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

Air New Zealand, Alaska Airlines, and Air Canada 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 63% 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 November 2025, 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.

$897 Cheap Flights from New South Wales to Illinois in 2025/26

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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.

10:25 - 15:29SYD-STL

45h 04m2 stops

16:05 - 08:35STL-SYD

48h 30m2 stops

$1,342Air Canada

Find Deal

Thu, 12 Mar - Mon, 16 Mar

11:20 - 06:05SYD-ORD

35h 45m1 stop

09:34 - 09:00ORD-SYD

30h 26m2 stops

$1,394Multiple Airlines

Find Deal

Mon, 8 Dec - Wed, 31 Dec

07:45 - 21:17SYD-ORD

30h 32m2 stops

13:00 - 10:30ORD-SYD

28h 30m2 stops

$1,458Air New Zealand

Find Deal

Sun, 23 Nov - Mon, 8 Dec

11:20 - 16:12SYD-ORD

21h 52m1 stop

13:39 - 09:00ORD-SYD

26h 21m1 stop

$1,464Qantas Airways

Find Deal

Mon, 8 Dec - Wed, 31 Dec

11:20 - 15:55SYD-ORD

45h 35m1 stop

15:11 - 09:00ORD-SYD

24h 49m1 stop

$1,485American Airlines

Find Deal

Mon, 17 Nov - Wed, 3 Dec

11:20 - 23:09SYD-STL

27h 49m1 stop

18:29 - 06:55STL-SYD

44h 26m2 stops

$1,496American Airlines

Find Deal

Thu, 12 Mar - Mon, 16 Mar

11:20 - 15:17SYD-STL

20h 57m1 stop

07:00 - 09:00STL-SYD

33h 00m1 stop

$1,502Qantas Airways

Find Deal

Thu, 27 Nov - Tue, 2 Dec

12:10 - 16:27SYD-STL

21h 17m1 stop

10:00 - 07:00STL-SYD

28h 00m2 stops

$1,510United Airlines

Find Deal

Thu, 27 Nov - Tue, 2 Dec

09:30 - 16:26SYD-STL

21h 56m2 stops

05:20 - 06:55STL-SYD

34h 35m2 stops

$1,586United Airlines

Find Deal

Sun, 3 May - Sun, 17 May

08:45 - 20:21SYD-STL

26h 36m2 stops

16:17 - 08:45STL-SYD

25h 28m2 stops

$1,646Air New Zealand

Find Deal

Sat, 2 May - Sun, 3 May

Air New Zealand flights from New South Wales to Illinois

Our best Air New Zealand deals on New South Wales to Illinois flight tickets

Air New Zealand

23 Nov

SYD07:45Sydney Kingsford Smith

30h 32m

2 stops

ORD21:17Chicago O'Hare Intl

8 Dec

ORD13:00Chicago O'Hare Intl

28h 30m

2 stops

SYD10:30Sydney Kingsford Smith

$1,458

Find similar

Air New Zealand

2 May

SYD08:45Sydney Kingsford Smith

26h 36m

2 stops

STL20:21Lambert-St Louis

3 May

STL16:17Lambert-St Louis

25h 28m

2 stops

SYD08:45Sydney Kingsford Smith

$1,646

Find similar

American Airlines flights from New South Wales to Illinois

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

American Airlines

17 Nov

SYD11:20Sydney Kingsford Smith

45h 35m

1 stop

ORD15:55Chicago O'Hare Intl

3 Dec

ORD15:11Chicago O'Hare Intl

24h 49m

1 stop

SYD09:00Sydney Kingsford Smith

$1,485

Find similar

American Airlines

12 Mar

SYD11:20Sydney Kingsford Smith

27h 49m

1 stop

STL23:09Lambert-St Louis

16 Mar

STL18:29Lambert-St Louis

44h 26m

2 stops

SYD06:55Sydney Kingsford Smith

$1,496

Find similar

American Airlines

22 Nov

SYD11:20Sydney Kingsford Smith

22h 55m

2 stops

ORD17:15Chicago O'Hare Intl

7 Dec

ORD15:59Chicago O'Hare Intl

24h 01m

2 stops

SYD09:00Sydney Kingsford Smith

$1,560

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 12/3

10:25-15:29

2 stops45h 04m

Lambert-St Louis

Mon 16/3

16:05-08:35

2 stops48h 30m

$1,342

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 8/12

11:20-06:05

1 stop35h 45m

Chicago O'Hare Intl

Wed 31/12

09:34-09:00

2 stops30h 26m

$1,394

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 23/11

07:45-21:17

2 stops30h 32m

Chicago O'Hare Intl

Mon 8/12

13:00-10:30

2 stops28h 30m

$1,458

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 8/12

11:20-16:12

1 stop21h 52m

Chicago O'Hare Intl

Wed 31/12

13:39-09:00

1 stop26h 21m

$1,464

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 17/11

11:20-15:55

1 stop45h 35m

Chicago O'Hare Intl

Wed 3/12

15:11-09:00

1 stop24h 49m

$1,485

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 12/3

11:20-23:09

1 stop27h 49m

Lambert-St Louis

Mon 16/3

18:29-06:55

2 stops44h 26m

$1,496

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 27/11

11:20-15:17

1 stop20h 57m

Lambert-St Louis

Tue 2/12

07:00-09:00

1 stop33h 00m

$1,502

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 27/11

12:10-16:27

1 stop21h 17m

Lambert-St Louis

Tue 2/12

10:00-07:00

2 stops28h 00m

$1,510

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 3/5

