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$592 Cheap Flights from Perth (PER) to Seattle (SEA)

View $592 flight on Mon, Feb 22, 2027Opens in a new window

Popular airlines from Perth Airport (PER) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Perth to Seattle (PER-SEA)

Prices were available within the past 7 days and start at $592 for one-way flights and $1,367 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Australia
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,367 Roundtrip, found 5 days ago
$1,367
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,367 found 5 days ago
Virgin Australia
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,372 Roundtrip, found 5 days ago
$1,372
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,372 found 5 days ago
Jetstar
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,374 Roundtrip, found 5 days ago
$1,374
Roundtrip
found 5 days ago
Select Jetstar flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,374 found 5 days ago
Jetstar
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,376 Roundtrip, found 5 days ago
$1,376
Roundtrip
found 5 days ago
Select Jetstar flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,376 found 5 days ago
Jetstar
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,380 Roundtrip, found 5 days ago
$1,380
Roundtrip
found 5 days ago
Select Jetstar flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,380 found 5 days ago
Jetstar
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,381 Roundtrip, found 5 days ago
$1,381
Roundtrip
found 5 days ago
Select Jetstar flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,381 found 5 days ago
Jetstar
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,394 Roundtrip, found 5 days ago
$1,394
Roundtrip
found 5 days ago
Select Jetstar flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,394 found 5 days ago
Qantas Airways
Mon, Aug 17 - Thu, Aug 20
PER
Perth
SEA
Seattle
$1,396 Roundtrip, found 5 days ago
$1,396
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Mon, Aug 17 from Perth to Seattle, returning Thu, Aug 20, priced at $1,396 found 5 days ago
Alaska Airlines
Fri, Jul 31 - Mon, Aug 31
PER
Perth
SEA
Seattle
$1,403 Roundtrip, found 14 hours ago
$1,403
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Fri, Jul 31 from Perth to Seattle, returning Mon, Aug 31, priced at $1,403 found 14 hours ago
United
Mon, Sep 7 - Wed, Sep 9
PER
Perth
SEA
Seattle
$1,470 Roundtrip, found 2 days ago
$1,470
Roundtrip
found 2 days ago
Select United flight, departing Mon, Sep 7 from Perth to Seattle, returning Wed, Sep 9, priced at $1,470 found 2 days ago

Find the cheapest month to fly from Perth (PER) to Seattle (SEA)

June is typically the cheapest month to fly

From $936 - $1,564 per traveler.

What you need to know for your flight from Perth to Seattle - Tacoma Intl.

Perth (PER) to Seattle (SEA) at a glance

Explore a range of options for flights from Perth (PER) to Seattle (SEA) on this international long-haul journey. Compare itineraries from various full-service carriers to find the best fit for your budget and schedule as you prepare to discover Seattle's renowned attractions and neighborhoods. Here, you can find essential details about your journey from Perth Airport to Seattle-Tacoma International Airport.

  • Fastest (typical) flight duration: around 20h 45m in-flight, plus roughly 4h 45m total layover with two or more stops
  • Route distance: roughly 9,200 miles (14,810 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $645–$2450, depending on seasonality and how far ahead you book

Flights from Perth Airport (PER) to Seattle - Tacoma International Airport (SEA)

Based on recent traveler bookings, here are the top airlines favored for flights from Perth to Seattle, often selected for their multi-stop services. Popular layover spots include Narita International Airport (NRT) with a layover of about 1 hour and 45 minutes, Hong Kong International Airport (HKG) at roughly 2 hours and 45 minutes, and Kingsford Smith International Airport (SYD) with a longer layover of about 5 hours. This variety allows you to mix and match price, travel time, and cabin class to craft the perfect itinerary.

  • Japan Airlines: As a comprehensive airline, Japan Airlines provides multi-stop options, with one-way fares generally ranging from $685 to $3130. This airline represents about 59% of all departures on this route, featuring an in-flight duration of 20 hours and 45 minutes, and a total travel time of approximately 25 hours and 30 minutes, including layovers.

Travelers flying from Perth to Seattle can opt to upgrade to business class service with Japan Airlines, enhancing their travel experience on this route.

Alternative routes from Perth (PER) to Seattle (SEA)

  • Perth to Seattle (PER-BFI): Boeing Field Airport (BFI) is located approximately 6 miles from Seattle - Tacoma International Airport (SEA).
  • Perth to Kenmore (PER-KEH): Kenmore Air Harbor Airport (KEH) is roughly 22 miles distant from Seattle - Tacoma International Airport (SEA).
  • Rottnest Island to Seattle (RTS-SEA): Rottnest Island Airport (RTS) is about 25 miles from Perth Airport (PER).

How to find the best prices for flights from Perth (PER) to Seattle (SEA)

Getting some of the best deals on flights from Perth to Seattle is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, which aligns with when most travelers make their reservations. Evening departures (6 PM to 12 AM) often offer lower prices, although early morning flights (12 AM to 5 AM) are the most popular. Additionally, flying on Wednesday typically provides cheaper rates, while Saturday remains the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Perth Airport

Seattle welcomes travelers from Perth with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, is situated approximately 4.3 miles from the airport and is typically reached by car.

Frequently asked questions

How much does a flight from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $592 and cheap return flights from $1,367 Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights generally range between $893 and $3926, and roundtrip flights usually range from $1824 to $10766. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from PER to SEA is August 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're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter PER to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Singapore Airlines is one of the cheapest airlines offering connecting flights from Perth (PER) to Seattle (SEA) with a layover in Changi (SIN), starting from around $1453 for a round-trip ticket. 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.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma 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.
What is the best time to fly from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
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.
What is the earliest flight from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Perth (PER) to Seattle - Tacoma International (SEA) usually departs at around 12:10 AM, with airlines like Cathay Pacific and Air Canada operating this route. This is a seasonal service active in June and September, giving you a chance to maximize your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from PER to SEA with a connection usually takes about 22 hours, traveling roughly 9,242 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly business class between PER and SEA. Airlines that offer business class service on this route include:

  • Qantas Airways
  • Emirates
  • Qatar Airways
  • Singapore Airlines
  • Virgin Australia
  • All Nippon Airways
  • Cathay Pacific
  • Air New Zealand
  • Philippine Airlines
  • China Southern Airlines

First class is available with Emirates.
How do I earn miles on a Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma 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.
What airports do you fly into for Seattle from PER (PER)?
From PER (PER), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Kingsford Smith Intl. (SYD), Tullamarine (MEL), BNE (BNE) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma 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.
Is it cheaper to book a Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages 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.
Can I cancel or change the date of my flight from Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Perth, WA (PER) to Seattle, WA (SEA-Seattle - Tacoma 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.

Travel information

Origin airport
Perth
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, American Airlines, Cathay Pacific, Emirates, Japan Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, United
Roundtrip price
$1,366
Distance
9240 mi

Book with confidence

Perth to Seattle Flights

The cheapest times to fly from Perth to Seattle

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 Perth to Seattle are during the month of August. You can find some of the cheapest flights from Perth to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Perth to Seattle

Sunday is one of the best days to book for cheap flights from Perth to Seattle: 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 Perth to Seattle

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 Perth to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $592 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 Perth to Seattle 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 Perth to Seattle 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.

 

Perth to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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