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

Dallas (DFW) has the shortest average layover time for this route: 1h 39m.

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

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 20h 55m.

What airlines fly to Sydney?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Sydney from Chicago according to our data. Qantas Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 9 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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

Los Angeles (LAX) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Vancouver (YVR) offer the lowest average round-trip price of $1,229.

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 October 2026, there are 9 operators 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

$615 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

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12:38 pm - 8:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 52m2 stops Minneapolis St Paul Los Angeles

10:40 am - 8:55 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 15m1 stop Los Angeles

$1,304Delta

Sat, Nov 14 - Fri, Nov 27

6:20 am - 8:30 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 10m2 stops Minneapolis St Paul Los Angeles

10:40 am - 8:49 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

27h 09m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,304Delta

Sat, Nov 14 - Fri, Nov 27

8:15 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 20m2 stops Los Angeles Auckland Intl

9:55 am - 6:56 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 01m2 stops Auckland Intl Los Angeles

$1,306Air New Zealand

Sun, Dec 6 - Sun, Dec 13

7:05 am - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 30m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

11:20 am - 7:52 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 32m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,315Air Canada

Wed, Feb 3 - Sun, Feb 21

7:05 am - 9:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

33h 30m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

11:20 am - 7:52 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

25h 32m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,315Air Canada

Mon, Feb 1 - Wed, Mar 3

8:50 pm - 6:25 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

40h 35m1 stop Los Angeles

1:00 pm - 2:18 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

41h 18m1 stop Dallas/Fort Worth

$1,320Qantas Airways

Sat, Mar 13 - Sun, Mar 28

9:35 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

42h 00m2 stops Houston George Bush Intcntl Auckland Intl

7:25 pm - 6:56 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

40h 31m2 stops Auckland Intl Los Angeles

$1,320Air New Zealand

Sun, Nov 15 - Sat, Dec 12

5:59 pm - 6:55 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 56m1 stop Dallas/Fort Worth

9:50 pm - 2:12 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 22m2 stops Brisbane Dallas/Fort Worth

$1,322Qantas Airways

Tue, Dec 1 - Tue, Dec 8

11:45 pm - 10:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 00m1 stop Manila Ninoy Aquino Intl

11:35 am - 5:55 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

45h 20m1 stop Manila Ninoy Aquino Intl

$1,336Philippine Airlines

Fri, Apr 2 - Sun, May 2

11:45 pm - 10:45 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 00m1 stop Manila Ninoy Aquino Intl

11:35 am - 5:55 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

45h 20m1 stop Manila Ninoy Aquino Intl

$1,336Philippine Airlines

Fri, Apr 2 - Tue, May 4

Cheap last minute flights

Enter your travel dates to find the best prices.

3:50 pm - 10:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 45m2 stops Los Angeles Auckland Intl

9:55 am - 10:58 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

30h 03m2 stops Auckland Intl Los Angeles

$1,326Air New Zealand

Fri, Oct 23 - Wed, Nov 4

1:57 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 38m2 stops Toronto Pearson Intl Vancouver Intl

11:20 am - 8:00 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

37h 40m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,353Air Canada

Mon, Oct 26 - Sun, Nov 8

3:30 pm - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

25h 05m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 17m1 stop Vancouver Intl

$1,371Air Canada

Mon, Oct 26 - Sun, Nov 8

5:16 pm - 8:05 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

46h 49m2 stops Dallas/Fort Worth Melbourne

11:10 am - 3:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

20h 49m1 stop Los Angeles

$1,413Qantas Airways

Fri, Oct 23 - Fri, Oct 30

6:25 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 10m2 stops Houston George Bush Intcntl Auckland Intl

2:05 pm - 10:00 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 55m2 stops Auckland Intl Los Angeles

$1,421Air New Zealand

Fri, Oct 23 - Fri, Oct 30

6:30 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 05m3 stops Denver Intl Los Angeles Auckland Intl

