What airlines fly to Australia?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Australia from Illinois according to our data. Qantas Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 10 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

Alaska Airlines, Philippine Airlines, and Turkish Airlines are the most popular carriers operating from Illinois to Australia

How long is the flight from Illinois to Australia?

Flight times from Illinois to Australia vary, but if you’re flying out of Peoria and flying into Sydney (one of the most popular routes), then the duration is 23h 52m on average. Another popular route from Illinois to Australia is flying from Chicago to Sydney, which will take roughly 24h 43m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Illinois to Australia refresh daily.

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

As of November 2026, there are 10 operators available to choose from for flights from Illinois to Australia.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Australia.

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

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$586 Cheap Flights from Illinois to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:59 am - 12:25 pmORD Chicago O'Hare Intl-MEL Melbourne

34h 26m3 stops Dallas/Fort Worth Los Angeles Nadi

1:35 pm - 5:01 amMEL Melbourne-ORD Chicago O'Hare Intl

32h 26m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,161Multiple Airlines

Fri, Dec 4 - Mon, Dec 7

5:40 am - 9:30 amORD Chicago O'Hare Intl-MEL Melbourne

34h 50m1 stop Los Angeles

1:35 pm - 7:05 amMEL Melbourne-ORD Chicago O'Hare Intl

34h 30m2 stops Nadi Los Angeles

$1,170Multiple Airlines

Wed, Feb 24 - Sat, Feb 27

6:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

4:10 pm - 3:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

39h 20m1 stop Doha Hamad Intl

$1,262Qatar Airways

Mon, Mar 1 - Thu, Mar 18

6:50 pm - 5:50 pmORD Chicago O'Hare Intl-MEL Melbourne

30h 00m1 stop Doha Hamad Intl

4:10 pm - 3:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

39h 20m1 stop Doha Hamad Intl

$1,262Qatar Airways

Sun, Mar 7 - Mon, Mar 22

8:21 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 14m2 stops Houston George Bush Intcntl Auckland Intl

2:05 pm - 8:22 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 17m2 stops Auckland Intl Los Angeles

$1,308Air New Zealand

Sat, Feb 27 - Mon, Mar 8

8:21 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 14m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 7:56 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 06m2 stops Auckland Intl Houston George Bush Intcntl

$1,308Air New Zealand

Sat, Feb 20 - Tue, Mar 2

1:38 pm - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 47m1 stop San Francisco

9:10 am - 2:16 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 06m1 stop Los Angeles

$1,314American Airlines

Fri, Mar 26 - Tue, Apr 6

3:25 pm - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 00m1 stop Los Angeles

11:20 am - 7:45 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 25m1 stop Los Angeles

$1,314American Airlines

Fri, Mar 5 - Mon, Mar 15

9:05 pm - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

40h 20m1 stop Los Angeles

7:15 pm - 4:15 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

38h 00m2 stops Auckland Intl Los Angeles

$1,339Qantas Airways

Fri, Dec 4 - Fri, Dec 11

4:54 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 01m1 stop Dallas/Fort Worth

2:05 pm - 6:29 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

21h 24m1 stop Dallas/Fort Worth

$1,448Qantas Airways

Sun, Feb 14 - Sun, Feb 21

Cheap last minute flights

Enter your travel dates to find the best prices.

7:55 pm - 9:50 pmORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

56h 55m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 6:56 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

