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Cheap flights from Australia to Chicago O'Hare Intl Airport from $811

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
25 dez — 1 jan1
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 25 novembro 2025.

Round-trip from

$1,556

One-way from

$811

Popular in

December

Cheapest in

March

Average price

$1,788
Air New Zealand
  • Air New Zealand
  • 20/2-8/3
  • 4 total stops
  • 52h 05m total
  • Australia to Chicago
Search Deals
5/3
  • 5/3
  • 2 total stops
  • 42h 58m total
  • Australia to Chicago
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($662 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($106 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 25 novembro 2025.

qui 4/1219:40BNE - ORD
1 stop32h 30mAmerican Airlines
seg 8/1213:15ORD - BNE
1 stop25h 15mAmerican Airlines
Deal found 21/11$1,773
qui 4/1211:40BNE - ORD
2 stops21h 19mUnited Airlines
seg 8/1217:17ORD - BNE
1 stop22h 13mUnited Airlines
Deal found 21/11$2,039
dom 23/1112:10BNE - ORD
1 stop40h 45mCathay Pacific
sáb 29/1114:35ORD - BNE
1 stop40h 25mCathay Pacific
Deal found 22/11$2,178
qui 4/1209:15SYD - ORD
1 stop39h 15mJapan Airlines
seg 8/1217:35ORD - SYD
1 stop44h 15mJapan Airlines
Deal found 23/11$2,240
seg 22/1211:40BNE - ORD
2 stops26h 14mUnited Airlines
ter 30/1209:00ORD - BNE
1 stop30h 30mUnited Airlines
Deal found 22/11$2,307
qua 24/1213:00MEL - ORD
2 stops27h 59mUnited Airlines
qua 31/1218:32ORD - MEL
1 stop21h 58mUnited Airlines
Deal found 24/11$2,364
qui 4/1221:45SYD - ORD
1 stop26h 35mANA
seg 8/1218:05ORD - SYD
2 stops33h 10mANA
Deal found 23/11$2,378
qui 25/1211:50SYD - ORD
1 stop19h 50mUnited Airlines
sex 23/118:29ORD - SYD
1 stop21h 46mUnited Airlines
Deal found 24/11$2,429
qui 25/1214:15SYD - ORD
2 stops36h 10mDelta
sex 23/105:30ORD - SYD
2 stops34h 00mDelta
Deal found 24/11$2,449
qui 4/1211:20SYD - ORD
1 stop22h 34mAmerican Airlines
seg 8/1215:11ORD - SYD
1 stop24h 49mAmerican Airlines
Deal found 22/11$2,499
qui 4/1211:20SYD - ORD
2 stops25h 50mAir Canada
seg 8/1214:00ORD - SYD
2 stops26h 35mAir Canada
Deal found 23/11$2,516
dom 14/1221:45SYD - ORD
1 stop26h 35mANA
seg 29/1218:32ORD - SYD
2 stops46h 58mANA
Deal found 24/11$2,517

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 25 novembro 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

MelbourneChicago

MEL - ORD

MELORD

Melbourne

sex 20/2

12:10-18:55

2 stops23h 45m

Chicago O'Hare Intl

dom 8/3

14:35-10:55

2 stops28h 20m

$1,556

MelbourneChicago

MEL - ORD

MELORD

Melbourne

qui 5/2

10:35-20:25

2 stops26h 50m

Chicago O'Hare Intl

seg 9/2

15:53-10:55

2 stops26h 02m

$1,623

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

ter 17/3

08:00-13:55

2 stops44h 55m

Chicago O'Hare Intl

qua 1/4

16:00-22:25

1 stop39h 25m

$1,666

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

ter 17/3

11:10-21:36

2 stops25h 26m

Chicago O'Hare Intl

qua 1/4

16:00-10:00

2 stops27h 00m

$1,671

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

ter 3/2

11:45-20:25

2 stops25h 40m

Chicago O'Hare Intl

sex 20/2

16:00-08:45

2 stops23h 45m

$1,765

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

sáb 16/5

11:50-21:11

2 stops24h 21m

Chicago O'Hare Intl

sáb 6/6

16:40-08:45

2 stops25h 05m

$1,767

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

dom 26/4

11:50-23:11

2 stops26h 21m

Chicago O'Hare Intl

qua 29/4

16:40-08:45

2 stops25h 05m

$1,774

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

qui 4/12

19:40-17:52

1 stop38h 12m

Chicago O'Hare Intl

seg 8/12

11:55-06:30

1 stop26h 35m

$1,776

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

ter 3/2

11:20-11:06

2 stops40h 46m

Chicago O'Hare Intl

sex 20/2

15:35-09:35

1 stop25h 00m

$1,932

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

qua 29/4

09:20-08:05

2 stops37h 45m

Chicago O'Hare Intl

sex 8/5

08:40-07:20

3 stops31h 40m

$1,941

Flights are sorted by cheapest return flights first.

Deals found on 21/11

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 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 $940). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,621). 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 25 novembro 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 25 novembro 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
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Air New Zealand
8.0
Very Good
536 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Qantas Airways
7.5
Good
943 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
United Airlines
7.4
Good
9,043 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
American Airlines
7.2
Good
11,040 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Air Canada
7.1
Good
10,469 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.

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 23h 45m. Fly via Air New Zealand, Cathay Pacific, or Japan 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 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 $940). Flying from Australia to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,621). 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 25 novembro 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 25 novembro 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$985Average$1,612FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,189Average$1,689FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,196Average$1,581FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,210Average$1,751FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Cathay PacificCheapest$1,506Average$2,050FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
United AirlinesCheapest$1,571Average$2,255FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,626Average$1,755FlexibilityNo cancel feeOn-time80%
Search ANA flights
Japan AirlinesCheapest$2,002Average$2,387FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Virgin AustraliaCheapest$2,217Average$3,131FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights

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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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