Find flights
When to book
Airlines
FAQs

Cheap flights from Australia to Chicago O'Hare Intl Airport from $685

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

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 7 November 2025.

Round-trip from

$1,259

One-way from

$685

Popular in

December

Cheapest in

March

Average price

$1,777
Air Canada
  • Air Canada
  • 5/5-19/5
  • 3 total stops
  • 51h 14m total
  • Australia to Chicago
Search Deals
18/11
  • 18/11
  • 2 total stops
  • 34h 28m total
  • Australia to Chicago
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($636 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($101 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Australia to O'Hare Intl

Enter your travel dates to find the best prices.

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 7 November 2025.

Mon 10/1110:45BNE - ORD
1 stop19h 56mAir Canada
Tue 25/1107:05ORD - BNE
2 stops33h 40mAir Canada
Deal found 5/11$1,265
Fri 14/1112:10MEL - ORD
2 stops25h 15mAir New Zealand
Fri 28/1110:42ORD - MEL
2 stops29h 43mAir New Zealand
Deal found 7/11$1,413
Sat 8/1107:45SYD - ORD
2 stops29h 40mAir New Zealand
Sat 15/1114:35ORD - SYD
2 stops25h 10mAir New Zealand
Deal found 6/11$1,456
Fri 14/1106:05MEL - ORD
2 stops25h 36mMultiple Airlines
Fri 28/1115:40ORD - MEL
2 stops33h 05mMultiple Airlines
Deal found 5/11$1,483
Sun 9/1100:30BNE - ORD
1 stop28h 25mCathay Pacific
Tue 25/1114:35ORD - BNE
1 stop40h 25mCathay Pacific
Deal found 5/11$1,562
Wed 26/1109:55SYD - ORD
2 stops28h 22mAir New Zealand
Thu 11/1210:45ORD - SYD
2 stops30h 45mAir New Zealand
Deal found 6/11$1,562
Tue 9/1212:00MEL - ORD
1 stop21h 02mQantas Airways
Tue 16/1211:55ORD - MEL
1 stop24h 05mQantas Airways
Deal found 5/11$1,580
Tue 9/1216:05MEL - ORD
1 stop24h 30mAmerican Airlines
Tue 16/1212:05ORD - MEL
2 stops23h 55mAmerican Airlines
Deal found 5/11$1,588
Sat 29/1111:50SYD - ORD
1 stop36h 51mUnited Airlines
Sun 14/1206:55ORD - SYD
1 stop33h 20mUnited Airlines
Deal found 5/11$1,588
Sun 30/1114:05SYD - ORD
1 stop26h 26mAmerican Airlines
Wed 31/1213:39ORD - SYD
1 stop26h 21mAmerican Airlines
Deal found 5/11$1,596
Sun 23/1111:20SYD - ORD
2 stops22h 50mAmerican Airlines
Sun 30/1110:25ORD - SYD
1 stop27h 30mAmerican Airlines
Deal found 5/11$1,602
Sat 15/1108:10MEL - ORD
2 stops23h 31mAir Canada
Sat 29/1113:10ORD - MEL
2 stops32h 35mAir Canada
Deal found 5/11$1,607

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 7 November 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

Tue 17/3

05:05-19:53

2 stops29h 48m

Chicago O'Hare Intl

Wed 1/4

08:40-07:05

2 stops31h 25m

$1,288

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 5/5

10:00-14:49

1 stop19h 49m

Chicago O'Hare Intl

Tue 19/5

15:40-07:05

1 stop24h 25m

$1,291

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 11/3

09:45-16:36

2 stops21h 51m

Chicago O'Hare Intl

Sun 15/3

15:35-07:45

2 stops49h 10m

$1,402

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 17/3

19:40-23:59

1 stop19h 19m

Chicago O'Hare Intl

Wed 1/4

15:16-05:00

1 stop22h 44m

$1,514

PerthChicago

PER - ORD

PERORD

Perth

Tue 27/1

22:30-14:41

2 stops30h 11m

Chicago O'Hare Intl

Tue 10/2

15:40-21:35

2 stops39h 55m

$1,522

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 11/3

10:40-14:47

1 stop19h 07m

Chicago O'Hare Intl

Sun 15/3

21:05-06:30

1 stop42h 25m

$1,573

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 29/11

11:50-07:41

1 stop36h 51m

Chicago O'Hare Intl

Sun 14/12

06:55-09:15

1 stop33h 20m

$1,588

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 30/11

14:05-17:15

1 stop20h 10m

Chicago O'Hare Intl

Sun 14/12

11:45-09:00

1 stop28h 15m

$1,596

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 17/3

12:10-13:55

1 stop40h 45m

Chicago O'Hare Intl

Wed 1/4

16:00-22:25

1 stop39h 25m

$1,605

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 11/3

12:10-13:55

1 stop40h 45m

Chicago O'Hare Intl

Sun 15/3

15:35-23:00

1 stop40h 25m

$1,614

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 results
1
2
3
...
6

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 return 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, May is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $934). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,634). 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 7 November 2025.

It’s typically best to fly out from Australia to Chicago O'Hare Intl Airport at midday. Doing so could potentially save you 9% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Australia to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly return from Australia to O'Hare Intl. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Australia to Chicago O'Hare Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 7 November 2025.
See what other customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Australia to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air New Zealand
8.0
Very Good
526 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Qantas Airways
7.5
Good
929 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
United Airlines
7.4
Good
9,007 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
American Airlines
7.2
Good
11,041 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air Canada
7.1
Good
10,416 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Entertainment

7.5

Overall

8.0

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.

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.

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

    There are many flights that can get you from Australia to Chicago O'Hare Intl Airport in 20h 10m. Fly via Air Canada, United Airlines, or American Airlines to get the fastest option. There are 14851 km between Australia and Chicago O'Hare Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Australia to Chicago O'Hare Intl Airport is Melbourne - Chicago O'Hare Intl. You may also consider Sydney Kingsford Smith - Chicago O'Hare Intl or 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 holiday 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, May is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $934). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,634). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Australia to O'Hare Intl on these airlines

Choose from the following airlines for your flight from Australia to O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 7 November 2025.
Qantas Airways flights from Australia to Chicago O'Hare Intl
Air Canada flights from Australia to Chicago O'Hare Intl

Top 9 airlines flying from Australia to O'Hare Intl

Discover the top 9 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 647,157 searches. Data last updated 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$979Average$1,602FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,182Average$1,679FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,189Average$1,572FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,203Average$1,741FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Cathay PacificCheapest$1,497Average$2,038FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
United AirlinesCheapest$1,562Average$2,241FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,617Average$1,745FlexibilityNo cancel feeOn-time80%
Search ANA flights
Japan AirlinesCheapest$1,990Average$2,373FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Virgin AustraliaCheapest$2,203Average$3,112FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Australia to O'Hare Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to O'Hare Intl from Australia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Australia to O'Hare Intl?

Cheapflights helps you find that perfect flight to O'Hare Intl from Australia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Australia to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Australia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Australia to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Australia to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.