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$414+ Cheap flights from Chicago (CHI) 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SYD
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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Cheap flight deals from Chicago to Australia

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Australia (AU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janvier 21, 2025.

Round-trip from

$777
(BestPriceTravel)

One-way from

$414
(American Airlines)
From Chicago (CHI) to Australia
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One-way flight from Chicago (CHI) to Australia
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Find flight deals from Chicago to Australia

Cheapest flights from Chicago to Australia
Explore the most affordable flight options available from Chicago to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2025.

This BestPriceTravel deal was found by Cheapflights users on 1/20. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/52:13 pmORD - BNE
1 stop22h 47mQantas Airways
mer. 3/128:05 amBNE - ORD
1 stop20h 01mQantas Airways
Deal found 1/20$777
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 3/63:16 pmORD - BNE
1 stop21h 44mAmerican Airlines
jeu. 3/1310:00 pmBNE - ORD
1 stop23h 25mAmerican Airlines
Deal found 1/19$807
This Flighttix deal was found by Cheapflights users on 1/20. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/512:25 pmORD - BNE
2 stops24h 35mBritish Airways
mer. 3/1910:00 pmBNE - ORD
2 stops22h 20mBritish Airways
Deal found 1/20$816
This Mytrip deal was found by Cheapflights users on 1/21. 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.
mer. 3/54:45 pmORD - BNE
2 stops25h 35mMultiple Airlines
mer. 3/1211:20 amBNE - ORD
2 stops32h 25mMultiple Airlines
Deal found 1/21$842
This Ovago deal was found by Cheapflights users on 1/20. 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.
mar. 2/43:22 pmORD - SYD
1 stop22h 13mQantas Airways
lun. 2/1011:15 amSYD - ORD
1 stop23h 30mQantas Airways
Deal found 1/20$848
This Flighttix deal was found by Cheapflights users on 1/20. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 1/232:14 pmORD - SYD
1 stop24h 11mBritish Airways
mer. 2/511:50 amSYD - ORD
1 stop22h 48mBritish Airways
Deal found 1/20$851
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/282:13 pmORD - SYD
1 stop24h 12mAmerican Airlines
dim. 3/95:25 pmSYD - ORD
1 stop29h 00mAmerican Airlines
Deal found 1/20$856
This Gurufare deal was found by Cheapflights users on 1/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/53:17 pmORD - HBA
2 stops28h 33mQantas Airways
mer. 3/126:15 amHBA - ORD
2 stops27h 08mQantas Airways
Deal found 1/19$880
This CheapTickets.ch deal was found by Cheapflights users on 1/20. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 3/67:00 amORD - SYD
2 stops33h 00mMultiple Airlines
jeu. 3/1311:50 amSYD - ORD
1 stop19h 23mMultiple Airlines
Deal found 1/20$880
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/67:45 pmORD - SYD
2 stops32h 30mANA
mar. 5/278:55 pmSYD - ORD
1 stop26h 45mANA
Deal found 1/20$962
This Kissandfly.com deal was found by Cheapflights users on 1/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 3/62:13 pmORD - CNS
2 stops34h 57mMultiple Airlines
jeu. 3/137:35 amCNS - ORD
2 stops28h 31mMultiple Airlines
Deal found 1/20$1,005
This Ovago deal was found by Cheapflights users on 1/20. 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.
mar. 2/43:22 pmORD - ADL
2 stops24h 58mQantas Airways
mar. 3/47:05 amADL - ORD
2 stops26h 35mQantas Airways
Deal found 1/20$1,005

Find flights from Chicago to Australia within your budget

Customize your flight search to find flights from Chicago 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 janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mer. 3/5

