Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Sydney?

Los Angeles (LAX) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Sydney?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 21h 00m.

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 O'Hare Intl Airport according to our data. Qantas Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 8 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Sydney?

Dallas (DFW) has the shortest average layover time for this route: 1h 37m.

What is the cheapest airline that flies from Chicago O'Hare Intl to Sydney Kingsford Smith?

Etihad Airways, Turkish Airlines, and Alaska Airlines are the most popular carriers operating from Chicago O'Hare Intl to Sydney Kingsford Smith

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Sydney?

Flights via Dallas (DFW) offer the lowest average round-trip price of $1,138.

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport?

The number of operators available for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport is 8 as of July 2026.

How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$617 Cheap Flights from Chicago O'Hare Intl Airport to Sydney in 2026

Q: What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $1,403 to $1,793. The lowest price recently found on this route was $1,146.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:13 pm - 11:50 am

ORD

SYD

47h 37m

2 stops

1:15 pm - 1:20 pm

SYD

ORD

39h 05m

3 stops

$1,146Multiple Airlines

Thu, Aug 13 - Thu, Aug 20

7:29 am - 11:50 am

ORD

SYD

37h 21m

3 stops

1:15 pm - 6:17 am

SYD

ORD

32h 02m

2 stops

$1,181Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

7:15 am - 11:50 am

ORD

SYD

37h 35m

3 stops

1:15 pm - 6:17 am

SYD

ORD

32h 02m

2 stops

$1,207Multiple Airlines

Mon, Jul 27 - Wed, Aug 5

7:29 am - 11:50 am

ORD

SYD

37h 21m

3 stops

1:15 pm - 5:59 am

SYD

ORD

31h 44m

2 stops

$1,213Multiple Airlines

Thu, Aug 13 - Thu, Aug 20

7:29 am - 10:25 pm

ORD

SYD

47h 56m

3 stops

1:15 pm - 6:17 am

SYD

ORD

32h 02m

2 stops

$1,214Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

7:29 am - 11:50 am

ORD

SYD

37h 21m

3 stops

1:15 pm - 5:59 am

SYD

ORD

31h 44m

2 stops

$1,217Multiple Airlines

Sun, Aug 16 - Thu, Aug 27

7:29 am - 11:50 am

ORD

SYD

37h 21m

3 stops

1:15 pm - 6:17 am

SYD

ORD

32h 02m

2 stops

$1,218Multiple Airlines

Sat, Aug 1 - Sat, Aug 8

7:50 pm - 7:10 pm

ORD

SYD

32h 20m

2 stops

11:45 am - 2:55 pm

SYD

ORD

42h 10m

1 stop

$1,223ANA

Mon, Aug 31 - Mon, Sep 7

9:20 am - 11:50 am

ORD

SYD

35h 30m

3 stops

1:15 pm - 12:49 am

SYD

ORD

50h 34m

3 stops

$1,224Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

7:29 am - 11:50 am

ORD

SYD

37h 21m

3 stops

1:15 pm - 1:20 pm

SYD

ORD

39h 05m

3 stops

$1,226Multiple Airlines

Thu, Aug 13 - Thu, Aug 20

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ANA flights from Chicago O'Hare Intl Airport to Sydney

Our best ANA deals on Chicago O'Hare Intl Airport to Sydney flight tickets

ANA

Aug 31

ORD7:50 pmChicago O'Hare Intl

32h 20m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 7

SYD11:45 amSydney Kingsford Smith

42h 10m

1 stop

ORD2:55 pmChicago O'Hare Intl

$1,223

ANA

Aug 31

ORD11:50 amChicago O'Hare Intl

30h 35m

1 stop

SYD9:25 amSydney Kingsford Smith

Sep 7

SYD11:45 amSydney Kingsford Smith

42h 10m

1 stop

ORD2:55 pmChicago O'Hare Intl

$1,238

ANA

Aug 21

ORD5:45 pmChicago O'Hare Intl

34h 25m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 3

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,246

Air Canada flights from Chicago O'Hare Intl Airport to Sydney

Our best Air Canada deals on Chicago O'Hare Intl Airport to Sydney flight tickets

