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

Delta 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 March 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.

$614 Cheap Flights from Chicago to Sydney in 2026

Q: 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 $1,380 to $2,171. The lowest price recently found on this route was $1,373.

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Find the cheapest flights from Chicago to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

05:15 - 12:05

ORD

SYD

39h 50m

2 stops

13:15 - 23:27

SYD

ORD

25h 12m

2 stops

$1,373Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

14:00 - 11:50

ORD

SYD

30h 50m

2 stops

06:00 - 05:35

SYD

ORD

38h 35m

2 stops

$1,442Multiple Airlines

Thu, 16 Apr - Thu, 23 Apr

12:44 - 11:50

ORD

SYD

32h 06m

2 stops

13:15 - 05:23

SYD

ORD

31h 08m

2 stops

$1,466Multiple Airlines

Wed, 27 May - Mon, 1 Jun

07:30 - 08:45

ORD

SYD

34h 15m

2 stops

11:55 - 23:27

SYD

ORD

26h 32m

2 stops

$1,476Multiple Airlines

Tue, 21 Apr - Tue, 28 Apr

05:15 - 11:50

ORD

SYD

39h 35m

2 stops

13:15 - 05:35

SYD

ORD

31h 20m

2 stops

$1,483Multiple Airlines

Sun, 26 Apr - Sat, 9 May

14:00 - 11:50

ORD

SYD

30h 50m

2 stops

13:15 - 05:35

SYD

ORD

31h 20m

2 stops

$1,486Multiple Airlines

Sun, 26 Apr - Sun, 10 May

07:30 - 11:50

ORD

SYD

37h 20m

2 stops

13:20 - 05:35

SYD

ORD

31h 15m

2 stops

$1,525Multiple Airlines

Wed, 22 Apr - Wed, 6 May

14:00 - 11:50

ORD

SYD

30h 50m

2 stops

13:15 - 05:35

SYD

ORD

31h 20m

2 stops

$1,528Multiple Airlines

Sun, 26 Apr - Sun, 10 May

14:12 - 06:50

MDW

SYD

25h 38m

2 stops

09:15 - 17:56

SYD

MDW

23h 41m

2 stops

$2,115Delta

Sun, 26 Apr - Sun, 10 May

12:52 - 06:50

MDW

SYD

26h 58m

2 stops

09:15 - 17:56

SYD

MDW

23h 41m

2 stops

$2,130Delta

Sun, 26 Apr - Sun, 10 May

Air Canada flights from Chicago to Sydney

Our best Air Canada deals on Chicago to Sydney flight tickets

Air Canada

26 Apr

ORD15:40Chicago O'Hare Intl

24h 40m

1 stop

SYD07:20Sydney Kingsford Smith

10 May

SYD09:20Sydney Kingsford Smith

20h 25m

1 stop

ORD14:45Chicago O'Hare Intl

$1,571

Air Canada

26 Apr

ORD08:42Chicago O'Hare Intl

31h 38m

2 stops

SYD07:20Sydney Kingsford Smith

10 May

SYD09:20Sydney Kingsford Smith

25h 48m

2 stops

ORD20:08Chicago O'Hare Intl

$1,575

Air Canada

26 Apr

ORD08:42Chicago O'Hare Intl

31h 38m

2 stops

SYD07:20Sydney Kingsford Smith

10 May

SYD09:20Sydney Kingsford Smith

20h 25m

1 stop

ORD14:45Chicago O'Hare Intl

$1,639

ANA flights from Chicago to Sydney

Our best ANA deals on Chicago to Sydney flight tickets

ANA

5 Aug

ORD17:45Chicago O'Hare Intl

24h 40m

1 stop

SYD09:25Sydney Kingsford Smith

30 Aug

SYD11:45Sydney Kingsford Smith

32h 00m

2 stops

ORD04:45Chicago O'Hare Intl

$1,695

ANA

5 Aug

ORD17:45Chicago O'Hare Intl

24h 40m

1 stop

SYD09:25Sydney Kingsford Smith

30 Aug

SYD11:45Sydney Kingsford Smith

32h 00m

2 stops

ORD04:45Chicago O'Hare Intl

$1,696

ANA

5 Aug

ORD17:45Chicago O'Hare Intl

34h 25m

1 stop

SYD19:10Sydney Kingsford Smith

30 Aug

SYD11:45Sydney Kingsford Smith

32h 00m

2 stops

ORD04:45Chicago O'Hare Intl

$1,697

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 20/4

05:15-12:05

2 stops39h 50m

Sydney Kingsford Smith

Mon 27/4

13:15-23:27

2 stops25h 12m

$1,373

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 16/4

14:00-11:50

2 stops30h 50m

Sydney Kingsford Smith

Thu 23/4

06:00-05:35

2 stops38h 35m

$1,442

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 27/5

12:44-11:50

2 stops32h 06m

Sydney Kingsford Smith

Mon 1/6

13:15-05:23

2 stops31h 08m

$1,466

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 21/4

07:30-08:45

2 stops34h 15m

Sydney Kingsford Smith

Tue 28/4

11:55-23:27

2 stops26h 32m

$1,476

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 26/4

05:15-11:50

2 stops39h 35m

Sydney Kingsford Smith

Sat 9/5

13:15-05:35

2 stops31h 20m

$1,483

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 26/4

14:00-11:50

2 stops30h 50m

Sydney Kingsford Smith

Sun 10/5

13:15-05:35

2 stops31h 20m

$1,486

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 22/4

07:30-11:50

2 stops37h 20m

Sydney Kingsford Smith

Wed 6/5

13:20-05:35

2 stops31h 15m

$1,525

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 26/4

14:00-11:50

2 stops30h 50m

Sydney Kingsford Smith

Sun 10/5

13:15-05:35

2 stops31h 20m

$1,528

Fastest return journey

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sun 26/4

14:12-06:50

2 stops25h 38m

Sydney Kingsford Smith

Sun 10/5

09:15-17:56

2 stops23h 41m

$2,115

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sun 26/4

12:52-06:50

2 stops26h 58m

Sydney Kingsford Smith

Sun 10/5

09:15-17:56

2 stops23h 41m

$2,130

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?

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 $1,633. If you aren’t able to travel to Sydney during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,926.

How far in advance should I book a flight 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 $1,903 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 $1,504 on momondo.

Can stopping save me money on Chicago to Sydney flights?

You could potentially save up to 20% 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 March 2026, prices for Chicago to Sydney flights are approximately 91% 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

Fastest flight time	24h 56m
Direct flights	None

The fastest flight from Chicago to Sydney takes 24h 56m

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

Search flight deals

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 56m.
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 March 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.
What is the most popular airline from Chicago to Sydney?
momondo data reveals that the most frequently booked airline on the route from Chicago to Sydney is Qantas Airways, representing 100% of all bookings.

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 $1,923	Free cancellation	Rating 7.5 1,002 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Leura

Coogee

Bondi Beach

Cronulla

Randwick

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.