What is the cheapest airline that flies from New South Wales to Illinois?

American Airlines, United Airlines, and Cathay Pacific are the most popular carriers operating from New South Wales to Illinois

Which airlines fly to Illinois?

Qantas Airways, Air Canada and American Airlines are the top three most popular airlines that fly to Illinois from New South Wales according to our data. Qantas Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 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 New South Wales to Illinois?

Prices for flights from New South Wales to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from New South Wales to Illinois?

As of September 2026, there are 5 operators available to choose from for flights from New South Wales to Illinois.

How old do you have to be to fly from New South Wales to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New South Wales to Illinois.

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

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$558 Cheap Flights from New South Wales to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from New South Wales to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:15 - 00:45SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 30m3 stops Nadi Los Angeles Dallas/Fort Worth

06:30 - 12:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

38h 05m3 stops Denver Intl Los Angeles Nadi

$1,311Multiple Airlines

Thu, 1 Oct - Mon, 26 Oct

10:20 - 20:06SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 46m1 stop Vancouver Intl

15:40 - 08:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

$1,330Air Canada

Mon, 5 Oct - Mon, 19 Oct

10:20 - 14:43SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 23m1 stop Vancouver Intl

11:05 - 08:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

29h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$1,333Air Canada

Mon, 5 Oct - Mon, 19 Oct

14:00 - 05:13SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

32h 13m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

06:30 - 12:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

37h 05m3 stops Denver Intl Los Angeles Nadi

$1,438Multiple Airlines

Thu, 5 Nov - Mon, 9 Nov

11:20 - 18:08SYD Sydney Kingsford Smith-STL Lambert-St Louis

23h 48m2 stops Los Angeles Chicago O'Hare Intl

19:06 - 06:20STL Lambert-St Louis-SYD Sydney Kingsford Smith

42h 14m1 stop San Francisco

$1,562United Airlines

Wed, 20 Jan - Sat, 13 Feb

13:20 - 17:54SYD Sydney Kingsford Smith-STL Lambert-St Louis

21h 34m1 stop San Francisco

19:06 - 06:20STL Lambert-St Louis-SYD Sydney Kingsford Smith

42h 14m1 stop San Francisco

$1,562United Airlines

Wed, 20 Jan - Sat, 13 Feb

10:10 - 23:46SYD Sydney Kingsford Smith-STL Lambert-St Louis

29h 36m1 stop Los Angeles

19:10 - 11:45STL Lambert-St Louis-SYD Sydney Kingsford Smith

24h 35m2 stops Dallas/Fort Worth Brisbane

$1,578American Airlines

Wed, 21 Oct - Sat, 24 Oct

10:10 - 23:46SYD Sydney Kingsford Smith-STL Lambert-St Louis

29h 36m1 stop Los Angeles

19:10 - 11:45STL Lambert-St Louis-SYD Sydney Kingsford Smith

24h 35m2 stops Dallas/Fort Worth Brisbane

$1,580American Airlines

Wed, 21 Oct - Sat, 24 Oct

11:50 - 21:45SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 55m2 stops Auckland Intl San Francisco

09:21 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 14m2 stops Houston George Bush Intcntl Auckland Intl

$1,754Air New Zealand

Wed, 4 Nov - Mon, 9 Nov

11:50 - 21:45SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 55m2 stops Auckland Intl San Francisco

09:21 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 14m2 stops Houston George Bush Intcntl Auckland Intl

$1,760Air New Zealand

Wed, 4 Nov - Mon, 9 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:15 - 16:47SYD Sydney Kingsford Smith-STL Lambert-St Louis

