How long is the flight from Seattle to Perth?

For as low as $1,926, Qatar Airways can have you in Perth from Seattle in 34h 55m. Seattle and Perth are separated by a distance of 14862 km.

In terms of precipitation, rainfall in Perth ranges from 0.0 - 170.0 inches per month. June is typically the wettest month, when rainfall can reach 170.0 mm. January is typically the driest time to visit Perth when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Perth, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 12.0 C).

What is the cheapest time of day to fly from SEA to PER?

When flying from Seattle to Perth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$685+ Cheap Flights from Seattle to Perth

Cheap flight deals from Seattle to Perth

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 23 September 2026.

Fri 25/923:10 -

1 stop41h 05m

Thu 8/1008:35 -

1 stop26h 30m

Deal found 19/9$1,693

Wed 18/1108:40 -

1 stop28h 45m

Tue 24/1113:50 -

1 stop33h 15m

Deal found 21/9$1,747

Mon 2/1115:40 -

2 stops46h 10m

Fri 20/1121:10 -

1 stop25h 55m

Deal found 20/9$1,787

Tue 29/911:45 -

1 stop43h 55m

Tue 27/1000:25 -

1 stop24h 20m

Deal found 22/9$1,799

Tue 29/923:10 -

2 stops42h 45m

Wed 28/1010:35 -

1 stop36h 30m

Deal found 22/9$1,806

Sun 25/1016:40 -

2 stops36h 15m

Tue 24/1110:35 -

1 stop36h 30m

Deal found 23/9$1,808

Tue 27/1016:40 -

2 stops36h 15m

Tue 24/1110:35 -

1 stop36h 30m

Deal found 23/9$1,812

Tue 29/911:45 -

1 stop43h 55m

Mon 26/1008:30 -

1 stop40h 15m

Deal found 22/9$1,832

Tue 27/1016:40 -

2 stops36h 15m

Sat 21/1117:50 -

1 stop29h 15m

Deal found 23/9$1,836

Find flight deals from Seattle to Perth

Round-trip from	$1,656
One-way from	$685
Popular in	November
Cheapest in	June
Average price	$2,560

Philippine Airlines
15/2-15/3
2 total stops
68h 00m total
Seattle to Perth

Search Deals

24/2-31/12
1 total stop
31h 45m total
Seattle to Perth

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($185 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 September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 22/2

21:30-07:20

1 stop41h 50m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$836

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 24/2

00:10-04:40

2 stops36h 30m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$849

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 7/11

20:09-19:55

3 stops55h 46m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$880

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 7/11

10:25-22:55

1 stop44h 30m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,019

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 22/2

17:59-19:55

3 stops33h 56m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,028

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 5/12

19:30-11:20

2 stops47h 50m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,073

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 23/2

15:51-14:30

3 stops54h 39m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,085

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 18/11

17:59-22:55

2 stops36h 56m

Perth

Tue 24/11

08:30-20:56

2 stops28h 26m

$1,905

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 11/10

06:10-06:50

2 stops33h 40m

Perth

Sun 25/10

08:30-09:45

1 stop40h 15m

$1,909

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 7/11

15:50-18:45

1 stop34h 55m

Perth

Sat 14/11

22:45-11:40

1 stop28h 55m

$1,926

Flights are sorted by cheapest return flights first.

Deals found on 22/9

Showing 1-10 of 19 resultsSorted by cheapest first

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.

SEA-PER

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.

Cheapflights Insights

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

How much does it cost for a return flight from Seattle to Perth?

Airfare is below average for this route at the moment.

Seattle to Perth flights typically cost between $2,185 and $2,436 in February.
The cheapest return price found within the last 5 days was $1,656 on Philippine Airlines (15 Feb–15 Mar).

Related info for your journey

How long is the flight from Seattle to Perth?
For as low as $1,926, Qatar Airways can have you in Perth from Seattle in 34h 55m. Seattle and Perth are separated by a distance of 14862 km.
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

Fremantle

Mandurah

Rottnest Island

Scarborough

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Western Australia

Flights by cabin class

Other flight options

Perth flight routes

Popular flights

Alternative routes for Seattle to Perth

Portland to Perth flights

Spokane to Perth flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Seattle to Perth from $685

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Perth

Cheapest flights from Seattle to PerthExplore 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 23 September 2026.

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 23 September 2026.

Best flights from Seattle to PerthDiscover carefully curated flight deals from Seattle to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Discover carefully curated flight deals from Seattle to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Last-minute flights from Seattle to PerthDiscover last-minute flight deals from Seattle to Perth. Data last updated 23 September 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Perth. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Seattle to PerthSearch for one-way flight options from Seattle to Perth. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Search for one-way flight options from Seattle to Perth. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Find flight deals from Seattle to Perth

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Perth that are best for you.

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.

Cheapflights Insights

How much does it cost for a return flight from Seattle to Perth?

Airfare is below average for this route at the moment.

Seattle to Perth flights typically cost between $2,185 and $2,436 in February.The cheapest return price found within the last 5 days was $1,656 on Philippine Airlines (15 Feb–15 Mar).

Related info for your journey

How long is the flight from Seattle to Perth?

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

How can I find direct flights from Seattle to Perth?

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

Travelling to a place near Perth?

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.

Complete your trip

Complete your trip to Perth by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Western Australia

Book a non-stop flight to one of these other cities located in Western Australia.

Search flights from Seattle to Perth by cabin class

Find flights from Seattle to Perth, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Seattle and Perth flights

Browse other Seattle and Perth flight options. Last updated on 23 September 2026.

Other flights to Perth

Explore flights to Perth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 23 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with flexibility

Travel Smart

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 23 September 2026.

Best flights from Seattle to Perth
Discover carefully curated flight deals from Seattle to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Last-minute flights from Seattle to Perth
Discover last-minute flight deals from Seattle to Perth. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Seattle to Perth
Search for one-way flight options from Seattle to Perth. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Seattle to Perth flights typically cost between $2,185 and $2,436 in February.
The cheapest return price found within the last 5 days was $1,656 on Philippine Airlines (15 Feb–15 Mar).