Which airport is the most popular for stopovers for flights between Chicago and Sydney?

Los Angeles (LAX) was the most common stop: 71% of momondo users choosing one-stop flights on this route connected there.

What is the cheapest airline that flies from Chicago to Sydney Kingsford Smith?

Air Canada, Turkish Airlines, and Alaska Airlines are the most popular carriers operating from Chicago to Sydney Kingsford Smith

Which stopover airport has the shortest connection time from Chicago to Sydney?

Los Angeles (LAX) has the shortest average stopover time for this route: 2h 00m.

Which stopover airport offers the lowest fares from Chicago to Sydney?

Flights via Nadi (NAN) offer the lowest average return price of $1,021.

Which stopover airport has the shortest travel time from Chicago to Sydney?

Flights connecting via Nadi (NAN) have the shortest average one-way travel time: 19h 00m.

When did momondo last update prices for flights from Chicago to Sydney Kingsford Smith Airport?

Prices for flights from Chicago to Sydney Kingsford Smith Airport were last updated today.

How many operators does momondo search for flights from Chicago to Sydney Kingsford Smith Airport?

As of August 2026, there is 1 operator available to choose from for flights from Chicago to Sydney Kingsford Smith Airport.

How old do you have to be to fly from Chicago to Sydney Kingsford Smith Airport?

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 stopovers 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 Chicago to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport 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.

$844 Cheap Flights from Chicago to Sydney in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:30 - 07:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 35m2 stops Denver Intl Los Angeles Los Angeles

17:50 - 05:38SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 48m2 stops Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,727Multiple Airlines

Mon, 14 Sep - Wed, 23 Sep

14:10 - 10:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 25m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 18:54SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 59m2 stops Auckland Intl Los Angeles Los Angeles

$1,728Air New Zealand

Mon, 1 Feb - Wed, 3 Mar

14:35 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 00m2 stops Los Angeles Los Angeles Auckland Intl

14:05 - 20:22SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 17m2 stops Auckland Intl Los Angeles Los Angeles

$1,728Air New Zealand

Mon, 4 Jan - Mon, 8 Feb

15:00 - 10:40ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 40m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 18:56SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 01m2 stops Auckland Intl Los Angeles Los Angeles

$1,728Air New Zealand

Wed, 21 Oct - Mon, 9 Nov

11:00 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 35m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 20:22SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 27m2 stops Auckland Intl Los Angeles Los Angeles

$1,728Air New Zealand

Mon, 1 Feb - Wed, 10 Feb

13:00 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 35m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 20:35SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 40m2 stops Auckland Intl Los Angeles Los Angeles

$1,730Air New Zealand

Mon, 2 Nov - Tue, 10 Nov

14:10 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 25m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 18:54SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 59m2 stops Auckland Intl Los Angeles Los Angeles

$1,730Air New Zealand

Mon, 1 Feb - Wed, 3 Mar

14:10 - 10:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 25m2 stops Los Angeles Los Angeles Auckland Intl

09:55 - 18:54SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 59m2 stops Auckland Intl Los Angeles Los Angeles

$1,731Air New Zealand

Mon, 1 Feb - Wed, 3 Mar

18:45 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles Los Angeles

11:15 - 20:04SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 49m1 stop Los Angeles Los Angeles

$2,199Qantas Airways

Tue, 1 Dec - Sun, 13 Dec

17:59 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 01m1 stop Los Angeles Los Angeles

11:15 - 16:51SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 36m1 stop Los Angeles Los Angeles

$2,220Qantas Airways

Wed, 30 Dec - Tue, 2 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

15:40 - 07:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

09:20 - 14:36SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,868Air Canada

Mon, 17 Aug - Tue, 25 Aug

11:05 - 07:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

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

09:20 - 14:36SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,872Air Canada

Mon, 17 Aug - Tue, 25 Aug

15:40 - 07:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

24h 40m1 stop Vancouver Intl

09:20 - 14:36SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,974Air Canada

Sun, 16 Aug - Sat, 29 Aug

21:13 - 07:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 17m1 stop Los Angeles Los Angeles

17:50 - 05:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m1 stop Los Angeles Los Angeles

$1,977Multiple Airlines

Sat, 15 Aug - Sat, 29 Aug

11:05 - 07:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

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

09:20 - 14:36SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$1,978Air Canada

Sun, 16 Aug - Sat, 29 Aug

12:45 - 07:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Edmonton Vancouver Intl

09:20 - 14:36SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 16m1 stop Vancouver Intl

$2,040Air Canada

Sat, 15 Aug - Sat, 29 Aug

21:13 - 18:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 37m2 stops Los Angeles Los Angeles Honolulu

17:50 - 05:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m1 stop Los Angeles Los Angeles

$2,091Multiple Airlines

Sun, 16 Aug - Sat, 22 Aug

21:13 - 18:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 37m2 stops Los Angeles Los Angeles Honolulu

17:50 - 05:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m1 stop Los Angeles Los Angeles

$2,093Multiple Airlines

Sun, 16 Aug - Sat, 22 Aug

19:00 - 07:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 30m1 stop Los Angeles Los Angeles

17:50 - 23:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 10m1 stop Los Angeles Los Angeles

$4,080Qantas Airways

Sun, 16 Aug - Sat, 22 Aug

19:00 - 07:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

21h 05m1 stop Los Angeles Los Angeles

06:25 - 17:29SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 04m2 stops Melbourne Los Angeles Los Angeles

$4,308Qantas Airways

Sun, 16 Aug - Sat, 22 Aug

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Delta flights from Chicago to Sydney

