Q: How much does it cost for a return flight from Chicago to Sydney?

Airfare is below average for this route at the moment. Chicago to Sydney flights typically cost between $1,304 and $2,024 in August. The cheapest return flight price found within the last 3 days was $1,241 on Air Canada (24 Aug-9 Sept).

Question 1

What’s the fastest stopover option from Chicago to Sydney?

Accepted Answer

Flights via San Francisco (SFO) have the shortest average one-way travel time for one-stop routes: 21h 18m. Find deals

Question 2

Which airport typically offers the quickest stopover for flights from Chicago to Sydney?

Accepted Answer

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 1h 10m. Find deals

Question 3

What’s the top stopover airport for flights from Chicago to Sydney?

Accepted Answer

Los Angeles (LAX) – chosen by Cheapflights users on 80% of one-stop itineraries from Chicago to Sydney on Cheapflights. Find deals

Question 4

What’s the cheapest stopover airport for flights from Chicago to Sydney?

Accepted Answer

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of $1,324. Find deals

Question 5

How much does it cost for a return flight from Chicago to Sydney?

Accepted Answer

Airfare is below average for this route at the moment.Chicago to Sydney flights typically cost between $1,304 and $2,024 in August.
The cheapest return flight price found within the last 3 days was $1,241 on Air Canada (24 Aug-9 Sept).

Question 6

What are the cheapest airlines flying from Chicago to Sydney round-trip?

Accepted Answer

Cheapflights users have booked flights from Chicago to Sydney round-trip from $1,241. Another airline that can offer you cheap pricing is Delta. Air Canada is currently priced 20% below the average price you’ll pay for this route.

Question 7

What are the cheapest airlines to fly from Chicago to Sydney one-way?

Accepted Answer

$993 is the cheapest one-way deal found within the past few days, from Fiji Airways. You may also be able to find cheap deals on ANA and Qantas Airways, with prices starting from $1,149 and $1,267, respectively.

Question 8

How far ahead should I book a flight from Chicago to Sydney?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Chicago to Sydney, you should look to book at least 2 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 9

What is the cheapest month to book a flight from Chicago to Sydney?

Accepted Answer

Currently, May is the cheapest month in which you can book a flight from Chicago to Sydney (average of $129). Flying from Chicago to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 10

What is the cheapest day to fly from Chicago to Sydney?

Accepted Answer

Travellers seeking maximum savings on their Chicago to Sydney flight should consider departing on Sunday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 11

E

Accepted Answer

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Question 12

E

Accepted Answer

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Question 13

What is the cheapest day to fly return from Chicago to Sydney?

Accepted Answer

Saturday is generally a great day to depart. Flying on this day could help you save up to 37%.

Question 14

What is the cheapest month to fly from Chicago to Sydney?

Accepted Answer

Flights from Chicago to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Chicago to Sydney in August, with the cheapest ticket starting at $1,152.

Question 15

What is the cheapest time of day to fly from CHI to SYD?

Accepted Answer

When flying from Chicago to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 35% versus a flight at midday.

Question 16

What airport do you fly into for flights to Sydney from Chicago?

Accepted Answer

For a flight from Chicago to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 inbound flights from Chicago per day. 2 airlines have flights to Sydney Kingsford Smith from Chicago on a regular basis.

Question 17

Can I find deals for flights from Chicago to Sydney that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Chicago to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 18

How can I find direct flights from Chicago to Sydney?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Sydney.

Question 19

Can I find deals for business class flights from Chicago to Sydney?

Accepted Answer

Yes. Cheapflights offers flight deals from Chicago to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 20

How does Cheapflights help users find flights from Chicago to Sydney?

Accepted Answer

Deals for Chicago to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Chicago to Sydney?

Accepted Answer

Cheapflights helps you find that perfect flight to Sydney from Chicago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 22

Can Cheapflights find flights from Chicago to Sydney with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Chicago to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 23

Can Cheapflights notify me if prices for flights from Chicago to Sydney become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on Chicago to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	$1,241
One-way from	$630
Popular in	December
Cheapest in	August
Average price	$1,329

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,324	Average$1,428	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air Canada	Cheapest$1,694	Average$1,828	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Cheap flights from Chicago to Sydney from $630

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Chicago to Sydney Kingsford Smith are usually found in August or May, booked 2 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Chicago to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Chicago to Sydney

Cheapest flights from Chicago to SydneyExplore the most affordable flight options available from Chicago to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2025.

Explore the most affordable flight options available from Chicago to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Chicago to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Chicago with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Sydney

How far ahead should I book a flight from Chicago to Sydney?

Use this chart to determine the optimal time to book a return flight from Chicago to Sydney. Price data was last updated on 1 August 2025.

What is the cheapest month to book a flight from Chicago to Sydney?

What is the cheapest time of day to fly from CHI to SYD?

Find hourly flight availability from Chicago to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 August 2025.

How much does it cost for a return flight from Chicago to Sydney?

What’s the top stopover airport for flights from Chicago to Sydney?

Share of one-stop return flights from Chicago to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Chicago to Sydney?

Average return fare for one-stop flights from Chicago to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Chicago to Sydney?

Shortest average travel time for one-stop one-way flights from Chicago to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Chicago to Sydney?

Average stopover duration for one-stop one-way flights from Chicago to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 2 August 2025.

Read reviews from past customers who have flown with ANA, Fiji Airways, andDelta from Chicago to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Sydney from Chicago?

What are the cheapest airlines flying from Chicago to Sydney round-trip?

What are the cheapest airlines to fly from Chicago to Sydney one-way?

Can I find deals for flights from Chicago to Sydney that include hotel bookings?

How can I find direct flights from Chicago to Sydney?

Can I find deals for business class flights from Chicago to Sydney?

What is the cheapest month to book a flight from Chicago to Sydney?

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Chicago to Sydney

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chicago to Sydney?

Why should you use Cheapflights to find cheap flight tickets from Chicago to Sydney?

Can Cheapflights find flights from Chicago to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from Chicago to Sydney become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Chicago to Sydney
Explore the most affordable flight options available from Chicago to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2025.