2:13 pm-5:00 am

1 stop22h 47m

Brisbane

mer. 3/12

8:05 am-1:06 pm

1 stop20h 01m

$777

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

jeu. 3/6

3:16 pm-5:00 am

1 stop21h 44m

Brisbane

jeu. 3/13

10:00 pm-6:25 am

1 stop23h 25m

$807

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mer. 3/5

12:25 pm-5:00 am

2 stops24h 35m

Brisbane

mer. 3/19

10:00 pm-5:20 am

2 stops22h 20m

$816

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

mer. 3/5

4:45 pm-10:20 am

2 stops25h 35m

Brisbane

mer. 3/12

11:20 am-4:45 am

2 stops32h 25m

$842

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

mar. 2/4

3:22 pm-6:35 am

1 stop22h 13m

Sydney Kingsford Smith

lun. 2/10

11:15 am-5:45 pm

1 stop23h 30m

$848

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

ven. 2/28

2:13 pm-7:25 am

1 stop24h 12m

Sydney Kingsford Smith

dim. 3/9

5:25 pm-5:25 am

1 stop29h 00m

$856

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

ven. 1/24

8:30 am-6:10 am

1 stop28h 40m

Sydney Kingsford Smith

jeu. 2/6

11:50 am-2:25 pm

1 stop19h 35m

$858

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

dim. 3/9

2:13 pm-7:25 am

1 stop25h 12m

Sydney Kingsford Smith

dim. 3/23

9:25 pm-6:33 am

1 stop25h 08m

$861

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

jeu. 3/6

7:00 am-9:00 am

2 stops33h 00m

Sydney Kingsford Smith

jeu. 3/13

11:50 am-3:13 pm

1 stop19h 23m

$880

ChicagoHobart

ORD - HBA

ORDHBA

Chicago O'Hare Intl

mer. 3/5

3:17 pm-12:50 pm

2 stops28h 33m

Hobart

mer. 3/12

6:15 am-5:23 pm

2 stops27h 08m

$880

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Chicago 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.

Travel insights for flights from Chicago to Australia

Get recent, data-driven insights about flights from Chicago to Australia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Chicago to Australia?

Currently, February is the cheapest month in which you can book a flight from Chicago to Australia (average of $1,051). Flying from Chicago to Australia in December is currently the most expensive (average of $1,643). 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 CHI to AU?

Find hourly flight availability from Chicago 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 janvier 21, 2025.

When flying from Chicago to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 janvier 21, 2025.
Read through reviews of airlines operating flights from Chicago to Australia, such as Delta, Fiji Airways and Qantas Airways. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Korean Air
8.5
Very good
1,039 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

EVA Air
8.4
Very good
1,253 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

ANA
8.4
Very good
852 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Japan Airlines
8.3
Very good
1,449 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Food

7.8

Overall

8.8

Entertainment

7.3

Crew

9.1

Boarding

8.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Chicago to Australia one-way?

    The cheapest airlines for a one-way flight from Chicago to Australia are American Airlines ($414), Qantas Airways ($423), and Fiji Airways ($566).

  • What are the most popular routes from Chicago 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 to Australia.

  • Can I find deals for flights from Chicago to Australia that include hotel bookings?

    Yes. In addition to deals on Chicago to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Australia?

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

  • Can I find deals for business class flights from Chicago to Australia?

    Yes. Cheapflights offers flight deals from Chicago 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 to Australia?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Australia (average of $1,051). Flying from Chicago to Australia in December is currently the most expensive (average of $1,643). 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

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Alternative routes for Chicago 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 Chicago to Australia

Discover the top 10 airlines that operate flights from Chicago 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 janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$618Average$1,383FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$781FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$679Average$954FlexibilityNo cancel feeOn-time71%
DeltaCheapest$851Average$978FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$916Average$1,595FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$953Average$1,405FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$1,138Average$1,402FlexibilityNo cancel feeOn-time72%
Air New ZealandCheapest$1,181Average$1,420FlexibilityNo cancel feeOn-time78%
Singapore AirlinesCheapest$1,421Average$1,704FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,700Average$1,903FlexibilityNo cancel feeOn-time68%
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