How long is the flight from Australia to Illinois?

Airlines like Delta, Air Canada, and American Airlines fly from Australia to Illinois in about 27h 27m. The time it takes to get you to your destination can typically vary by up to 21h 33m. There are 15255 km between Australia and Illinois. This flight may include one or multiple stops. Find deals

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 $193. Qantas Airways flights start at $572 while deals on Cathay Pacific start at $1,000 one-way. Find deals

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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.

$877+ Flights from Australia to Illinois

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 4 December 2025.

Thu 4/1210:45BNE - ORD

1 stop19h 56mAir Canada

Mon 8/1207:05ORD - BNE

2 stops57h 40mAir Canada

Deal found 1/12$1,396

Thu 4/1209:40BNE - ORD

2 stops37h 05mAmerican Airlines

Mon 8/1212:10ORD - BNE

2 stops24h 50mAmerican Airlines

Deal found 1/12$1,401

Wed 3/1211:20SYD - ORD

1 stop21h 42mAmerican Airlines

Wed 31/1215:13ORD - SYD

1 stop24h 47mAmerican Airlines

Deal found 2/12$1,491

Wed 3/1211:20SYD - ORD

2 stops37h 40mAir Canada

Wed 31/1212:50ORD - SYD

2 stops27h 45mAir Canada

Deal found 2/12$1,518

Sun 7/1217:45SYD - STL

1 stop23h 12mQantas Airways

Sun 14/1213:20STL - SYD

1 stop24h 35mQantas Airways

Deal found 2/12$1,571

Sun 7/1211:20SYD - STL

2 stops25h 07mAmerican Airlines

Sun 14/1213:20STL - SYD

2 stops26h 40mAmerican Airlines

Deal found 2/12$1,572

Thu 4/1210:40SYD - MDW

2 stops30h 07mDelta

Mon 8/1218:40MDW - SYD

2 stops44h 50mDelta

Deal found 30/11$1,803

Thu 25/1211:20SYD - ORD

1 stop20h 12mUnited Airlines

Fri 23/114:40ORD - SYD

1 stop25h 35mUnited Airlines

Deal found 2/12$1,873

Wed 24/1211:50SYD - ORD

1 stop27h 47mUnited Airlines

Fri 2/118:25ORD - SYD

1 stop21h 50mUnited Airlines

Deal found 1/12$1,875

Thu 25/1211:20SYD - ORD

1 stop36h 39mAmerican Airlines

Fri 23/111:44ORD - SYD

2 stops27h 31mAmerican Airlines

Deal found 2/12$1,908

Fri 5/1206:00MEL - STL

2 stops34h 57mQantas Airways

Tue 9/1217:30STL - MEL

2 stops35h 20mQantas Airways

Deal found 3/12$1,990

Thu 25/1211:20SYD - ORD

1 stop20h 21mAir Canada

Fri 23/115:35ORD - SYD

1 stop25h 00mAir Canada

Deal found 3/12$2,070

Best flights from Australia to Illinois
Discover carefully curated flight deals from Australia to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 December 2025.

