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

To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $695. American Airlines flights start at $721 while deals on Cathay Pacific start at $1,253 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 $1,742 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 $1,988 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 February, with the cheapest ticket starting at $1,011.

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.

$1,681+ Flights from Australia to Illinois

Cheap flight deals from Australia to Illinois

Round-trip from	$1,115
One-way from	$695
Popular in	December
Cheapest in	February
Average price	$1,344

Qantas Airways
3/3-16/8
2 total stops
49h 50m total
Australia to Illinois

Search Deals

Qantas Airways
15/3
1 total stop
20h 40m total
Australia to Illinois

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($347 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 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 21 February 2025.

Mon 3/311:15SYD - ORD

1 stop21h 35mQantas Airways

Sat 16/811:50ORD - SYD

1 stop28h 15mQantas Airways

Deal found 19/2$1,115

Fri 28/211:15SYD - ORD

2 stops26h 27mAmerican Airlines

Thu 13/320:20ORD - SYD

1 stop20h 40mAmerican Airlines

Deal found 19/2$1,192

Thu 6/306:20SYD - ORD

2 stops24h 41mMultiple Airlines

Fri 14/320:20ORD - SYD

1 stop20h 40mMultiple Airlines

Deal found 20/2$1,298

Wed 9/417:10BNE - ORD

2 stops37h 46mMultiple Airlines

Thu 24/419:20ORD - BNE

2 stops24h 30mMultiple Airlines

Deal found 20/2$1,438

Thu 7/812:00ADL - ORD

2 stops42h 06mMultiple Airlines

Thu 28/814:23ORD - ADL

2 stops30h 17mMultiple Airlines

Deal found 20/2$1,511

Thu 28/809:20SYD - ORD

1 stop20h 29mAir Canada

Sun 21/920:25ORD - SYD

2 stops43h 55mAir Canada

Deal found 20/2$1,562

Mon 5/513:45MEL - ORD

3 stops31h 48mMultiple Airlines

Wed 30/717:45ORD - MEL

2 stops38h 50mMultiple Airlines

Deal found 19/2$1,573

Sat 5/421:00MEL - ORD

2 stops34h 56mQantas Airways

Sat 12/415:17ORD - MEL

1 stop24h 28mQantas Airways

Deal found 20/2$1,591

Fri 18/720:45BNE - ORD

2 stops34h 10mQantas Airways

Mon 4/817:03ORD - BNE

2 stops26h 37mQantas Airways

Deal found 20/2$1,613

Thu 6/313:00MEL - ORD

1 stop21h 00mUnited Airlines

Thu 13/315:55ORD - MEL

1 stop24h 35mUnited Airlines

Deal found 20/2$1,665

Wed 7/509:30SYD - ORD

1 stop25h 55mUnited Airlines

Tue 20/514:35ORD - SYD

2 stops25h 20mUnited Airlines

Deal found 20/2$1,717

Mon 12/509:30SYD - STL

2 stops42h 15mUnited Airlines

Sat 31/508:25STL - SYD

2 stops55h 35mUnited Airlines

Deal found 20/2$1,720

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 21 February 2025.

