Title: Cheap Flights from Washington (IAD) to Perth (PSL) - Expedia.ca ![Perth](https://images.trvl-media.com/place/9481/1e2f8680-5475-4775-99da-de99172071f7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/9481/1e2f8680-5475-4775-99da-de99172071f7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (IAD) to Perth (PSL) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Washington Dulles International Airport (IAD) to Perth, Scotland (PSL) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psl,departure:30/09/2025TANYT&leg2=from:psl,to:iad,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Washington to Perth (IAD - PSL) route information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Perth | | Distance | 5535 km | ## Chantilly to Perth Flights **The easy way to book your flights from Washington to Perth**  With Expedia, it’s simple to find and book flights to Perth from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Perth, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Perth today, tomorrow, or this week.   **Save dollars with cheap flights from Washington Dulles Intl., IAD to Perth, PSL**  Sort your search results by price to find great deals on your flight from Washington to Perth—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Perth from Washington currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Perth   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Perth from Washington**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Perth with Expedia today. ## Frequently asked questions ### How much is a flight from IAD to PSL? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from IAD to PSL was . Fares this cheap don't last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to PSL? > When it comes to cancellation fees, every airline has a different set of terms and conditions. If you decide to cancel your vacation, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Dulles Intl. Airport to PSL that have flexible change policies? > Flights from Dulles Intl. Airport to PSL with flexible change policies are available with many airlines. Simply use our "No change fees" filter when searching. You'll only need to pay the cost difference between the two flights, with no additional fees to worry about. ### How far is the flight from Dulles Intl. Airport to PSL? > With around 5,600 kilometres separating Chantilly and Perth, your flight will be a long one. Pack wisely and make your journey more comfortable. Simple things like warm clothing and a quality travel pillow can make a massive difference. ### Which airlines fly direct from Dulles Intl. Airport to PSL? > Direct flights aren't available, so you'll have to make at least one stop between Washington Dulles Intl. Airport (IAD) and PSL. Use the layover time to stretch your legs and grab a coffee. ### Are Dulles Intl. Airport to PSL flight tickets cheaper when they're purchased at the last minute? > It is possible to find an awesome last-minute deal from Dulles Intl. Airport to PSL, but it can also be hit-or-miss. As many airlines release seats up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares carrier prices and updates flight deals all the time, so you can rest assured you're always getting the latest offers. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Other Airlines - Main Airports for Flights - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Washington - [Washington to Ottawa (IAD - YOW)](https://expedia.ca/lp/flights/iad/yow/washington-to-ottawa) - [Washington to Calgary (IAD - YYC)](https://expedia.ca/lp/flights/iad/yyc/washington-to-calgary) - [Washington to Bangkok (IAD - BKK)](https://expedia.ca/lp/flights/iad/bkk/washington-to-bangkok) - [Washington to Paris (IAD - CDG)](https://expedia.ca/lp/flights/iad/cdg/washington-to-paris) - [Washington to Jeddah (IAD - JED)](https://expedia.ca/lp/flights/iad/jed/washington-to-jeddah) - [Washington to Winnipeg (IAD - YWG)](https://expedia.ca/lp/flights/iad/ywg/washington-to-winnipeg) - [Washington to Delhi (IAD - DEL)](https://expedia.ca/lp/flights/iad/del/washington-to-delhi) - 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Scan the QR code with your device camera and download our app ![QR code to download the app](data:image/png;base64,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)