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

Qantas Airways and American Airlines are the most popular carriers 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.

$864 Cheap Flights from Perth to Seattle in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,692 to $1,519. The lowest price recently found on this route was $1,205.

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Find the cheapest flights from Perth to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 10:50 am

PER

SEA

25h 40m

2 stops

1:15 pm - 6:50 am

SEA

PER

26h 35m

2 stops

$1,205Japan Airlines

Sat, Aug 8 - Tue, Sep 15

12:10 am - 10:50 am

PER

SEA

25h 40m

2 stops

1:15 pm - 6:50 am

SEA

PER

26h 35m

2 stops

$1,210Japan Airlines

Sat, Aug 8 - Tue, Sep 15

12:10 am - 10:50 am

PER

SEA

25h 40m

2 stops

1:25 pm - 10:40 pm

SEA

PER

42h 15m

2 stops

$1,309Japan Airlines

Wed, Jul 22 - Sun, Aug 2

8:35 am - 8:05 pm

PER

SEA

26h 30m

1 stop

11:10 pm - 7:15 am

SEA

PER

41h 05m

1 stop

$1,341Philippine Airlines

Thu, Sep 10 - Fri, Oct 9

12:10 am - 10:35 am

PER

SEA

25h 25m

2 stops

1:25 pm - 10:40 pm

SEA

PER

42h 15m

2 stops

$1,361Japan Airlines

Sun, May 24 - Mon, Jun 1

12:10 am - 10:35 am

PER

SEA

25h 25m

2 stops

1:25 pm - 10:40 pm

SEA

PER

42h 15m

2 stops

$1,376Japan Airlines

Thu, May 28 - Fri, Jun 5

10:30 am - 12:56 pm

PER

SEA

41h 26m

2 stops

4:28 pm - 7:10 pm

SEA

PER

35h 42m

2 stops

$1,428Qantas Airways

Mon, May 18 - Wed, May 27

10:30 am - 7:53 pm

PER

SEA

24h 23m

2 stops

5:31 pm - 1:35 pm

SEA

PER

29h 04m

2 stops

$1,443Qantas Airways

Tue, May 5 - Sat, May 30

10:30 am - 9:07 pm

PER

SEA

25h 37m

2 stops

5:28 pm - 11:15 am

SEA

PER

26h 47m

2 stops

$1,463Qantas Airways

Thu, May 28 - Thu, Jun 4

12:10 am - 10:35 am

PER

SEA

25h 25m

2 stops

1:15 pm - 10:40 pm

SEA

PER

42h 25m

2 stops

$1,468Japan Airlines

Sat, May 23 - Sun, May 31

Qantas Airways flights from Perth to Seattle

Our best Qantas Airways deals on Perth to Seattle flight tickets

Qantas Airways

May 18

PER10:30 amPerth

41h 26m

2 stops

SEA12:56 pmSeattle/Tacoma Intl

May 27

SEA4:28 pmSeattle/Tacoma Intl

35h 42m

2 stops

PER7:10 pmPerth

$1,428

Qantas Airways

May 5

PER10:30 amPerth

24h 23m

2 stops

SEA7:53 pmSeattle/Tacoma Intl

May 30

SEA5:31 pmSeattle/Tacoma Intl

29h 04m

2 stops

PER1:35 pmPerth

$1,443

Qantas Airways

May 28

PER10:30 amPerth

25h 37m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

Jun 4

SEA5:28 pmSeattle/Tacoma Intl

26h 47m

2 stops

PER11:15 amPerth

$1,463

Philippine Airlines flights from Perth to Seattle

Our best Philippine Airlines deals on Perth to Seattle flight tickets

Philippine Airlines

Sep 10

PER8:35 amPerth

26h 30m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Oct 9

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

$1,341

Philippine Airlines

Sep 10

PER8:35 amPerth

26h 30m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Oct 9

SEA11:10 pmSeattle/Tacoma Intl

41h 05m

1 stop

PER7:15 amPerth

$1,840

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 8/8

12:10 am-10:50 am

2 stops25h 40m

Seattle/Tacoma Intl

Tue 9/15

1:15 pm-6:50 am

2 stops26h 35m

$1,205

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 8/8

12:10 am-10:50 am

2 stops25h 40m

Seattle/Tacoma Intl

Tue 9/15

1:15 pm-6:50 am

2 stops26h 35m

$1,210

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 7/22

12:10 am-10:50 am

2 stops25h 40m

Seattle/Tacoma Intl

Sun 8/2

1:25 pm-10:40 pm

2 stops42h 15m

$1,309

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 9/10

8:35 am-8:05 pm

1 stop26h 30m

Seattle/Tacoma Intl

Fri 10/9

11:10 pm-7:15 am

1 stop41h 05m

$1,341

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 5/24

12:10 am-10:35 am

2 stops25h 25m

Seattle/Tacoma Intl

Mon 6/1

1:25 pm-10:40 pm

2 stops42h 15m

$1,361

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 5/28

12:10 am-10:35 am

2 stops25h 25m

Seattle/Tacoma Intl

Fri 6/5

1:25 pm-10:40 pm

2 stops42h 15m

$1,376

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 5/18

10:30 am-12:56 pm

2 stops41h 26m

Seattle/Tacoma Intl

Wed 5/27

4:28 pm-7:10 pm

2 stops35h 42m

$1,428

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 5/5

10:30 am-7:53 pm

2 stops24h 23m

Seattle/Tacoma Intl

Sat 5/30

5:31 pm-1:35 pm

2 stops29h 04m

$1,443

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 5/28

10:30 am-9:07 pm

2 stops25h 37m

Seattle/Tacoma Intl

Thu 6/4

5:28 pm-11:15 am

2 stops26h 47m

$1,463

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 5/23

12:10 am-10:35 am

2 stops25h 25m

Seattle/Tacoma Intl

Sun 5/31

1:15 pm-10:40 pm

2 stops42h 25m

$1,468

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

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 $1,342 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 $1,215 on momondo.

Can stopping save me money on Perth to Seattle flights?

You could potentially save up to 19% 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 April 2026, prices for Perth to Seattle flights are approximately 2% cheaper 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	24h 23m
Direct flights	None

The fastest flight from Perth to Seattle takes 24h 23m

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

Search flight deals

Frequently asked questions about flying from Perth to Seattle

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 24h 23m, 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

Lakewood

Tukwila

Puyallup

Cle Elum

Federal Way

Centralia

Fife

Westport

Shoreline

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.