7:30 am - 12:21 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

33h 51m3 stops Auckland Intl Los Angeles Denver Intl

$1,462Multiple Airlines

Mon, Oct 26 - Sun, Nov 8

6:30 am - 8:35 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

34h 05m3 stops Denver Intl Los Angeles Vancouver Intl

11:20 am - 12:21 amSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

30h 01m3 stops Vancouver Intl Los Angeles Denver Intl

$1,463Multiple Airlines

Sat, Oct 24 - Sun, Nov 8

2:40 pm - 8:40 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

26h 00m1 stop Los Angeles

11:20 am - 5:00 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

46h 40m1 stop Los Angeles

$2,043United Airlines

Mon, Oct 26 - Sun, Nov 8

5:53 pm - 9:00 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

23h 07m1 stop Los Angeles

11:10 am - 5:59 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

23h 49m1 stop Los Angeles

$5,761Qantas Airways

Mon, Oct 26 - Tue, Nov 10

9:40 pm - 9:20 amORD Chicago O'Hare Intl-SYD Sydney Kingsford Smith

43h 40m1 stop San Francisco

9:15 am - 7:55 pmSYD Sydney Kingsford Smith-ORD Chicago O'Hare Intl

26h 40m1 stop Houston George Bush Intcntl

$7,875United Airlines

Fri, Oct 23 - Fri, Oct 30

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Qantas Airways flights from Chicago to Sydney

