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 are refreshed on a daily basis.

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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 required travel and health documents for your Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 58,748 Cheap Flights from Chicago to Sydney in 2026/27

Find the cheapest flights from Chicago to Sydney

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

16:30 - 08:30ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

23h 00m1 stop Los Angeles

10:40 - 20:17SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 37m2 stops Los Angeles Detroit Metropolitan Wayne County

₹ 124,257Delta

Sat, 14 Nov - Fri, 27 Nov

20:50 - 09:45ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

45h 55m2 stops Los Angeles Manila Ninoy Aquino Intl

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

45h 20m1 stop Manila Ninoy Aquino Intl

₹ 125,494Multiple Airlines

Sat, 3 Apr - Sun, 18 Apr

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

22h 01m1 stop Los Angeles

11:20 - 16:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

22h 39m1 stop Los Angeles

₹ 127,970Qantas Airways

Sun, 3 Jan - Mon, 1 Feb

17:15 - 09:00ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

22h 45m1 stop Los Angeles

11:10 - 17:29SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 19m1 stop Los Angeles

₹ 132,731Qantas Airways

Sun, 15 Nov - Sat, 12 Dec

18:50 - 22:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 30m2 stops Doha Hamad Intl Adelaide

15:50 - 14:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

39h 40m1 stop Doha Hamad Intl

₹ 134,064Qatar Airways

Wed, 10 Feb - Mon, 22 Feb

19:50 - 22:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 35m2 stops Doha Hamad Intl Brisbane

16:50 - 15:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

38h 15m1 stop Doha Hamad Intl

₹ 134,826Qatar Airways

Sun, 14 Mar - Mon, 29 Mar

18:50 - 22:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 35m2 stops Doha Hamad Intl Brisbane

15:50 - 14:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

39h 40m1 stop Doha Hamad Intl

₹ 134,921Qatar Airways

Tue, 2 Feb - Thu, 18 Feb

19:20 - 17:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 45m1 stop Doha Hamad Intl

16:45 - 15:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

37h 20m2 stops Adelaide Doha Hamad Intl

₹ 135,206Qatar Airways

Thu, 29 Apr - Mon, 10 May

19:20 - 17:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 45m1 stop Doha Hamad Intl

16:45 - 15:05SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

37h 20m2 stops Adelaide Doha Hamad Intl

₹ 135,302Qatar Airways

Thu, 29 Apr - Mon, 10 May

18:50 - 18:20ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

30h 30m1 stop Doha Hamad Intl

19:30 - 14:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

36h 00m2 stops Brisbane Doha Hamad Intl

₹ 135,397Qatar Airways

Thu, 4 Feb - Mon, 15 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

05:30 - 09:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

35h 20m2 stops Los Angeles Manila Ninoy Aquino Intl

11:30 - 05:02SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

34h 32m2 stops Manila Ninoy Aquino Intl Los Angeles

₹ 143,014Multiple Airlines

Sun, 1 Nov - Sun, 15 Nov

21:15 - 19:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

53h 10m2 stops Istanbul Singapore Changi

21:35 - 10:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

53h 25m2 stops Singapore Changi Istanbul

₹ 145,299Turkish Airlines

Tue, 3 Nov - Sat, 26 Dec

21:15 - 19:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

53h 10m2 stops Istanbul Singapore Changi

21:35 - 10:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

53h 25m2 stops Singapore Changi Istanbul

₹ 149,965Turkish Airlines

Tue, 3 Nov - Sun, 27 Dec

12:45 - 19:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

37h 40m2 stops Istanbul Singapore Changi

21:35 - 10:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

53h 25m2 stops Singapore Changi Istanbul

₹ 154,250Turkish Airlines

Wed, 4 Nov - Tue, 29 Dec

09:30 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 55m3 stops Seattle/Tacoma Intl San Jose Los Angeles

11:15 - 23:59SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 44m2 stops Los Angeles Seattle/Tacoma Intl

₹ 155,773Alaska Airlines

Tue, 3 Nov - Tue, 10 Nov

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

31h 25m2 stops Seattle/Tacoma Intl Los Angeles

11:15 - 23:49SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 34m3 stops Los Angeles San Jose San Diego

₹ 155,963Alaska Airlines

Sat, 31 Oct - Mon, 16 Nov

21:15 - 19:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

53h 10m2 stops Istanbul Singapore Changi

21:35 - 10:00SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

53h 25m2 stops Singapore Changi Istanbul

₹ 157,106Turkish Airlines

Tue, 3 Nov - Tue, 29 Dec

09:30 - 06:25ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

27h 55m3 stops Seattle/Tacoma Intl San Jose Los Angeles

11:15 - 23:49SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

29h 34m3 stops Los Angeles San Jose San Diego

₹ 157,773Alaska Airlines

Wed, 4 Nov - Sun, 15 Nov

18:50 - 06:50ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 00m1 stop Doha Hamad Intl

19:00 - 14:30SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

36h 30m2 stops Brisbane Doha Hamad Intl

₹ 160,819Qatar Airways

Mon, 2 Nov - Mon, 16 Nov

15:00 - 09:05ORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Los Angeles

11:50 - 14:50SYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 00m1 stop San Francisco

₹ 161,962United Airlines

Sun, 1 Nov - Mon, 28 Dec

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Qatar Airways flights from Chicago to Sydney

