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

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.

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.

Enter ORD to SYD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.