Our best Qantas Airways deals on Chicago to Sydney flight tickets

Qantas Airways

Dec 1

ORD5:09 pmChicago O'Hare Intl

22h 51m

1 stop

SYD9:00 amSydney Kingsford Smith

Dec 8

SYD11:10 amSydney Kingsford Smith

23h 50m

1 stop

ORD6:00 pmChicago O'Hare Intl

$1,327

Qantas Airways

Mar 12

ORD12:00 pmChicago O'Hare Intl

25h 25m

1 stop

SYD6:25 amSydney Kingsford Smith

Apr 1

SYD10:20 amSydney Kingsford Smith

21h 32m

1 stop

ORD3:52 pmChicago O'Hare Intl

$1,330

Qantas Airways

Mar 12

ORD6:45 pmChicago O'Hare Intl

21h 15m

1 stop

SYD9:00 amSydney Kingsford Smith

Apr 3

SYD10:20 amSydney Kingsford Smith

22h 37m

1 stop

ORD4:57 pmChicago O'Hare Intl

$1,348

Philippine Airlines flights from Chicago to Sydney

Our best Philippine Airlines deals on Chicago to Sydney flight tickets

Philippine Airlines

Apr 2

ORD11:45 pmChicago O'Hare Intl

43h 00m

1 stop

SYD10:45 amSydney Kingsford Smith

May 2

SYD11:35 amSydney Kingsford Smith

45h 20m

1 stop

ORD5:55 pmChicago O'Hare Intl

$1,336

Philippine Airlines

Apr 2

ORD11:45 pmChicago O'Hare Intl

43h 00m

1 stop

SYD10:45 amSydney Kingsford Smith

Apr 29

SYD11:35 amSydney Kingsford Smith

45h 20m

1 stop

ORD5:55 pmChicago O'Hare Intl

$1,366

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 11/14

12:38 pm-8:30 am

2 stops26h 52m

Sydney Kingsford Smith

Fri 11/27

10:40 am-8:55 pm

1 stop27h 15m

$1,304

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 11/14

6:20 am-8:30 am

2 stops33h 10m

Sydney Kingsford Smith

Fri 11/27

10:40 am-8:49 pm

2 stops27h 09m

$1,304

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 12/6

8:15 pm-8:35 am

2 stops43h 20m

Sydney Kingsford Smith

Sun 12/13

9:55 am-6:56 pm

2 stops26h 01m

$1,306

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Wed 2/3

7:05 am-9:35 am

3 stops33h 30m

Sydney Kingsford Smith

Sun 2/21

11:20 am-7:52 pm

2 stops25h 32m

$1,315

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Mon 2/1

7:05 am-9:35 am

3 stops33h 30m

Sydney Kingsford Smith

Wed 3/3

11:20 am-7:52 pm

2 stops25h 32m

$1,315

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sat 3/13

8:50 pm-6:25 am

1 stop40h 35m

Sydney Kingsford Smith

Sun 3/28

1:00 pm-2:18 pm

1 stop41h 18m

$1,320

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Sun 11/15

9:35 pm-8:35 am

2 stops42h 00m

Sydney Kingsford Smith

Sat 12/12

7:25 pm-6:56 pm

2 stops40h 31m

$1,320

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Tue 12/1

5:59 pm-6:55 am

1 stop43h 56m

Sydney Kingsford Smith

Tue 12/8

9:50 pm-2:12 pm

2 stops33h 22m

$1,322

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 4/2

11:45 pm-10:45 am

1 stop43h 00m

Sydney Kingsford Smith

Sun 5/2

11:35 am-5:55 pm

1 stop45h 20m

$1,336

ChicagoSydney

ORD Chicago O'Hare Intl - SYD Sydney Kingsford Smith

ORDSYD

Chicago O'Hare Intl

Fri 4/2

11:45 pm-10:45 am

1 stop43h 00m

Sydney Kingsford Smith

Tue 5/4

11:35 am-5:55 pm

1 stop45h 20m

$1,336

Flights are sorted by cheapest round-trip 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

Layovers

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 $1,334 to $1,700.
The lowest price recently found on this route was $1,304.

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from Chicago to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,231. If you are unable to visit Sydney during the month of February, then departing from Chicago during the month June is also very affordable. Most momondo users find prices during this month for around $1,278.

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 $1,424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Chicago for as low as $1,078 on momondo.

Can stopping save me money on Chicago to Sydney flights?

You could potentially save up to 15% 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 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 round-trip 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	$615
Fastest flight time	21h 15m
Direct flights	None

The best one-way flight to Sydney from Chicago in the past 72 hours is $615. The best round-trip flight deal from Chicago to Sydney found on momondo in the last 72 hours is $1,304.

The fastest flight from Chicago to Sydney takes 21h 15m

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?
There are 9237.5 mi between Chicago and Sydney Kingsford Smith. By plane, this route typically takes 21h 15m.
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 October 2026, there are 9 operators 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.
What is the most popular airline from Chicago to Sydney?
Based on momondo bookings for flights between Chicago and Sydney, the leading airline is Qantas Airways, making up 42% of the total bookings. Other popular airlines include United Airlines with 17%, Air Canada with 15%, and American Airlines with 11%.

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
Delta	PriceFrom $237	Free Cancellation	Rating 7.8 8,669 reviews	Search Delta flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.0 260 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,115 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.0 12,189 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.3 10,416 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,117	Free Cancellation	Rating 7.1 11,795 reviews	Search Air Canada flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,330 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,294	Free Cancellation	Rating 8.0 675 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,382	Free Cancellation	Rating 7.3 3,708 reviews	Search Qatar Airways flights

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Cronulla

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Terrigal

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Sydney for 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 for Chicago to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Chicago to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Chicago to Sydney from $615

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 12/2. 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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Qantas Airways flights from Chicago to Sydney

Our best Qantas Airways deals on Chicago to Sydney flight tickets

Philippine Airlines flights from Chicago to Sydney

Our best Philippine Airlines deals on Chicago to Sydney flight tickets

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Use the filters below to find and compare flights from Chicago to Sydney that are best for you.

See travel insights to Sydney from

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?

Can stopping save me money on Chicago to Sydney flights?

How have Chicago to Sydney flight prices changed over time?

What airlines fly to Sydney?

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

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

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

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

When to book flights from Chicago to Sydney

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Chicago to Sydney

Best airlines flying from Chicago to Sydney

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

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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