Sun 1/210:10MEL - STL

2 stops27h 27mDelta

Mon 9/206:00STL - MEL

2 stops33h 00mDelta

Deal found 2/12$1,318

Wed 11/309:45BNE - ORD

2 stops49h 00mAir Canada

Sat 28/315:35ORD - BNE

1 stop24h 30mAir Canada

Deal found 2/12$1,330

Wed 11/305:05BNE - ORD

2 stops24h 36mMultiple Airlines

Sat 28/314:00ORD - BNE

2 stops26h 05mMultiple Airlines

Deal found 2/12$1,371

Mon 2/216:05MEL - STL

1 stop20h 24mAmerican Airlines

Mon 9/209:34STL - MEL

2 stops30h 56mAmerican Airlines

Deal found 2/12$1,389

Tue 17/319:40BNE - ORD

1 stop19h 06mQantas Airways

Wed 1/413:40ORD - BNE

1 stop24h 20mQantas Airways

Deal found 2/12$1,477

Wed 4/311:30MEL - ORD

1 stop20h 15mUnited Airlines

Sun 8/321:10ORD - MEL

1 stop43h 20mUnited Airlines

Deal found 1/12$1,542

Sat 16/511:55SYD - ORD

2 stops24h 16mAir New Zealand

Sat 6/616:40ORD - SYD

2 stops25h 05mAir New Zealand

Deal found 3/12$1,759

Tue 17/312:10BNE - ORD

1 stop40h 45mCathay Pacific

Wed 1/416:00ORD - BNE

1 stop39h 25mCathay Pacific

Deal found 3/12$1,773

Mon 1/621:35PER - ORD

1 stop30h 20mANA

Tue 28/711:50ORD - PER

1 stop42h 40mANA

Deal found 2/12$1,990

Fri 30/110:10MEL - STL

2 stops30h 27mDelta

Wed 11/207:10STL - MEL

2 stops31h 50mDelta

Deal found 2/12$1,318

Tue 17/308:40BNE - ORD

2 stops38h 40mAmerican Airlines

Wed 1/416:45ORD - BNE

1 stop21h 15mAmerican Airlines

Deal found 2/12$1,401

Wed 4/210:10MEL - STL

2 stops27h 27mDelta

Wed 11/213:00STL - MEL

2 stops26h 00mDelta

Deal found 2/12$1,318

Fri 1/509:20SYD - STL

2 stops44h 56mAir Canada

Fri 29/513:30STL - SYD

2 stops50h 50mAir Canada

Deal found 2/12$1,483

Wed 21/122:30PER - ORD

2 stops30h 11mMultiple Airlines

Mon 9/214:00ORD - PER

3 stops33h 50mMultiple Airlines

Deal found 3/12$1,562

Wed 4/210:10MEL - STL

2 stops28h 28mDelta

Tue 10/217:04STL - MEL

2 stops45h 56mDelta

Deal found 2/12$1,318

Fri 15/510:55MEL - ORD

2 stops22h 59mUnited Airlines

Mon 8/614:25ORD - MEL

2 stops26h 05mUnited Airlines

Deal found 2/12$1,617

Fri 1/512:00SYD - STL

1 stop21h 17mQantas Airways

Fri 29/519:47STL - SYD

1 stop20h 08mQantas Airways

Deal found 2/12$1,648

Mon 16/216:45PER - ORD

2 stops35h 56mAir Canada

Sat 21/215:35ORD - PER

2 stops33h 55mAir Canada

Deal found 2/12$1,556

Fri 30/110:10MEL - STL

2 stops27h 27mDelta

Tue 10/217:04STL - MEL

2 stops45h 56mDelta

Deal found 2/12$1,321

Thu 14/510:55MEL - ORD

1 stop22h 43mUnited Airlines

Fri 5/614:18ORD - MEL

2 stops26h 57mUnited Airlines

Deal found 2/12$1,617

Sat 16/509:10SYD - ORD

1 stop21h 46mAmerican Airlines

Sat 6/617:36ORD - SYD

2 stops22h 29mAmerican Airlines

Deal found 2/12$1,626

Sat 14/223:10PER - ORD

2 stops29h 31mMultiple Airlines

Thu 19/215:35ORD - PER

2 stops34h 20mMultiple Airlines

Deal found 3/12$1,692

Sun 1/210:10MEL - STL

2 stops39h 43mDelta

Wed 11/209:59STL - MEL

2 stops29h 01mDelta

Deal found 2/12$1,321

Fri 15/509:30MEL - ORD

1 stop22h 10mUnited Airlines

Sat 6/621:39ORD - MEL

1 stop43h 36mUnited Airlines

Deal found 2/12$1,617

Tue 17/305:05BNE - ORD

3 stops29h 40mAir Canada

Wed 1/408:40ORD - BNE

2 stops31h 25mAir Canada

Deal found 2/12$1,638

Fri 1/509:10SYD - STL

1 stop29h 06mAmerican Airlines

Fri 29/519:47STL - SYD

1 stop20h 08mAmerican Airlines

Deal found 1/12$1,645

Sun 15/221:55PER - ORD

2 stops45h 06mANA

Thu 19/216:25ORD - PER

1 stop37h 45mANA

Deal found 2/12$2,082

Fri 30/110:10MEL - STL

2 stops27h 33mDelta

Sat 7/217:56STL - MEL

2 stops69h 04mDelta

Deal found 2/12$1,324

Sat 16/510:55MEL - ORD

2 stops23h 48mUnited Airlines

Sat 6/621:39ORD - MEL

1 stop43h 36mUnited Airlines

Deal found 2/12$1,617

Thu 19/222:55PER - ORD

3 stops34h 50mAir Canada

Mon 23/214:00ORD - PER

3 stops40h 20mAir Canada

Deal found 1/12$1,688

Last-minute flights from Australia to Illinois
Discover last-minute flight deals from Australia to Illinois. Data last updated 4 December 2025 and is based on user searches.

