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

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

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

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Perth Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$637 Cheap Flights from Perth to Seattle in 2026

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Find the cheapest flights from Perth to Seattle

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One-way

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Cheap round-trip flights

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8:35 am - 8:05 pm

PER

SEA

26h 30m

1 stop

11:10 pm - 7:15 am

SEA

PER

41h 05m

1 stop

$886Philippine Airlines

Thu, Sep 3 - Fri, Sep 18

8:35 am - 8:05 pm

PER

SEA

26h 30m

1 stop

11:10 pm - 7:15 am

SEA

PER

41h 05m

1 stop

$1,016Philippine Airlines

Thu, Aug 27 - Fri, Sep 25

5:35 am - 7:00 pm

PER

SEA

28h 25m

2 stops

1:30 am - 8:10 am

SEA

PER

39h 40m

2 stops

$1,133Multiple Airlines

Sat, Sep 5 - Fri, Sep 18

5:35 am - 4:10 pm

PER

SEA

25h 35m

2 stops

1:15 am - 4:20 am

SEA

PER

36h 05m

2 stops

$1,142Multiple Airlines

Thu, Apr 23 - Wed, Apr 29

5:35 am - 7:45 pm

PER

SEA

29h 10m

2 stops

1:15 am - 4:20 am

SEA

PER

36h 05m

2 stops

$1,202Multiple Airlines

Sat, Aug 29 - Thu, Sep 24

1:10 am - 8:45 am

PER

SEA

22h 35m

1 stop

10:15 am - 12:30 pm

SEA

PER

35h 15m

1 stop

$1,213Singapore Airlines

Fri, Sep 4 - Sat, Sep 19

10:30 am - 7:53 pm

PER

SEA

24h 23m

2 stops

10:00 am - 5:00 pm

SEA

PER

40h 00m

2 stops

$1,228Qantas Airways

Wed, Apr 29 - Wed, May 6

8:35 am - 8:05 pm

PER

SEA

26h 30m

1 stop

11:10 pm - 7:15 am

SEA

PER

41h 05m

1 stop

$1,248Philippine Airlines

Thu, Apr 30 - Wed, May 6

11:45 pm - 10:52 pm

PER

SEA

38h 07m

2 stops

7:06 pm - 5:00 pm

SEA

PER

30h 54m

2 stops

$1,261Qantas Airways

Mon, Apr 27 - Tue, May 12

10:00 am - 10:58 pm

PER

SEA

27h 58m

2 stops

2:10 pm - 1:35 pm

SEA

PER

32h 25m

2 stops

$1,273American Airlines

Mon, Apr 20 - Mon, Apr 27

Japan Airlines flights from Perth to Seattle

Our best Japan Airlines deals on Perth to Seattle flight tickets

Japan Airlines

May 10

PER12:10 amPerth

25h 25m

2 stops

SEA10:35 amSeattle/Tacoma Intl

May 28

SEA1:15 pmSeattle/Tacoma Intl

26h 35m

2 stops

PER6:50 amPerth

$1,340

Japan Airlines

May 10

PER12:10 amPerth

25h 25m

2 stops

SEA10:35 amSeattle/Tacoma Intl

May 28

SEA1:15 pmSeattle/Tacoma Intl

26h 35m

2 stops

PER6:50 amPerth

$1,343

Japan Airlines

May 11

PER12:15 pmPerth

37h 20m

2 stops

SEA10:35 amSeattle/Tacoma Intl

May 28

SEA1:15 pmSeattle/Tacoma Intl

42h 25m

2 stops

PER10:40 pmPerth

$1,378

Philippine Airlines flights from Perth to Seattle

Our best Philippine Airlines deals on Perth to Seattle flight tickets

Philippine Airlines

Sep 3

PER8:35 amPerth

26h 30m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 18

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

$886

Philippine Airlines

Aug 27

PER8:35 amPerth

26h 30m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 25

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

$1,016

Philippine Airlines

Mar 19

PER8:40 amPerth

26h 00m

1 stop

SEA7:40 pmSeattle/Tacoma Intl

Apr 1

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

$1,200

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 9/3

8:35 am-8:05 pm

1 stop26h 30m

Seattle/Tacoma Intl

Fri 9/18

11:10 pm-7:15 am

1 stop41h 05m

$886

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 8/27

8:35 am-8:05 pm

1 stop26h 30m

Seattle/Tacoma Intl

Fri 9/25

11:10 pm-7:15 am

1 stop41h 05m

$1,016

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 9/5

5:35 am-7:00 pm

2 stops28h 25m

Seattle/Tacoma Intl

Fri 9/18

1:30 am-8:10 am

2 stops39h 40m

$1,133

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 4/23

5:35 am-4:10 pm

2 stops25h 35m

Seattle/Tacoma Intl

Wed 4/29

1:15 am-4:20 am

2 stops36h 05m

$1,142

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 8/29

5:35 am-7:45 pm

2 stops29h 10m

Seattle/Tacoma Intl

Thu 9/24

1:15 am-4:20 am

2 stops36h 05m

$1,202

Quickest round-trip

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 9/4

1:10 am-8:45 am

1 stop22h 35m

Seattle/Tacoma Intl

Sat 9/19

10:15 am-12:30 pm

1 stop35h 15m

$1,213

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 4/29

10:30 am-7:53 pm

2 stops24h 23m

Seattle/Tacoma Intl

Wed 5/6

10:00 am-5:00 pm

2 stops40h 00m

$1,228

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 4/30

8:35 am-8:05 pm

1 stop26h 30m

Seattle/Tacoma Intl

Wed 5/6

11:10 pm-7:15 am

1 stop41h 05m

$1,248

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 4/27

11:45 pm-10:52 pm

2 stops38h 07m

Seattle/Tacoma Intl

Tue 5/12

7:06 pm-5:00 pm

2 stops30h 54m

$1,261

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 4/20

10:00 am-10:58 pm

2 stops27h 58m

Seattle/Tacoma Intl

Mon 4/27

2:10 pm-1:35 pm

2 stops32h 25m

$1,273

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 Perth to Seattle

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

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Perth to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $923. If you don’t want to visit Seattle in February, then you should wait until September to fly from Perth, when ticket prices are also cheap, with an average price of $1,103.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Perth when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,312 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Perth for as low as $1,163 on momondo.

Can stopping save me money on Perth to Seattle flights?

You could potentially save up to 26% on your flight if you consider stops on a Perth to Seattle flight.

How have Perth to Seattle flight prices changed over time?

As of March 2026, prices for Perth to Seattle flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Perth to Seattle

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

Estimated round-trip price

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

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

Fastest flight time	30h 37m
Direct flights	None

The fastest flight from Perth to Seattle takes 30h 37m

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

Search flight deals

How far is Perth to Seattle/Tacoma Intl by plane?
Perth and Seattle/Tacoma Intl are 9239.1 mi apart from one another. Flights usually cover this in 30h 37m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Perth Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Perth Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Perth Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Perth Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Redmond

Marysville

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Fife

Westport

Centralia

Kirkland

Tumwater

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Perth to Seattle for you.

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

Flights from Perth to Seattle 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 Perth to Seattle?

momondo helps you find the best flight between Perth and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Perth to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.