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

ANA and Delta are the most popular carriers operating from Chicago to Sydney Kingsford Smith

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 Vancouver (YVR) offer the lowest average return price of $1,891.

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

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 21h 45m.

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 06m.

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 June 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.

$841 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 $2,155 to $1,612. The lowest price recently found on this route was $1,851.

Discover deals from 900+ travel sites with momondo.

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.

20:00 - 20:15

ORD

SYD

31h 15m

2 stops

21:45 - 07:20

SYD

ORD

26h 35m

1 stop

$1,851ANA

Sat, 7 Nov - Wed, 18 Nov

17:45 - 19:10

ORD

SYD

34h 25m

1 stop

11:45 - 04:45

SYD

ORD

32h 00m

2 stops

$1,853ANA

Wed, 26 Aug - Tue, 1 Sep

17:45 - 09:25

ORD

SYD

24h 40m

1 stop

20:55 - 16:41

SYD

ORD

34h 46m

2 stops

$1,856ANA

Thu, 13 Aug - Sun, 23 Aug

16:25 - 20:15

ORD

SYD

34h 50m

1 stop

12:25 - 15:15

SYD

ORD

43h 50m

2 stops

$1,858ANA

Fri, 6 Nov - Thu, 19 Nov

08:45 - 07:20

ORD

SYD

31h 35m

1 stop

09:20 - 14:36

SYD

ORD

20h 16m

1 stop

$1,862Air Canada

Sun, 21 Jun - Tue, 7 Jul

08:45 - 07:20

ORD

SYD

31h 35m

1 stop

09:20 - 14:36

SYD

ORD

20h 16m

1 stop

$1,870Air Canada

Sun, 21 Jun - Tue, 7 Jul

13:00 - 08:30

MDW

SYD

26h 30m

2 stops

10:40 - 16:50

SYD

MDW

23h 10m

2 stops

$2,076Delta

Mon, 2 Nov - Fri, 20 Nov

11:06 - 07:05

MDW

SYD

28h 59m

2 stops

09:10 - 11:09

SYD

MDW

40h 59m

2 stops

$2,175Multiple Airlines

Fri, 14 Aug - Sun, 30 Aug

13:27 - 06:50

MDW

SYD

26h 23m

2 stops

09:15 - 18:01

SYD

MDW

23h 46m

2 stops

$2,287Delta

Thu, 13 Aug - Sun, 23 Aug

17:46 - 11:50

MDW

SYD

27h 04m

2 stops

12:00 - 17:26

SYD

MDW

20h 26m

1 stop

$2,337Multiple Airlines

Tue, 28 Jul - Sat, 15 Aug

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Delta flights from Chicago to Sydney

Our best Delta deals on Chicago to Sydney flight tickets

Delta

2 Nov

MDW13:00Chicago Midway

26h 30m

2 stops

SYD08:30Sydney Kingsford Smith

20 Nov

SYD10:40Sydney Kingsford Smith

23h 10m

2 stops

MDW16:50Chicago Midway

$2,076

Delta

5 Aug

MDW13:27Chicago Midway

26h 23m

2 stops

SYD06:50Sydney Kingsford Smith

30 Aug

SYD09:15Sydney Kingsford Smith

23h 46m

2 stops

MDW18:01Chicago Midway

$2,289

Delta

14 Oct

MDW13:00Chicago Midway

26h 50m

2 stops

SYD07:50Sydney Kingsford Smith

28 Oct

SYD09:40Sydney Kingsford Smith

23h 10m

2 stops

MDW16:50Chicago Midway

$2,290

Air Canada flights from Chicago to Sydney

Our best Air Canada deals on Chicago to Sydney flight tickets

Air Canada

21 June

ORD08:45Chicago O'Hare Intl

31h 35m

1 stop

SYD07:20Sydney Kingsford Smith

7 July

SYD09:20Sydney Kingsford Smith

20h 16m

1 stop

ORD14:36Chicago O'Hare Intl

$1,862

Air Canada

21 June

ORD08:45Chicago O'Hare Intl

31h 35m

1 stop

SYD07:20Sydney Kingsford Smith

7 July

SYD09:20Sydney Kingsford Smith

20h 16m

1 stop

ORD14:36Chicago O'Hare Intl

$1,870

Air Canada

21 June

ORD14:15Chicago O'Hare Intl

26h 05m

2 stops

SYD07:20Sydney Kingsford Smith

7 July

SYD09:20Sydney Kingsford Smith

20h 16m

1 stop

ORD14:36Chicago O'Hare Intl

$1,872

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 7/11

20:00-20:15

2 stops31h 15m

Sydney Kingsford Smith

Wed 18/11

21:45-07:20

1 stop26h 35m

$1,851

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 26/8

17:45-19:10

1 stop34h 25m

Sydney Kingsford Smith

Tue 1/9

11:45-04:45

2 stops32h 00m

$1,853

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 13/8

17:45-09:25

1 stop24h 40m

Sydney Kingsford Smith

Sun 23/8

20:55-16:41

2 stops34h 46m

$1,856

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 6/11

16:25-20:15

1 stop34h 50m

Sydney Kingsford Smith

Thu 19/11

12:25-15:15

2 stops43h 50m

$1,858

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 21/6

08:45-07:20

1 stop31h 35m

Sydney Kingsford Smith

Tue 7/7

09:20-14:36

1 stop20h 16m

$1,862

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 21/6

08:45-07:20

1 stop31h 35m

Sydney Kingsford Smith

Tue 7/7

09:20-14:36

1 stop20h 16m

$1,870

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Mon 2/11

13:00-08:30

2 stops26h 30m

Sydney Kingsford Smith

Fri 20/11

10:40-16:50

2 stops23h 10m

$2,076

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Fri 14/8

11:06-07:05

2 stops28h 59m

Sydney Kingsford Smith

Sun 30/8

09:10-11:09

2 stops40h 59m

$2,175

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Thu 13/8

13:27-06:50

2 stops26h 23m

Sydney Kingsford Smith

Sun 23/8

09:15-18:01

2 stops23h 46m

$2,287

Fastest return journey

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Tue 28/7

17:46-11:50

2 stops27h 04m

Sydney Kingsford Smith

Sat 15/8

12:00-17:26

1 stop20h 26m

$2,337

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?

What is the cheapest month to fly to Sydney?

The month of August is, on average, the cheapest month to fly to Sydney from Chicago, with most prices found around $196. If you aren’t able to travel to Sydney during the month of August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $201.

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 $1,989 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 $1,588 on momondo.

How have Chicago to Sydney flight prices changed over time?

As of June 2026, prices for Chicago to Sydney flights are approximately 79% 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 40m
Direct flights	None

The fastest flight from Chicago to Sydney takes 24h 40m

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

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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 40m.
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 June 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 $2,084	Free cancellation	Rating 7.5 1,045 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Manly

Lithgow

Coogee

Leura

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.