£599 Cheap Flights from Washington (IAD) to Sydney (SYD)

You can find one-way and return flights from IAD 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 IAD to SYD ticket fares go up or down.

If you're looking for the cheapest time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), March is typically your best bet! You can expect average return fares around £640 during this month. March offers these lower prices because it often falls outside of peak holiday seasons, when demand for travel tends to decrease. Other budget-friendly months to consider for this route include February and April.

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

EVA Airways is one of the cheapest airlines offering connecting return flights from Washington, DC (IAD-Washington Dulles Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), with prices starting from around £1478 for flights that can be booked for departure within the next year. These flights typically include a layover in Taoyuan Intl. (TPE). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Washington, DC (IAD) 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 cheapest months to fly from Washington, DC (IAD-Washington Dulles Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) are typically March and February, with average return flights around £640. However, the most popular months for this route are December and September, which means you'll find more flight options during those times. If you're looking for the best balance, consider that while March and February offer lower prices, December and September provide a wider selection of flights, which can sometimes lead to better deals if you book in advance.

The earliest flight from Washington Dulles Intl. (IAD) to Kingsford Smith Intl. (SYD) typically departs around 1:50 AM local time. This service is operated by EVA Airways and Garuda Indonesia, and it's a seasonal service active only in August. 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.

There are no nonstop flights from Washington, DC (IAD-Washington Dulles Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.). For this journey of approximately 15,683 kilometres (9,745 miles), flights with one stop typically take around 23 hours. If you opt for flights with two or more stops, your travel time will be longer, usually around 25 hours. Keep in mind that these are average travel times, and the actual duration can vary based on your specific routing, layover times, and factors like wind patterns.

Select the "Business class" and "First class" filters when looking for Washington, DC (IAD) to Sydney, NSW (SYD) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a Washington, DC (IAD-Washington Dulles 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.

If you're planning to travel to Sydney from Washington Dulles Intl. (IAD), you can fly directly into Kingsford Smith Intl. (SYD). Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Los Angeles Intl. (LAX), or Dallas-Fort Worth Intl. (DFW) 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 Washington, DC (IAD-Washington Dulles 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 Washington, DC (IAD-Washington Dulles 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 Washington, DC (IAD) 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.