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 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.

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

Philippine Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Perth

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.

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.

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 September 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.

$517 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.

11:10 pm - 7:15 amSEA Seattle/Tacoma Intl-PER Perth

41h 05m1 stop Manila Ninoy Aquino Intl

8:35 am - 8:05 pmPER Perth-SEA Seattle/Tacoma Intl

26h 30m1 stop Manila Ninoy Aquino Intl

$1,191Philippine Airlines

Fri, Oct 9 - Thu, Oct 22

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

41h 50m1 stop Manila Ninoy Aquino Intl

8:35 am - 6:45 pmPER Perth-SEA Seattle/Tacoma Intl

26h 10m1 stop Manila Ninoy Aquino Intl

$1,237Philippine Airlines

Mon, Nov 9 - Mon, Nov 16

8:40 am - 12:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 55m1 stop Singapore Changi

5:05 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

30h 00m1 stop Singapore Changi

$1,249Singapore Airlines

Tue, Nov 10 - Tue, Nov 17

11:00 am - 4:25 pmSEA Seattle/Tacoma Intl-PER Perth

37h 25m2 stops Incheon Intl Ho Chi Minh City

5:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

29h 15m1 stop Singapore Changi

$1,264Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

11:00 am - 4:25 pmSEA Seattle/Tacoma Intl-PER Perth

37h 25m2 stops Incheon Intl Ho Chi Minh City

5:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

29h 15m1 stop Singapore Changi

$1,265Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

8:40 am - 5:25 amSEA Seattle/Tacoma Intl-PER Perth

28h 45m1 stop Singapore Changi

6:40 am - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

40h 25m1 stop Singapore Changi

$1,266Singapore Airlines

Tue, Dec 29 - Fri, Jan 29

8:40 am - 12:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 55m1 stop Singapore Changi

5:05 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

30h 00m1 stop Singapore Changi

$1,314Singapore Airlines

Sun, Nov 15 - Fri, Nov 20

11:31 am - 11:55 amSEA Seattle/Tacoma Intl-PER Perth

33h 24m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,463Qatar Airways

Sat, Mar 20 - Fri, Apr 16

11:31 am - 11:55 amSEA Seattle/Tacoma Intl-PER Perth

33h 24m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,464Qatar Airways

Sat, Mar 20 - Fri, Apr 16

11:31 am - 11:55 amSEA Seattle/Tacoma Intl-PER Perth

33h 24m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,465Qatar Airways

Sat, Mar 20 - Fri, Apr 16

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

8:30 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

40h 15m1 stop Hong Kong Intl

$1,279Cathay Pacific

Wed, Sep 30 - Sun, Nov 1

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,279Cathay Pacific

Tue, Sep 29 - Tue, Oct 27

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,280Cathay Pacific

Tue, Sep 29 - Tue, Oct 27

6:49 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

48h 51m2 stops Los Angeles Hong Kong Intl

8:30 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

40h 15m1 stop Hong Kong Intl

$1,323Cathay Pacific

Wed, Sep 30 - Sun, Nov 1

1:13 pm - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

42h 27m2 stops Los Angeles Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,323Cathay Pacific

Tue, Sep 29 - Tue, Oct 27

1:30 am - 8:55 amSEA Seattle/Tacoma Intl-PER Perth

40h 25m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

5:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

29h 15m1 stop Singapore Changi

$1,324Multiple Airlines

Tue, Sep 29 - Tue, Nov 3

1:13 pm - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

42h 27m2 stops Los Angeles Hong Kong Intl

8:30 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

40h 15m1 stop Hong Kong Intl

$1,324Cathay Pacific

Wed, Sep 30 - Sun, Nov 1

1:30 am - 8:55 amSEA Seattle/Tacoma Intl-PER Perth

40h 25m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

5:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

29h 15m1 stop Singapore Changi

$1,336Multiple Airlines

Tue, Sep 29 - Mon, Nov 2

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

10:45 pm - 12:40 pmPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$2,062Qatar Airways

