

Tue 8/12

4:00 pm-11:05 am

1 stop28h 05m

$960

CoolangattaChicago

OOL - ORD

OOLORD

Coolangatta Gold Coast

Fri 6/13

11:20 am-11:35 pm

2 stops27h 15m

Chicago O'Hare Intl

Fri 7/4

5:30 pm-10:40 am

2 stops26h 10m

$981

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 6/8

9:30 am-10:12 pm

2 stops27h 42m

Chicago O'Hare Intl

Mon 6/9

9:10 am-7:00 am

1 stop30h 50m

$1,011

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 6/6

11:00 am-5:13 am

2 stops56h 43m

Chicago O'Hare Intl

Wed 9/24

3:15 pm-10:25 am

2 stops28h 40m

$1,017

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 6/6

6:00 am-9:08 pm

2 stops29h 38m

Chicago O'Hare Intl

Wed 9/24

3:52 pm-7:55 am

2 stops25h 33m

$1,023

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Fri 7/18

11:55 pm-2:25 pm

1 stop29h 30m

Chicago O'Hare Intl

Mon 8/4

4:00 pm-5:15 am

2 stops46h 15m

$1,034

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 5/28

1:15 pm-6:42 am

2 stops32h 27m

Chicago O'Hare Intl

Wed 6/4

8:37 am-7:20 am

2 stops31h 43m

$1,042

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 7/21

8:45 am-11:13 pm

2 stops29h 28m

Chicago O'Hare Intl

Wed 8/13

4:50 pm-8:45 am

2 stops24h 55m

$1,094

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Fri 6/13

12:45 pm-11:35 pm

2 stops25h 50m

Chicago O'Hare Intl

Fri 7/4

3:12 pm-10:40 am

2 stops28h 28m

$1,114

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 60 results
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Best time to book a flight from Australia to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Australia 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 Australia to Chicago O'Hare Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $245). Flying from Australia to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 AU to ORD?

Find hourly flight availability from Australia to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Australia to Chicago O'Hare Intl Airport as you normally would.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated May 14, 2025.
To help decide which airline to fly from Australia to Chicago, see what other customers have to say about Air Tahiti Nui, EVA Air and Korean Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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
8.7
Very good
63 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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
1,192 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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.
Korean Air
8.4
Very good
1,073 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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
1,471 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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
8.3
Very good
864 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Crew

9.1

Food

7.8

Overall

8.7

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 Australia to O'Hare Intl. 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 Australia to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $451. American Airlines flights start at $466 while deals on Cathay Pacific start at $640 one-way.

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

    The most popular flight routes from Australia to Chicago O'Hare Intl Airport are Melbourne - Chicago O'Hare Intl, Sydney Kingsford Smith - Chicago O'Hare Intl and Brisbane - Chicago O'Hare Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia to O'Hare Intl 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 Australia to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $245). Flying from Australia to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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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Top 4 airlines flying from Australia to O'Hare Intl

Discover the top 4 airlines that operate flights from Australia to O'Hare Intl. 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 May 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$631Average$894FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$884Average$1,263FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$985Average$1,247FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,080Average$1,463FlexibilityNo cancel feeOn-time69%

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