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

Los Angeles (LAX) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Nadi (NAN) offer the lowest average return price of $1,048.

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

Los Angeles (LAX) has the shortest average stopover time for this route: 1h 50m.

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.

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

Alaska Airlines is the most popular carrier operating from Chicago to Sydney Kingsford Smith

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 November 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.

$872 Cheap Flights from Chicago to Sydney in 2026/27

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.

17:58 - 10:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

47h 37m2 stops Houston George Bush Intcntl Auckland Intl

11:50 - 18:49SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 59m2 stops Auckland Intl Los Angeles

$1,897Air New Zealand

Sat, 6 Feb - Wed, 17 Feb

20:21 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 14m2 stops Houston George Bush Intcntl Auckland Intl

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

23h 17m2 stops Auckland Intl Los Angeles

$1,897Air New Zealand

Sat, 27 Feb - Mon, 8 Mar

20:21 - 10:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 14m2 stops Houston George Bush Intcntl Auckland Intl

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

23h 17m2 stops Auckland Intl Los Angeles

$1,897Air New Zealand

Sat, 20 Feb - Wed, 10 Mar

17:58 - 10:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

47h 37m2 stops Houston George Bush Intcntl Auckland Intl

11:50 - 18:49SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 59m2 stops Auckland Intl Los Angeles

$1,897Air New Zealand

Sat, 30 Jan - Wed, 17 Feb

20:21 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 14m2 stops Houston George Bush Intcntl Auckland Intl

11:50 - 19:56SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 06m2 stops Auckland Intl Houston George Bush Intcntl

$1,897Air New Zealand

Sat, 20 Feb - Tue, 2 Mar

07:00 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 25m2 stops Denver Intl Los Angeles

14:00 - 00:53SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 53m3 stops Nadi Los Angeles Denver Intl

$1,900Multiple Airlines

Tue, 1 Dec - Fri, 4 Dec

05:40 - 12:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

37h 55m2 stops Los Angeles Nadi

14:00 - 15:56SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

41h 56m3 stops Nadi Los Angeles Orlando

$1,906Multiple Airlines

Thu, 11 Mar - Thu, 18 Mar

23:45 - 09:45ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 00m1 stop Manila Ninoy Aquino Intl

11:35 - 17:55SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

45h 20m1 stop Manila Ninoy Aquino Intl

$1,910Philippine Airlines

Fri, 9 Apr - Sun, 18 Apr

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

21h 15m1 stop Los Angeles

14:05 - 17:24SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 19m1 stop Dallas/Fort Worth

$2,325Qantas Airways

Mon, 1 Feb - Wed, 17 Feb

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

21h 15m1 stop Los Angeles

11:15 - 16:58SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 43m1 stop Los Angeles

$2,325Qantas Airways

Mon, 1 Feb - Tue, 16 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

05:30 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 05m2 stops Houston George Bush Intcntl Auckland Intl

19:25 - 20:37SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

42h 12m2 stops Auckland Intl Los Angeles

$1,980Air New Zealand

Mon, 16 Nov - Wed, 25 Nov

21:35 - 21:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

55h 15m2 stops Houston George Bush Intcntl Auckland Intl

09:55 - 22:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 05m2 stops Auckland Intl Los Angeles

$2,102Air New Zealand

Sat, 14 Nov - Fri, 20 Nov

21:35 - 21:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

55h 15m2 stops Houston George Bush Intcntl Auckland Intl

19:25 - 20:37SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

42h 12m2 stops Auckland Intl Los Angeles

$2,160Air New Zealand

Sat, 14 Nov - Fri, 20 Nov

05:30 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 05m2 stops Houston George Bush Intcntl Auckland Intl

11:20 - 17:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 40m1 stop Los Angeles

$2,267Air New Zealand

Mon, 16 Nov - Wed, 25 Nov

07:05 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 20m2 stops Atlanta Hartsfield-Jackson Los Angeles

06:00 - 06:14SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

41h 14m3 stops Melbourne Nadi Los Angeles

$2,300Multiple Airlines

Sat, 14 Nov - Fri, 20 Nov

07:05 - 08:35ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

32h 30m3 stops Atlanta Hartsfield-Jackson Los Angeles Auckland Intl

14:05 - 05:10SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

32h 05m3 stops Auckland Intl Los Angeles Las Vegas Harry Reid Intl

$2,303Multiple Airlines

Sat, 14 Nov - Fri, 20 Nov

06:30 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 55m2 stops Denver Intl Los Angeles

11:10 - 00:53SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

30h 43m2 stops Los Angeles Denver Intl

$2,306Multiple Airlines

Thu, 12 Nov - Thu, 3 Dec

08:42 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

28h 43m1 stop Los Angeles

11:10 - 16:42SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 32m1 stop Los Angeles

$2,396Qantas Airways

Sun, 15 Nov - Mon, 30 Nov

13:24 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 36m1 stop Los Angeles

11:10 - 16:42SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 32m1 stop Los Angeles

$2,426Qantas Airways

Mon, 16 Nov - Wed, 25 Nov

16:39 - 09:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

23h 26m1 stop Los Angeles

19:25 - 20:37SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

42h 12m2 stops Auckland Intl Los Angeles

$2,429Air New Zealand

Sat, 14 Nov - Fri, 20 Nov

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Air New Zealand flights from Chicago to Sydney

