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

Alaska Airlines, Turkish Airlines, 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: 50% of momondo users choosing one-stop flights on this route connected there.

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.

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

Flights via Nadi (NAN) offer the lowest average return price of $1,035.

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.

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 July 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

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 $2,005 to $2,640. The lowest price recently found on this route was $1,601.

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.

09:20 - 11:50

ORD

SYD

35h 30m

3 stops

13:15 - 06:17

SYD

ORD

32h 02m

2 stops

$1,601Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

11:45 - 22:25

MDW

SYD

43h 40m

3 stops

13:15 - 10:55

SYD

MDW

36h 40m

3 stops

$1,613Multiple Airlines

Sat, 29 Aug - Sat, 5 Sep

11:45 - 22:25

MDW

SYD

43h 40m

3 stops

13:15 - 10:55

SYD

MDW

36h 40m

3 stops

$1,624Multiple Airlines

Sat, 22 Aug - Sat, 5 Sep

06:05 - 11:50

MDW

SYD

38h 45m

3 stops

13:15 - 10:55

SYD

MDW

36h 40m

3 stops

$1,627Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

13:59 - 22:25

ORD

SYD

41h 26m

3 stops

13:15 - 05:59

SYD

ORD

31h 44m

2 stops

$1,637Multiple Airlines

Sat, 22 Aug - Sat, 5 Sep

13:59 - 22:25

ORD

SYD

41h 26m

3 stops

13:15 - 05:59

SYD

ORD

31h 44m

2 stops

$1,649Multiple Airlines

Sat, 29 Aug - Sat, 5 Sep

07:29 - 11:50

ORD

SYD

37h 21m

3 stops

13:15 - 06:17

SYD

ORD

32h 02m

2 stops

$1,686Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

09:20 - 11:50

ORD

SYD

35h 30m

3 stops

06:15 - 06:17

SYD

ORD

39h 02m

2 stops

$1,687Multiple Airlines

Wed, 19 Aug - Tue, 25 Aug

06:05 - 11:50

MDW

SYD

38h 45m

3 stops

06:15 - 10:55

SYD

MDW

43h 40m

3 stops

$1,722Multiple Airlines

Wed, 19 Aug - Tue, 25 Aug

17:45 - 09:25

ORD

SYD

24h 40m

1 stop

11:45 - 08:40

SYD

ORD

35h 55m

1 stop

$1,809ANA

Wed, 9 Sep - Wed, 16 Sep

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ANA flights from Chicago to Sydney

Our best ANA deals on Chicago to Sydney flight tickets

ANA

9 Sept

ORD17:45Chicago O'Hare Intl

24h 40m

1 stop

SYD09:25Sydney Kingsford Smith

16 Sept

SYD11:45Sydney Kingsford Smith

35h 55m

1 stop

ORD08:40Chicago O'Hare Intl

$1,809

ANA

9 Sept

ORD07:00Chicago O'Hare Intl

35h 25m

2 stops

SYD09:25Sydney Kingsford Smith

16 Sept

SYD11:45Sydney Kingsford Smith

35h 55m

1 stop

ORD08:40Chicago O'Hare Intl

$1,813

ANA

6 Sept

ORD17:45Chicago O'Hare Intl

34h 25m

1 stop

SYD19:10Sydney Kingsford Smith

16 Sept

SYD11:45Sydney Kingsford Smith

35h 55m

1 stop

ORD08:40Chicago O'Hare Intl

$1,815

Delta flights from Chicago to Sydney

Our best Delta deals on Chicago to Sydney flight tickets

Delta

14 Oct

MDW13:28Chicago Midway

26h 22m

2 stops

SYD07:50Sydney Kingsford Smith

26 Oct

SYD09:40Sydney Kingsford Smith

24h 25m

2 stops

MDW18:05Chicago Midway

$2,307

Delta

14 Oct

MDW13:28Chicago Midway

26h 22m

2 stops

SYD07:50Sydney Kingsford Smith

26 Oct

SYD09:40Sydney Kingsford Smith

24h 25m

2 stops

MDW18:05Chicago Midway

$2,309

Delta

20 Nov

MDW12:30Chicago Midway

27h 00m

2 stops

SYD08:30Sydney Kingsford Smith

27 Nov

SYD10:40Sydney Kingsford Smith

28h 30m

2 stops

MDW22:10Chicago Midway

$2,416

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 18/8

09:20-11:50

3 stops35h 30m

Sydney Kingsford Smith

Tue 25/8

13:15-06:17

2 stops32h 02m

$1,601

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sat 29/8

11:45-22:25

3 stops43h 40m

Sydney Kingsford Smith

Sat 5/9

13:15-10:55

3 stops36h 40m

$1,613

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sat 22/8

11:45-22:25

3 stops43h 40m

Sydney Kingsford Smith

Sat 5/9

13:15-10:55

3 stops36h 40m

$1,624

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Tue 18/8

06:05-11:50

3 stops38h 45m

Sydney Kingsford Smith

Tue 25/8

13:15-10:55

3 stops36h 40m

$1,627

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 22/8

13:59-22:25

3 stops41h 26m

Sydney Kingsford Smith

Sat 5/9

13:15-05:59

2 stops31h 44m

$1,637

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 29/8

13:59-22:25

3 stops41h 26m

Sydney Kingsford Smith

Sat 5/9

13:15-05:59

2 stops31h 44m

$1,649

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 11/8

07:29-11:50

3 stops37h 21m

Sydney Kingsford Smith

Tue 18/8

13:15-06:17

2 stops32h 02m

$1,686

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 19/8

09:20-11:50

3 stops35h 30m

Sydney Kingsford Smith

Tue 25/8

06:15-06:17

2 stops39h 02m

$1,687

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Wed 19/8

06:05-11:50

3 stops38h 45m

Sydney Kingsford Smith

Tue 25/8

06:15-10:55

3 stops43h 40m

$1,722

Fastest return journey

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 9/9

17:45-09:25

1 stop24h 40m

Sydney Kingsford Smith

Wed 16/9

11:45-08:40

1 stop35h 55m

$1,809

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 February is, on average, the cheapest month to fly to Sydney from Chicago, with most prices found around $1,835. If you aren’t able to travel to Sydney during the month of February, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,843.

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 $2,035 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 $1,697 on momondo.

How have Chicago to Sydney flight prices changed over time?

As of July 2026, prices for Chicago to Sydney flights are approximately 24% 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	20h 57m
Direct flights	None

The fastest flight from Chicago to Sydney takes 20h 57m

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 20h 57m.
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 July 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 $2,105	Free cancellation	Rating 7.5 1,062 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Manly

Coogee

Lithgow

Leura

Cronulla

Bondi Beach

Randwick

Charlestown

Swansea

Newport

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.