Cheap flights from Australia to Illinois from $871

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
27 jan — 3 fev1
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 28 dezembro 2025.

dom 28/1213:00MEL - ORD
1 stop24h 05mUnited Airlines
dom 11/110:40ORD - MEL
2 stops30h 20mUnited Airlines
Deal found 27/12$1,591
dom 28/1213:00MEL - ORD
2 stops24h 25mUnited Airlines
sáb 10/112:53ORD - MEL
2 stops27h 37mUnited Airlines
Deal found 27/12$1,665
dom 28/1213:00MEL - ORD
2 stops22h 55mUnited Airlines
seg 5/115:42ORD - MEL
2 stops25h 18mUnited Airlines
Deal found 27/12$1,891
seg 29/1211:20SYD - STL
2 stops28h 02mAir Canada
qua 31/1216:05STL - SYD
2 stops45h 50mAir Canada
Deal found 25/12$2,027
seg 29/1211:20SYD - ORD
1 stop36h 39mQantas Airways
qua 31/1205:15ORD - SYD
1 stop32h 40mQantas Airways
Deal found 25/12$2,326
seg 29/1207:20PER - ORD
2 stops44h 06mUnited Airlines
ter 13/112:45ORD - PER
2 stops32h 35mUnited Airlines
Deal found 27/12$2,455
seg 29/1212:10SYD - ORD
2 stops23h 35mUnited Airlines
qua 31/1216:20ORD - SYD
1 stop21h 00mUnited Airlines
Deal found 25/12$2,516
ter 30/1213:00MEL - STL
1 stop26h 30mUnited Airlines
qui 1/109:55STL - MEL
2 stops30h 35mUnited Airlines
Deal found 26/12$2,582
dom 28/1210:10MEL - MDW
2 stops29h 12mDelta
dom 11/118:30MDW - MEL
2 stops44h 30mDelta
Deal found 27/12$2,592
ter 30/1210:40SYD - MDW
2 stops22h 40mDelta
qui 5/310:49MDW - SYD
2 stops27h 01mDelta
Deal found 28/12$2,595
seg 29/1216:00SYD - ORD
2 stops43h 50mAir Canada
qua 31/1220:30ORD - SYD
2 stops41h 25mAir Canada
Deal found 25/12$2,671
dom 28/1213:00MEL - ORD
1 stop21h 04mVirgin Australia
sáb 10/120:10ORD - MEL
1 stop44h 20mVirgin Australia
Deal found 27/12$2,780

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 28 dezembro 2025.

Round-trip from

$1,186

One-way from

$871

Popular in

December

Cheapest in

March

Average price

$2,040
Air Canada
  • Air Canada
  • 26/1-2/2
  • 4 total stops
  • 69h 24m total
  • Australia to Illinois
American Airlines
  • American Airlines
  • 14/1
  • 2 total stops
  • 24h 54m total
  • Australia to Illinois
Highest demand for flights based on searches. 19% potential increase in price ($519 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($82 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 28 dezembro 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

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

seg 26/1

10:45-15:29

2 stops44h 44m

Lambert-St Louis

seg 2/2

16:05-08:45

2 stops24h 40m

$1,186

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qui 5/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

seg 9/2

16:15-08:45

2 stops24h 30m

$1,244

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qua 28/1

10:45-15:29

2 stops44h 44m

Lambert-St Louis

sáb 31/1

16:15-08:45

2 stops48h 30m

$1,253

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qui 5/2

19:40-23:59

1 stop20h 19m

Lambert-St Louis

seg 9/2

07:04-05:00

1 stop29h 56m

$1,254

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qua 28/1

19:40-23:59

1 stop20h 19m

Lambert-St Louis

sáb 31/1

18:43-05:00

2 stops42h 17m

$1,254

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

seg 26/1

11:40-09:22

2 stops37h 42m

Lambert-St Louis

seg 2/2

17:00-07:30

1 stop22h 30m

$1,269

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qua 28/1

11:40-15:37

1 stop19h 57m

Lambert-St Louis

sáb 31/1

17:00-07:30

1 stop22h 30m

$1,269

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

qui 5/2

11:40-15:37

1 stop19h 57m

Lambert-St Louis

seg 9/2

17:00-07:30

1 stop22h 30m

$1,271

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

seg 9/2

10:45-14:41

1 stop19h 56m

Chicago O'Hare Intl

seg 16/2

07:15-08:45

2 stops33h 30m

$1,329

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

qui 19/3

19:40-21:15

2 stops40h 35m

Chicago O'Hare Intl

seg 23/3

11:45-05:00

2 stops26h 15m

$1,379

Flights are sorted by cheapest return flights first.

Deals found on 26/12

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 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, May is the cheapest month in which you can book a flight from Australia to Illinois (average of $903). Flying from Australia to Illinois in December is currently the most expensive (average of $1,527). 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 28 dezembro 2025.
Read reviews from past customers who have flown with Air New Zealand, Cathay Pacific, andQantas Airways from Australia to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

Entertainment

7.5

Overall

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

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, American Airlines, and United Airlines fly from Australia to Illinois in about 26h 58m. The time it takes to get you to your destination can typically vary by up to 17h 46m. There are 15546 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 $189. Qantas Airways flights start at $561 while deals on Cathay Pacific start at $980 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, May is the cheapest month in which you can book a flight from Australia to Illinois (average of $903). Flying from Australia to Illinois in December is currently the most expensive (average of $1,527). 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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Top 10 airlines flying from Australia to Illinois

Discover the top 10 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 28 dezembro 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$943Average$1,536FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,143Average$1,624FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,150Average$1,663FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,163Average$1,685FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,315Average$2,119FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapest$1,447Average$2,019FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
ANACheapest$1,563Average$1,691FlexibilityNo cancel feeOn-time80%
Search ANA flights
Virgin AustraliaCheapest$1,715Average$2,780FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Japan AirlinesCheapest$1,924Average$2,363FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Qatar AirwaysCheapest$2,429Average$3,128FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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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