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

To fly one-way, consider booking your trip with Etihad Airways, which is currently one of the cheapest options available, starting at $998. EVA Air flights start at $1,019 while deals on Cathay Pacific start at $1,024 one-way. Find deals

How far in advance should I book a flight from Australia to Illinois?

Users have found that booking a flight from Australia to Illinois at least 38 days early can save you up to 56% on average compared to booking a flight this week. If booking 38 days before your flight isn’t an option for you, users have found flights from Australia to Illinois for as little as $1,744 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $2,071 for flights departing within the next 3 days. Find deals

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

Flights from Australia to Illinois lean towards being more expensive in December. Prices are generally better when you fly from Australia to Illinois in March, with the cheapest ticket starting at $1,044.

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.

$1,897+ Flights from Australia to Illinois

Cheap flight deals from Australia to Illinois

Round-trip from	$1,251
One-way from	$692
Popular in	December
Cheapest in	March
Average price	$1,320

Qantas Airways
9/10-23/10
2 total stops
68h 55m total
Australia to Illinois

Search Deals

3/6
3 total stops
32h 47m total
Australia to Illinois

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($510 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($111 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 18 April 2025.

Thu 9/1020:05BNE - ORD

1 stop38h 35mQantas Airways

Thu 23/1008:05ORD - BNE

1 stop30h 20mQantas Airways

Deal found 18/4$1,251

Thu 8/513:15SYD - ORD

2 stops33h 30mMultiple Airlines

Thu 15/507:00ORD - SYD

2 stops38h 15mMultiple Airlines

Deal found 16/4$1,435

Fri 23/513:35MEL - ORD

2 stops24h 30mMultiple Airlines

Tue 27/506:10ORD - MEL

2 stops38h 20mMultiple Airlines

Deal found 17/4$1,448

Wed 14/511:35BNE - ORD

2 stops34h 07mMultiple Airlines

Wed 21/508:37ORD - BNE

2 stops34h 58mMultiple Airlines

Deal found 17/4$1,479

Thu 9/1022:15BNE - ORD

1 stop37h 30mEVA Air

Sat 18/1000:30ORD - BNE

1 stop28h 30mEVA Air

Deal found 16/4$1,608

Thu 12/623:55BNE - ORD

1 stop29h 30mCathay Pacific

Sun 22/616:00ORD - BNE

1 stop28h 05mCathay Pacific

Deal found 17/4$1,653

Wed 17/1206:00ADL - ORD

2 stops24h 45mQantas Airways

Sat 17/116:45ORD - ADL

2 stops26h 15mQantas Airways

Deal found 16/4$1,914

Tue 11/1111:15SYD - ORD

1 stop21h 37mQantas Airways

Wed 19/1115:24ORD - SYD

2 stops25h 26mQantas Airways

Deal found 17/4$1,915

Tue 11/1111:20SYD - ORD

2 stops22h 16mAir Canada

Wed 19/1109:50ORD - SYD

2 stops30h 45mAir Canada

Deal found 17/4$1,942

Mon 16/611:50SYD - ORD

2 stops47h 35mANA

Mon 14/717:45ORD - SYD

1 stop24h 40mANA

Deal found 17/4$1,953

Tue 14/1011:55MEL - ORD

1 stop21h 54mQantas Airways

Fri 24/1013:30ORD - MEL

2 stops28h 50mQantas Airways

Deal found 17/4$1,955

Wed 3/912:25PER - ORD

2 stops40h 20mJapan Airlines

Sun 7/901:05ORD - PER

2 stops34h 35mJapan Airlines

Deal found 17/4$1,988

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 18 April 2025.

