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

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

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: 21h 00m.

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

Los Angeles (LAX) was the most common stop: 64% of momondo users choosing 1-stop flights on this route connected there.

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 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 to Sydney?

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

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

Turkish Airlines, Alaska Airlines, and Delta are the most popular carriers 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 July 2026, there are 8 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.

$579 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 $1,400 to $1,843. The lowest price recently found on this route was $1,253.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:20 am - 7:05 am

ORD

SYD

30h 45m

2 stops

9:10 am - 6:17 am

SYD

ORD

36h 07m

1 stop

$1,253Multiple Airlines

Wed, Aug 5 - Tue, Aug 25

4:25 pm - 8:15 pm

ORD

SYD

34h 50m

1 stop

12:25 pm - 7:20 am

SYD

ORD

35h 55m

1 stop

$1,254ANA

Mon, Nov 2 - Mon, Nov 16

11:50 am - 7:10 pm

ORD

SYD

40h 20m

1 stop

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,257ANA

Thu, Aug 27 - Wed, Sep 9

4:25 pm - 10:30 am

ORD

SYD

25h 05m

1 stop

9:45 pm - 7:20 am

SYD

ORD

26h 35m

1 stop

$1,261ANA

Fri, Nov 27 - Sun, Dec 6

9:28 am - 11:50 am

ORD

SYD

35h 22m

3 stops

1:15 pm - 6:17 am

SYD

ORD

32h 02m

2 stops

$1,263Multiple Airlines

Sat, Jul 25 - Mon, Aug 3

5:45 pm - 9:25 am

ORD

SYD

24h 40m

1 stop

9:45 pm - 7:20 am

SYD

ORD

26h 35m

1 stop

$1,266ANA

Tue, Sep 15 - Mon, Nov 9

5:45 pm - 7:10 pm

ORD

SYD

34h 25m

1 stop

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,267ANA

Sat, Aug 29 - Mon, Sep 14

9:20 pm - 7:30 am

ORD

SYD

43h 10m

1 stop

8:45 pm - 5:59 am

SYD

ORD

24h 14m

2 stops

$1,268Multiple Airlines

Thu, Aug 20 - Thu, Aug 27

9:20 pm - 6:50 pm

ORD

SYD

30h 30m

2 stops

5:50 pm - 6:17 am

SYD

ORD

27h 27m

1 stop

$1,271Multiple Airlines

Tue, Aug 18 - Mon, Aug 24

7:00 am - 9:25 am

ORD

SYD

35h 25m

2 stops

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,272ANA

Tue, Sep 1 - Wed, Sep 9

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ANA flights from Chicago to Sydney

Our best ANA deals on Chicago to Sydney flight tickets

ANA

Nov 2

ORD4:25 pmChicago O'Hare Intl

34h 50m

1 stop

SYD8:15 pmSydney Kingsford Smith

Nov 16

SYD12:25 pmSydney Kingsford Smith

35h 55m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,254

ANA

Aug 27

ORD11:50 amChicago O'Hare Intl

40h 20m

1 stop

SYD7:10 pmSydney Kingsford Smith

Sep 9

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,257

ANA

Nov 27

ORD4:25 pmChicago O'Hare Intl

25h 05m

1 stop

SYD10:30 amSydney Kingsford Smith

Dec 6

SYD9:45 pmSydney Kingsford Smith

26h 35m

1 stop

ORD7:20 amChicago O'Hare Intl

$1,261

Delta flights from Chicago to Sydney

Our best Delta deals on Chicago to Sydney flight tickets

Delta

Sep 1

MDW10:54 amChicago Midway

28h 56m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 8

SYD9:15 amSydney Kingsford Smith

24h 04m

2 stops

MDW6:19 pmChicago Midway

$1,611

Delta

Oct 9

MDW1:28 pmChicago Midway

26h 22m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 16

SYD10:15 amSydney Kingsford Smith

22h 24m

2 stops

MDW4:39 pmChicago Midway

$1,686

Delta

Aug 5

MDW1:51 pmChicago Midway

25h 59m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 12

SYD9:15 amSydney Kingsford Smith

23h 46m

2 stops

MDW6:01 pmChicago Midway

$1,761

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/5

9:20 am-7:05 am

2 stops30h 45m

Sydney Kingsford Smith

Tue 8/25

9:10 am-6:17 am

1 stop36h 07m

$1,253

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 11/2

4:25 pm-8:15 pm

1 stop34h 50m

Sydney Kingsford Smith

Mon 11/16

12:25 pm-7:20 am

1 stop35h 55m

$1,254

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/27

11:50 am-7:10 pm

1 stop40h 20m

Sydney Kingsford Smith

Wed 9/9

11:45 am-8:40 am

1 stop35h 55m

$1,257

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 11/27

4:25 pm-10:30 am

1 stop25h 05m

Sydney Kingsford Smith

Sun 12/6

9:45 pm-7:20 am

1 stop26h 35m

$1,261

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 7/25

9:28 am-11:50 am

3 stops35h 22m

Sydney Kingsford Smith

Mon 8/3

1:15 pm-6:17 am

2 stops32h 02m

$1,263

Quickest round-trip

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 9/15

5:45 pm-9:25 am

1 stop24h 40m

Sydney Kingsford Smith

Mon 11/9

9:45 pm-7:20 am

1 stop26h 35m

$1,266

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 8/29

5:45 pm-7:10 pm

1 stop34h 25m

Sydney Kingsford Smith

Mon 9/14

11:45 am-8:40 am

1 stop35h 55m

$1,267

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 8/20

9:20 pm-7:30 am

1 stop43h 10m

Sydney Kingsford Smith

Thu 8/27

8:45 pm-5:59 am

2 stops24h 14m

$1,268

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 8/18

9:20 pm-6:50 pm

2 stops30h 30m

Sydney Kingsford Smith

Mon 8/24

5:50 pm-6:17 am

1 stop27h 27m

$1,271

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 9/1

7:00 am-9:25 am

2 stops35h 25m

Sydney Kingsford Smith

Wed 9/9

11:45 am-8:40 am

1 stop35h 55m

$1,272

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?

What is the cheapest month to fly to Sydney?

In general, May 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 $142. If you are unable to visit Sydney during the month of May, then departing from Chicago during the month March is also very affordable. Most momondo users find prices during this month for around $146.

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 $1,420 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 $1,185 on momondo.

Can stopping save me money on Chicago to Sydney flights?

You could potentially save up to 26% 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 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 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

Fastest flight time	20h 53m
Direct flights	None

The fastest flight from Chicago to Sydney takes 20h 53m

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?
There are 9237.5 mi between Chicago and Sydney Kingsford Smith. By plane, this route typically takes 20h 53m.
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 are 8 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 40% of the total bookings. Other popular airlines include United Airlines with 18%, Air Canada with 16%, and American Airlines with 12%.

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 $261	Free Cancellation	Rating 7.8 8,460 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 1,059 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $837	Free Cancellation	Rating 7.1 11,806 reviews	Search American Airlines flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,974 reviews	Search United Airlines flights
Air Canada	PriceFrom $898	Free Cancellation	Rating 7.1 11,325 reviews	Search Air Canada flights
ANA	PriceFrom $1,209	Free Cancellation	Rating 8.3 1,271 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,308	Free Cancellation	Rating 8.0 650 reviews	Search Air New Zealand flights

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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?

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 $579

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 9/5. 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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ANA flights from Chicago to Sydney

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

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

Find info about flight duration, direct flights, and airports for your flight from Chicago to Sydney

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.

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

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