Thu 4/1210:45BNE - ORD

1 stop19h 56mAir Canada

Mon 8/1207:05ORD - BNE

2 stops57h 40mAir Canada

Deal found 1/12$1,396

Thu 4/1209:40BNE - ORD

2 stops37h 05mAmerican Airlines

Mon 8/1212:10ORD - BNE

2 stops24h 50mAmerican Airlines

Deal found 1/12$1,401

Sat 17/118:50MEL - ORD

2 stops36h 51mAir Canada

Fri 20/215:35ORD - MEL

2 stops31h 00mAir Canada

Deal found 2/12$1,459

Tue 20/111:20SYD - ORD

1 stop20h 21mAir Canada

Tue 27/115:35ORD - SYD

2 stops30h 05mAir Canada

Deal found 1/12$1,416

Tue 20/111:20SYD - ORD

1 stop20h 37mQantas Airways

Tue 27/114:15ORD - SYD

1 stop24h 10mQantas Airways

Deal found 1/12$1,477

Thu 29/112:00MEL - STL

1 stop28h 59mAmerican Airlines

Fri 6/207:04STL - MEL

1 stop33h 26mAmerican Airlines

Deal found 2/12$1,389

Thu 29/116:05MEL - STL

2 stops24h 07mAmerican Airlines

Wed 11/211:55STL - MEL

1 stop24h 05mAmerican Airlines

Deal found 2/12$1,392

Thu 29/111:30MEL - STL

2 stops22h 25mUnited Airlines

Sat 7/216:42STL - MEL

2 stops23h 48mUnited Airlines

Deal found 2/12$1,407

Thu 29/111:30MEL - STL

2 stops23h 13mUnited Airlines

Thu 5/211:20STL - MEL

2 stops29h 10mUnited Airlines

Deal found 2/12$1,412

Fri 30/110:10MEL - STL

2 stops30h 27mDelta

Mon 9/206:00STL - MEL

2 stops33h 00mDelta

Deal found 2/12$1,318

Fri 30/110:10MEL - STL

2 stops24h 40mDelta

Thu 5/218:57STL - MEL

2 stops44h 03mDelta

Deal found 2/12$1,321

Fri 30/110:10MEL - STL

2 stops27h 33mDelta

Sat 7/217:56STL - MEL

2 stops69h 04mDelta

Deal found 2/12$1,324

One-way flights from Australia to Illinois
Search for one-way flight options from Australia to Illinois. Find affordable one-way fares based on user searches. Data last updated 4 December 2025.

Wed 14/110:10MEL - STL

2 stops30h 15mDelta

Deal found 3/12$877

Wed 14/116:05MEL - STL

2 stops24h 07mAmerican Airlines

Deal found 2/12$886

Sun 15/206:20SYD - STL

2 stops27h 45mMultiple Airlines

Deal found 2/12$935

Tue 17/211:45SYD - ORD

2 stops34h 27mAir New Zealand

Deal found 1/12$973

Wed 13/509:55SYD - ORD

2 stops28h 39mAir New Zealand

Deal found 2/12$976

Mon 23/220:40PER - ORD

3 stops48h 55mMultiple Airlines

Deal found 3/12$978

Mon 23/201:40PER - ORD

3 stops47h 50mMultiple Airlines

Deal found 3/12$981

Thu 7/511:55SYD - ORD

2 stops26h 55mAir New Zealand

Deal found 2/12$981

Wed 14/116:05MEL - STL

1 stop39h 42mQantas Airways

Deal found 3/12$1,026

Tue 17/206:00SYD - ORD

3 stops51h 33mMultiple Airlines

Deal found 1/12$1,050

Sat 2/508:35MEL - ORD

2 stops30h 15mAir New Zealand

Deal found 1/12$1,052

Wed 15/420:50SYD - ORD

3 stops53h 20mMultiple Airlines

Deal found 2/12$1,052

Find flight deals from Australia to Illinois

Round-trip from	$1,254
One-way from	$877
Popular in	December
Cheapest in	March
Average price	$2,257