Thu 9/1020:05BNE - ORD

1 stop38h 35mQantas Airways

Thu 23/1008:05ORD - BNE

1 stop30h 20mQantas Airways

Deal found 18/4$1,251

Thu 8/513:15SYD - ORD

2 stops33h 30mMultiple Airlines

Thu 15/507:00ORD - SYD

2 stops38h 15mMultiple Airlines

Deal found 16/4$1,435

Thu 9/1022:15BNE - ORD

1 stop37h 30mEVA Air

Sat 18/1000:30ORD - BNE

1 stop28h 30mEVA Air

Deal found 16/4$1,608

Thu 12/623:55BNE - ORD

1 stop29h 30mCathay Pacific

Sun 22/616:00ORD - BNE

1 stop28h 05mCathay Pacific

Deal found 17/4$1,653

Thu 4/911:50SYD - ORD

2 stops32h 11mANA

Thu 11/917:45ORD - SYD

1 stop34h 30mANA

Deal found 18/4$1,780

Wed 3/912:25PER - ORD

2 stops40h 20mJapan Airlines

Sun 7/901:05ORD - PER

2 stops34h 35mJapan Airlines

Deal found 17/4$1,988

Thu 4/918:05SYD - ORD

2 stops40h 58mSingapore Airlines

Thu 11/920:42ORD - SYD

2 stops46h 43mSingapore Airlines

Deal found 18/4$2,002

Sat 11/1010:20SYD - ORD

1 stop25h 44mAir Canada

Tue 21/1015:35ORD - SYD

1 stop24h 45mAir Canada

Deal found 17/4$2,032

Thu 9/1011:55MEL - ORD

1 stop21h 13mUnited Airlines

Sun 19/1016:25ORD - MEL

1 stop24h 50mUnited Airlines

Deal found 16/4$2,079

Thu 9/1010:25SYD - MDW

2 stops23h 42mDelta

Tue 21/1014:00MDW - SYD

2 stops25h 35mDelta

Deal found 16/4$2,102

Tue 24/609:10SYD - ORD

2 stops23h 01mAmerican Airlines

Tue 29/717:06ORD - SYD

2 stops22h 59mAmerican Airlines

Deal found 17/4$2,217

Mon 2/621:20MEL - ORD

2 stops35h 35mTurkish Airlines

Mon 9/611:25ORD - MEL

2 stops41h 00mTurkish Airlines

Deal found 18/4$2,335

Last-minute flights from Australia to Illinois
Discover last-minute flight deals from Australia to Illinois. Data last updated 18 April 2025 and is based on user searches.

Tue 22/409:10SYD - ORD

1 stop25h 15mQantas Airways

Thu 8/513:33ORD - SYD

2 stops28h 07mQantas Airways

Deal found 17/4$2,418

Tue 22/410:20SYD - ORD

2 stops23h 35mUnited Airlines

Tue 29/415:35ORD - SYD

2 stops24h 25mUnited Airlines

Deal found 17/4$2,535

Tue 22/409:25SYD - MDW

2 stops27h 57mDelta

Tue 29/415:02MDW - SYD

2 stops24h 33mDelta

Deal found 17/4$2,556

Tue 22/409:20SYD - ORD

3 stops37h 42mAir Canada

Thu 8/508:45ORD - SYD

2 stops31h 35mAir Canada

Deal found 17/4$3,190

Tue 22/423:55BNE - ORD

1 stop29h 30mCathay Pacific

Mon 5/516:00ORD - BNE

1 stop28h 05mCathay Pacific

Deal found 17/4$1,920

Wed 23/410:25BNE - ORD

2 stops45h 59mQantas Airways

Tue 6/515:15ORD - BNE

1 stop23h 10mQantas Airways

Deal found 17/4$2,196

Wed 23/410:30BNE - ORD

1 stop29h 46mUnited Airlines

Sat 3/520:30ORD - BNE

1 stop43h 00mUnited Airlines

Deal found 17/4$2,762

Wed 23/417:10BNE - ORD

2 stops35h 45mAmerican Airlines

Tue 6/507:06ORD - BNE

2 stops31h 19mAmerican Airlines

Deal found 17/4$2,931

Wed 23/410:25BNE - ORD

2 stops45h 59mQantas Airways

Thu 8/509:55ORD - BNE

1 stop28h 30mQantas Airways

Deal found 17/4$2,196

Thu 24/407:40SYD - ORD

1 stop45h 45mCathay Pacific

Sun 27/416:00ORD - SYD

1 stop47h 10mCathay Pacific

Deal found 17/4$2,309

Thu 24/407:40SYD - ORD

1 stop45h 45mMultiple Airlines

Sun 27/416:00ORD - SYD

2 stops39h 20mMultiple Airlines

Deal found 17/4$2,416

Thu 24/409:25SYD - ORD

2 stops24h 24mDelta

Sun 27/412:15ORD - SYD

2 stops27h 20mDelta

Deal found 17/4$2,556

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 18 April 2025.

