What is the cheapest airline that flies from Australia to Illinois?

Air New Zealand, Cathay Pacific, and EVA Air are the most popular carriers operating from Australia to Illinois

Which airlines fly to Illinois?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Illinois from Australia according to our data. Qantas Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 9 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from Australia to Illinois?

If you’re flying from a popular airport in Australia, such as Brisbane or Sydney, and flying into Illinois, then you can expect flight times to average 19h 12m and 21h 42m, respectively.

When did momondo last update prices for flights from Australia to Illinois?

Prices for flights from Australia to Illinois are updated daily.

How many operators does momondo search for flights from Australia to Illinois?

As of March 2026, there are 7 operators available to choose from for flights from Australia to Illinois.

How old do you have to be to fly from Australia to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$721 Cheap Flights from Australia to Illinois in 2026

1 adult

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Find the cheapest flights from Australia to Illinois

Round-trip

One-way

Last minute

Recent return flight deals from Australia to Illinois

Enter your travel dates to find the best prices.

13:30 - 23:27

MEL

ORD

24h 57m

2 stops

15:00 - 12:00

ORD

MEL

30h 00m

2 stops

$1,149Multiple Airlines

Sat, 25 Apr - Sat, 2 May

13:30 - 23:27

MEL

ORD

24h 57m

2 stops

07:30 - 12:05

ORD

MEL

37h 35m

2 stops

$1,199Multiple Airlines

Thu, 30 Apr - Wed, 13 May

13:15 - 05:35

SYD

ORD

31h 20m

2 stops

15:00 - 11:50

ORD

SYD

29h 50m

2 stops

$1,272Multiple Airlines

Sat, 25 Apr - Sat, 2 May

10:00 - 05:40

BNE

ORD

34h 40m

1 stop

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

$1,364Air Canada

Mon, 25 May - Mon, 8 Jun

10:00 - 09:05

BNE

ORD

38h 05m

2 stops

15:40 - 07:05

ORD

BNE

24h 25m

1 stop

$1,385Air Canada

Mon, 25 May - Mon, 8 Jun

10:00 - 20:15

BNE

ORD

25h 15m

1 stop

08:40 - 07:05

ORD

BNE

31h 25m

2 stops

$1,390Air Canada

Tue, 21 Apr - Tue, 28 Apr

11:55 - 23:15

SYD

ORD

26h 20m

2 stops

16:30 - 08:45

ORD

SYD

25h 15m

2 stops

$1,422Air New Zealand

Fri, 5 Jun - Fri, 19 Jun

11:55 - 23:15

SYD

ORD

26h 20m

2 stops

15:47 - 17:50

ORD

SYD

35h 03m

2 stops

$1,435Air New Zealand

Fri, 5 Jun - Fri, 19 Jun

09:45 - 23:57

MEL

STL

29h 12m

1 stop

06:21 - 06:45

STL

MEL

33h 24m

1 stop

$1,564Qantas Airways

Thu, 23 Apr - Thu, 30 Apr

09:45 - 23:08

MEL

STL

28h 23m

1 stop

16:14 - 13:20

STL

MEL

30h 06m

2 stops

$1,680American Airlines

Mon, 7 Sep - Sun, 27 Sep

Air New Zealand flights from Australia to Illinois

Our best Air New Zealand deals on Australia to Illinois flight tickets

Air New Zealand

5 June

SYD11:55Sydney Kingsford Smith

26h 20m

2 stops

ORD23:15Chicago O'Hare Intl

19 June

ORD16:30Chicago O'Hare Intl

25h 15m

2 stops

SYD08:45Sydney Kingsford Smith

$1,422

Air New Zealand

5 June

SYD11:55Sydney Kingsford Smith

26h 20m

2 stops

ORD23:15Chicago O'Hare Intl

19 June

ORD15:47Chicago O'Hare Intl

35h 03m

2 stops

SYD17:50Sydney Kingsford Smith

$1,435

Air New Zealand

5 June

SYD11:55Sydney Kingsford Smith

26h 20m

2 stops

ORD23:15Chicago O'Hare Intl

19 June

ORD15:47Chicago O'Hare Intl

35h 03m

2 stops

SYD17:50Sydney Kingsford Smith

$1,436

EVA Air flights from Australia to Illinois

Our best EVA Air deals on Australia to Illinois flight tickets

EVA Air

13 June

BNE22:15Brisbane

37h 45m

1 stop

ORD21:00Chicago O'Hare Intl

28 June

ORD00:30Chicago O'Hare Intl

28h 30m

1 stop

BNE20:00Brisbane

$1,569

EVA Air

13 June

BNE22:15Brisbane

46h 31m

2 stops

ORD05:46Chicago O'Hare Intl

28 June

ORD00:30Chicago O'Hare Intl

28h 30m

1 stop

BNE20:00Brisbane

$1,898

EVA Air

3 Aug

BNE22:15Brisbane

46h 31m

2 stops

ORD05:46Chicago O'Hare Intl

18 Aug

ORD00:30Chicago O'Hare Intl

28h 30m

1 stop

BNE20:00Brisbane

$1,913

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Sat 25/4

13:30-23:27

2 stops24h 57m

Chicago O'Hare Intl

Sat 2/5

15:00-12:00

2 stops30h 00m

$1,149

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 30/4

13:30-23:27

2 stops24h 57m

Chicago O'Hare Intl

Wed 13/5

07:30-12:05

2 stops37h 35m

$1,199

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 25/4

