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Cheap flight tickets from Seattle / Tacoma International to Perth

Compare Seattle / Tacoma International to Perth flight deals

Find the cheapest month or even day of the year to fly to Perth

Book the best Perth fare with no extra fees

Flight deals from Seattle / Tacoma International to Perth

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Perth? Find the lowest prices on one-way and return tickets right here.
Perth.RM3,950 per passenger.Departing Thu, 23 Apr, returning Thu, 14 May.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Seattle / Tacoma International on Thu, 23 Apr, arriving in Perth.Inbound indirect flight with Cathay Pacific, departs from Perth on Thu, 14 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM3,950, select.
Perth.RM4,260 per passenger.Departing Mon, 6 Apr, returning Mon, 13 Apr.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Seattle / Tacoma International on Mon, 6 Apr, arriving in Perth.Inbound indirect flight with Cathay Pacific, departs from Perth on Mon, 13 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM4,260, select.
Perth.RM4,581 per passenger.Departing Sun, 22 Feb, returning Sun, 1 Mar.Return flight with Singapore Airlines and AirAsia.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Sun, 22 Feb, arriving in Perth.Inbound indirect flight with AirAsia, departs from Perth on Sun, 1 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM4,581, select.
Perth.RM4,648 per passenger.Departing Sun, 19 Jul, returning Sun, 16 Aug.Return flight with Korean Air and BatikAir Malaysia.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Sun, 19 Jul, arriving in Perth.Inbound indirect flight with BatikAir Malaysia, departs from Perth on Sun, 16 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM4,648, select.
Perth.RM4,760 per passenger.Departing Mon, 1 Jun, returning Mon, 8 Jun.Return flight with Alaska Airlines and Indonesia AirAsia.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Mon, 1 Jun, arriving in Perth.Inbound indirect flight with Indonesia AirAsia, departs from Perth on Mon, 8 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM4,760, select.
Perth.RM4,842 per passenger.Departing Wed, 1 Jul, returning Fri, 17 Jul.Return flight with Korean Air and Scoot.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Wed, 1 Jul, arriving in Perth.Inbound indirect flight with Scoot, departs from Perth on Fri, 17 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM4,842, select.
Perth.RM5,764 per passenger.Departing Sat, 21 Feb, returning Sat, 28 Feb.Return flight with ANA (All Nippon Airways) and BatikAir Malaysia.Outbound indirect flight with ANA (All Nippon Airways), departs from Seattle / Tacoma International on Sat, 21 Feb, arriving in Perth.Inbound indirect flight with BatikAir Malaysia, departs from Perth on Sat, 28 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM5,764, select.
Perth.RM6,366 per passenger.Departing Fri, 13 Mar, returning Mon, 23 Mar.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Fri, 13 Mar, arriving in Perth.Inbound indirect flight with Singapore Airlines, departs from Perth on Mon, 23 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From RM6,366, select.

Find the cheapest month to fly from Seattle / Tacoma International to Perth

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Perth flights are currently cheapest in April.
Feb
from RM5,764
Mar
from RM6,366
Apr
from RM4,260
May
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Jun
from RM4,760
Jul
from RM4,842
Aug
Find prices
Sep
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Oct
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Nov
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Dec
from RM6,997
Jan
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Seattle / Tacoma International to Perth: Alternative routes

Compare routes from Seattle / Tacoma International to Perth below. You may find an airport to fly into that's cheaper, faster, or easier than Perth.

Perth

10km from central Perth
ClosestCheapest
from RM3,950
Search flights

Seattle to Perth: Flight information

The things to know before you go.
Cheapest flight foundRM3,950
Cheapest month to flyApril

Check out these Perth hotels

Ready to plan your stay? Other travellers rate these Perth hotels for cleanliness, service and location.
Airport B&B
1.98 km from Perth
RM357
Per night
Ingot Hotel Perth, an Ascend Collection Hotel
3.34 km from Perth
RM640
Per night
The Stirling Arms Hotel
4.32 km from Perth
RM530
Per night
Airport B&B
1.98 km from Perth
RM357
Per night
Ingot Hotel Perth, an Ascend Collection Hotel
3.34 km from Perth
RM640
Per night
The Stirling Arms Hotel
4.32 km from Perth
RM530
Per night
Explore top-rated hotels

Finding cheap flights from Seattle / Tacoma International to Perth: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to Perth is RM3,950. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle / Tacoma International to Perth. But we found flights with one or more stops from RM3,950.
As of February 2026, there are no flights flying from Seattle / Tacoma International to Perth.
The cheapest month to fly from Seattle / Tacoma International to Perth is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Perth Airport on Thursday, 23 April 2026.
No airlines currently offer direct flights between Seattle / Tacoma International Airport and Perth Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Perth but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Perth is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Cathay Pacific offers the cheapest flight tickets to Perth.

Flying from Seattle-Tacoma International Airport (SEA) to Perth Airport (PER): what you need to know

  • The timezone in Perth is UTC+8, which is 15 hours ahead of Seattle.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your SEA to PER flight.

  • During popular months such as July, it's best to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you travel during a high season in general.

  • Think about adding a stopover when booking your ticket from Seattle-Tacoma International Airport to Perth Airport. Simply uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between SEA and PER:

    • Charles de Gaulle Airport

    • London Heathrow Airport

    • Dubai Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Perth Airport (PER)

  • At the moment, RM1,691 is the lowest price we've seen for a one-way Seattle-Tacoma International Airport to Perth Airport flight. The best price for a return plane ticket is RM3,950. Keep in mind that fares may change due to availability when booking.

  • To get your hands on cheap tickets from SEA to PER, book ahead. Airlines tend to offer lower fares when flights are first released.

  • The 'Whole month' tool shows you the cheapest flights from Seattle-Tacoma International Airport to Perth Airport throughout the month. It's an easy way to find a bargain if your travel plans are flexible.

  • Getting your hands on cheap flights from SEA to PER couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

  • Find the perfect flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Seattle-Tacoma International Airport to Perth Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport scores top marks for its on-time performance. 81.27% of flights that depart SEA reach their destination on time.

  • To get to Seattle-Tacoma International Airport from central Seattle, it takes about 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 23 kilometres from the airport to the city centre.

  • You can expect a journey time of roughly 55 minutes on public transport.

  • Looking for a convenient hotel near SEA? If you're boarding an early flight from Seattle-Tacoma International Airport to Perth Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Perth Airport (PER)

Getting from Perth Airport (PER) to central Perth

  • Perth Airport is roughly 16 kilometres from central Perth. Driving there takes about 20 minutes.

  • If you're travelling by public transport, expect a journey of about 30 minutes.

When to fly to Perth Airport (PER)

  • July is the most popular month for flights from Seattle-Tacoma International Airport to Perth Airport. To steer clear of the crowds, visit Perth in February.

  • Book your flight from Seattle-Tacoma International Airport to Perth Airport for January if you'd like to go to Perth during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 35ºC (95ºF).

  • August has average temperatures of between 8ºC (46ºF) and 20ºC (68ºF). Look for cheap tickets from SEA to PER sometime around then if you like travelling in cooler conditions.

Explore more of Australia

  • Rockingham is just one of the many cities in Australia waiting to be discovered after you've seen Perth. Around 40 kilometres away to the south, its best attractions include Penguin Island, The Catalpa Memorial and Point Peron.

  • Around 64 kilometres south of Perth, Mandurah is another essential stop in Australia. Experience major highlights starting with Emma Blyth Gallery, Dolphin Quay and Len Howard Conservation Park.

Plan the rest of your trip from Seattle to Perth

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.