$893 Cheap Qantas Airways flights Washington (IAD) to Sydney (SYD)

You’ll find affordable round-trip Qantas flights from $1,545 from IAD to SYD by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $893 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

May is one of the cheapest months to fly to Sydney with Qantas. You could also find excellent prices on one-way and round-trip fares in August.

To find affordable flights from IAD to SYD with Qantas, start searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct journey from IAD to SYD with Qantas or any other carriers, select the “Nonstop” filter when searching for flights.

To find the earliest departures from IAD to SYD with Qantas, sort your results by “Early Morning” and “Morning.” Booking an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Qantas flights from Washington Dulles Intl. Airport (IAD) to Sydney land at Kingsford Smith Intl. Airport (SYD). This is the main gateway to this destination.

On a standard economy flight with Qantas from IAD to SYD, passengers can bring 1 checked-in bag up to 66 lb with dimensions not exceeding 62 inches in total. For hand luggage, you’re permitted 1 cabin bag weighing up to 22 lb and measuring no more than 22 inches x 9 inches x 14 inches. Size and weight allowances can vary depending on your cabin class and airfare type. To make sure you won’t face additional charges at the airport, check your Qantas booking or go to the airline’s website before packing your bags.

Taking off from IAD to SYD with Qantas means enjoying a host of benefits, such as top-tier customer service and a 4-star airline rating. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s on top of the Qantas Frequent Flyer points you can earn with Qantas.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of booking, but your airline may charge a fee after that time. For further details about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to adjust your plans without being charged, tick the “Changes included” and “No cancel fee” filters when organizing your next trip.