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

Air New Zealand, Delta, and American Airlines are the most popular carriers operating from New South Wales 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 New South Wales according to our data. Qantas Airways is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 6 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 February 2026, there are 6 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.

$884 Cheap Flights from New South Wales to Illinois in 2026

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Find the cheapest flights from New South Wales to Illinois

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:20 - 23:59

SYD

STL

28h 39m

2 stops

14:31 - 09:00

STL

SYD

26h 29m

2 stops

$1,495American Airlines

Thu, 12 Mar - Mon, 16 Mar

12:00 - 16:51

SYD

STL

19h 51m

1 stop

19:46 - 06:55

STL

SYD

20h 09m

1 stop

$1,496Qantas Airways

Thu, 6 Aug - Sun, 30 Aug

10:20 - 18:17

SYD

STL

22h 57m

1 stop

18:49 - 06:55

STL

SYD

45h 06m

2 stops

$1,520United Airlines

Thu, 6 Aug - Sat, 29 Aug

11:50 - 22:16

SYD

STL

26h 26m

1 stop

16:47 - 07:00

STL

SYD

22h 13m

1 stop

$1,522United Airlines

Thu, 12 Mar - Mon, 16 Mar

11:20 - 20:10

SYD

ORD

49h 50m

2 stops

07:15 - 08:35

ORD

SYD

33h 20m

2 stops

$1,560Air Canada

Thu, 5 Mar - Wed, 18 Mar

11:20 - 20:10

SYD

ORD

49h 50m

2 stops

15:35 - 08:35

ORD

SYD

25h 00m

1 stop

$1,566Air Canada

Thu, 5 Mar - Wed, 18 Mar

09:40 - 17:22

SYD

MDW

23h 42m

2 stops

13:24 - 06:50

MDW

SYD

26h 26m

2 stops

$1,721Delta

Thu, 19 Mar - Tue, 21 Apr

09:40 - 18:40

SYD

MDW

25h 00m

2 stops

13:24 - 06:50

MDW

SYD

26h 26m

2 stops

$1,728Delta

Thu, 19 Mar - Tue, 21 Apr

10:25 - 13:55

OOL

ORD

42h 30m

2 stops

15:35 - 09:40

ORD

OOL

51h 05m

2 stops

$2,234Cathay Pacific

Thu, 19 Mar - Mon, 23 Mar

10:25 - 13:55

OOL

ORD

42h 30m

2 stops

15:35 - 09:40

ORD

OOL

51h 05m

2 stops

$2,236Cathay Pacific

Thu, 19 Mar - Mon, 23 Mar

Qantas Airways flights from New South Wales to Illinois

Our best Qantas Airways deals on New South Wales to Illinois flight tickets

Qantas Airways

6 Aug

SYD12:00Sydney Kingsford Smith

19h 51m

1 stop

STL16:51Lambert-St Louis

30 Aug

STL19:46Lambert-St Louis

20h 09m

1 stop

SYD06:55Sydney Kingsford Smith

$1,496

Qantas Airways

6 Aug

SYD12:00Sydney Kingsford Smith

19h 51m

1 stop

STL16:51Lambert-St Louis

30 Aug

STL19:46Lambert-St Louis

20h 09m

1 stop

SYD06:55Sydney Kingsford Smith

$1,503

Qantas Airways

5 Aug

SYD17:50Sydney Kingsford Smith

20h 18m

1 stop

STL23:08Lambert-St Louis

29 Aug

STL19:46Lambert-St Louis

20h 09m

1 stop

SYD06:55Sydney Kingsford Smith

$1,537

United Airlines flights from New South Wales to Illinois

Our best United Airlines deals on New South Wales to Illinois flight tickets

United Airlines

6 Aug

SYD10:20Sydney Kingsford Smith

25h 23m

2 stops

STL20:43Lambert-St Louis

29 Aug

STL08:50Lambert-St Louis

55h 10m

2 stops

SYD07:00Sydney Kingsford Smith

$1,520

United Airlines

12 Mar

SYD11:50Sydney Kingsford Smith

26h 26m

1 stop

STL22:16Lambert-St Louis

16 Mar

STL16:47Lambert-St Louis

22h 13m

1 stop

SYD07:00Sydney Kingsford Smith

$1,522

United Airlines

4 June

SYD10:20Sydney Kingsford Smith

22h 57m

1 stop

STL18:17Lambert-St Louis

8 June

STL14:57Lambert-St Louis

25h 03m

2 stops

SYD07:00Sydney Kingsford Smith

$1,523

Fly from

Fly to

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 12/3

11:20-23:59

2 stops28h 39m

Lambert-St Louis

Mon 16/3

14:31-09:00

2 stops26h 29m

$1,495

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 6/8

12:00-16:51

1 stop19h 51m

Lambert-St Louis

Sun 30/8

19:46-06:55

1 stop20h 09m

$1,496

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 6/8

10:20-18:17

1 stop22h 57m

Lambert-St Louis

Sat 29/8

18:49-06:55

2 stops45h 06m

$1,520

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 12/3

11:50-22:16

1 stop26h 26m

Lambert-St Louis

Mon 16/3

16:47-07:00

1 stop22h 13m

$1,522

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/3

11:20-20:10

2 stops49h 50m

Chicago O'Hare Intl

Wed 18/3

07:15-08:35

2 stops33h 20m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/3

11:20-20:10

2 stops49h 50m

Chicago O'Hare Intl

Wed 18/3

15:35-08:35

1 stop25h 00m

$1,566

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Thu 19/3

09:40-17:22

2 stops23h 42m

Chicago Midway

Tue 21/4

13:24-06:50

2 stops26h 26m

$1,721

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Thu 19/3

09:40-18:40

2 stops25h 00m

Chicago Midway

Tue 21/4

13:24-06:50

2 stops26h 26m

$1,728

CoolangattaChicago

OOL - ORD

OOLORD

Coolangatta Gold Coast

Thu 19/3

10:25-13:55

2 stops42h 30m

Chicago O'Hare Intl

Mon 23/3

15:35-09:40

2 stops51h 05m

$2,234

CoolangattaChicago

OOL - ORD

OOLORD

Coolangatta Gold Coast

Thu 19/3

10:25-13:55

2 stops42h 30m

Chicago O'Hare Intl

Mon 23/3

15:35-09:40

2 stops51h 05m

$2,236

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, April 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 $1,201. If you’re not able to fly to Illinois in April, then March is your next best option. Flight prices from New South Wales to Illinois during March average around $1,219.

How far in advance should I book a flight 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 $1,692 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 $1,134 on momondo.

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

You could potentially save up to 25% 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

Fastest flight time	19h 33m
Direct flights	None

The fastest flight from New South Wales to Illinois takes 19h 33m

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

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 February 2026, there are 6 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
Qantas Airways	PriceFrom $984	Free cancellation	Rating 7.5 997 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,072	Free cancellation	Rating 7.1 10,742 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,103	Free cancellation	Rating 7.2 11,344 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,338	Free cancellation	Rating 8.0 601 reviews	Search Air New Zealand flights
United Airlines	PriceFrom $1,398	Free cancellation	Rating 7.4 9,344 reviews	Search United Airlines flights
ANA	PriceFrom $1,486	Free cancellation	Rating 8.4 1,100 reviews	Search ANA 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.