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Cheap flights from Australia to Chicago O'Hare Intl Airport from $851

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
14 Aug — 21 Aug1
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 15 July 2026.

Wed 12/806:05
SYD
-
ORD
2 stops39h 12m
Multiple Airlines
Wed 19/809:20
ORD
-
SYD
3 stops35h 30m
Multiple Airlines
Deal found 10/7$1,282
Wed 5/809:45
MEL
-
ORD
1 stop25h 15m
Qantas Airways
Mon 17/815:22
ORD
-
MEL
1 stop24h 23m
Qantas Airways
Deal found 14/7$1,305
Tue 11/813:15
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Tue 18/809:20
ORD
-
SYD
3 stops35h 30m
Multiple Airlines
Deal found 14/7$1,308
Mon 3/809:45
MEL
-
ORD
1 stop25h 23m
Qantas Airways
Sat 22/811:49
ORD
-
MEL
1 stop27h 56m
Qantas Airways
Deal found 11/7$1,310
Fri 14/809:45
MEL
-
ORD
1 stop25h 15m
Qantas Airways
Fri 21/821:06
ORD
-
MEL
1 stop42h 39m
Qantas Airways
Deal found 15/7$1,320
Sun 2/811:30
MEL
-
ORD
1 stop27h 37m
Qantas Airways
Wed 19/821:06
ORD
-
MEL
1 stop42h 39m
Qantas Airways
Deal found 14/7$1,321
Thu 16/709:45
MEL
-
ORD
2 stops26h 54m
American Airlines
Thu 30/712:00
ORD
-
MEL
2 stops27h 45m
American Airlines
Deal found 12/7$1,328
Fri 17/709:45
MEL
-
ORD
2 stops28h 45m
American Airlines
Thu 30/715:15
ORD
-
MEL
2 stops24h 30m
American Airlines
Deal found 11/7$1,330
Fri 24/709:45
MEL
-
ORD
1 stop23h 27m
American Airlines
Sun 2/812:29
ORD
-
MEL
1 stop27h 16m
American Airlines
Deal found 13/7$1,341
Tue 25/806:15
SYD
-
ORD
2 stops39h 02m
Multiple Airlines
Thu 10/909:26
ORD
-
SYD
3 stops35h 24m
Multiple Airlines
Deal found 15/7$1,360
Mon 27/713:15
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Wed 12/807:29
ORD
-
SYD
3 stops37h 21m
Multiple Airlines
Deal found 12/7$1,397
Mon 3/813:15
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Tue 18/809:20
ORD
-
SYD
3 stops35h 30m
Multiple Airlines
Deal found 13/7$1,400

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 15 July 2026.

Round-trip from

$1,282

One-way from

$851

Popular in

May

Cheapest in

October

Average price

$1,930
12/8-19/8
  • 12/8-19/8
  • 5 total stops
  • 74h 42m total
  • Australia to Chicago
Search Deals
20/7
  • 20/7
  • 1 total stop
  • 36h 02m total
  • Australia to Chicago
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($200 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 15 July 2026.
Use the filters below to find and compare flights from Australia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 15/8

09:45-15:54

1 stop21h 09m

Chicago O'Hare Intl

Fri 11/9

15:20-06:45

1 stop24h 25m

$1,328

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 6/8

10:55-00:44

2 stops28h 49m

Chicago O'Hare Intl

Tue 18/8

18:20-08:15

1 stop22h 55m

$1,360

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 3/8

10:55-20:40

2 stops24h 45m

Chicago O'Hare Intl

Sat 22/8

16:45-08:15

2 stops24h 30m

$1,360
Fastest return journey

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Wed 26/8

10:55-18:32

1 stop22h 37m

Chicago O'Hare Intl

Wed 2/9

18:20-08:15

1 stop22h 55m

$1,361

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 15/8

09:45-15:54

1 stop21h 09m

Chicago O'Hare Intl

Fri 11/9

17:13-09:30

2 stops25h 17m

$1,368

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 5/11

13:10-13:52

1 stop40h 42m

Chicago O'Hare Intl

Sat 7/11

13:46-06:30

1 stop24h 44m

$1,448

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 12/10

12:20-13:55

1 stop40h 35m

Chicago O'Hare Intl

Mon 19/10

16:15-22:30

1 stop39h 15m

$1,721

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 7/8

06:00-23:30

2 stops32h 00m

Chicago O'Hare Intl

Mon 14/9

15:50-09:25

2 stops27h 05m

$1,747

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 1/10

12:20-13:55

1 stop40h 35m

Chicago O'Hare Intl

Tue 3/11

14:35-13:35

2 stops31h 00m

$1,806

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 23/11

05:00-12:55

2 stops47h 55m

Chicago O'Hare Intl

Tue 1/12

14:35-10:30

1 stop27h 55m

$1,887

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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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, July is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $413). Flying from Australia to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,385). 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.

How far ahead should I book a flight from Australia to Chicago O'Hare Intl Airport?

The price you pay for your flight from Australia to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 15 July 2026.
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
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very Good
653 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,061 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
9,988 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,806 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air Canada
7.1
Good
11,339 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Food

7.5

Crew

8.5

Entertainment

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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 21h 09m. Fly via United Airlines, Qantas Airways, or American Airlines to get the fastest option. There are 15546 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 Sydney Kingsford Smith - Chicago O'Hare Intl. You may also consider Melbourne - 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, July is the cheapest month in which you can book a flight from Australia to Chicago O'Hare Intl Airport (average of $413). Flying from Australia to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,385). 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 15 July 2026.
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 15 July 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$597Average$1,576FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,037Average$1,947FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,083Average$1,736FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,229Average$1,573FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,255Average$1,909FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Japan AirlinesCheapest$1,394Average$2,847FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapest$1,528Average$1,951FlexibilityNo cancel feeOn-time80%
Search ANA flights
Cathay PacificCheapest$1,701Average$1,992FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Virgin AustraliaCheapest$2,171Average$2,199FlexibilityNo 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.

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