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$623+ Cheap flights from Perth (PER) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
PER — SEA
Sep 16 — Sep 231
Wed 9/16
Wed 9/23
1 adult, Economy
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Cheap flight deals from Perth to Seattle

Cheapest flights from Perth to Seattle
Explore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.

This lol.travel deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:35 am -
1 stop26h 30m
Fri 10/2311:10 pm -
1 stop41h 10m
Deal found 8/17$1,152
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:35 am -
3 stops48h 40m
Fri 9/1812:10 am -
3 stops41h 00m
Deal found 8/12$1,221
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:25 pm -
3 stops35h 50m
Tue 9/1512:10 am -
3 stops50h 00m
Deal found 8/15$1,235
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:30 am -
1 stop38h 15m
Mon 10/2612:00 pm -
2 stops40h 40m
Deal found 8/16$1,244
This Trip.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:25 pm -
3 stops35h 50m
Thu 10/2212:10 am -
3 stops49h 25m
Deal found 8/17$1,249
This Philippine Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:35 am -
1 stop26h 30m
Mon 10/2610:30 pm -
1 stop41h 50m
Deal found 8/16$1,302
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:25 pm -
1 stop29h 20m
Wed 10/712:50 pm -
2 stops34h 15m
Deal found 8/16$1,356

Find flight deals from Perth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Perth (PER) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,152
(lol.travel)

One-way from

$623
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$1,305
Provider with most accurate pricing for Perth-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Perth-Seattle/Tacoma Intl flights.
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From Perth to Seattle/Tacoma Intl
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One-way flight from Perth to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Perth to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Perth to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Thu 9/10

5:35 am-3:15 pm

3 stops48h 40m

Seattle/Tacoma Intl

Fri 9/18

12:10 am-8:10 am

3 stops41h 00m

$1,221

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Mon 9/7

2:10 am-10:20 am

2 stops47h 10m

Seattle/Tacoma Intl

Tue 9/29

11:45 am-1:10 am

2 stops46h 25m

$1,690

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Wed 9/30

2:50 pm-10:40 am

2 stops34h 50m

Seattle/Tacoma Intl

Tue 10/6

1:15 am-3:45 am

2 stops35h 30m

$1,759

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Wed 9/9

3:50 pm-10:20 am

2 stops33h 30m

Seattle/Tacoma Intl

Tue 9/29

11:45 am-1:10 am

2 stops46h 25m

$1,811
Quickest round-trip

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Thu 10/8

10:30 am-11:03 pm

3 stops27h 33m

Seattle/Tacoma Intl

Fri 10/23

4:37 pm-12:30 pm

2 stops28h 53m

$1,904

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Fri 9/11

10:20 pm-1:25 pm

1 stop30h 05m

Seattle/Tacoma Intl

Thu 10/1

5:15 pm-5:35 pm

1 stop33h 20m

$2,052

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Sun 9/6

10:20 pm-1:25 pm

1 stop30h 05m

Seattle/Tacoma Intl

Tue 9/29

5:15 pm-5:35 pm

1 stop33h 20m

$2,321

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Thu 10/1

10:45 pm-9:59 pm

3 stops38h 14m

Seattle/Tacoma Intl

Thu 10/8

3:25 pm-2:40 pm

2 stops32h 15m

$2,472
Cheapest one-way

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Wed 10/21

6:25 pm-8:45 am

1 stop29h 20m

$623

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Thu 11/5

10:55 pm-6:26 pm

3 stops35h 31m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 18 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Perth-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Perth-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Perth-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Perth-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Perth-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Perth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Perth with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Perth to Seattle

What is the cheapest month to book a flight from Perth to Seattle?

Currently, February is the cheapest month in which you can book a flight from Perth to Seattle (average of $1,081). Flying from Perth to Seattle in March is currently the most expensive (average of $1,650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Perth to Seattle?

Airfare is typical for this route at the moment.

Perth to Seattle flights typically cost between $1,066 and $1,448 in October.
The cheapest round-trip price found within the last 5 days was $1,152 on Philippine Airlines (Oct 8-Oct 23).

Related info for your journey

Find useful and relevant information for your journey from Perth to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Perth to Seattle?

    There are many flights that can get you from Perth to Seattle in 47h 10m. Fly via Malaysia Airlines to get the fastest option. The distance from Perth to Seattle is about 9235 mi.

  • Can I find deals for flights from Perth to Seattle that include hotel bookings?

    Yes. In addition to deals on Perth to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Perth to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Perth to Seattle.

  • Can I find deals for business class flights from Perth to Seattle?

    Yes. Cheapflights offers flight deals from Perth to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Perth to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Perth to Seattle (average of $1,081). Flying from Perth to Seattle in March is currently the most expensive (average of $1,650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Lynnwood
Tumwater
Centralia
Puyallup
Marysville
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Poulsbo

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