Our best Qatar Airways deals on Chicago to Sydney flight tickets

Qatar Airways

10 Feb

ORD18:50Chicago O'Hare Intl

34h 30m

2 stops

SYD22:20Sydney Kingsford Smith

22 Feb

SYD15:50Sydney Kingsford Smith

39h 40m

1 stop

ORD14:30Chicago O'Hare Intl

₹ 134,064

Qatar Airways

14 Mar

ORD19:50Chicago O'Hare Intl

34h 35m

2 stops

SYD22:25Sydney Kingsford Smith

29 Mar

SYD16:50Sydney Kingsford Smith

38h 15m

1 stop

ORD15:05Chicago O'Hare Intl

₹ 134,826

Qatar Airways

2 Feb

ORD18:50Chicago O'Hare Intl

34h 35m

2 stops

SYD22:25Sydney Kingsford Smith

18 Feb

SYD15:50Sydney Kingsford Smith

39h 40m

1 stop

ORD14:30Chicago O'Hare Intl

₹ 134,921

Turkish Airlines flights from Chicago to Sydney

Our best Turkish Airlines deals on Chicago to Sydney flight tickets

Turkish Airlines

30 Dec

ORD11:45Chicago O'Hare Intl

62h 40m

2 stops

SYD19:25Sydney Kingsford Smith

19 Feb

SYD21:35Sydney Kingsford Smith

37h 45m

2 stops

ORD18:20Chicago O'Hare Intl

₹ 138,539

Turkish Airlines

30 Dec

ORD20:15Chicago O'Hare Intl

54h 10m

2 stops

SYD19:25Sydney Kingsford Smith

15 Jan

SYD21:35Sydney Kingsford Smith

53h 25m

2 stops

ORD10:00Chicago O'Hare Intl

₹ 140,919

Turkish Airlines

1 Dec

ORD20:15Chicago O'Hare Intl

54h 10m

2 stops

SYD19:25Sydney Kingsford Smith

24 Dec

SYD21:35Sydney Kingsford Smith

37h 45m

2 stops

ORD18:20Chicago O'Hare Intl

₹ 141,395

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 14/11

16:30-08:30

1 stop23h 00m

Sydney Kingsford Smith

Fri 27/11

10:40-20:17

2 stops26h 37m

₹ 124,257

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 3/4

20:50-09:45

2 stops45h 55m

Sydney Kingsford Smith

Sun 18/4

11:35-17:55

1 stop45h 20m

₹ 125,494

Fastest return journey

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 3/1

17:59-09:00

1 stop22h 01m

Sydney Kingsford Smith

Mon 1/2

11:20-16:59

1 stop22h 39m

₹ 127,970

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 15/11

17:15-09:00

1 stop22h 45m

Sydney Kingsford Smith

Sat 12/12

11:10-17:29

1 stop23h 19m

₹ 132,731

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 10/2

18:50-22:20

2 stops34h 30m

Sydney Kingsford Smith

Mon 22/2

15:50-14:30

1 stop39h 40m

₹ 134,064

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 14/3

19:50-22:25

2 stops34h 35m

Sydney Kingsford Smith

Mon 29/3

16:50-15:05

1 stop38h 15m

₹ 134,826

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 2/2

18:50-22:25

2 stops34h 35m

Sydney Kingsford Smith

Thu 18/2

15:50-14:30

1 stop39h 40m

₹ 134,921

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Thu 29/4

19:20-17:05

1 stop30h 45m

Sydney Kingsford Smith

Mon 10/5

16:45-15:05

2 stops37h 20m

₹ 135,206

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Thu 29/4

19:20-17:05

1 stop30h 45m

Sydney Kingsford Smith

Mon 10/5

16:45-15:05

2 stops37h 20m

₹ 135,302

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Thu 4/2

18:50-18:20

1 stop30h 30m

Sydney Kingsford Smith

Mon 15/2

19:30-14:30

2 stops36h 00m

₹ 135,397

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

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 ₹ 128,351 to ₹ 153,202.
The lowest price recently found on this route was ₹ 124,257.

What is the cheapest month to fly to Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Chicago, with most prices found around ₹ 117,306. If you aren’t able to travel during the month of February, then book flights to Sydney from Chicago during January instead. Flights to Sydney in January, while not as cheap as those in February, still average around ₹ 117,877.

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 ₹ 140,388 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 ₹ 102,928 on momondo.

How have Chicago to Sydney flight prices changed over time?

As of October 2026, prices for Chicago to Sydney flights are approximately 11% cheaper 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	₹ 58,748
Direct flights	None

The best one-way flight to Sydney from Chicago in the past 72 hours is ₹ 58,748. The best return flight deal from Chicago to Sydney found on momondo in the last 72 hours is ₹ 124,257.

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?
Sydney Kingsford Smith is 14866.2 km away from Chicago.
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 are refreshed on a daily basis.
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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 required travel and health documents for your Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Parramatta

Cronulla

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Sydney . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Chicago to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Sydney.

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

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

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Cheap flights from Chicago to Sydney from ₹ 58,748

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Sydney departing on 23/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qatar Airways flights from Chicago to Sydney

Our best Qatar Airways deals on Chicago to Sydney flight tickets

Turkish Airlines flights from Chicago to Sydney

Our best Turkish Airlines deals on Chicago to Sydney flight tickets

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How to get the cheapest flight ticket from Chicago to Sydney

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

What is the cheapest month to fly to Sydney?

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

How have Chicago to Sydney flight prices changed over time?

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

When to book flights from Chicago to Sydney

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

Best price found

Direct flights

Frequently asked questions about flying from Chicago to Sydney

Travelling to a place near Sydney?

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