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Cheap flights from Australia to Illinois from $934

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

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 22 March 2026.

Sat 18/411:55
BNE
-
ORD
2 stops26h 32m
Multiple Airlines
Sat 25/408:00
ORD
-
BNE
2 stops35h 40m
Multiple Airlines
Deal found 21/3$1,253
Sat 2/513:30
MEL
-
ORD
2 stops31h 05m
Multiple Airlines
Sat 9/515:00
ORD
-
MEL
2 stops30h 00m
Multiple Airlines
Deal found 18/3$1,257
Sun 3/513:30
MEL
-
ORD
2 stops31h 05m
Multiple Airlines
Sun 10/505:15
ORD
-
MEL
2 stops40h 10m
Multiple Airlines
Deal found 19/3$1,270
Thu 16/409:20
SYD
-
ORD
1 stop20h 25m
Air Canada
Wed 29/408:40
ORD
-
SYD
2 stops31h 40m
Air Canada
Deal found 18/3$1,280
Fri 1/511:35
BNE
-
ORD
2 stops26h 52m
Multiple Airlines
Wed 6/507:30
ORD
-
BNE
2 stops36h 05m
Multiple Airlines
Deal found 20/3$1,281
Sun 3/513:15
SYD
-
ORD
2 stops31h 20m
Multiple Airlines
Sun 10/505:15
ORD
-
SYD
2 stops39h 35m
Multiple Airlines
Deal found 18/3$1,281
Fri 1/511:35
BNE
-
ORD
2 stops26h 52m
Multiple Airlines
Fri 8/505:15
ORD
-
BNE
2 stops38h 20m
Multiple Airlines
Deal found 17/3$1,283
Tue 5/509:20
SYD
-
ORD
2 stops44h 33m
Air Canada
Tue 12/515:40
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 21/3$1,283
Thu 16/409:20
SYD
-
ORD
2 stops25h 45m
Air Canada
Thu 23/408:40
ORD
-
SYD
2 stops31h 40m
Air Canada
Deal found 18/3$1,284
Mon 4/509:20
SYD
-
ORD
1 stop20h 25m
Air Canada
Mon 11/508:45
ORD
-
SYD
2 stops31h 35m
Air Canada
Deal found 19/3$1,287
Sun 3/511:35
BNE
-
ORD
2 stops33h 00m
Multiple Airlines
Sun 10/505:15
ORD
-
BNE
2 stops38h 20m
Multiple Airlines
Deal found 18/3$1,293
Tue 5/511:35
BNE
-
ORD
2 stops25h 29m
Multiple Airlines
Tue 12/507:30
ORD
-
BNE
2 stops36h 10m
Multiple Airlines
Deal found 21/3$1,300

Find flight deals from Australia to Illinois

Keep the following information in mind while searching for Australia to Illinois flight deals. Data was last updated 22 March 2026.

Round-trip from

$1,253

One-way from

$934

Popular in

December

Cheapest in

August

Average price

$1,583
18/4-25/4
  • 18/4-25/4
  • 4 total stops
  • 62h 12m total
  • Australia to Illinois
Search Deals
Air New Zealand
  • Air New Zealand
  • 5/9
  • 2 total stops
  • 35h 40m total
  • Australia to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Australia to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Fri 1/5

11:35-23:27

2 stops26h 52m

Chicago O'Hare Intl

Fri 8/5

05:15-10:35

2 stops38h 20m

$1,283

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 30/4

09:20-20:08

2 stops49h 48m

Chicago O'Hare Intl

Thu 7/5

15:40-07:20

1 stop24h 40m

$1,324

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 4/5

19:05-14:45

2 stops34h 40m

Chicago O'Hare Intl

Mon 11/5

15:40-07:05

1 stop24h 25m

$1,330

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 20/5

09:20-12:06

2 stops41h 46m

Lambert-St Louis

Thu 28/5

13:05-07:20

2 stops27h 15m

$1,344

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 4/6

10:15-07:50

2 stops36h 35m

Chicago O'Hare Intl

Mon 8/6

11:05-07:05

2 stops29h 00m

$1,352

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 5/5

06:00-14:45

2 stops23h 45m

Chicago O'Hare Intl

Tue 12/5

15:40-11:05

2 stops28h 25m

$1,391

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 7/5

10:00-20:25

2 stops25h 25m

Lambert-St Louis

Mon 11/5

13:05-07:05

2 stops51h 00m

$1,405

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 3/5

10:00-17:26

2 stops22h 26m

Lambert-St Louis

Sun 10/5

19:01-07:50

2 stops45h 49m

$1,519

MelbourneChicago

MEL - MDW

MELMDW

Melbourne

Tue 5/5

09:45-11:09

2 stops40h 24m

Chicago Midway

Tue 12/5

06:00-06:45

2 stops33h 45m

$1,574

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 1/5

09:20-12:06

2 stops41h 46m

Lambert-St Louis

Fri 8/5

14:35-07:20

2 stops25h 45m

$1,621

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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6

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 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 Illinois

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

Currently, April is the cheapest month in which you can book a flight from Australia to Illinois (average of $954). Flying from Australia to Illinois in December is currently the most expensive (average of $1,510). 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.

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 22 March 2026.
Read reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Australia to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air New Zealand
8.0
Very Good
616 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Qantas Airways
7.5
Good
1,006 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
United Airlines
7.4
Good
9,452 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
American Airlines
7.1
Good
11,488 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air Canada
7.1
Good
10,827 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

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?

    Airlines like Air Canada, Delta, and American Airlines fly from Australia to Illinois in about 22h 26m. The time it takes to get you to your destination can typically vary by up to 27h 22m. There are 15255 km between Australia and Illinois. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $181. Qantas Airways flights start at $659 while deals on Air Canada start at $751 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 holiday 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, April is the cheapest month in which you can book a flight from Australia to Illinois (average of $954). Flying from Australia to Illinois in December is currently the most expensive (average of $1,510). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Australia to Illinois

Discover the top 9 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 647,157 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$963Average$1,815FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,079Average$1,606FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,093Average$1,557FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,110Average$1,454FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$1,257Average$1,939FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapest$1,385Average$1,913FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
ANACheapest$1,495Average$1,614FlexibilityNo cancel feeOn-time80%
Search ANA flights
Japan AirlinesCheapest$1,841Average$2,296FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Virgin AustraliaCheapest$2,162Average$2,189FlexibilityNo 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 Illinois?

Cheapflights helps you search for flights from Australia to Illinois via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Australia to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Australia.

Can Cheapflights find flights from Australia to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Australia to Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Australia to Illinois become cheaper?

Yes, Cheapflights offers price alerts on Australia to Illinois 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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