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.

The cheapest months to fly from Washington, DC (IAD) to Sydney, NSW (SYD) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

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

To find a cheap flight from Washington, DC (IAD-Washington Dulles 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.

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 78 connecting flights per day from Washington Dulles Intl. (IAD) to Kingsford Smith Intl. (SYD). Some common connection points include Los Angeles Intl. (LAX), San Francisco Intl. (SFO), and Pearson Intl. (YYZ).

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.

You'll typically find the most flights from Washington Dulles Intl. (IAD) to Sydney, NSW (SYD) on a Sunday, with around 55 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Looking at the week, Sunday offers notably more flight options compared to other days, especially when compared to Wednesday, which has around 21 flights.

The most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) are in the afternoon, from 3pm to 6pm. Many major carriers, including American Airlines, United and Delta, 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 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.

You can fly business class or first class between IAD and SYD. Airlines that offer business class service on this route include:

* Turkish Airlines
* Iberia
* Etihad Airways
* Swiss International Air Lines
* Korean Air
* Emirates
* British Airways
* Air Canada
* Mesa Airlines
* Qatar Airways
* Delta
* Aer Lingus
* American Airlines
* United
* All Nippon Airways

First class cabins are available on Emirates and American Airlines.

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