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$589+ Cheap flights from Australia to Illinois

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
nov 29 — dez 61
sáb 11/29
sáb 12/6
1 adult, Economy
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Cheap flight deals from Australia to Illinois

Keep the following information in mind while searching for Australia to Illinois flight deals. Data was last updated outubro 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$848
(Air Canada)

One-way from

$589
(BYOjet)

Popular in

December

Cheapest in

March

Average price

$1,123
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago (CHI) flights.
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From Australia to Illinois
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One-way flight from Australia to Illinois
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Highest demand for flights based on searches. 21% potential increase in price ($280 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Australia to Illinois

Cheapest flights from Australia to Illinois
Explore the most affordable flight options available from Australia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on outubro 30, 2025.

This BestPriceTravel deal was found by Cheapflights users on 10/27. 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.
ter 11/1111:10 amBNE - ORD
2 stops24h 20mAir New Zealand
sex 11/141:00 pmORD - BNE
2 stops26h 00mAir New Zealand
Deal found 10/27$928
This BestPriceTravel deal was found by Cheapflights users on 10/29. 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.
sex 11/2112:10 pmMEL - ORD
2 stops28h 00mAir New Zealand
sex 12/510:45 amORD - MEL
2 stops31h 10mAir New Zealand
Deal found 10/29$928
This BYOjet deal was found by Cheapflights users on 10/29. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 11/189:55 amSYD - ORD
2 stops26h 35mAir New Zealand
qua 12/310:38 amORD - SYD
2 stops30h 52mAir New Zealand
Deal found 10/29$938
This BYOjet deal was found by Cheapflights users on 10/30. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/1911:45 amSYD - ORD
2 stops24h 45mAir New Zealand
qui 12/412:45 pmORD - SYD
2 stops28h 45mAir New Zealand
Deal found 10/30$941
This Trip.com deal was found by Cheapflights users on 10/30. 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.
qua 11/195:45 pmSYD - ORD
2 stops40h 45mMultiple Airlines
qui 12/46:50 amORD - SYD
1 stop31h 35mMultiple Airlines
Deal found 10/30$956
This American Airlines deal was found by Cheapflights users on 10/29. 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.
seg 11/1711:20 amSYD - ORD
1 stop21h 35mAmerican Airlines
seg 12/11:49 pmORD - SYD
1 stop26h 11mAmerican Airlines
Deal found 10/29$982
This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/1012:30 amBNE - ORD
1 stop28h 25mCathay Pacific
sex 11/142:35 pmORD - BNE
1 stop27h 55mCathay Pacific
Deal found 10/27$1,013
This Qantas Airways deal was found by Cheapflights users on 10/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/174:05 pmMEL - ORD
1 stop22h 16mQantas Airways
qua 12/101:15 pmORD - MEL
1 stop22h 45mQantas Airways
Deal found 10/30$1,022
This Jettzy deal was found by Cheapflights users on 10/30. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/1410:40 pmMEL - ORD
2 stops33h 01mMultiple Airlines
sex 11/281:10 pmORD - MEL
2 stops33h 30mMultiple Airlines
Deal found 10/30$1,032
This American Airlines deal was found by Cheapflights users on 10/30. 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.
sáb 11/111:20 amSYD - ORD
1 stop24h 34mAmerican Airlines
dom 11/91:49 pmORD - SYD
1 stop26h 11mAmerican Airlines
Deal found 10/30$1,034
This American Airlines deal was found by Cheapflights users on 10/30. 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.
seg 11/174:05 pmMEL - ORD
2 stops22h 25mAmerican Airlines
qua 12/108:11 amORD - MEL
1 stop27h 49mAmerican Airlines
Deal found 10/30$1,035
This Air Canada deal was found by Cheapflights users on 10/29. 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.
sex 10/319:45 amBNE - ORD
2 stops46h 25mAir Canada
qui 11/63:40 pmORD - BNE
1 stop25h 05mAir Canada
Deal found 10/29$1,036

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Illinois 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 outubro 30, 2025.
Use the filters below to find and compare flights from Australia to Illinois that are best for you.

