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

Doha (DOH) has the shortest average layover time for this route: 5h 55m.

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

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

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

Flights via Singapore (SIN) offer the lowest average round-trip price of $1,290.

What airlines fly to Perth?

Singapore Airlines, Qatar Airways and Qantas Airways are the top three most popular airlines that fly to Perth from Seattle according to our data. Singapore Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Perth. Keep in mind that there are 3 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.

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: 25h 18m.

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 3 as of November 2025.

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.

$771 Cheap Flights from Seattle to Perth in 2025/26

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8:45 am - 12:35 pmSEA-PER

35h 50m1 stop

5:05 pm - 8:10 amPER-SEA

30h 05m1 stop

$1,089Singapore Airlines

Find Deal

Thu, Feb 19 - Wed, Mar 11

9:45 am - 11:55 pmSEA-PER

23h 10m1 stop

1:50 pm - 8:10 amPER-SEA

33h 20m1 stop

$1,175Singapore Airlines

Find Deal

Sat, Mar 14 - Fri, Mar 20

8:45 am - 12:35 pmSEA-PER

35h 50m1 stop

1:15 am - 8:10 amPER-SEA

45h 55m1 stop

$1,184Singapore Airlines

Find Deal

Thu, Feb 19 - Tue, Mar 10

9:45 am - 11:55 pmSEA-PER

23h 10m1 stop

1:15 am - 8:10 amPER-SEA

21h 55m1 stop

$1,203Singapore Airlines

Find Deal

Sat, Mar 14 - Thu, Mar 19

8:45 am - 5:40 amSEA-PER

28h 55m2 stops

5:35 am - 7:10 pmPER-SEA

28h 35m2 stops

$1,235Multiple Airlines

Find Deal

Sun, Mar 1 - Sun, Mar 15

4:50 pm - 10:55 pmSEA-PER

38h 05m2 stops

12:25 am - 10:36 pmPER-SEA

37h 11m2 stops

$1,244Cathay Pacific

Find Deal

Thu, Feb 19 - Tue, Mar 10

7:55 pm - 10:55 pmSEA-PER

35h 00m2 stops

8:30 am - 10:44 amPER-SEA

41h 14m2 stops

$1,246Cathay Pacific

Find Deal

Sun, Mar 1 - Sun, Mar 15

8:45 am - 5:40 amSEA-PER

28h 55m2 stops

8:40 pm - 4:05 pmPER-SEA

34h 25m3 stops

$1,250Multiple Airlines

Find Deal

Sun, Mar 1 - Sun, Mar 15

8:45 am - 2:45 pmSEA-PER

38h 00m1 stop

1:15 am - 8:10 amPER-SEA

21h 55m1 stop

$1,279Singapore Airlines

Find Deal

Sun, Mar 1 - Sat, Mar 14

7:55 pm - 10:55 pmSEA-PER

35h 00m2 stops

12:25 am - 9:31 amPER-SEA

48h 06m2 stops

$1,296Cathay Pacific

Find Deal

Sun, Mar 1 - Sat, Mar 14

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets

Qatar Airways

Mar 15

SEA5:05 pmSeattle/Tacoma Intl

34h 40m

1 stop

PER6:45 pmPerth

Apr 5

PER10:45 pmPerth

29h 00m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,321

Find similar

Qatar Airways

Feb 19

SEA8:15 amSeattle/Tacoma Intl

35h 40m

2 stops

PER11:55 amPerth

Mar 11

PER10:45 pmPerth

28h 55m

1 stop

SEA12:40 pmSeattle/Tacoma Intl

$1,330

Find similar

Qatar Airways

Mar 14

SEA8:15 amSeattle/Tacoma Intl

36h 40m

2 stops

PER11:55 amPerth

Mar 20

PER10:45 pmPerth

28h 55m

1 stop

SEA12:40 pmSeattle/Tacoma Intl

$1,369

Find similar

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets

Singapore Airlines

Feb 19

SEA8:45 amSeattle/Tacoma Intl

35h 50m

1 stop

PER12:35 pmPerth

Mar 11

PER5:05 pmPerth

30h 05m

1 stop

SEA8:10 amSeattle/Tacoma Intl

$1,089

Find similar

Singapore Airlines

Mar 14

SEA9:45 amSeattle/Tacoma Intl

23h 10m

1 stop

PER11:55 pmPerth

Mar 20

PER1:50 pmPerth

33h 20m

1 stop

SEA8:10 amSeattle/Tacoma Intl

$1,175

Find similar

Singapore Airlines

Feb 19

SEA8:45 amSeattle/Tacoma Intl

35h 50m

1 stop

PER12:35 pmPerth

Mar 10

PER1:15 amPerth

45h 55m

1 stop

SEA8:10 amSeattle/Tacoma Intl

$1,184

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 2/19

8:45 am-12:35 pm

1 stop35h 50m

Perth

Wed 3/11

5:05 pm-8:10 am

1 stop30h 05m

$1,089

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 3/14

9:45 am-11:55 pm

1 stop23h 10m

Perth

Fri 3/20

1:50 pm-8:10 am

1 stop33h 20m

$1,175

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 2/19

8:45 am-12:35 pm

1 stop35h 50m

Perth

Tue 3/10

1:15 am-8:10 am

1 stop45h 55m

$1,184

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 3/14

9:45 am-11:55 pm

1 stop23h 10m

Perth

Thu 3/19

1:15 am-8:10 am

1 stop21h 55m

$1,203

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/1

8:45 am-5:40 am

2 stops28h 55m

Perth

Sun 3/15

5:35 am-7:10 pm

2 stops28h 35m

$1,235

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 2/19

4:50 pm-10:55 pm

2 stops38h 05m

Perth

Tue 3/10

12:25 am-10:36 pm

2 stops37h 11m

$1,244

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/1

7:55 pm-10:55 pm

2 stops35h 00m

Perth

Sun 3/15

8:30 am-10:44 am

2 stops41h 14m

$1,246

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/1

