Cheap flights from Australia to Chicago O'Hare Intl Airport from $891

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 December 2025.

Thu 18/1213:00MEL - ORD
1 stop21h 04mUnited Airlines
Tue 30/1207:05ORD - MEL
1 stop33h 55mUnited Airlines
Deal found 11/12$1,517
Thu 18/1213:00MEL - ORD
2 stops22h 55mUnited Airlines
Thu 25/1218:25ORD - MEL
1 stop22h 35mUnited Airlines
Deal found 11/12$1,592
Mon 22/1211:40BNE - ORD
2 stops32h 57mUnited Airlines
Thu 19/312:50ORD - BNE
2 stops26h 40mUnited Airlines
Deal found 11/12$1,595
Mon 22/1214:55ADL - ORD
2 stops25h 34mUnited Airlines
Wed 28/120:10ORD - ADL
2 stops44h 50mUnited Airlines
Deal found 10/12$1,600
Tue 30/1212:10SYD - ORD
1 stop28h 04mUnited Airlines
Wed 14/118:30ORD - SYD
1 stop21h 35mUnited Airlines
Deal found 10/12$1,724
Tue 23/1212:10SYD - ORD
1 stop19h 45mUnited Airlines
Mon 2/213:55ORD - SYD
2 stops26h 10mUnited Airlines
Deal found 11/12$1,727
Mon 15/1212:10SYD - ORD
2 stops21h 48mUnited Airlines
Fri 9/116:16ORD - SYD
1 stop21h 04mUnited Airlines
Deal found 10/12$1,799
Wed 17/1211:20SYD - ORD
1 stop20h 05mUnited Airlines
Thu 22/116:10ORD - SYD
1 stop23h 55mUnited Airlines
Deal found 10/12$1,801
Thu 25/1212:10SYD - ORD
2 stops21h 49mUnited Airlines
Thu 22/114:36ORD - SYD
2 stops25h 29mUnited Airlines
Deal found 11/12$1,802
Sun 14/1212:10SYD - ORD
1 stop28h 00mUnited Airlines
Fri 2/114:40ORD - SYD
1 stop22h 40mUnited Airlines
Deal found 10/12$1,874
Thu 18/1211:40BNE - ORD
2 stops28h 34mUnited Airlines
Thu 19/318:20ORD - BNE
1 stop21h 10mUnited Airlines
Deal found 11/12$1,895
Thu 18/1211:40BNE - ORD
1 stop29h 29mVirgin Australia
Thu 19/318:20ORD - BNE
1 stop21h 10mVirgin Australia
Deal found 11/12$1,984

Find 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 12 December 2025.

Round-trip from

$1,280

One-way from

$891

Popular in

December

Cheapest in

March

Average price

$2,199
American Airlines
  • American Airlines
  • 17/3-1/4
  • 3 total stops
  • 58h 50m total
  • Australia to Chicago
24/1
  • 24/1
  • 2 total stops
  • 44h 10m total
  • Australia to Chicago
Highest demand for flights based on searches. 19% potential increase in price ($545 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($102 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 12 December 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

Sun 25/1

10:45-14:41

1 stop19h 56m

Chicago O'Hare Intl

Sun 1/2

10:00-08:45

2 stops54h 45m

$1,445

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Sat 24/1

10:45-14:41

1 stop19h 56m

Chicago O'Hare Intl

Sat 31/1

07:15-08:45

2 stops33h 30m

$1,476

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 25/1

21:40-14:41

2 stops33h 31m

Chicago O'Hare Intl

Sun 1/2

13:55-19:10

3 stops36h 45m

$1,500

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 26/1

16:05-20:39

1 stop21h 34m

Chicago O'Hare Intl

Mon 2/2

11:56-05:00

1 stop24h 04m

$1,502

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 26/1

12:00-16:49

1 stop21h 49m

Chicago O'Hare Intl

Mon 2/2

15:10-09:30

1 stop25h 20m

$1,509

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 26/1

13:00-16:57

1 stop20h 57m

Chicago O'Hare Intl

Mon 2/2

14:12-09:30

2 stops26h 18m

$1,518

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 5/2

06:10-16:42

2 stops27h 02m

Chicago O'Hare Intl

Mon 9/2

14:00-19:10

3 stops36h 40m

$1,530

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Sat 24/1

06:05-19:45

3 stops29h 40m

Chicago O'Hare Intl

Sat 31/1

14:40-08:45

2 stops26h 05m

$1,551

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 24/1

08:10-14:41

2 stops23h 31m

Chicago O'Hare Intl

Sat 31/1

15:35-14:15

2 stops29h 40m

$1,556

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 22/5

12:10-22:42

2 stops25h 32m

Chicago O'Hare Intl

Mon 1/6

16:40-10:55

2 stops27h 15m

$1,558

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 58 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 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 $912). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,541). 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 12 December 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 12 December 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.

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Comfort

8.0

Boarding

8.2

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

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 19h 56m. Fly via Air Canada, American Airlines, or United Airlines to get the fastest option. There are 14318 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 cheapest airlines to fly from Australia to Chicago O'Hare Intl Airport one-way?

    The cheapet airlines for a one-way flight from Australia to Chicago O'Hare Intl Airport are Qantas Airways ($566), United Airlines ($904), and American Airlines ($1,049).

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

  • 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 $912). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,541). 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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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 12 December 2025.

Top 10 airlines flying from Australia to O'Hare Intl

Discover the top 10 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$952Average$1,558FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,153Average$1,635FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,160Average$1,679FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,174Average$1,686FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Cathay PacificCheapest$1,461Average$1,989FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
United AirlinesCheapest$1,531Average$2,119FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,578Average$1,707FlexibilityNo cancel feeOn-time80%
Search ANA flights
Japan AirlinesCheapest$1,942Average$2,316FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Virgin AustraliaCheapest$2,151Average$2,737FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qatar AirwaysCheapest$2,451Average$3,129FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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

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

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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.

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