How long is the flight from Australia to Illinois?

Airlines like Philippine Airlines, American Airlines, and Lufthansa fly from Australia to Illinois in about 24h 35m. The time it takes to get you to your destination can typically vary by up to 8h 14m. 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 Air New Zealand, which is currently one of the cheapest options available, starting at $647. United Airlines flights start at $1,048 while deals on Qantas Airways start at $1,066 one-way.

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).

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.

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.

$686+ Cheap Flights from Australia to Illinois

Cheap flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 20 October 2026.

Thu 22/1013:00 -

1 stop21h 36m

Sat 7/1121:04 -

1 stop42h 56m

Deal found 19/10$1,452

Tue 17/1114:05 -

1 stop21h 25m

Tue 24/1106:40 -

1 stop33h 20m

Deal found 18/10$1,453

Thu 19/1111:30 -

1 stop46h 25m

Wed 25/1122:45 -

1 stop42h 05m

Deal found 18/10$1,454

Thu 26/1111:10 -

1 stop30h 03m

Sat 5/1216:00 -

1 stop21h 55m

Deal found 19/10$1,480

Sun 8/1111:30 -

1 stop46h 25m

Mon 23/1122:45 -

1 stop42h 05m

Deal found 19/10$1,484

Mon 19/1010:10 -

1 stop35h 30m

Sun 1/1109:45 -

1 stop27h 40m

Deal found 16/10$1,487

Thu 22/1010:10 -

1 stop30h 20m

Wed 4/1115:10 -

1 stop22h 15m

Deal found 20/10$1,489

Fri 13/1109:20 -

1 stop24h 35m

Wed 18/1122:45 -

1 stop39h 45m

Deal found 15/10$1,510

Sun 15/1111:30 -

1 stop46h 25m

Wed 25/1122:45 -

1 stop42h 05m

Deal found 18/10$1,512

Thu 22/1010:10 -

1 stop34h 50m

Wed 4/1113:24 -

1 stop24h 01m

Deal found 20/10$1,516

Thu 19/1111:30 -

1 stop46h 25m

Mon 23/1122:45 -

1 stop42h 05m

Deal found 18/10$1,530

Fri 23/1009:45 -

1 stop30h 45m

Sun 8/1112:02 -

1 stop23h 58m

Deal found 19/10$1,545

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 20 October 2026.