Our best Air New Zealand deals on Chicago to Sydney flight tickets

Air New Zealand

20 Feb

ORD20:21Chicago O'Hare Intl

45h 14m

2 stops

SYD10:35Sydney Kingsford Smith

10 Mar

SYD14:05Sydney Kingsford Smith

23h 17m

2 stops

ORD20:22Chicago O'Hare Intl

$1,897

Air New Zealand

1 Feb

ORD14:36Chicago O'Hare Intl

26h 59m

2 stops

SYD10:35Sydney Kingsford Smith

28 Feb

SYD19:25Sydney Kingsford Smith

42h 15m

2 stops

ORD20:40Chicago O'Hare Intl

$1,910

Air New Zealand

17 Feb

ORD12:55Chicago O'Hare Intl

39h 55m

2 stops

SYD21:50Sydney Kingsford Smith

27 Feb

SYD19:25Sydney Kingsford Smith

46h 20m

2 stops

ORD00:45Chicago O'Hare Intl

$1,935

American Airlines flights from Chicago to Sydney

Our best American Airlines deals on Chicago to Sydney flight tickets

American Airlines

2 May

ORD17:25Chicago O'Hare Intl

22h 40m

2 stops

SYD07:05Sydney Kingsford Smith

17 May

SYD10:20Sydney Kingsford Smith

20h 32m

1 stop

ORD15:52Chicago O'Hare Intl

$1,984

American Airlines

15 Nov

ORD10:32Chicago O'Hare Intl

26h 53m

1 stop

SYD06:25Sydney Kingsford Smith

29 Nov

SYD11:10Sydney Kingsford Smith

22h 32m

1 stop

ORD16:42Chicago O'Hare Intl

$2,534

American Airlines

14 Nov

ORD13:24Chicago O'Hare Intl

24h 01m

1 stop

SYD06:25Sydney Kingsford Smith

20 Nov

SYD14:05Sydney Kingsford Smith

27h 15m

1 stop

ORD00:20Chicago O'Hare Intl

$2,606

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

Sat 6/2

17:58-10:35

2 stops47h 37m

Sydney Kingsford Smith

Wed 17/2

11:50-18:49

2 stops23h 59m

$1,897

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 27/2

20:21-08:35

2 stops43h 14m

Sydney Kingsford Smith

Mon 8/3

14:05-20:22

2 stops23h 17m

$1,897

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 20/2

20:21-10:35

2 stops45h 14m

Sydney Kingsford Smith

Wed 10/3

14:05-20:22

2 stops23h 17m

$1,897

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 30/1

17:58-10:35

2 stops47h 37m

Sydney Kingsford Smith

Wed 17/2

11:50-18:49

2 stops23h 59m

$1,897

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 20/2

20:21-08:35

2 stops43h 14m

Sydney Kingsford Smith

Tue 2/3

11:50-19:56

2 stops25h 06m

$1,897

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 1/12

07:00-06:25

2 stops30h 25m

Sydney Kingsford Smith

Fri 4/12

14:00-00:53

3 stops27h 53m

$1,900

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Thu 11/3

05:40-12:35

2 stops37h 55m

Sydney Kingsford Smith

Thu 18/3

14:00-15:56

3 stops41h 56m

$1,906

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 9/4

23:45-09:45

1 stop43h 00m

Sydney Kingsford Smith

Sun 18/4

11:35-17:55

1 stop45h 20m

$1,910

Fastest return journey

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

18:45-09:00

1 stop21h 15m

Sydney Kingsford Smith

Wed 17/2

14:05-17:24

1 stop20h 19m

$2,325

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 1/2

18:45-09:00

1 stop21h 15m

Sydney Kingsford Smith

Tue 16/2

11:15-16:58

1 stop22h 43m

$2,325

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 $1,981 to $2,365.
The lowest price recently found on this route was $1,897.

What is the cheapest month to fly to Sydney?

The month of January is, on average, the cheapest month to fly to Sydney from Chicago, with most prices found around $1,839. If you aren’t able to travel to Sydney during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,871.

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 $2,204 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 $1,630 on momondo.

Can stopping save me money on Chicago to Sydney flights?

You could potentially save up to 17% on your flight if you consider stops on a Chicago to Sydney flight.

How have Chicago to Sydney flight prices changed over time?

As of November 2026, prices for Chicago to Sydney flights are approximately 11% 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

Best price found	$872
Fastest flight time	27h 10m
Direct flights	None

The best one-way flight to Sydney from Chicago in the past 72 hours is $872. The best return flight deal from Chicago to Sydney found on momondo in the last 72 hours is $1,897.

The fastest flight from Chicago to Sydney takes 27h 10m

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 27h 10m.
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 November 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 $2,295	Free cancellation	Rating 7.5 1,123 reviews		Search Qantas Airways flights

Parramatta

Terrigal

Wollongong

Katoomba

Penrith

Coogee

Lithgow

Manly

Randwick

Cronulla

Leura

Bondi Beach

Charlestown

Newport

Swansea

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.