Air Canada

Jul 7

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

Jul 19

SYD9:20 amSydney Kingsford Smith

20h 16m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,394

Air Canada

Jul 7

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

Jul 19

SYD9:20 amSydney Kingsford Smith

25h 45m

2 stops

ORD8:05 pmChicago O'Hare Intl

$1,397

Air Canada

Jul 7

ORD3:40 pmChicago O'Hare Intl

24h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

Jul 19

SYD9:20 amSydney Kingsford Smith

25h 45m

2 stops

ORD8:05 pmChicago O'Hare Intl

$1,398

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/13

9:13 pm-11:50 am

2 stops47h 37m

Sydney Kingsford Smith

Thu 8/20

1:15 pm-1:20 pm

3 stops39h 05m

$1,146

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/16

7:29 am-11:50 am

3 stops37h 21m

Sydney Kingsford Smith

Mon 8/24

1:15 pm-6:17 am

2 stops32h 02m

$1,181

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 7/27

7:15 am-11:50 am

3 stops37h 35m

Sydney Kingsford Smith

Wed 8/5

1:15 pm-6:17 am

2 stops32h 02m

$1,207

Quickest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/13

7:29 am-11:50 am

3 stops37h 21m

Sydney Kingsford Smith

Thu 8/20

1:15 pm-5:59 am

2 stops31h 44m

$1,213

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/16

7:29 am-10:25 pm

3 stops47h 56m

Sydney Kingsford Smith

Mon 8/24

1:15 pm-6:17 am

2 stops32h 02m

$1,214

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/16

7:29 am-11:50 am

3 stops37h 21m

Sydney Kingsford Smith

Thu 8/27

1:15 pm-5:59 am

2 stops31h 44m

$1,217

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 8/1

7:29 am-11:50 am

3 stops37h 21m

Sydney Kingsford Smith

Sat 8/8

1:15 pm-6:17 am

2 stops32h 02m

$1,218

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 8/31

7:50 pm-7:10 pm

2 stops32h 20m

Sydney Kingsford Smith

Mon 9/7

11:45 am-2:55 pm

1 stop42h 10m

$1,223

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/19

9:20 am-11:50 am

3 stops35h 30m

Sydney Kingsford Smith

Wed 8/26

1:15 pm-12:49 am

3 stops50h 34m

$1,224

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/13

7:29 am-11:50 am

3 stops37h 21m

Sydney Kingsford Smith

Thu 8/20

1:15 pm-1:20 pm

3 stops39h 05m

$1,226

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 O'Hare Intl Airport 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 O'Hare Intl Airport and Sydney?

What is the cheapest month to fly to Sydney?

In general, November is the cheapest month to fly from Chicago O'Hare Intl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,173. If you are unable to visit Sydney during the month of November, then departing from Chicago O'Hare Intl Airport during the month June is also very affordable. Most momondo users find prices during this month for around $1,281.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Sydney?

You are more likely to see cheaper flights to Sydney from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,414 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Chicago O'Hare Intl Airport for as low as $1,185 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Sydney flights?

You could potentially save up to 26% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Sydney flight.

How have Chicago O'Hare Intl Airport to Sydney flight prices changed over time?

As of July 2026, prices for Chicago O'Hare Intl Airport to Sydney flights are approximately 136% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Sydney (ORD to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Sydney

Fastest flight time	20h 57m
Direct flights	None

The fastest flight from Chicago O'Hare Intl Airport to Sydney takes 20h 57m

There are no direct flights from Chicago O'Hare Intl Airport to Sydney. There are no popular flight routes from Chicago O'Hare Intl Airport to Sydney.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Sydney

How far is Chicago O'Hare Intl to Sydney Kingsford Smith by plane?
Sydney Kingsford Smith is 9224.8 mi away from Chicago O'Hare Intl. 20h 57m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport?
The number of operators available for flights from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport is 8 as of July 2026.
How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chicago O'Hare Intl Airport to Sydney?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Sydney, the leading airline is Qantas Airways, making up 39% of the total bookings. Other popular airlines include Air Canada with 21%, United Airlines with 16%, and American Airlines with 14%.

Best airlines flying from Chicago O'Hare Intl Airport to Sydney

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $261	Free Cancellation	Rating 7.8 8,452 reviews	Search Delta flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 246 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $837	Free Cancellation	Rating 7.5 1,057 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.1 11,782 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,938 reviews	Search United Airlines flights
Air Canada	PriceFrom $898	Free Cancellation	Rating 7.1 11,305 reviews	Search Air Canada flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,263 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,308	Free Cancellation	Rating 8.0 649 reviews	Search Air New Zealand flights

Parramatta

Bondi Beach

Penrith

Wollongong

Katoomba

Cronulla

Leura

Randwick

Lithgow

Coogee

Manly

Terrigal

Charlestown

Swansea

Why use momondo?

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?

Once all potential Chicago to Sydney flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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ANA flights from Chicago O'Hare Intl Airport to Sydney

Our best ANA deals on Chicago O'Hare Intl Airport to Sydney flight tickets

Air Canada flights from Chicago O'Hare Intl Airport to Sydney

Our best Air Canada deals on Chicago O'Hare Intl Airport to Sydney flight tickets

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Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sydney that are best for you.

See travel insights to Sydney from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Sydney

What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and Sydney?

What is the cheapest month to fly to Sydney?

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Sydney?

Can stopping save me money on Chicago O'Hare Intl Airport to Sydney flights?

How have Chicago O'Hare Intl Airport to Sydney flight prices changed over time?

What is the cheapest airline that flies from Chicago O'Hare Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Sydney?

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Sydney?

Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Sydney?

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Sydney?

When to book flights from Chicago O'Hare Intl Airport to Sydney

Cheap Chicago O'Hare Intl Airport to Sydney (ORD to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Sydney

Fastest flight time

Direct flights

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Sydney

Best airlines flying from Chicago O'Hare Intl Airport to Sydney

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport 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

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Find better results for your trip to Australia

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