8:45 am-5:40 am

2 stops28h 55m

Perth

Sun 3/15

8:40 pm-4:05 pm

3 stops34h 25m

$1,250

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/1

8:45 am-2:45 pm

1 stop38h 00m

Perth

Sat 3/14

1:15 am-8:10 am

1 stop21h 55m

$1,279

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/1

7:55 pm-10:55 pm

2 stops35h 00m

Perth

Sat 3/14

12:25 am-9:31 am

2 stops48h 06m

$1,296

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Showing 1-10 of 15 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, September 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 $1,290. If you are unable to visit Perth during the month of September, then departing from Seattle during the month November is also very affordable. Most momondo users find prices during this month for around $1,302.

What is the cheapest day to depart on your flight to Perth?

The cheapest day to depart on your flight to Perth is on a Sunday when prices can be found for as low as $1,482. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Perth is Friday, with ticket prices averaging around $1,858.

What is the cheapest time of day to depart on your flight to Perth?

In the evening is the cheapest time of day to fly from Seattle to Perth when you can find flight prices for as low as $1,497. Flying to Perth in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,690. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 23% on your flight if you consider stops on a Seattle to Perth flight.

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

Direct flights	None

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

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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 3 as of November 2025.
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 (63% of total bookings). The next most popular airlines are Qatar Airways (21%) and Qantas Airways (16%).

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 $1,239	Free Cancellation	Rating 8.1 1,400 reviews	Search Singapore Airlines flights
Qantas Airways	PriceFrom $1,258	Free Cancellation	Rating 7.5 933 reviews	Search Qantas Airways flights
Qatar Airways	PriceFrom $1,307	Free Cancellation	Rating 7.4 3,661 reviews	Search Qatar Airways flights

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Fremantle

Rottnest Island

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.

An easier way to manage your Perth trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Seattle to Perth from $771

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Perth departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Cheap round-trip flights

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Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets

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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

What is the cheapest month to fly to Perth?

What is the cheapest day to depart on your flight to Perth?

The cheapest day to depart on your flight to Perth is on a Sunday when prices can be found for as low as $1,482. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Perth is Friday, with ticket prices averaging around $1,858.

What is the cheapest time of day to depart on your flight to Perth?

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 23% on your flight if you consider stops on a Seattle to Perth flight.

What airlines fly to Perth?

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

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

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

Flights via Singapore (SIN) offer the lowest average round-trip price of $1,290.

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: 25h 18m.

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

Doha (DOH) has the shortest average layover time for this route: 5h 55m.

When to book flights from Seattle to Perth

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

Direct flights

How far is Seattle/Tacoma Intl to Perth by plane?

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

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

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

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

What is the most popular airline from Seattle to Perth?

Best airlines flying from Seattle to Perth

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

Traveling to a place near Perth?

Why use momondo?

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

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

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

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

An easier way to manage your Perth trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing Western Australia