24h 06m2 stops Auckland Intl Los Angeles

$1,369Air New Zealand

Sat, Nov 14 - Fri, Nov 20

9:57 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

41h 38m2 stops San Francisco Auckland Intl

7:25 pm - 10:00 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

43h 35m2 stops Auckland Intl Los Angeles

$1,394Air New Zealand

Tue, Nov 10 - Tue, Nov 17

3:30 pm - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

44h 17m1 stop Vancouver Intl

$1,506Air Canada

Sat, Nov 14 - Fri, Nov 27

6:50 pm - 5:30 pmORD Chicago O'Hare Intl-BNE Brisbane

30h 40m1 stop Doha Hamad Intl

9:55 pm - 2:30 pmBNE Brisbane-ORD Chicago O'Hare Intl

32h 35m1 stop Doha Hamad Intl

$1,519Qatar Airways

Thu, Nov 12 - Wed, Nov 25

4:36 pm - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

44h 49m2 stops Dallas/Fort Worth Los Angeles

10:20 pm - 12:30 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

31h 10m1 stop Hong Kong Intl

$1,526Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

6:50 pm - 11:20 pmORD Chicago O'Hare Intl-MEL Melbourne

35h 30m1 stop Doha Hamad Intl

5:10 pm - 2:30 pmMEL Melbourne-ORD Chicago O'Hare Intl

38h 20m1 stop Doha Hamad Intl

$1,534Qatar Airways

Tue, Nov 10 - Fri, Nov 20

6:29 am - 7:30 amORD Chicago O'Hare Intl-MEL Melbourne

32h 01m2 stops Los Angeles Manila Ninoy Aquino Intl

9:20 am - 4:55 pmMEL Melbourne-ORD Chicago O'Hare Intl

24h 35m1 stop Manila Ninoy Aquino Intl

$1,567Multiple Airlines

Thu, Nov 12 - Wed, Nov 25

1:44 pm - 5:00 amORD Chicago O'Hare Intl-MEL Melbourne

22h 16m1 stop Dallas/Fort Worth

12:00 pm - 7:59 pmMEL Melbourne-ORD Chicago O'Hare Intl

24h 59m1 stop Dallas/Fort Worth

$1,662Qantas Airways

Sat, Nov 14 - Sun, Dec 6

6:45 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles

11:15 am - 10:31 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

28h 16m1 stop Los Angeles

$1,776Qantas Airways

Sat, Nov 14 - Fri, Nov 20

3:30 pm - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Vancouver Intl

4:00 pm - 6:52 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

43h 52m2 stops Vancouver Intl Denver Intl

$1,820Air Canada

Sun, Nov 15 - Sat, Dec 12

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Qantas Airways flights from Illinois to Australia