09:30-16:26

2 stops21h 56m

Lambert-St Louis

Sun 17/5

05:20-06:55

2 stops34h 35m

$1,586

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 2/5

08:45-20:21

2 stops26h 36m

Lambert-St Louis

Sun 3/5

16:17-08:45

2 stops25h 28m

$1,646

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, March 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 $1,123. If you’re not able to fly to Illinois in March, then May is your next best option. Flight prices from New South Wales to Illinois during May average around $1,129.

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

On average, the least expensive day to fly to Illinois from New South Wales is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,715. 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 $2,020. 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 New South Wales to Illinois in the afternoon for as low as $1,712. 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 $1,895. 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 New South Wales when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,487 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 $1,186 on momondo.

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

You could potentially save up to 56% 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

Direct flights	None

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 November 2025, 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 $1,005	Free cancellation	Rating 7.5 927 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,192	Free cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,194	Free cancellation	Rating 7.1 10,400 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,521	Free cancellation	Rating 8.0 521 reviews	Search Air New Zealand flights
ANA	PriceFrom $1,605	Free cancellation	Rating 8.4 1,000 reviews	Search ANA flights
United Airlines	PriceFrom $1,658	Free cancellation	Rating 7.4 8,998 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.

An easier way to manage your Illinois trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Illinois

Popular Cities in Illinois

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Look for other cheap flights to Seattlefrom $1,134

New South Wales flight routes

Flights from Sydney Kingsford Smith to Ballina Byron

Flights from Sydney Kingsford Smith to Coolangatta Gold Coast

Flights from Sydney Kingsford Smith to Maroochydore Sunshine Coast

Flights from Ballina Byron to Sydney Kingsford Smith

Flights from Sydney Kingsford Smith to Melbourne Avalon

Flights from Sydney Kingsford Smith to Proserpine Whitsunday Coast

Cheap flights from New South Wales to Illinois from $897

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New South Wales to Illinois departing on 18/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from New South Wales to Illinois

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Air New Zealand flights from New South Wales to Illinois

Our best Air New Zealand deals on New South Wales to Illinois flight tickets

American Airlines flights from New South Wales to Illinois

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

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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

What is the cheapest month to fly to Illinois?

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

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

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

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

You could potentially save up to 56% on your flight if you consider stops on a New South Wales to Illinois flight.

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

Air New Zealand, Alaska Airlines, and Air Canada are the most popular carriers operating from New South Wales to Illinois

Which airlines fly to Illinois?

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

Direct flights

When did momondo last update prices for flights from New South Wales to Illinois?

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

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

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Illinois trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular Cities in Illinois

Popular flights according to clicks in the last 7 days on momondo