Fly from

Australia

Fly to

Illinois

Route

Depart

Return

Price

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

ter 3/17

5:05 am-7:53 pm

2 stops29h 48m

Chicago O'Hare Intl

qua 4/1

7:15 am-7:05 am

2 stops32h 50m

$848

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

qua 3/11

9:45 am-2:41 pm

1 stop19h 56m

Chicago O'Hare Intl

dom 3/15

3:35 pm-7:45 am

2 stops49h 10m

$874

MelbourneChicago

MEL - ORD

MELORD

Melbourne

sex 11/21

12:10 pm-11:10 pm

2 stops28h 00m

Chicago O'Hare Intl

sex 12/5

10:45 am-10:55 am

2 stops31h 10m

$928

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

qua 11/19

11:45 am-7:30 pm

2 stops24h 45m

Chicago O'Hare Intl

qui 12/4

12:45 pm-10:30 am

2 stops28h 45m

$941

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

qua 11/19

5:45 pm-5:30 pm

2 stops40h 45m

Chicago O'Hare Intl

qui 12/4

6:50 am-7:25 am

1 stop31h 35m

$956

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

qui 3/5

6:10 am-7:53 pm

2 stops30h 13m

Chicago O'Hare Intl

seg 3/9

3:40 pm-4:20 pm

2 stops33h 10m

$965

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

ter 3/17

7:40 pm-11:59 pm

1 stop19h 19m

Chicago O'Hare Intl

qua 4/1

3:16 pm-5:00 am

1 stop22h 44m

$980

MelbourneChicago

MEL - ORD

MELORD

Melbourne

sáb 1/17

8:00 am-7:30 pm

3 stops28h 30m

Chicago O'Hare Intl

sex 2/20

3:40 pm-3:35 pm

2 stops30h 55m

$998

MelbourneChicago

MEL - ORD

MELORD

Melbourne

seg 11/17

4:05 pm-9:21 pm

1 stop22h 16m

Chicago O'Hare Intl

qua 12/10

1:15 pm-5:00 am

1 stop22h 45m

$1,022

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

ter 1/20

11:45 am-8:25 pm

2 stops25h 40m

Chicago O'Hare Intl

dom 1/25

3:53 pm-8:45 am

2 stops23h 52m

$1,025

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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

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

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

Currently, May is the cheapest month in which you can book a flight from Australia to Illinois (average of $607). Flying from Australia to Illinois in December is currently the most expensive (average of $1,061). 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 IL?

Find hourly flight availability from Australia to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated outubro 30, 2025.

One of the essential ways to save on airfare from Australia to Illinois is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated outubro 30, 2025.
Peruse reviews from past customers who have flown with Japan Airlines, Qantas Airways, and United Airlines from Australia to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
Japan Airlines
8.3
Very good
1,596 reviews
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
Qantas Airways
7.5
Good
925 reviews
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
United Airlines
7.4
Good
8,996 reviews
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
American Airlines
7.2
Good
11,034 reviews
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
Air Canada
7.1
Good
10,383 reviews
Japan Airlines
8.3
Very good
1,596 reviews

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.

Related info for your journey

Find useful and relevant information for your journey from Australia to Illinois. 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 Illinois?

    A quick flight from Australia to Illinois can take about 19h 19m. Air Canada provides one of the quickest options available for as low as $980. Australia and Illinois are separated by a distance of 8897 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $616 on Air New Zealand. Other airlines that offer cheap prices include Cathay Pacific from $619 and Air Canada from $676 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia to Illinois 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 Illinois?

    Currently, May is the cheapest month in which you can book a flight from Australia to Illinois (average of $607). Flying from Australia to Illinois in December is currently the most expensive (average of $1,061). 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 Australia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Australia to Illinois

Discover the top 5 airlines that operate flights from Australia to Illinois. 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 outubro 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$631Average$900FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$862Average$985FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$884Average$1,159FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$965Average$973FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,080Average$1,415FlexibilityNo cancel feeOn-time69%

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