Mon 3/311:15SYD - ORD

1 stop21h 35mQantas Airways

Sat 16/811:50ORD - SYD

1 stop28h 15mQantas Airways

Deal found 19/2$1,115

Thu 6/306:20SYD - ORD

2 stops24h 41mMultiple Airlines

Fri 14/320:20ORD - SYD

1 stop20h 40mMultiple Airlines

Deal found 20/2$1,298

Thu 6/311:50SYD - ORD

2 stops21h 29mAmerican Airlines

Thu 13/320:20ORD - SYD

1 stop20h 40mAmerican Airlines

Deal found 20/2$1,525

Tue 6/509:20SYD - ORD

2 stops46h 28mAir Canada

Tue 20/510:00ORD - SYD

2 stops30h 20mAir Canada

Deal found 20/2$1,576

Thu 6/313:00MEL - ORD

1 stop21h 00mUnited Airlines

Thu 13/315:55ORD - MEL

1 stop24h 35mUnited Airlines

Deal found 20/2$1,665

Wed 7/509:25SYD - ORD

2 stops24h 35mDelta

Tue 20/513:35ORD - SYD

2 stops26h 00mDelta

Deal found 20/2$2,099

Thu 3/400:45MEL - ORD

1 stop29h 40mCathay Pacific

Mon 21/416:00ORD - MEL

1 stop28h 15mCathay Pacific

Deal found 20/2$2,154

Tue 1/411:15SYD - ORD

2 stops46h 35mFinnair

Thu 8/521:30ORD - SYD

2 stops40h 40mFinnair

Deal found 20/2$2,159

Thu 3/421:55SYD - ORD

2 stops36h 00mTurkish Airlines

Sun 20/411:25ORD - SYD

2 stops40h 35mTurkish Airlines

Deal found 20/2$2,369

Thu 20/321:55PER - ORD

2 stops35h 12mANA

Thu 3/411:50ORD - PER

1 stop43h 25mANA

Deal found 20/2$2,425

Wed 19/300:15PER - ORD

2 stops45h 20mJapan Airlines

Thu 3/412:05ORD - PER

2 stops45h 35mJapan Airlines

Deal found 20/2$2,606

Thu 6/322:00ADL - ORD

1 stop33h 00mQatar Airways

Mon 10/316:27ORD - ADL

2 stops33h 08mQatar Airways

Deal found 19/2$2,664

Last-minute flights from Australia to Illinois
Discover last-minute flight deals from Australia to Illinois. Data last updated 21 February 2025 and is based on user searches.

Fri 21/211:20SYD - ORD

2 stops22h 46mUnited Airlines

Mon 10/318:03ORD - SYD

2 stops23h 12mUnited Airlines

Deal found 19/2$1,894

Fri 28/211:15SYD - ORD

1 stop21h 35mQantas Airways

Thu 13/320:20ORD - SYD

1 stop20h 40mQantas Airways

Deal found 19/2$1,154

Fri 28/211:15SYD - ORD

2 stops26h 27mAmerican Airlines

Thu 13/320:20ORD - SYD

1 stop20h 40mAmerican Airlines

Deal found 19/2$1,192

Fri 28/217:25SYD - ORD

3 stops29h 28mMultiple Airlines

Thu 13/305:55ORD - SYD

2 stops34h 40mMultiple Airlines

Deal found 19/2$2,338

Fri 28/211:05SYD - MDW

2 stops24h 06mDelta

Thu 13/312:51MDW - SYD

2 stops25h 14mDelta

Deal found 19/2$2,697

Wed 5/300:45MEL - ORD

1 stop29h 15mMultiple Airlines

Thu 13/309:45ORD - MEL

1 stop31h 45mMultiple Airlines

Deal found 20/2$2,032

Thu 6/306:20SYD - ORD

2 stops24h 41mMultiple Airlines

Fri 14/320:20ORD - SYD

1 stop20h 40mMultiple Airlines

Deal found 20/2$1,298

Thu 6/311:20SYD - ORD

2 stops37h 37mAir Canada

Thu 13/307:20ORD - SYD

2 stops33h 15mAir Canada

Deal found 20/2$1,651

Thu 6/312:00MEL - ORD

1 stop28h 57mQantas Airways

Thu 13/314:13ORD - MEL

2 stops29h 27mQantas Airways

Deal found 20/2$1,660

Thu 6/313:00MEL - ORD

1 stop21h 00mUnited Airlines

Thu 13/315:55ORD - MEL

1 stop24h 35mUnited Airlines

Deal found 20/2$1,665

Thu 6/306:00ADL - ORD

2 stops25h 09mAir Canada

Mon 10/311:04ORD - ADL

3 stops35h 21mAir Canada

Deal found 19/2$1,891

Thu 20/308:00PER - ORD

2 stops46h 23mMultiple Airlines

Thu 3/417:10ORD - PER

2 stops31h 45mMultiple Airlines

Deal found 20/2$2,046

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 21 February 2025.

