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

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

How long is the flight from Australia to Illinois?

If you’re flying from a popular airport in Australia, such as Melbourne or Sydney, and flying into Illinois, then you can expect flight times to average 20h 09m and 20h 19m, respectively.

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 60% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 11 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 April 2025, there are 11 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.

$753 Cheap Flights from Australia to Illinois in 2025

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Find the cheapest flights from Australia to Illinois

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Recent return flight deals from Australia to Illinois

These are some of the best return flight deals from Australia to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

22:15 - 20:45BNE-ORD

37h 30m1 stop

00:30 - 20:00ORD-BNE

28h 30m1 stop

$1,610EVA Air

Find Deal

Thu, 9 Oct - Thu, 23 Oct

06:15 - 23:05SYD-ORD

31h 50m2 stops

06:10 - 11:45ORD-SYD

38h 35m2 stops

$1,611

Find Deal

Fri, 13 Jun - Fri, 20 Jun

09:10 - 18:35SYD-ORD

24h 25m2 stops

16:39 - 07:05ORD-SYD

23h 26m2 stops

$1,866American Airlines

Find Deal

Tue, 24 Jun - Tue, 29 Jul

09:45 - 23:35MEL-ORD

28h 50m1 stop

08:05 - 05:00ORD-MEL

29h 55m1 stop

$1,883American Airlines

Find Deal

Mon, 9 Jun - Fri, 20 Jun

10:20 - 20:11SYD-ORD

25h 51m2 stops

10:40 - 08:20ORD-SYD

29h 40m2 stops

$1,933Air Canada

Find Deal

Sat, 11 Oct - Tue, 21 Oct

10:20 - 20:11SYD-ORD

25h 51m2 stops

08:40 - 08:20ORD-SYD

31h 40m3 stops

$1,944Air Canada

Find Deal

Sat, 11 Oct - Tue, 21 Oct

10:20 - 16:45SYD-STL

21h 25m1 stop

19:00 - 09:15STL-SYD

21h 15m1 stop

$2,020United Airlines

Find Deal

Mon, 18 Aug - Sat, 8 Nov

09:30 - 18:53SYD-STL

24h 23m2 stops

19:00 - 09:15STL-SYD

21h 15m1 stop

$2,022United Airlines

Find Deal

Mon, 18 Aug - Sat, 8 Nov

15:05 - 17:18MEL-ORD

41h 13m1 stop

19:03 - 05:00ORD-MEL

42h 57m1 stop

$2,166Qantas Airways

Find Deal

Wed, 20 Aug - Sat, 20 Sep

11:55 - 21:24MEL-ORD

24h 29m1 stop

17:06 - 05:00ORD-MEL

43h 54m1 stop

$2,197Qantas Airways

Find Deal

Tue, 16 Sep - Tue, 7 Oct

Cathay Pacific flights from Australia to Illinois

Our best Cathay Pacific deals on Australia to Illinois flight tickets

Cathay Pacific

20 May

BNE23:55Brisbane

29h 30m

1 stop

ORD14:25Chicago O'Hare Intl

22 July

ORD16:00Chicago O'Hare Intl

28h 05m

1 stop

BNE11:05Brisbane

$1,647

Find similar

Cathay Pacific

10 June

BNE23:55Brisbane

29h 30m

1 stop

ORD14:25Chicago O'Hare Intl

24 June

ORD16:00Chicago O'Hare Intl

28h 05m

1 stop

BNE11:05Brisbane

$1,691

Find similar

Cathay Pacific

24 July

BNE23:55Brisbane

29h 30m

1 stop

ORD14:25Chicago O'Hare Intl

31 July

ORD16:00Chicago O'Hare Intl

33h 40m

2 stops

BNE16:40Brisbane

$1,697

Find similar

Air Canada flights from Australia to Illinois

Our best Air Canada deals on Australia to Illinois flight tickets

Air Canada

11 Oct

SYD10:20Sydney Kingsford Smith

25h 51m

2 stops

ORD20:11Chicago O'Hare Intl

21 Oct

ORD10:40Chicago O'Hare Intl

29h 40m

2 stops

SYD08:20Sydney Kingsford Smith

$1,933

Find similar

Air Canada

11 Oct

SYD10:20Sydney Kingsford Smith

25h 51m

2 stops

ORD20:11Chicago O'Hare Intl

21 Oct

ORD08:40Chicago O'Hare Intl

31h 40m

3 stops

SYD08:20Sydney Kingsford Smith

$1,944

Find similar

Air Canada

9 Oct

MEL07:10Melbourne

25h 32m

2 stops

ORD16:42Chicago O'Hare Intl

20 Oct

ORD15:35Chicago O'Hare Intl

29h 30m

2 stops

MEL13:05Melbourne

$1,970

Find similar

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, March 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 $1,168. If you’re not able to fly to Illinois in March, then February is your next best option. Flight prices from Australia to Illinois during February average around $1,185.

What is the cheapest day to depart on your flight to Illinois?

On average, the least expensive day to fly to Illinois from Australia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,753. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $2,064. These prices are subject to change though, so be sure to set up a Price Alert for flights to Illinois.

What is the cheapest time of day to depart on your flight to Illinois?

According to our data, the cheapest time of day to fly to Illinois is in the afternoon. momondo users have found flights departing from Australia to Illinois in the afternoon for as low as $1,750. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Illinois are more costly in the morning, with an average ticket price of $1,936. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 20 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,681 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Australia for as low as $1,338 on momondo.

Cheap Australia to Illinois flight deals and tips

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

Best price found	$753
Fastest flight time	19h 22m
Direct flights	None
Airports in Illinois	3 airports

The best one-way flight to Illinois from Australia in the past 72 hours is $753. The best return flight deal from Australia to Illinois found on momondo in the last 72 hours is $1,610.

The fastest flight from Australia to Illinois takes 19h 22m

There are no direct flights from Australia to Illinois. Popular non-direct routes for this connection are Sydney Kingsford Smith Airport - Chicago Midway Airport, Sydney Kingsford Smith Airport - Chicago O'Hare Intl Airport and Melbourne Airport - Chicago O'Hare Intl Airport.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

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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 April 2025, there are 11 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 $999	Free cancellation	Rating 7.5 829 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,157	Free cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,206	Free cancellation	Rating 8.0 471 reviews	Search Air New Zealand flights
Air Canada	PriceFrom $1,299	Free cancellation	Rating 7.0 9,244 reviews	Search Air Canada flights
EVA Air	PriceFrom $1,569	Free cancellation	Rating 8.4 1,186 reviews	Search EVA Air flights
United Airlines	PriceFrom $1,585	Free cancellation	Rating 7.4 8,696 reviews	Search United Airlines flights
Cathay Pacific	PriceFrom $1,635	Free cancellation	Rating 7.5 852 reviews	Search Cathay Pacific flights
ANA	PriceFrom $1,714	Free cancellation	Rating 8.3 852 reviews	Search ANA flights
Virgin Australia	PriceFrom $1,733	Free cancellation	Rating 7.5 400 reviews	Search Virgin Australia flights
Delta	PriceFrom $1,825	Free cancellation	Rating 8.0 7,929 reviews	Search Delta 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.