Our best Qantas Airways deals on Illinois to Australia flight tickets

Qantas Airways

Dec 4

ORD9:05 pmChicago O'Hare Intl

40h 20m

1 stop

SYD6:25 amSydney Kingsford Smith

Dec 11

SYD7:15 pmSydney Kingsford Smith

38h 00m

2 stops

ORD4:15 pmChicago O'Hare Intl

$1,339

Qantas Airways

Nov 17

ORD3:25 pmChicago O'Hare Intl

24h 35m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 30

SYD11:10 amSydney Kingsford Smith

23h 01m

1 stop

ORD5:11 pmChicago O'Hare Intl

$1,636

Qantas Airways

Nov 14

ORD1:44 pmChicago O'Hare Intl

22h 16m

1 stop

MEL5:00 amMelbourne

Dec 6

MEL12:00 pmMelbourne

24h 59m

1 stop

ORD7:59 pmChicago O'Hare Intl

$1,662

American Airlines flights from Illinois to Australia

Our best American Airlines deals on Illinois to Australia flight tickets

American Airlines

Feb 12

ORD4:59 pmChicago O'Hare Intl

20h 51m

1 stop

BNE5:50 amBrisbane

Feb 28

BNE1:10 pmBrisbane

25h 45m

1 stop

ORD10:55 pmChicago O'Hare Intl

$1,274

American Airlines

Feb 12

ORD3:05 pmChicago O'Hare Intl

22h 45m

2 stops

BNE5:50 amBrisbane

Feb 28

BNE1:10 pmBrisbane

22h 44m

2 stops

ORD7:54 pmChicago O'Hare Intl

$1,278

American Airlines

Apr 8

ORD5:25 pmChicago O'Hare Intl

22h 40m

2 stops

SYD7:05 amSydney Kingsford Smith

Apr 27

SYD12:00 pmSydney Kingsford Smith

22h 55m

1 stop

ORD7:55 pmChicago O'Hare Intl

$1,368

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Fri 12/4

8:59 am-12:25 pm

3 stops34h 26m

Melbourne

Mon 12/7

1:35 pm-5:01 am

3 stops32h 26m

$1,161

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Wed 2/24

5:40 am-9:30 am

1 stop34h 50m

Melbourne

Sat 2/27

1:35 pm-7:05 am

2 stops34h 30m

$1,170

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Mon 3/1

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Thu 3/18

4:10 pm-3:30 pm

1 stop39h 20m

$1,262

ChicagoMelbourne

ORD Chicago O'Hare Intl - MEL Melbourne

ORDMEL

Chicago O'Hare Intl

Sun 3/7

6:50 pm-5:50 pm

1 stop30h 00m

Melbourne

Mon 3/22

4:10 pm-3:30 pm

1 stop39h 20m

$1,262

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 2/27

8:21 pm-8:35 am

2 stops43h 14m

Sydney Kingsford Smith

Mon 3/8

2:05 pm-8:22 pm

2 stops23h 17m

$1,308

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 2/20

8:21 pm-8:35 am

2 stops43h 14m

Sydney Kingsford Smith

Tue 3/2

11:50 am-7:56 pm

2 stops25h 06m

$1,308

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 3/26

1:38 pm-6:25 am

1 stop24h 47m

Sydney Kingsford Smith

Tue 4/6

9:10 am-2:16 pm

1 stop20h 06m

$1,314

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 3/5

3:25 pm-6:25 am

1 stop22h 00m

Sydney Kingsford Smith

Mon 3/15

11:20 am-7:45 pm

1 stop24h 25m

$1,314

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 12/4

9:05 pm-6:25 am

1 stop40h 20m

Sydney Kingsford Smith

Fri 12/11

7:15 pm-4:15 pm

2 stops38h 00m

$1,339

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 2/14

4:54 pm-6:55 am

1 stop21h 01m

Sydney Kingsford Smith

Sun 2/21

2:05 pm-6:29 pm

1 stop21h 24m

$1,448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Australia

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 Australia?

The month of January is, on average, the cheapest month to fly to Australia from Illinois, with most prices found around $1,183. If you aren’t able to travel during the month of January, then book flights to Australia from Illinois during February instead. Flights to Australia in February, while not as cheap as those in January, still average around $1,271.

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

You are more likely to see cheaper flights to Australia from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,520 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Illinois for as low as $1,124 on momondo.

Can stopping save me money on Illinois to Australia flights?

You could potentially save up to 18% on your flight if you consider stops on a Illinois to Australia flight.

Cheap Illinois to Australia flight deals and tips

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

Best Price Found	$586
Fastest flight time	22h 10m
Direct flights	None

The best one-way flight to Australia from Illinois in the past 72 hours is $586. The best round-trip flight deal from Illinois to Australia found on momondo in the last 72 hours is $1,161.

The fastest flight from Illinois to Australia takes 22h 10m

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

Search flight deals

Frequently asked questions about flying from Illinois to Australia

When did momondo last update prices for flights from Illinois to Australia?
Prices for flights from Illinois to Australia refresh daily.
How many operators does momondo search for flights from Illinois to Australia?
As of November 2026, there are 10 operators available to choose from for flights from Illinois to Australia.
How old do you have to be to fly from Illinois to Australia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Australia

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,699 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,875 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 262 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $911	Free Cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,144	Free Cancellation	Rating 7.3 10,470 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,166	Free Cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,339 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,218	Free Cancellation	Rating 7.4 3,707 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,279	Free Cancellation	Rating 8.0 683 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,541 reviews	Search Cathay Pacific flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Australia for you.

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

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

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

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 Australia from Illinois.

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

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