Which layover airport has the shortest connection time from Seattle to Perth?

Singapore (SIN) has the shortest average layover time for this route: 1h 48m.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Perth?

Cathay Pacific and American Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Perth

Which layover airport has the shortest travel time from Seattle to Perth?

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 23h 10m.

Which layover airport offers the lowest fares from Seattle to Perth?

Flights via Singapore (SIN) offer the lowest average round-trip price of $1,291.

Which airport is the most popular layover for flights between Seattle and Perth?

Hong Kong (HKG) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Perth Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Perth Airport were last updated today.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Perth Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Perth Airport is 2 as of November 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Perth Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Perth Airport.

What documentation or ID do you need to fly to Perth Airport?

The travel and health documents you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$549 Cheap Flights from Seattle to Perth in 2026/27

Find the cheapest flights from Seattle to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 am - 12:05 amSEA Seattle/Tacoma Intl-PER Perth

47h 25m1 stop Singapore Changi

1:20 am - 8:05 amPER Perth-SEA Seattle/Tacoma Intl

21h 45m1 stop Singapore Changi

$1,153Singapore Airlines

Wed, Mar 3 - Tue, Mar 16

9:30 pm - 7:20 amSEA Seattle/Tacoma Intl-PER Perth

41h 50m1 stop Manila Ninoy Aquino Intl

8:40 am - 7:45 pmPER Perth-SEA Seattle/Tacoma Intl

26h 05m1 stop Manila Ninoy Aquino Intl

$1,173Philippine Airlines

Wed, Mar 3 - Thu, Mar 18

10:25 am - 9:45 pmSEA Seattle/Tacoma Intl-PER Perth

43h 20m2 stops Hong Kong Intl Denpasar Bali Ngurah Rai

7:25 am - 8:45 amPER Perth-SEA Seattle/Tacoma Intl

41h 20m2 stops Denpasar Bali Ngurah Rai Hong Kong Intl

$1,180Multiple Airlines

Tue, Feb 9 - Wed, Feb 17

10:15 am - 12:30 pmSEA Seattle/Tacoma Intl-PER Perth

59h 15m1 stop Singapore Changi

4:55 pm - 8:45 amPER Perth-SEA Seattle/Tacoma Intl

30h 50m1 stop Singapore Changi

$1,189Singapore Airlines

Sun, May 2 - Wed, May 5

9:30 pm - 7:20 amSEA Seattle/Tacoma Intl-PER Perth

41h 50m1 stop Manila Ninoy Aquino Intl

8:40 am - 7:45 pmPER Perth-SEA Seattle/Tacoma Intl

26h 05m1 stop Manila Ninoy Aquino Intl

$1,210Philippine Airlines

Mon, Mar 1 - Thu, Mar 18

10:15 am - 11:55 pmSEA Seattle/Tacoma Intl-PER Perth

46h 40m1 stop Singapore Changi

1:10 am - 8:45 amPER Perth-SEA Seattle/Tacoma Intl

22h 35m1 stop Singapore Changi

$1,233Singapore Airlines

Sun, May 2 - Wed, May 5

8:40 am - 12:05 amSEA Seattle/Tacoma Intl-PER Perth

23h 25m1 stop Singapore Changi

1:20 am - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

21h 45m1 stop Singapore Changi

$1,234Singapore Airlines

Tue, Feb 9 - Tue, Feb 16

3:50 pm - 6:45 pmSEA Seattle/Tacoma Intl-PER Perth

34h 55m1 stop Doha Hamad Intl

10:45 pm - 11:40 amPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,330Qatar Airways

Mon, Feb 8 - Tue, Feb 23

3:50 pm - 12:20 pmSEA Seattle/Tacoma Intl-PER Perth

28h 30m1 stop Doha Hamad Intl

10:45 pm - 11:40 amPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,332Qatar Airways

Sun, Jan 31 - Tue, Feb 23

3:50 pm - 12:20 pmSEA Seattle/Tacoma Intl-PER Perth

28h 30m1 stop Doha Hamad Intl

4:05 pm - 11:40 amPER Perth-SEA Seattle/Tacoma Intl

35h 35m1 stop Doha Hamad Intl

$1,333Qatar Airways

Sun, Jan 31 - Thu, Feb 25

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Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets

