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$549+ Cheap flights from O'Hare Intl (ORD) to Australia

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Australia

Keep the following information in mind while searching for O'Hare Intl to Australia flight deals. Data was last updated noviembre 6, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$991
(CrystalTravel)

One-way from

$549
(oojo)

Popular in

December

Cheapest in

August

Average price

$995
Provider with most accurate pricing for Chicago (CHI)-Sydney Kingsford Smith flight deals.
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From Chicago O'Hare Intl to Australia
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One-way flight from Chicago O'Hare Intl to Australia
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Highest demand for flights based on searches. 17% potential increase in price ($207 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from O'Hare Intl to Australia

Cheapest flights from O'Hare Intl to Australia
Explore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/299:04 pmORD - SYD
1 stop42h 56mQantas Airways
mié. 1/287:05 amSYD - ORD
2 stops24h 52mQantas Airways
Deal found 11/4$1,061
This oojo deal was found by Cheapflights users on 11/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/219:04 pmORD - SYD
1 stop41h 21mQantas Airways
sáb. 1/317:05 amSYD - ORD
2 stops24h 52mQantas Airways
Deal found 11/5$1,068
This oojo deal was found by Cheapflights users on 11/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1011:45 amORD - BNE
2 stops51h 45mQantas Airways
lun. 2/27:40 pmBNE - ORD
1 stop20h 19mQantas Airways
Deal found 11/5$1,069
This oojo deal was found by Cheapflights users on 11/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/66:17 pmORD - MEL
1 stop22h 13mQantas Airways
sáb. 12/136:45 amMEL - ORD
2 stops27h 09mQantas Airways
Deal found 11/6$1,072
This oojo deal was found by Cheapflights users on 11/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:17 pmORD - SYD
2 stops44h 18mQantas Airways
mar. 12/2311:20 amSYD - ORD
1 stop26h 49mQantas Airways
Deal found 11/6$1,072
This oojo deal was found by Cheapflights users on 11/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/61:51 pmORD - SYD
2 stops48h 44mQantas Airways
sáb. 12/2011:20 amSYD - ORD
1 stop21h 13mQantas Airways
Deal found 11/5$1,073
This oojo deal was found by Cheapflights users on 11/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:46 pmORD - MEL
1 stop39h 29mQantas Airways
mié. 1/144:40 pmMEL - ORD
2 stops38h 15mQantas Airways
Deal found 11/6$1,074
This Ovago deal was found by Cheapflights users on 11/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/106:17 pmORD - SYD
2 stops45h 53mQantas Airways
mar. 12/2311:20 amSYD - ORD
1 stop21h 56mQantas Airways
Deal found 11/6$1,083
This Mytrip deal was found by Cheapflights users on 11/5. 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.
sáb. 11/158:28 amORD - SYD
3 stops35h 07mMultiple Airlines
sáb. 11/222:00 pmSYD - ORD
3 stops32h 32mMultiple Airlines
Deal found 11/5$1,103
This Vliegwinkel deal was found by Cheapflights users on 11/5. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:30 amORD - SYD
2 stops37h 05mMultiple Airlines
mié. 11/262:00 pmSYD - ORD
2 stops27h 59mMultiple Airlines
Deal found 11/5$1,112
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:50 amORD - SYD
1 stop33h 10mMultiple Airlines
jue. 12/115:45 pmSYD - ORD
1 stop23h 28mMultiple Airlines
Deal found 11/4$1,119
This Air Canada deal was found by Cheapflights users on 11/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/253:40 pmORD - BNE
1 stop25h 05mAir Canada
jue. 12/2510:45 amBNE - ORD
2 stops37h 20mAir Canada
Deal found 11/5$1,133

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Australia 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 noviembre 6, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.