22h 32m2 stops Los Angeles Minneapolis St Paul

07:00 - 08:30STL Lambert-St Louis-SYD Sydney Kingsford Smith

32h 30m2 stops Atlanta Hartsfield-Jackson Los Angeles

$1,656Delta

Tue, 15 Sep - Thu, 5 Nov

17:50 - 23:30SYD Sydney Kingsford Smith-STL Lambert-St Louis

20h 40m1 stop Los Angeles

08:10 - 09:00STL Lambert-St Louis-SYD Sydney Kingsford Smith

31h 50m1 stop Los Angeles

$1,704American Airlines

Tue, 15 Sep - Thu, 5 Nov

17:50 - 23:30SYD Sydney Kingsford Smith-STL Lambert-St Louis

20h 40m1 stop Los Angeles

14:54 - 09:00STL Lambert-St Louis-SYD Sydney Kingsford Smith

25h 06m2 stops Dallas/Fort Worth Los Angeles

$1,704American Airlines

Tue, 15 Sep - Thu, 5 Nov

12:00 - 18:25SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

21h 25m1 stop Dallas/Fort Worth

11:47 - 07:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

52h 18m2 stops Sacramento Intl Los Angeles

$2,142American Airlines

Wed, 16 Sep - Tue, 22 Sep

12:00 - 23:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 30m1 stop Dallas/Fort Worth

11:47 - 07:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

52h 18m2 stops Sacramento Intl Los Angeles

$2,142American Airlines

Tue, 15 Sep - Tue, 22 Sep

14:05 - 13:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

38h 50m1 stop Hong Kong Intl

16:15 - 11:45ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 30m1 stop Hong Kong Intl

$2,300Cathay Pacific

Wed, 16 Sep - Tue, 22 Sep

20:45 - 15:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 20m1 stop Doha Hamad Intl

19:20 - 22:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

36h 00m2 stops Doha Hamad Intl Brisbane

$2,496Qatar Airways

Wed, 16 Sep - Mon, 21 Sep

14:50 - 15:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

39h 15m1 stop Doha Hamad Intl

19:20 - 22:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

36h 00m2 stops Doha Hamad Intl Brisbane

$2,596Qatar Airways

Tue, 15 Sep - Mon, 21 Sep

10:10 - 13:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

42h 45m1 stop Hong Kong Intl

16:15 - 20:10ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

36h 55m1 stop Hong Kong Intl

$2,619Cathay Pacific

Tue, 15 Sep - Tue, 22 Sep

07:40 - 13:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

45h 15m1 stop Hong Kong Intl

16:15 - 20:10ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

36h 55m1 stop Hong Kong Intl

$2,619Cathay Pacific

Tue, 15 Sep - Mon, 21 Sep

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Cathay Pacific flights from New South Wales to Illinois

Our best Cathay Pacific deals on New South Wales to Illinois flight tickets

Cathay Pacific

5 Nov

OOL08:35Coolangatta Gold Coast

43h 55m

2 stops

ORD12:30Chicago O'Hare Intl

9 Nov

ORD14:10Chicago O'Hare Intl

31h 55m

2 stops

OOL14:05Coolangatta Gold Coast

$2,186

Cathay Pacific

16 Sept

SYD14:05Sydney Kingsford Smith

38h 50m

1 stop

ORD13:55Chicago O'Hare Intl

22 Sept

ORD16:15Chicago O'Hare Intl

28h 30m

1 stop

SYD11:45Sydney Kingsford Smith

$2,300

Cathay Pacific

17 Sept

SYD07:40Sydney Kingsford Smith

45h 15m

1 stop

ORD13:55Chicago O'Hare Intl

30 Sept

ORD16:15Chicago O'Hare Intl

28h 30m

1 stop

SYD11:45Sydney Kingsford Smith

$2,340

Delta flights from New South Wales to Illinois

Our best Delta deals on New South Wales to Illinois flight tickets

Delta

15 Sept

SYD09:15Sydney Kingsford Smith

22h 32m

2 stops

STL16:47Lambert-St Louis

5 Nov

STL07:00Lambert-St Louis

32h 30m

2 stops

SYD08:30Sydney Kingsford Smith

$1,656

Delta

17 Sept

SYD09:15Sydney Kingsford Smith

29h 16m

1 stop

ORD23:31Chicago O'Hare Intl

30 Sept

ORD18:59Chicago O'Hare Intl

20h 51m

1 stop

SYD06:50Sydney Kingsford Smith

$2,237

Delta

17 Sept

SYD09:15Sydney Kingsford Smith

29h 16m

1 stop

ORD23:31Chicago O'Hare Intl

30 Sept

ORD18:59Chicago O'Hare Intl

20h 51m

1 stop

SYD06:50Sydney Kingsford Smith

$2,239

momondo Fare Finder

Use the filters below to find and compare flights from New South Wales to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Thu 1/10