13:15-05:35

2 stops31h 20m

Chicago O'Hare Intl

Sat 2/5

15:00-11:50

2 stops29h 50m

$1,272

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 25/5

10:00-05:40

1 stop34h 40m

Chicago O'Hare Intl

Mon 8/6

15:40-07:05

1 stop24h 25m

$1,364

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 25/5

10:00-09:05

2 stops38h 05m

Chicago O'Hare Intl

Mon 8/6

15:40-07:05

1 stop24h 25m

$1,385

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 21/4

10:00-20:15

1 stop25h 15m

Chicago O'Hare Intl

Tue 28/4

08:40-07:05

2 stops31h 25m

$1,390

Fastest return journey

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/6

11:55-23:15

2 stops26h 20m

Chicago O'Hare Intl

Fri 19/6

16:30-08:45

2 stops25h 15m

$1,422

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/6

11:55-23:15

2 stops26h 20m

Chicago O'Hare Intl

Fri 19/6

15:47-17:50

2 stops35h 03m

$1,435

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 23/4

09:45-23:57

1 stop29h 12m

Lambert-St Louis

Thu 30/4

06:21-06:45

1 stop33h 24m

$1,564

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mon 7/9

09:45-23:08

1 stop28h 23m

Lambert-St Louis

Sun 27/9

16:14-13:20

2 stops30h 06m

$1,680

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Australia to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

In general, August is the cheapest month to fly from Australia to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,462. If you’re not able to fly to Illinois in August, then July is your next best option. Flight prices from Australia to Illinois during July average around $1,534.

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

You are more likely to see cheaper flights to Illinois from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,787 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Australia for as low as $1,171 on momondo.

Can stopping save me money on Australia to Illinois flights?

You could potentially save up to 15% on your flight if you consider stops on a Australia to Illinois flight.

Cheap Australia to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to Illinois

Fastest flight time	20h 21m
Direct flights	None

The fastest flight from Australia to Illinois takes 20h 21m

There are no direct flights from Australia to Illinois. There are no popular flight routes from Australia to Illinois.

Search flight deals

When did momondo last update prices for flights from Australia to Illinois?
Prices for flights from Australia to Illinois are updated daily.
How many operators does momondo search for flights from Australia to Illinois?
As of March 2026, there are 7 operators available to choose from for flights from Australia to Illinois.
How old do you have to be to fly from Australia to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Australia to Illinois

Compare and see reviews for airlines that fly from Australia to Illinois with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $950	Free cancellation	Rating 7.5 1,004 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,059	Free cancellation	Rating 7.1 10,800 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,073	Free cancellation	Rating 8.0 610 reviews	Search Air New Zealand flights
American Airlines	PriceFrom $1,090	Free cancellation	Rating 7.1 11,427 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,234	Free cancellation	Rating 7.4 9,417 reviews	Search United Airlines flights
Cathay Pacific	PriceFrom $1,359	Free cancellation	Rating 7.6 1,203 reviews	Search Cathay Pacific flights
ANA	PriceFrom $1,468	Free cancellation	Rating 8.4 1,124 reviews	Search ANA flights
Japan Airlines	PriceFrom $1,807	Free cancellation	Rating 8.3 1,730 reviews	Search Japan Airlines flights
Virgin Australia	PriceFrom $2,122	Free cancellation	Rating 7.6 446 reviews	Search Virgin Australia flights

Why use momondo?

Why should I use momondo to find a flight deal from Australia to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Australia to Illinois . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Australia to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Australia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Australia to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Australia.

I’m not ready to book a flight from Australia to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Australia to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.