Cheap Flights from Seattle (SEA) to Perth (PSL)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Perth, Scotland (PSL)

Alternative airports near Perth

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dundee DND. Cheapest option available. Average driving time to city center is 22 minutes. Flights from $1,427
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Dundee
Cheapest
Average driving time to city center22 min
Flights from $1,427

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL) cost?
Get a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL)?
The cheapest month to fly from SEA to PSL is , when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SEA to PSL. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL)?
You'll have to catch a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SEA to PSL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL) last-minute?
Booking your ticket from SEA to PSL shortly before your journey is generally more expensive. However, if there's some wiggle room with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a SEA to PSL flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to PSL flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of hotels, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Perth, Scotland (PSL)?
Usually, it's possible to reschedule or cancel your SEA to PSL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Perth
Distance
4445 mi

Book with confidence

Book with confidence

Seattle to Perth Flights

The cheapest times to fly from Seattle to Perth

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Perth are during the month of . You can find some of the cheapest flights from Seattle to Perth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Perth

Sunday is one of the best days to book for cheap flights from Seattle to Perth: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Perth

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Perth in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Perth flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Perth airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Perth Flights

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*Available to One Key members.