Singapore Airlines

Mar 3

SEA8:40 amSeattle/Tacoma Intl

47h 25m

1 stop

PER12:05 amPerth

Mar 16

PER1:20 amPerth

21h 45m

1 stop

SEA8:05 amSeattle/Tacoma Intl

$1,153

Singapore Airlines

May 2

SEA10:15 amSeattle/Tacoma Intl

59h 15m

1 stop

PER12:30 pmPerth

May 5

PER4:55 pmPerth

30h 50m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$1,189

Singapore Airlines

May 2

SEA10:15 amSeattle/Tacoma Intl

46h 40m

1 stop

PER11:55 pmPerth

May 5

PER1:10 amPerth

22h 35m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$1,233

Philippine Airlines flights from Seattle to Perth

Our best Philippine Airlines deals on Seattle to Perth flight tickets

Philippine Airlines

Mar 3

SEA9:30 pmSeattle/Tacoma Intl

41h 50m

1 stop

PER7:20 amPerth

Mar 18

PER8:40 amPerth

26h 05m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

$1,173

Philippine Airlines

Mar 1

SEA9:30 pmSeattle/Tacoma Intl

41h 50m

1 stop

PER7:20 amPerth

Mar 15

PER8:40 amPerth

26h 05m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

$1,210

Philippine Airlines

Mar 5

SEA9:30 pmSeattle/Tacoma Intl

41h 50m

1 stop

PER7:20 amPerth

Mar 18

PER8:40 amPerth

26h 05m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

$1,240

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 3/3

8:40 am-12:05 am

1 stop47h 25m

Perth

Tue 3/16

1:20 am-8:05 am

1 stop21h 45m

$1,153

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 3/3

9:30 pm-7:20 am

1 stop41h 50m

Perth

Thu 3/18

8:40 am-7:45 pm

1 stop26h 05m

$1,173

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 2/9

10:25 am-9:45 pm

2 stops43h 20m

Perth

Wed 2/17

7:25 am-8:45 am

2 stops41h 20m

$1,180

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 5/2

10:15 am-12:30 pm

1 stop59h 15m

Perth

Wed 5/5

4:55 pm-8:45 am

1 stop30h 50m

$1,189

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 3/1

9:30 pm-7:20 am

1 stop41h 50m

Perth

Thu 3/18

8:40 am-7:45 pm

1 stop26h 05m

$1,210

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 5/2

10:15 am-11:55 pm

1 stop46h 40m

Perth

Wed 5/5

1:10 am-8:45 am

1 stop22h 35m

$1,233

Quickest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 2/9

8:40 am-12:05 am

1 stop23h 25m

Perth

Tue 2/16

1:20 am-7:05 am

1 stop21h 45m

$1,234

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 2/8

3:50 pm-6:45 pm

1 stop34h 55m

Perth

Tue 2/23

10:45 pm-11:40 am

1 stop28h 55m

$1,330

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 1/31

3:50 pm-12:20 pm

1 stop28h 30m

Perth

Tue 2/23

10:45 pm-11:40 am

1 stop28h 55m

$1,332

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 1/31

3:50 pm-12:20 pm

1 stop28h 30m

Perth

Thu 2/25

4:05 pm-11:40 am

1 stop35h 35m

$1,333

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Seattle and Perth?

Prices are currently low for flights on this route.

Typical prices usually range from $1,570 to $1,934.
The lowest price recently found on this route was $1,153.

What is the cheapest month to fly to Perth?

In general, July is the cheapest month to fly from Seattle to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Perth during the month of July, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $0.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 9% on your flight if you consider stops on a Seattle to Perth flight.

How have Seattle to Perth flight prices changed over time?

When to book flights from Seattle to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Perth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Perth (SEA to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Perth

Best Price Found	$549
Fastest flight time	28h 05m
Direct flights	None

The best one-way flight to Perth from Seattle in the past 72 hours is $549. The best round-trip flight deal from Seattle to Perth found on momondo in the last 72 hours is $1,153.

The fastest flight from Seattle to Perth takes 28h 05m

There are no direct flights from Seattle to Perth. There are no popular flight routes from Seattle to Perth.

Search flight deals

Frequently asked questions about flying from Seattle to Perth

How far is Seattle/Tacoma Intl to Perth by plane?
There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 28h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Perth Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Perth Airport were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Perth Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Perth Airport is 2 as of November 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Perth Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Perth Airport.
What documentation or ID do you need to fly to Perth Airport?
The travel and health documents you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Perth?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Perth is Singapore Airlines (82% of total bookings). The next most popular airline is Qatar Airways (18%).

Best airlines flying from Seattle to Perth

Compare and see reviews for airlines that fly from Seattle to Perth with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $1,232	Free Cancellation	Rating 8.2 1,632 reviews		Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,240	Free Cancellation	Rating 7.4 3,706 reviews		Search Qatar Airways flights

Mandurah

Rottnest Island

Fremantle

Scarborough

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Perth?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Perth. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Perth with flexible booking policies on momondo?

Flights from Seattle to Perth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Perth?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Perth from Seattle.

I’m not ready to book a flight from Seattle to Perth right now. Can momondo alert me if prices change?

Price alerts on flights to Perth from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.