Cheap Flights from Chicago (ORD) to Sydney (SYD)

Popular airlines from Chicago O'Hare International Airport (ORD) to Sydney Airport (SYD)

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Cheap Flights from Chicago (ORD) to Sydney (SYD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
All Nippon Airways
All Nippon Airways
All Nippon Airways
American Airlines
United
Air Canada
All Nippon Airways
Air Canada
Qantas Airways

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Find the cheapest month to fly from Chicago (ORD) to Sydney (SYD)

November is typically the cheapest month to fly

From AU$1,619 - AU$2,267 per traveller.

Frequently asked questions

What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
February is typically the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), with average return fares around 1207 AUD. This is about 36% lower than the average price throughout the year. February often sees lower prices as it's outside peak holiday seasons, leading to reduced demand. March and April are also good months to find deals on this route.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Based on booking data from the past year, the cheapest months to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) are typically February and April, with average prices around 1207 AUD. While these months offer the best value, they might not always align with the most popular travel times, so you'll want to consider your priorities for weather and crowd levels in Sydney.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 141 connecting flights per day from Chicago, IL (ORD-O'Hare Intl.) (ORD) to Sydney, NSW (SYD-Kingsford Smith Intl.) (SYD). Some common connection points include Los Angeles Intl. (LAX), San Francisco Intl. (SFO), and Hong Kong Intl. (HKG).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) typically departs at approximately 1:05 AM local time, operated by JL. This is a seasonal service active in April, September, and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you're flying from Chicago O'Hare International Airport (ORD) to Sydney Kingsford Smith International Airport (SYD), you'll typically find the most flights on a Tuesday, with around 66 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Compared to other days, Tuesday offers notably more flight options, making it a good day to consider for your journey.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) are in the afternoon, between 3pm and 6pm. Around 33% of passengers reckon this time window's best. Heaps of major carriers, including United Airlines, Air Canada and American Airlines, offer flights during this window. This timing works well because it allows you to finish your day in Chicago before heading to the airport for a long-haul flight, arriving in Sydney in the morning.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
A flight from ORD to SYD with a layover takes around 24 hours 50 minutes, with the route covering approximately 9,236 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Select the "Business class" and "First class" filters when looking for ORD to SYD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sydney from O'Hare Intl. (ORD)?
From O'Hare Intl. (ORD), you can fly directly into Kingsford Smith Intl. (SYD) to reach Sydney. Some flights may connect through major hubs like Pearson Intl. (YYZ), Los Angeles Intl. (LAX), Dubai Intl. (DXB) before reaching Sydney. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Emirates, Etihad Airways, Japan Airlines, Korean Air, Qantas Airways, Qatar Airways, United
Return price
AU$1,814
Distance
14775 km

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