13:15-00:45

3 stops26h 30m

Chicago O'Hare Intl

Mon 26/10

06:30-12:35

3 stops38h 05m

$1,311

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 5/10

10:20-20:06

1 stop25h 46m

Chicago O'Hare Intl

Mon 19/10

15:40-08:20

1 stop24h 40m

$1,330

Fastest return journey

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 5/10

10:20-14:43

1 stop20h 23m

Chicago O'Hare Intl

Mon 19/10

11:05-08:20

2 stops29h 15m

$1,333

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Thu 5/11

14:00-05:13

3 stops32h 13m

Chicago O'Hare Intl

Mon 9/11

06:30-12:35

3 stops37h 05m

$1,438

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 20/1

11:20-18:08

2 stops23h 48m

Lambert-St Louis

Sat 13/2

19:06-06:20

1 stop42h 14m

$1,562

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 20/1

13:20-17:54

1 stop21h 34m

Lambert-St Louis

Sat 13/2

19:06-06:20

1 stop42h 14m

$1,562

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:10-23:46

1 stop29h 36m

Lambert-St Louis

Sat 24/10

19:10-11:45

2 stops24h 35m

$1,578

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:10-23:46

1 stop29h 36m

Lambert-St Louis

Sat 24/10

19:10-11:45

2 stops24h 35m

$1,580

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Wed 4/11

11:50-21:45

2 stops26h 55m

Chicago O'Hare Intl

Mon 9/11

09:21-08:35

2 stops30h 14m

$1,754

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Wed 4/11

11:50-21:45

2 stops26h 55m

Chicago O'Hare Intl

Mon 9/11

09:21-08:35

2 stops30h 14m

$1,760

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 New South Wales 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

What is the cheapest month to fly to Illinois?

In general, October is the cheapest month to fly from New South Wales to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,444. If you’re not able to fly to Illinois in October, then September is your next best option. Flight prices from New South Wales to Illinois during September average around $1,474.

How far in advance should I book a flight from New South Wales to Illinois?

You are more likely to see cheaper flights to Illinois from New South Wales when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,940 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 New South Wales for as low as $1,211 on momondo.

Can stopping save me money on New South Wales to Illinois flights?

You could potentially save up to 17% on your flight if you consider stops on a New South Wales to Illinois flight.

Cheap New South Wales to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New South Wales to Illinois

Best price found	$558
Fastest flight time	22h 43m
Direct flights	None

The best one-way flight to Illinois from New South Wales in the past 72 hours is $558. The best return flight deal from New South Wales to Illinois found on momondo in the last 72 hours is $1,311.

The fastest flight from New South Wales to Illinois takes 22h 43m

There are no direct flights from New South Wales to Illinois. There are no popular flight routes from New South Wales to Illinois.

Search flight deals

Frequently asked questions about flying from New South Wales to Illinois

When did momondo last update prices for flights from New South Wales to Illinois?
Prices for flights from New South Wales to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from New South Wales to Illinois?
As of September 2026, there are 5 operators available to choose from for flights from New South Wales to Illinois.
How old do you have to be to fly from New South Wales to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New South Wales to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from New South Wales to Illinois

Compare and see reviews for airlines that fly from New South Wales to Illinois with momondo

Airline	Rating	Free cancellation	Price
Air Canada	PriceFrom $1,049	Free cancellation	Rating 7.1 11,609 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,223	Free cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $1,226	Free cancellation	Rating 7.5 1,092 reviews	Search Qantas Airways flights
Air New Zealand	PriceFrom $1,310	Free cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights
United Airlines	PriceFrom $1,369	Free cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from New South Wales to Illinois?

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

Can I find flights from New South Wales to Illinois with flexible booking policies on momondo?

All flight searches from New South Wales to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from New South Wales to Illinois?

Once all potential New South Wales to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Illinois from New South Wales are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.