Our best Delta deals on Chicago to Sydney flight tickets

Delta

6 Sept

MDW10:56Chicago Midway

28h 54m

2 stops

SYD06:50Sydney Kingsford Smith

29 Sept

SYD09:15Sydney Kingsford Smith

24h 04m

2 stops

MDW18:19Chicago Midway

$2,264

Delta

25 Nov

MDW13:22Chicago Midway

26h 08m

2 stops

SYD08:30Sydney Kingsford Smith

9 Dec

SYD10:40Sydney Kingsford Smith

22h 59m

2 stops

MDW16:39Chicago Midway

$2,279

Delta

29 Dec

MDW13:05Chicago Midway

26h 25m

2 stops

SYD08:30Sydney Kingsford Smith

1 Feb

SYD10:40Sydney Kingsford Smith

23h 10m

2 stops

MDW16:50Chicago Midway

$2,282

Air Canada flights from Chicago to Sydney

Our best Air Canada deals on Chicago to Sydney flight tickets

Air Canada

30 Aug

ORD15:40Chicago O'Hare Intl

24h 40m

1 stop

SYD07:20Sydney Kingsford Smith

13 Sept

SYD09:20Sydney Kingsford Smith

20h 23m

1 stop

ORD14:43Chicago O'Hare Intl

$1,762

Air Canada

30 Aug

ORD15:40Chicago O'Hare Intl

24h 40m

1 stop

SYD07:20Sydney Kingsford Smith

13 Sept

SYD09:20Sydney Kingsford Smith

37h 40m

2 stops

ORD08:00Chicago O'Hare Intl

$1,773

Air Canada

14 Sept

ORD11:05Chicago O'Hare Intl

29h 15m

2 stops

SYD07:20Sydney Kingsford Smith

23 Sept

SYD09:20Sydney Kingsford Smith

20h 23m

1 stop

ORD14:43Chicago O'Hare Intl

$1,796

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 14/9

06:30-07:05

2 stops33h 35m

Sydney Kingsford Smith

Wed 23/9

17:50-05:38

2 stops26h 48m

$1,727

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

14:10-10:35

2 stops27h 25m

Sydney Kingsford Smith

Wed 3/3

09:55-18:54

2 stops25h 59m

$1,728

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 4/1

14:35-08:35

2 stops25h 00m

Sydney Kingsford Smith

Mon 8/2

14:05-20:22

2 stops23h 17m

$1,728

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 21/10

15:00-10:40

2 stops27h 40m

Sydney Kingsford Smith

Mon 9/11

09:55-18:56

2 stops26h 01m

$1,728

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

11:00-08:35

2 stops28h 35m

Sydney Kingsford Smith

Wed 10/2

09:55-20:22

2 stops27h 27m

$1,728

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 2/11

13:00-08:35

2 stops26h 35m

Sydney Kingsford Smith

Tue 10/11

09:55-20:35

2 stops27h 40m

$1,730

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

14:10-08:35

2 stops25h 25m

Sydney Kingsford Smith

Wed 3/3

09:55-18:54

2 stops25h 59m

$1,730

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

14:10-10:35

2 stops27h 25m

Sydney Kingsford Smith

Wed 3/3

09:55-18:54

2 stops25h 59m

$1,731

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 1/12

18:45-09:00

1 stop21h 15m

Sydney Kingsford Smith

Sun 13/12

11:15-20:04

1 stop25h 49m

$2,199

Fastest return journey

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 30/12

17:59-09:00

1 stop22h 01m

Sydney Kingsford Smith

Tue 2/2

11:15-16:51

1 stop22h 36m

$2,220

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 Chicago to Sydney

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

Stopovers

What is the typical price of a round-trip flight between Chicago and Sydney?

Prices are currently low for flights on this route.

Typical prices usually range from $1,797 to $2,539.
The lowest price recently found on this route was $1,727.

What is the cheapest month to fly to Sydney?

The month of June is, on average, the cheapest month to fly to Sydney from Chicago, with most prices found around $1,814. If you aren’t able to travel to Sydney during the month of June, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,862.

How far in advance should I book a flight from Chicago to Sydney?

You are more likely to see cheaper flights to Sydney from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,008 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Chicago for as low as $1,642 on momondo.

How have Chicago to Sydney flight prices changed over time?

As of August 2026, prices for Chicago to Sydney flights are approximately 129% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Chicago to Sydney (CHI to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Sydney

Fastest flight time	24h 24m
Direct flights	None

The fastest flight from Chicago to Sydney takes 24h 24m

There are no direct flights from Chicago to Sydney. There are no popular flight routes from Chicago to Sydney.

Search flight deals

Frequently asked questions about flying from Chicago to Sydney

How far is Chicago to Sydney Kingsford Smith by plane?
Chicago and Sydney Kingsford Smith are 14866.2 km apart from one another. A reasonable flight in good conditions will take 24h 24m.
When did momondo last update prices for flights from Chicago to Sydney Kingsford Smith Airport?
Prices for flights from Chicago to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from Chicago to Sydney Kingsford Smith Airport?
As of August 2026, there is 1 operator available to choose from for flights from Chicago to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Chicago to Sydney Kingsford Smith Airport?
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 stopovers 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 Chicago to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport 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 Chicago to Sydney

Compare and see reviews for airlines that fly from Chicago to Sydney with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $2,077	Free cancellation	Rating 7.5 1,082 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Randwick

Cronulla

Bondi Beach

Charlestown

Swansea

Newport

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Sydney?

It is quick and easy to find Chicago to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Chicago to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Chicago with this policy.

How can momondo help me find flights from Chicago to Sydney?

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 Sydney from Chicago.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Chicago and alert you when they change.