Fly from

O'Hare Intl

Fly to

Australia

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mié. 12/3

10:45 am-6:20 am

1 stop26h 35m

Sydney Kingsford Smith

lun. 12/15

12:10 pm-2:48 pm

1 stop19h 38m

$1,263

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mié. 12/3

9:00 am-6:20 am

1 stop28h 20m

Sydney Kingsford Smith

mié. 12/10

11:20 am-2:25 pm

1 stop20h 05m

$1,263

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mié. 12/3

2:35 pm-6:20 am

1 stop22h 45m

Sydney Kingsford Smith

dom. 12/14

2:00 pm-5:00 pm

1 stop20h 00m

$1,263

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

lun. 12/8

4:10 pm-9:15 am

1 stop24h 05m

Sydney Kingsford Smith

dom. 12/14

12:10 pm-5:00 pm

1 stop21h 50m

$1,263

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mié. 3/25

9:30 am-7:25 am

2 stops29h 55m

Sydney Kingsford Smith

lun. 4/6

9:25 am-8:39 am

2 stops38h 14m

$1,268

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mié. 12/3

7:20 am-8:30 am

2 stops32h 10m

Sydney Kingsford Smith

mar. 12/9

10:40 am-4:45 pm

2 stops23h 05m

$1,268

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mar. 12/2

3:50 pm-8:30 am

2 stops23h 40m

Sydney Kingsford Smith

mié. 12/10

10:40 am-6:40 pm

2 stops25h 00m

$1,268

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mar. 12/2

5:30 am-8:30 am

2 stops34h 00m

Sydney Kingsford Smith

mar. 12/9

10:40 am-4:45 pm

2 stops23h 05m

$1,268

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

sáb. 12/6

9:08 pm-7:00 am

1 stop40h 52m

Sydney Kingsford Smith

mié. 12/10

11:20 am-2:25 pm

1 stop20h 05m

$1,272

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

dom. 3/1

1:10 pm-9:45 pm

3 stops42h 35m

Perth

sáb. 3/14

11:10 pm-8:35 am

2 stops46h 25m

$1,288

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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

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

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

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $198). Flying from Chicago O'Hare Intl Airport to Australia in October is currently the most expensive (average of $835). 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 ORD to AU?

Find hourly flight availability from O'Hare Intl to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 6, 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Australia is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 20% on airfare.

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

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

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

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated noviembre 6, 2025.
Peruse reviews from past customers who have flown with Fiji Airways, Qantas Airways, and United Airlines from Chicago O'Hare Intl Airport to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.1
Very good
209 reviews
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
927 reviews
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,003 reviews
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,040 reviews
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air Canada
7.1
Good
10,410 reviews
Fiji Airways
8.1
Very good
209 reviews

Overall

8.1

Food

7.5

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Australia. 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 Chicago O'Hare Intl Airport to Australia?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Australia in 23h 29m. Fly via United Airlines, Delta, or Qantas Airways to get the fastest option. Chicago O'Hare Intl Airport and Australia are separated by a distance of 9660 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Australia one-way?

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $589. However, be on the lookout for offers from Philippine Airlines and Delta, as they are both options that can get you from Chicago O'Hare Intl Airport to Australia for a low price.

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

    While some choose either Chicago O'Hare Intl - Melbourne or Chicago O'Hare Intl - Brisbane, Chicago O'Hare Intl - Sydney Kingsford Smith is the most popular route from Chicago O'Hare Intl Airport to Australia.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $198). Flying from Chicago O'Hare Intl Airport to Australia in October is currently the most expensive (average of $835). 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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Alternative routes for O'Hare Intl to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from O'Hare Intl to Australia

Discover the top 10 airlines that operate flights from O'Hare Intl to Australia. 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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$673Average$1,338FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$1,193FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$679Average$937FlexibilityNo cancel feeOn-time71%
Fiji AirwaysCheapest$772Average$1,422FlexibilityNo cancel feeOn-time74%
DeltaCheapest$846Average$1,018FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$870Average$1,684FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$872Average$1,270FlexibilityNo cancel feeOn-time67%
Qatar AirwaysCheapest$1,229Average$1,331FlexibilityNo cancel feeOn-time68%
Air New ZealandCheapest$1,264Average$1,531FlexibilityNo cancel feeOn-time78%
Cathay PacificCheapest$1,470Average$2,048FlexibilityNo cancel feeOn-time72%

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