Tue 3/612:55MEL - ORD

3 stops32h 47mMultiple Airlines

Deal found 17/4$692

Thu 8/516:20SYD - ORD

2 stops39h 40mMultiple Airlines

Deal found 17/4$706

Sat 11/1012:40CNS - ORD

2 stops25h 51mMultiple Airlines

Deal found 17/4$805

Thu 15/521:55PER - ORD

2 stops45h 47mMultiple Airlines

Deal found 17/4$903

Sat 5/706:00BNE - ORD

3 stops39h 51mMultiple Airlines

Deal found 17/4$948

Mon 26/516:20SYD - STL

2 stops46h 44mMultiple Airlines

Deal found 17/4$964

Sat 11/1021:30SYD - ORD

1 stop51h 15mEtihad Airways

Deal found 17/4$998

Mon 26/522:15BNE - ORD

1 stop37h 45mEVA Air

Deal found 17/4$1,019

Mon 26/523:55BNE - ORD

1 stop29h 30mCathay Pacific

Deal found 18/4$1,024

Sun 12/1006:00MEL - ORD

1 stop42h 45mEtihad Airways

Deal found 17/4$1,038

Thu 8/514:25MEL - ORD

1 stop39h 00mCathay Pacific

Deal found 17/4$1,254

Thu 8/507:40SYD - ORD

1 stop45h 45mCathay Pacific

Deal found 17/4$1,262

Cheapflights Fare Finder

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

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 9/10

20:05-19:40

1 stop38h 35m

Chicago O'Hare Intl

Thu 23/10

08:05-05:25

1 stop30h 20m

$1,251

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 8/5

13:15-07:45

2 stops33h 30m

Chicago O'Hare Intl

Thu 15/5

07:00-12:15

2 stops38h 15m

$1,435

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 14/5

11:35-06:42

2 stops34h 07m

Chicago O'Hare Intl

Wed 21/5

08:37-10:35

2 stops34h 58m

$1,479

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 9/10

22:15-20:45

1 stop37h 30m

Chicago O'Hare Intl

Sat 18/10

00:30-20:00

1 stop28h 30m

$1,608

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 12/6

23:55-14:25

1 stop29h 30m

Chicago O'Hare Intl

Sun 22/6

16:00-11:05

1 stop28h 05m

$1,653

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 8/5

12:55-08:50

3 stops34h 55m

Chicago O'Hare Intl

Fri 9/5

18:59-11:30

2 stops25h 31m

$1,741

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 14/10

10:10-19:40

1 stop25h 30m

Chicago O'Hare Intl

Fri 24/10

14:45-09:50

2 stops27h 05m

$1,923

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 16/6

11:50-20:25

2 stops47h 35m

Chicago O'Hare Intl

Mon 14/7

17:45-09:25

1 stop24h 40m

$1,953

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 14/10

11:55-17:49

1 stop21h 54m

Chicago O'Hare Intl

Fri 24/10

13:30-10:20

2 stops28h 50m

$1,955

PerthChicago

PER - ORD

PERORD

Perth

Wed 3/9

12:25-15:45

2 stops40h 20m

Chicago O'Hare Intl

Sun 7/9

01:05-00:40

2 stops34h 35m

$1,988

Flights are sorted by cheapest return flights first.

Deals found on 17/4

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 time of day to fly from AU to IL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Australia to Illinois as you normally would.

Rainfall in Illinois by month

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.

Temperature in Illinois by month

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).

Reviews of airlines servicing Illinois

Get a feel of what it's like to fly with Air Tahiti Nui, EVA Air and Korean Air from Australia to Illinois by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

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

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

EVA Air

8.4

Very Good

1,179 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Korean Air

8.4

Very Good

1,063 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Japan Airlines

8.3

Very Good

1,447 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very Good

845 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What are the cheapest airlines to fly from Australia to Illinois one-way?
To fly one-way, consider booking your trip with Etihad Airways, which is currently one of the cheapest options available, starting at $998. EVA Air flights start at $1,019 while deals on Cathay Pacific start at $1,024 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.

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
American Airlines	Cheapest$719	Average$1,869	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$999	Average$1,779	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air New Zealand	Cheapest$1,213	Average$1,714	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Air Canada	Cheapest$1,306	Average$1,901	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,594	Average$2,256	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
ANA	Cheapest$1,724	Average$2,217	FlexibilityNo cancel fee	On-time80%	Search ANA flights
Virgin Australia	Cheapest$1,742	Average$2,804	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights
Delta	Cheapest$1,836	Average$1,968	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Cathay Pacific	Cheapest$2,055	Average$2,554	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Japan Airlines	Cheapest$2,081	Average$2,615	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines 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 $692

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.

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 18 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 18 April 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 18 April 2025.

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 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 18 April 2025.

Rainfall in Illinois by month

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

Temperature in Illinois by month

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

Reviews of airlines servicing Illinois

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.

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?

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?

100% Free

Book with Flexibility

Travel Smart

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 18 April 2025.