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CA $822 Cheap Flights from Seattle (SEA) to Perth (PER)

View CA $822 flight on Mon, Mar 15, 2027Opens in a new window

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

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Cheap flights from Seattle (SEA) to Perth (PER)

Prices were available within the past 7 days and start at CA $822 for one-way flights and CA $1,767 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Wed, Feb 10 - Wed, Feb 24
SEA
Seattle
PER
Perth
CA $1,767 Roundtrip, found 5 days ago
CA $1,767
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Wed, Feb 10 from Seattle to Perth, returning Wed, Feb 24, priced at CA $1,767 found 5 days ago
Cathay Pacific
Mon, Feb 1 - Wed, Feb 17
SEA
Seattle
PER
Perth
CA $1,819 Roundtrip, found 1 day ago
CA $1,819
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Mon, Feb 1 from Seattle to Perth, returning Wed, Feb 17, priced at CA $1,819 found 1 day ago
Cathay Pacific
Mon, Mar 15 - Wed, Mar 31
SEA
Seattle
PER
Perth
CA $1,820 Roundtrip, found 5 days ago
CA $1,820
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Mon, Mar 15 from Seattle to Perth, returning Wed, Mar 31, priced at CA $1,820 found 5 days ago
Cathay Pacific
Mon, Sep 14 - Wed, Sep 30
SEA
Seattle
PER
Perth
CA $1,821 Roundtrip, found 4 days ago
CA $1,821
Roundtrip
found 4 days ago
Select Cathay Pacific flight, departing Mon, Sep 14 from Seattle to Perth, returning Wed, Sep 30, priced at CA $1,821 found 4 days ago
Cathay Pacific
Tue, Nov 3 - Fri, Nov 20
SEA
Seattle
PER
Perth
CA $1,836 Roundtrip, found 1 day ago
CA $1,836
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Tue, Nov 3 from Seattle to Perth, returning Fri, Nov 20, priced at CA $1,836 found 1 day ago
Philippine Airlines
Fri, Oct 30 - Thu, Nov 19
SEA
Seattle
PER
Perth
CA $1,840 Roundtrip, found 1 day ago
CA $1,840
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Oct 30 from Seattle to Perth, returning Thu, Nov 19, priced at CA $1,840 found 1 day ago
Air Canada
Tue, Oct 20 - Mon, Nov 2
SEA
Seattle
PER
Perth
CA $1,856 Roundtrip, found 2 days ago
CA $1,856
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Oct 20 from Seattle to Perth, returning Mon, Nov 2, priced at CA $1,856 found 2 days ago
Air Canada
Tue, Oct 20 - Mon, Nov 2
SEA
Seattle
PER
Perth
CA $1,864 Roundtrip, found 2 days ago
CA $1,864
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Oct 20 from Seattle to Perth, returning Mon, Nov 2, priced at CA $1,864 found 2 days ago
Singapore Airlines
Tue, Mar 9 - Wed, Mar 17
SEA
Seattle
PER
Perth
CA $1,898 Roundtrip, found 2 days ago
CA $1,898
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Tue, Mar 9 from Seattle to Perth, returning Wed, Mar 17, priced at CA $1,898 found 2 days ago
Qatar Airways
Tue, Jan 26 - Fri, Feb 12
SEA
Seattle
PER
Perth
CA $1,918 Roundtrip, found 1 day ago
CA $1,918
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Tue, Jan 26 from Seattle to Perth, returning Fri, Feb 12, priced at CA $1,918 found 1 day ago

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER) cost?
You can find one-way and return flights from SEA to PER 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 SEA to PER ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
The cheapest months to fly from SEA to PER 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.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
Enter SEA to PER and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
EVA Airways is one of the cheapest airlines offering connecting return flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER), with prices starting from around CA$2243 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.
How do I find cheap flights from Seattle, WA (SEA) to Perth, WA (PER)?
To find a cheap flight from Seattle, WA (SEA) to Perth, WA (PER), 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
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.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
There are approximately 28 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Perth (PER). Some common connection points include Los Angeles Intl. (LAX), San Francisco Intl. (SFO), and Vancouver Intl. (YVR).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from SEA to PER. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
You'll typically find the most flights from Seattle - Tacoma Intl. (SEA) to Perth (PER) 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 Alaska Airlines, United, and Delta.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Perth (PER) are in the afternoon, from 3pm to 6pm. Many major carriers, including Alaska Airlines, Delta and United, offer flights during this window. Many travellers prefer this time as it allows for a full morning before heading to the airport, and you'll arrive in Perth at a reasonable time.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
There are no nonstop flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER). For flights with one stop, you can expect the journey to take around 22 hours 48 minutes. If your flight has two or more stops, the travel time will be longer, typically around 25 hours. The distance covered on this route is approximately 14,873 kilometres. Keep in mind that these are average times, and your actual flight duration can vary depending on the specific routing, layover times, and factors like wind patterns.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Perth, WA (PER)?
Yes, you can fly business class or first class between SEA and PER. Airlines that offer business class service on this route include:
  • British Airways
  • Air Canada
  • Alaska Airlines
  • Aer Lingus
  • United
  • Qatar Airways
  • Emirates
  • Singapore Airlines
  • Cathay Pacific
  • American Airlines
First class cabins are available on Emirates.
How do I earn miles on a Seattle, WA (SEA) to Perth, WA (PER) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA) to Perth, WA (PER) 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.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA) to Perth, WA (PER) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA) to Perth, WA (PER) 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 Seattle, WA (SEA) to Perth, WA (PER) flight and hotel package?
Securing a Seattle, WA (SEA) to Perth, WA (PER) 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.
Can I cancel or change the date of my flight from Seattle, WA (SEA) to Perth, WA (PER)?
If you booked your Seattle, WA (SEA) to Perth, WA (PER) 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
Seattle - Tacoma Intl.
Destination airport
Perth
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, American Airlines, Cathay Pacific, Emirates, Philippine Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, United
Roundtrip price
CA $1,767
Distance
14785 km

Book with confidence

Seattle to Perth Flights

The easy way to book your flights from Seattle to Perth 

With Expedia, it’s simple to find and book flights to Perth from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 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 Seattle to Perth today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Perth, PER 

Sort your search results by price to find great deals on your flight from Seattle to Perth—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Perth from Seattle currently is just CA $1,767 rising to CA $1,918.  

Here are more money-saving tips: 

  • Fly in February 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 Seattle 

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.

Seattle to Perth Flights

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*Available to Expedia members.