Sat 15/311:15SYD - ORD

1 stop20h 40mQantas Airways

Deal found 21/2$695

Thu 20/322:00BNE - ORD

1 stop23h 25mMultiple Airlines

Deal found 20/2$699

Mon 17/308:05BNE - ORD

1 stop20h 01mQantas Airways

Deal found 20/2$715

Thu 20/322:00BNE - ORD

2 stops22h 20mAmerican Airlines

Deal found 20/2$721

Sun 9/311:15SYD - ORD

2 stops24h 06mAmerican Airlines

Deal found 20/2$751

Thu 6/314:00SYD - ORD

2 stops35h 21mMultiple Airlines

Deal found 20/2$790

Wed 12/307:00MEL - ORD

2 stops24h 55mMultiple Airlines

Deal found 20/2$867

Mon 31/322:55BNE - MDW

3 stops53h 53mMultiple Airlines

Deal found 19/2$883

Sun 9/317:25SYD - MDW

2 stops46h 52mMultiple Airlines

Deal found 21/2$883

Wed 21/506:15MEL - ORD

2 stops24h 40mQantas Airways

Deal found 20/2$912

Mon 10/308:15MEL - MDW

3 stops37h 16mMultiple Airlines

Deal found 20/2$1,052

Fri 13/610:25PER - ORD

2 stops26h 51mMultiple Airlines

Deal found 20/2$1,080

Find flights from Australia to Illinois within your budget

Fly from

Fly to

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 3/3

11:15-15:50

1 stop21h 35m

Chicago O'Hare Intl

Sat 16/8

11:50-07:05

1 stop28h 15m

$1,115

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 6/3

06:20-14:01

2 stops24h 41m

Chicago O'Hare Intl

Fri 14/3

20:20-09:00

1 stop20h 40m

$1,298

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 9/4

17:10-15:56

2 stops37h 46m

Chicago O'Hare Intl

Thu 24/4

19:20-10:50

2 stops24h 30m

$1,438

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 1/5

06:00-23:59

2 stops32h 59m

Chicago O'Hare Intl

Sun 8/6

11:55-19:20

2 stops40h 25m

$1,461

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 7/8

12:00-15:36

2 stops42h 06m

Chicago O'Hare Intl

Thu 28/8

14:23-11:10

2 stops30h 17m

$1,511

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 6/3

11:50-16:19

2 stops21h 29m

Chicago O'Hare Intl

Thu 13/3

20:20-09:00

1 stop20h 40m

$1,525

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 6/5

09:20-16:48

2 stops46h 28m

Chicago O'Hare Intl

Tue 20/5

10:00-07:20

2 stops30h 20m

$1,576

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 5/4

21:00-15:56

2 stops34h 56m

Chicago O'Hare Intl

Sat 12/4

15:17-06:45

1 stop24h 28m

$1,591

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Fri 18/7

20:45-15:55

2 stops34h 10m

Chicago O'Hare Intl

Mon 4/8

17:03-10:40

2 stops26h 37m

$1,613

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 6/3

13:00-17:00

1 stop21h 00m

Chicago O'Hare Intl

Thu 13/3

15:55-08:30

1 stop24h 35m

$1,665

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from Australia to Illinois

Get recent, data-driven insights about flights from Australia to Illinois including ideal travel times, pricing trends, and more.

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 ANA 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

8.7

Very Good

61 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

8.7

Very Good

61 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

EVA Air

8.4

Very Good

1,200 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.4

Very Good

836 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Korean Air

8.4

Very Good

1,037 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Japan Airlines

8.3

Very Good

1,440 reviews

Air Tahiti Nui

8.7

Very Good

61 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 Qantas Airways, which is currently one of the cheapest options available, starting at $695. American Airlines flights start at $721 while deals on Cathay Pacific start at $1,253 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$718	Average$1,869	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Qantas Airways	Cheapest$994	Average$1,998	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air New Zealand	Cheapest$1,501	Average$1,884	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
ANA	Cheapest$1,536	Average$2,105	FlexibilityNo cancel fee	On-time80%	Search ANA flights
Air Canada	Cheapest$1,551	Average$2,054	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,591	Average$2,390	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Australia	Cheapest$1,740	Average$2,800	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights
Delta	Cheapest$1,833	Average$1,965	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Cathay Pacific	Cheapest$1,881	Average$2,345	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Japan Airlines	Cheapest$2,079	Average$2,785	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 $695

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 15/3. 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 21 February 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 21 February 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 21 February 2025.

Find flights from Australia to Illinois within your budget

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.

Travel insights for flights from Australia to Illinois

Get recent, data-driven insights about flights from Australia to Illinois including ideal travel times, pricing trends, and more.

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 21 February 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

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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 21 February 2025.