Fri, Oct 2 - Fri, Oct 30

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

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

28h 55m1 stop Doha Hamad Intl

$2,062Qatar Airways

Fri, Oct 2 - Tue, Nov 3

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Philippine Airlines flights from Seattle to Perth

Our best Philippine Airlines deals on Seattle to Perth flight tickets

Philippine Airlines

Oct 9

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

Oct 22

PER8:35 amPerth

26h 30m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$1,191

Philippine Airlines

Nov 9

SEA9:30 pmSeattle/Tacoma Intl

41h 50m

1 stop

PER7:20 amPerth

Nov 16

PER8:35 amPerth

26h 10m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$1,237

Philippine Airlines

Nov 11

SEA9:30 pmSeattle/Tacoma Intl

41h 50m

1 stop

PER7:20 amPerth

Nov 26

PER8:35 amPerth

26h 10m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$1,352

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets

Singapore Airlines

Nov 10

SEA8:40 amSeattle/Tacoma Intl

35h 55m

1 stop

PER12:35 pmPerth

Nov 17

PER5:05 pmPerth

30h 00m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,249

Singapore Airlines

Dec 29

SEA8:40 amSeattle/Tacoma Intl

28h 45m

1 stop

PER5:25 amPerth

Jan 29

PER6:40 amPerth

40h 25m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,266

Singapore Airlines

Nov 15

SEA8:40 amSeattle/Tacoma Intl

35h 55m

1 stop

PER12:35 pmPerth

Nov 20

PER5:05 pmPerth

30h 00m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,314

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Fri 10/9

11:10 pm-7:15 am

1 stop41h 05m

Perth

Thu 10/22

8:35 am-8:05 pm

1 stop26h 30m

$1,191

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 11/9

9:30 pm-7:20 am

1 stop41h 50m

Perth

Mon 11/16

8:35 am-6:45 pm

1 stop26h 10m

$1,237

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 11/10

8:40 am-12:35 pm

1 stop35h 55m

Perth

Tue 11/17

5:05 pm-7:05 am

1 stop30h 00m

$1,249

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 11/10

11:00 am-4:25 pm

2 stops37h 25m

Perth

Tue 11/17

5:50 pm-7:05 am

1 stop29h 15m

$1,264

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 11/10

11:00 am-4:25 pm

2 stops37h 25m

Perth

Tue 11/17

5:50 pm-7:05 am

1 stop29h 15m

$1,265

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 12/29

8:40 am-5:25 am

1 stop28h 45m

Perth

Fri 1/29

6:40 am-7:05 am

1 stop40h 25m

$1,266

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 11/15

8:40 am-12:35 pm

1 stop35h 55m

Perth

Fri 11/20

5:05 pm-7:05 am

1 stop30h 00m

$1,314

Quickest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 3/20

11:31 am-11:55 am

2 stops33h 24m

Perth

Fri 4/16

10:45 pm-12:55 pm

1 stop29h 10m

$1,463

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 3/20

11:31 am-11:55 am

2 stops33h 24m

Perth

Fri 4/16

10:45 pm-12:55 pm

1 stop29h 10m

$1,464

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 3/20

11:31 am-11:55 am

2 stops33h 24m

Perth

Fri 4/16

10:45 pm-12:55 pm

1 stop29h 10m

$1,465

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 $1,287 to $1,402.
The lowest price recently found on this route was $1,191.

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 5% 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	$517
Fastest flight time	23h 25m
Direct flights	None

The best one-way flight to Perth from Seattle in the past 72 hours is $517. The best round-trip flight deal from Seattle to Perth found on momondo in the last 72 hours is $1,191.

The fastest flight from Seattle to Perth takes 23h 25m

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. 23h 25m 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 September 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 (77% of total bookings). The next most popular airline is Qatar Airways (23%).

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 1,617 reviews		Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,240	Free Cancellation	Rating 7.3 3,729 reviews		Search Qatar Airways flights

Fremantle

Mandurah

Rottnest Island

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.