Fri 13/1109:20 -

1 stop24h 35m

Wed 18/1122:45 -

1 stop39h 45m

Deal found 15/10$1,510

Thu 19/1113:10 -

1 stop32h 49m

Thu 3/1215:17 -

2 stops23h 13m

Deal found 19/10$1,616

Wed 2/1212:45 -

2 stops25h 18m

Wed 9/1210:30 -

2 stops31h 00m

Deal found 17/10$1,635

Wed 2/1210:40 -

1 stop22h 35m

Wed 9/1214:41 -

2 stops25h 49m

Deal found 18/10$1,701

Thu 5/1111:50 -

1 stop19h 59m

Mon 9/1121:57 -

1 stop42h 23m

Deal found 15/10$1,702

Wed 18/1108:15 -

2 stops29h 07m

Wed 6/114:36 -

2 stops27h 19m

Deal found 15/10$1,828

Thu 5/1112:15 -

1 stop40h 15m

Mon 9/1114:10 -

1 stop28h 35m

Deal found 18/10$1,834

Mon 30/1114:50 -

2 stops43h 21m

Mon 7/1221:06 -

2 stops43h 19m

Deal found 16/10$1,942

Tue 19/111:35 -

1 stop45h 20m

Tue 26/115:35 -

1 stop25h 10m

Deal found 15/10$2,112

Wed 2/1215:45 -

2 stops38h 50m

Wed 9/1215:00 -

2 stops31h 00m

Deal found 19/10$2,424

Wed 2/1222:55 -

2 stops49h 05m

Mon 7/1213:30 -

2 stops43h 25m

Deal found 15/10$2,897

Tue 1/1222:00 -

1 stop33h 00m

Tue 8/1216:57 -

2 stops55h 38m

Deal found 17/10$3,367

Mon 16/1110:10 -

2 stops28h 37m

Mon 7/1205:30 -

2 stops33h 30m

Deal found 19/10$1,708

Thu 5/1112:45 -

2 stops24h 49m

Mon 9/1121:57 -

1 stop43h 33m

Deal found 16/10$1,714

Thu 5/1106:25 -

2 stops39h 07m

Mon 9/1121:06 -

2 stops48h 44m

Deal found 17/10$1,797

Tue 19/111:15 -

2 stops25h 25m

Tue 26/114:33 -

2 stops34h 27m

Deal found 15/10$1,856

Thu 3/1210:40 -

2 stops26h 35m

Sun 13/1207:25 -

2 stops32h 05m

Deal found 19/10$1,708

Thu 5/1122:40 -

1 stop33h 00m

Mon 9/1119:45 -

1 stop32h 35m

Deal found 15/10$3,822

Sun 15/1111:20 -

1 stop22h 40m

Sun 22/1115:47 -

2 stops24h 33m

Deal found 16/10$1,772

Thu 5/1107:50 -

2 stops45h 10m

Mon 9/1114:10 -

2 stops52h 35m

Deal found 15/10$2,026

Tue 1/1206:00 -

2 stops32h 31m

Tue 8/1217:00 -

2 stops25h 30m

Deal found 16/10$2,060

Tue 17/1110:40 -

2 stops23h 01m

Tue 24/1118:23 -

1 stop21h 07m

Deal found 18/10$1,708

Thu 5/1111:50 -

1 stop23h 59m

Fri 20/1121:35 -

1 stop40h 25m

Deal found 16/10$1,772

Sun 7/210:10 -

2 stops28h 00m

Sun 28/214:55 -

1 stop24h 05m

Deal found 19/10$1,778

Sun 15/1112:45 -

2 stops26h 15m

Wed 25/1115:47 -

2 stops25h 43m

Deal found 16/10$1,778

Thu 5/1112:35 -

2 stops39h 55m

Mon 9/1114:10 -

2 stops58h 40m

Deal found 17/10$2,359

Sun 8/1111:50 -

2 stops22h 15m

Mon 23/1116:20 -

2 stops23h 45m

Deal found 19/10$1,778

Sat 21/1110:40 -

2 stops23h 01m

Wed 2/1208:04 -

2 stops31h 26m

Deal found 17/10$1,778

Mon 30/1107:20 -

2 stops44h 35m

Mon 7/1206:00 -

2 stops30h 40m

Deal found 15/10$2,671

Thu 3/1205:00 -

2 stops28h 59m

Thu 24/1213:44 -

2 stops37h 41m

Deal found 19/10$2,582

Find flight deals from Australia to Illinois

Round-trip from	$1,437
One-way from	$686
Popular in	May
Cheapest in	October
Average price	$1,553

Philippine Airlines
5/3-26/3
2 total stops
64h 20m total
Australia to Illinois

Search Deals

10/2-31/12
2 total stops
35h 40m total
Australia to Illinois

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($228 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($71 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 9/11

08:35-16:55

1 stop22h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$798

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Sun 8/11

13:55-00:21

3 stops51h 26m

Chicago O'Hare Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$825

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Wed 7/4

08:30-17:55

1 stop22h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$835

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 30/11

08:35-16:55

1 stop22h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$851

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Thu 1/4

13:50-07:05

2 stops33h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$867

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 5/4

08:30-17:55

1 stop22h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$875

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Wed 18/11

09:20-16:55

1 stop24h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$887

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Tue 19/1

11:35-16:55

1 stop45h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$947

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Tue 30/3

11:10-17:55

1 stop45h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$949

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Sun 8/11

04:40-07:35

3 stops40h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$956

Flights are sorted by cheapest return flights first.

Deals found on 19/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

SYD-ORD

MEL-ORD

BNE-ORD

PER-ORD

MEL-MLI

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

AU0-USIL

SYD-ORD

MEL-ORD

BNE-ORD

PER-ORD

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 $1,628). Flying from Australia to Illinois in September is currently the most expensive (average of $2,129). 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.

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

The price you pay for your flight from Australia to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Air New Zealand

8.0

Very Good

675 reviews

Air New Zealand

8.0

Very Good

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Qantas Airways

7.5

Good

1,114 reviews

Air New Zealand

8.0

Very Good

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

United Airlines

7.3

Good

10,388 reviews

Air New Zealand

8.0

Very Good

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Air Canada

7.1

Good

11,784 reviews

Air New Zealand

8.0

Very Good

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

American Airlines

7.0

Good

12,182 reviews

Air New Zealand

8.0

Very Good

675 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Related info for your journey

How long is the flight from Australia to Illinois?
Airlines like Philippine Airlines, American Airlines, and Lufthansa fly from Australia to Illinois in about 24h 35m. The time it takes to get you to your destination can typically vary by up to 8h 14m. 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 Air New Zealand, which is currently one of the cheapest options available, starting at $647. United Airlines flights start at $1,048 while deals on Qantas Airways start at $1,066 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 $1,628). Flying from Australia to Illinois in September is currently the most expensive (average of $2,129). 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

Airlines

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

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Popular flights

Return Flight Options

Top destinations

Airlines flying to Illinois

American Airlines flights to Illinois

Air Canada flights to Illinois

Qantas Airways flights to Illinois

Air New Zealand flights to Illinois

United Airlines flights to Illinois

Top 9 airlines flying from Australia to Illinois

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$551	Average$1,568	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	Cheapest$959	Average$1,690	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	Cheapest$1,060	Average$1,839	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air New Zealand	Cheapest$1,231	Average$1,764	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
United Airlines	Cheapest$1,303	Average$1,985	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Qantas Airways	Cheapest$1,343	Average$2,119	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Cathay Pacific	Cheapest$1,705	Average$1,996	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Japan Airlines	Cheapest$2,139	Average$2,854	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
Virgin Australia	Cheapest$2,176	Average$2,204	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights

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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 $686

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. 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 20 October 2026.

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 20 October 2026.

Best flights from Australia to IllinoisDiscover 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 20 October 2026.

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 20 October 2026.

Last-minute flights from Australia to IllinoisDiscover last-minute flight deals from Australia to Illinois. Data last updated 20 October 2026 and is based on user searches.

Discover last-minute flight deals from Australia to Illinois. Data last updated 20 October 2026 and is based on user searches.

One-way flights from Australia to IllinoisSearch for one-way flight options from Australia to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 October 2026.

Search for one-way flight options from Australia to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 October 2026.

Find flight deals from Australia to Illinois

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

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

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

The price you pay for your flight from Australia to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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.

Airlines flying to Illinois

Alternative routes for Australia to Illinois

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

Complete your trip

Complete your trip to Illinois by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Australia to Illinois by cabin class

Find flights from Australia to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Australia and Illinois flights

Browse other Australia and Illinois flight options. Last updated on 20 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Illinois

Find the right flight back to Australia after your stay in Illinois

Australia to Illinois flights

Consider these flights travelling from Australia to Illinois.

Top 9 airlines flying from Australia to Illinois

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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 20 October 2026.

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 20 October 2026.

Last-minute flights from Australia to Illinois
Discover last-minute flight deals from Australia to Illinois. Data last updated 20 October 2026 and is based on user searches.

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 20 October 2026.