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Cheap flights from Seattle to Perth from $764

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 30/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Perth

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Perth
Explore the most affordable flight options available from Seattle to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 August 2026.

Mon 17/816:25 -
1 stop35h 10m
Mon 14/922:45 -
1 stop29h 00m
Deal found 5/8$1,796
Thu 29/1009:45 -
1 stop23h 20m
Mon 30/1101:20 -
1 stop21h 50m
Deal found 8/8$1,806
Thu 22/1010:15 -
1 stop22h 40m
Tue 24/1117:05 -
1 stop30h 05m
Deal found 6/8$1,825
Mon 7/901:30 -
2 stops35h 50m
Tue 15/905:35 -
2 stops28h 25m
Deal found 6/8$1,834
Mon 26/1016:40 -
2 stops32h 20m
Mon 23/1121:10 -
1 stop26h 00m
Deal found 9/8$1,844
Sun 4/1001:15 -
2 stops45h 50m
Thu 22/1009:30 -
1 stop38h 15m
Deal found 8/8$1,846
Thu 29/1016:40 -
2 stops40h 05m
Mon 23/1121:10 -
1 stop26h 00m
Deal found 6/8$1,847
Wed 21/1016:30 -
2 stops36h 20m
Mon 23/1121:10 -
1 stop26h 00m
Deal found 9/8$1,849
Wed 21/1016:30 -
2 stops36h 20m
Tue 24/1121:10 -
1 stop26h 00m
Deal found 9/8$1,850
Mon 26/1016:40 -
2 stops32h 20m
Sat 21/1121:10 -
1 stop26h 00m
Deal found 9/8$1,851
Sun 4/1001:15 -
2 stops45h 50m
Mon 19/1018:25 -
1 stop29h 20m
Deal found 8/8$1,853

Find flight deals from Seattle to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Perth (PER). 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 10 August 2026.

Round-trip from

$1,806

One-way from

$764

Popular in

November

Cheapest in

June

Average price

$2,593
Singapore Airlines
  • Singapore Airlines
  • 29/10-30/11
  • 2 total stops
  • 45h 10m total
  • Seattle to Perth
Search Deals
30/11
  • 30/11
  • 3 total stops
  • 45h 35m total
  • Seattle to Perth
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($352 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Perth 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 647,157 searches. Data last updated 10 August 2026.
Use the filters below to find and compare flights from Seattle to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 24/1

15:50-18:45

1 stop34h 55m

Perth

Thu 18/2

22:45-11:40

1 stop28h 55m

$1,950

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 25/1

15:50-18:45

1 stop34h 55m

Perth

Mon 15/2

22:45-11:40

1 stop28h 55m

$1,950
Fastest return journey

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 14/9

17:02-13:35

2 stops29h 33m

Perth

Tue 22/9

23:55-12:25

2 stops27h 30m

$1,997

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 13/9

16:25-20:25

2 stops37h 00m

Perth

Sun 27/9

22:45-12:45

1 stop29h 00m

$1,997

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 21/10

10:44-14:40

2 stops36h 56m

Perth

Sun 22/11

22:30-14:39

2 stops32h 09m

$2,103

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 25/10

13:58-11:20

2 stops30h 22m

Perth

Mon 23/11

22:55-19:17

2 stops36h 22m

$2,112

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 27/10

17:23-14:45

2 stops30h 22m

Perth

Sun 22/11

22:30-16:27

2 stops33h 57m

$2,172

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 25/10

07:05-11:20

2 stops37h 15m

Perth

Sun 22/11

22:30-20:47

2 stops38h 17m

$2,174

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 13/9

15:25-12:30

2 stops30h 05m

Perth

Tue 29/9

23:45-18:44

2 stops33h 59m

$2,180

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 14/9

16:25-20:25

2 stops37h 00m

Perth

Tue 22/9

22:45-12:45

1 stop29h 00m

$2,223

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Seattle with our price prediction graph.
Estimated return 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.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Perth. 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 Seattle to Perth?

    For as low as $1,997, American Airlines can have you in Perth from Seattle in 29h 33m. Seattle and Perth are separated by a distance of 14862 km. This flight may include one or multiple stops.

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

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

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

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

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

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

See more FAQs

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Fremantle
Mandurah
Rottnest Island
Scarborough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Perth

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Perth flights
Spokane to Perth flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Perth?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Perth. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Perth?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Perth for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Perth with no change fees?

Certainly. Search results for flights to Perth from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Perth become cheaper?

Of course! You can now track prices for flights from Seattle to Perth and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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