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.

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 has the shortest travel time from Seattle to Perth?

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

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

United Airlines and Qantas Airways are the most popular carriers operating from Seattle/Tacoma Intl to Perth

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 August 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.

$553 Cheap Flights from Seattle to Perth in 2026

Find the cheapest flights from Seattle to Perth

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:55 am - 4:20 amSEA Seattle/Tacoma Intl-PER Perth

35h 25m2 stops Taipei City Taiwan Taoyuan Intl Singapore Changi

5:35 am - 7:45 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m2 stops Singapore Changi Taipei City Taiwan Taoyuan Intl

$1,202Multiple Airlines

Mon, Aug 31 - Tue, Sep 8

10:15 am - 4:20 amSEA Seattle/Tacoma Intl-PER Perth

27h 05m1 stop Singapore Changi

5:35 am - 8:10 amPER Perth-SEA Seattle/Tacoma Intl

41h 35m1 stop Singapore Changi

$1,217Multiple Airlines

Sun, Sep 27 - Sat, Oct 24

1:30 am - 4:20 amSEA Seattle/Tacoma Intl-PER Perth

35h 50m2 stops Taipei City Taiwan Taoyuan Intl Singapore Changi

5:35 am - 7:00 pmPER Perth-SEA Seattle/Tacoma Intl

28h 25m2 stops Singapore Changi Taipei City Taiwan Taoyuan Intl

$1,269Multiple Airlines

Mon, Sep 7 - Tue, Sep 15

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

35h 10m1 stop Doha Hamad Intl

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

29h 00m1 stop Doha Hamad Intl

$1,270Qatar Airways

Mon, Aug 17 - Mon, Sep 14

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

35h 10m1 stop Doha Hamad Intl

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

29h 00m1 stop Doha Hamad Intl

$1,271Qatar Airways

Mon, Aug 17 - Mon, Sep 14

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

35h 10m1 stop Doha Hamad Intl

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

29h 00m1 stop Doha Hamad Intl

$1,272Qatar Airways

Mon, Aug 17 - Mon, Sep 14

4:30 pm - 5:50 amSEA Seattle/Tacoma Intl-PER Perth

46h 20m2 stops Tokyo Haneda Kuala Lumpur Intl

9:10 pm - 7:10 amPER Perth-SEA Seattle/Tacoma Intl

26h 00m1 stop Singapore Changi

$1,287Multiple Airlines

Sun, Oct 18 - Mon, Nov 16

8:45 am - 11:55 pmSEA Seattle/Tacoma Intl-PER Perth

23h 10m1 stop Singapore Changi

6:40 am - 7:10 amPER Perth-SEA Seattle/Tacoma Intl

40h 30m1 stop Singapore Changi

$1,311Singapore Airlines

Sun, Nov 1 - Tue, Nov 17

10:15 am - 12:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 20m1 stop Singapore Changi

6:40 am - 7:10 amPER Perth-SEA Seattle/Tacoma Intl

40h 30m1 stop Singapore Changi

$1,311Singapore Airlines

Sat, Oct 24 - Tue, Nov 24

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

22h 40m1 stop Singapore Changi

6:40 am - 7:10 amPER Perth-SEA Seattle/Tacoma Intl

40h 30m1 stop Singapore Changi

$1,325Singapore Airlines

Sun, Oct 18 - Mon, Nov 16

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets

Qatar Airways

Aug 17

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 14

PER10:45 pmPerth

29h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,270

Qatar Airways

Aug 17

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 14

PER10:45 pmPerth

29h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,271

Qatar Airways

Aug 17

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 14

PER10:45 pmPerth

29h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,272

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets

Singapore Airlines

Oct 22

SEA10:15 amSeattle/Tacoma Intl

22h 40m

1 stop

PER11:55 pmPerth

Nov 24

PER5:05 pmPerth

30h 05m

1 stop

SEA7:10 amSeattle/Tacoma Intl

$1,290

Singapore Airlines

Oct 18

SEA10:15 amSeattle/Tacoma Intl

22h 40m

1 stop

PER11:55 pmPerth

Nov 16

PER6:40 amPerth

40h 30m

1 stop

SEA7:10 amSeattle/Tacoma Intl

$1,325

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 8/31

1:55 am-4:20 am

2 stops35h 25m

Perth

Tue 9/8

5:35 am-7:45 pm

2 stops29h 10m

$1,202

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 9/27

10:15 am-4:20 am

1 stop27h 05m

Perth

Sat 10/24

5:35 am-8:10 am

1 stop41h 35m

$1,217

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 9/7

1:30 am-4:20 am

2 stops35h 50m

Perth

Tue 9/15

5:35 am-7:00 pm

2 stops28h 25m

$1,269

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:45 pm

1 stop29h 00m

$1,270

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:45 pm

1 stop29h 00m

$1,271

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:45 pm

1 stop29h 00m

$1,272

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 10/18

4:30 pm-5:50 am

2 stops46h 20m

Perth

Mon 11/16

9:10 pm-7:10 am

1 stop26h 00m

$1,287

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 11/1

8:45 am-11:55 pm

1 stop23h 10m

Perth

Tue 11/17

6:40 am-7:10 am

1 stop40h 30m

$1,311

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 10/24

10:15 am-12:35 pm

1 stop35h 20m

Perth

Tue 11/24

6:40 am-7:10 am

1 stop40h 30m

$1,311

Quickest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 10/18

10:15 am-11:55 pm

1 stop22h 40m

Perth

Mon 11/16

6:40 am-7:10 am

1 stop40h 30m

$1,325

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 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 June is also very affordable. Most momondo users find prices during this month for around $1,231.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 14% 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

Fastest flight time	23h 10m
Direct flights	None

The fastest flight from Seattle to Perth takes 23h 10m

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 10m 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 August 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 (74% of total bookings). The next most popular airline is Qatar Airways (26%).

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 $1,172	Free Cancellation	Rating 8.2 1,584 reviews		Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,240	Free Cancellation	Rating 7.4 3,739 reviews		Search Qatar Airways flights

Rottnest Island

Fremantle

Mandurah

Scarborough

Waikiki

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.