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

View AU$1,007 flight on Thu, 10 Sept 2026Opens in a new window

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.

Qantas Airways
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,657 Return, found 5 days ago
AU$1,657
Return
found 5 days ago
Select Qantas Airways flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,657 found 5 days ago
Qantas Airways
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,658 Return, found 5 days ago
AU$1,658
Return
found 5 days ago
Select Qantas Airways flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,658 found 5 days ago
United
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,663 Return, found 5 days ago
AU$1,663
Return
found 5 days ago
Select United flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,663 found 5 days ago
Delta
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,663 Return, found 5 days ago
AU$1,663
Return
found 5 days ago
Select Delta flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,663 found 5 days ago
American Airlines
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,680 Return, found 5 days ago
AU$1,680
Return
found 5 days ago
Select American Airlines flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,680 found 5 days ago
Qantas Airways
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,685 Return, found 5 days ago
AU$1,685
Return
found 5 days ago
Select Qantas Airways flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,685 found 5 days ago
American Airlines
Tue, 16 Feb - Tue, 2 Mar
ORD
Chicago
SYD
Sydney
AU$1,690 Return, found 5 days ago
AU$1,690
Return
found 5 days ago
Select American Airlines flight, departing Tue, 16 Feb from Chicago to Sydney, returning Tue, 2 Mar, priced at AU$1,690 found 5 days ago
American Airlines
Mon, 1 Mar - Sun, 14 Mar
ORD
Chicago
SYD
Sydney
AU$1,696 Return, found 5 days ago
AU$1,696
Return
found 5 days ago
Select American Airlines flight, departing Mon, 1 Mar from Chicago to Sydney, returning Sun, 14 Mar, priced at AU$1,696 found 5 days ago
Qatar Airways
Thu, 25 Mar - Fri, 11 June
ORD
Chicago
SYD
Sydney
AU$1,959 Return, found 4 days ago
AU$1,959
Return
found 4 days ago
Select Qatar Airways flight, departing Thu, 25 Mar from Chicago to Sydney, returning Fri, 11 June, priced at AU$1,959 found 4 days ago
Air Canada
Wed, 9 Sept - Wed, 16 Sept
ORD
Chicago
SYD
Sydney
AU$1,998 Return, found 3 hours ago
AU$1,998
Return
found 3 hours ago
Select Air Canada flight, departing Wed, 9 Sept from Chicago to Sydney, returning Wed, 16 Sept, priced at AU$1,998 found 3 hours ago

Alternative airports near Sydney

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

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city centre is 16 minutes. Flights from AU$2,322
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city centre16 min
Flights from AU$2,322

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) cost?
You can find one-way and return flights from ORD to SYD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ORD to SYD ticket fares go up or down.
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 AU$1332. February often sees lower prices because it falls outside of peak holiday seasons, when demand for international travel tends to decrease. Other cheap months to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) include March and April.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Enter ORD to SYD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Chicago, IL (ORD) to Sydney, NSW (SYD)?
To find a cheap flight from Chicago, IL (ORD) to Sydney, NSW (SYD), 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) to Sydney, NSW (SYD)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 127 connecting flights per day from Chicago O'Hare International (ORD) to Sydney Kingsford Smith International (SYD). Some common connection points include Los Angeles International (LAX), San Francisco International (SFO), and Dallas-Fort Worth International (DFW).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from Chicago O'Hare International Airport (ORD) to Sydney Kingsford Smith International Airport (SYD) typically departs around 1:05 AM local time. This flight is operated by Japan Airlines. 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.)?
You'll find the most flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) on Tuesdays, with around 69 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Tuesdays offer notably more flight options compared to other days of the week, so if flexibility allows, this could be 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, from 3pm to 6pm. Many major carriers, including American Airlines, United and Air Canada, offer flights during this window. Many travellers prefer this time because it allows for a full day of activities before heading to the airport, and you'll arrive in Sydney ready to start your day.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are no nonstop flights from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.). The distance between these two cities is approximately 14,864 kilometres. For flights with one stop, you can expect the journey to typically take around 21 hours 30 minutes. If your flight has two or more stops, the travel time is usually longer, averaging about 24 hours. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and wind patterns.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
You can fly business class or first class between ORD and SYD. Airlines that offer business class service on this route include:
  • Etihad Airways
  • Korean Air
  • Turkish Airlines
  • Qatar Airways
  • Cathay Pacific
  • British Airways
  • Air Canada
  • Emirates
  • Japan Airlines
  • All Nippon Airways
  • United
  • American Airlines
First class cabins are available on British Airways, Emirates, Japan Airlines, and American Airlines.
How do I earn miles on a Chicago, IL (ORD) to Sydney, NSW (SYD) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD) to Sydney, NSW (SYD) 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, NSW (SYD) from Chicago, IL (ORD)?
If you're planning to travel to Sydney from O'Hare Intl. (ORD), you can fly directly into Kingsford Smith Intl. (SYD). Some flights may connect through major hubs like Pearson Intl. (YYZ), Los Angeles Intl. (LAX), or Hartsfield-Jackson Atlanta Intl. (ATL) 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) to Sydney, NSW (SYD)?
If you booked your Chicago, IL (ORD) to Sydney, NSW (SYD) 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, Philippine Airlines, Qantas Airways, Qatar Airways, United
Return price
AU$1,656
Distance
14775 km

Book with confidence

Your quick guide to flights from Chicago to Sydney

Pick up great flights from Chicago to Sydney

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Chicago to Sydney. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Chicago to Sydney that take around hours.

Find cheap flights from Chicago to Sydney

From the great flight deals with prices currently ranging from AU$1,657 to AU$1,998, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Chicago to Sydney around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Sydney is normally in February.

Reasons to book your flight from Chicago to Sydney with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Chicago to Sydney across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Sydney right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Chicago to Sydney

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