Air Canada
3/3-17/3
4 total stops
56h 01m total
Australia to Illinois

Search Deals

Delta
14/1
2 total stops
30h 15m total
Australia to Illinois

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($687 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($102 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 1/2

10:10-20:37

2 stops27h 27m

Lambert-St Louis

Mon 9/2

06:00-08:00

2 stops33h 00m

$1,318

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 30/1

10:10-23:37

2 stops30h 27m

Lambert-St Louis

Wed 11/2

07:10-08:00

2 stops31h 50m

$1,318

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 4/2

10:10-20:37

2 stops27h 27m

Lambert-St Louis

Wed 11/2

13:00-08:00

2 stops26h 00m

$1,318

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 4/2

10:10-21:38

2 stops28h 28m

Lambert-St Louis

Tue 10/2

17:04-08:00

2 stops45h 56m

$1,318

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 30/1

10:10-20:37

2 stops27h 27m

Lambert-St Louis

Tue 10/2

17:04-08:00

2 stops45h 56m

$1,321

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 1/2

10:10-08:53

2 stops39h 43m

Lambert-St Louis

Wed 11/2

09:59-08:00

2 stops29h 01m

$1,321

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 30/1

10:10-20:43

2 stops27h 33m

Lambert-St Louis

Sat 7/2

17:56-08:00

2 stops69h 04m

$1,324

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 11/3

09:45-19:45

2 stops49h 00m

Chicago O'Hare Intl

Sat 28/3

15:35-07:05

1 stop24h 30m

$1,330

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 11/3

05:05-14:41

2 stops24h 36m

Chicago O'Hare Intl

Sat 28/3

14:00-07:05

2 stops26h 05m

$1,371

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mon 2/2

16:05-19:29

1 stop20h 24m

Lambert-St Louis

Mon 9/2

09:34-09:30

2 stops30h 56m

$1,389

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 60 results

...

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 $921). Flying from Australia to Illinois in December is currently the most expensive (average of $1,594). 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?

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 evening could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Australia to Illinois?

Travellers seeking maximum savings on their Australia to Illinois flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

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

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.

Air New Zealand

8.0

Very Good

542 reviews

Air New Zealand

8.0

Very Good

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

Qantas Airways

7.5

Good

947 reviews

Air New Zealand

8.0

Very Good

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

United Airlines

7.4

Good

9,063 reviews

Air New Zealand

8.0

Very Good

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

American Airlines

7.2

Good

11,045 reviews

Air New Zealand

8.0

Very Good

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

Air Canada

7.1

Good

10,500 reviews

Air New Zealand

8.0

Very Good

542 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Annabel,Nov 2025

AKL - WRE

Related info for your journey

How long is the flight from Australia to Illinois?
Airlines like Delta, Air Canada, and American Airlines fly from Australia to Illinois in about 27h 27m. The time it takes to get you to your destination can typically vary by up to 21h 33m. 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 $193. Qantas Airways flights start at $572 while deals on Cathay Pacific start at $1,000 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 $921). Flying from Australia to Illinois in December is currently the most expensive (average of $1,594). 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

Top 10 airlines flying from Australia to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$966	Average$1,577	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air New Zealand	Cheapest$1,166	Average$1,653	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
American Airlines	Cheapest$1,173	Average$1,696	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	Cheapest$1,186	Average$1,711	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,354	Average$2,139	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Cathay Pacific	Cheapest$1,476	Average$2,010	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
ANA	Cheapest$1,595	Average$1,725	FlexibilityNo cancel fee	On-time80%	Search ANA flights
Japan Airlines	Cheapest$1,963	Average$2,340	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
Virgin Australia	Cheapest$2,173	Average$3,049	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights
Qatar Airways	Cheapest$2,477	Average$3,162	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

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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Cheap flights from Australia to Illinois from $877

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.

Cheap flight deals from Australia to Illinois

Cheapest flights from Australia to IllinoisExplore 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 4 December 2025.

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 4 December 2025.

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 4 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Australia to Illinois that are best for you.

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.

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?

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 4 December 2025.

What is the cheapest day to fly from Australia to Illinois?

Use this chart to determine the cheapest time to fly return from Australia to Illinois. Price data was last updated on 16 December 2024.

Reviews of airlines servicing Illinois

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.

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?

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

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

How can I find direct flights from Australia to Illinois?

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

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

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.

Alternative routes for Australia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Australia to Illinois

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?

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

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

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

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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 4 December 2025.