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

Japan Airlines, United Airlines, and Qatar Airways 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 many operators does momondo search for flights from Perth Airport to Seattle/Tacoma Intl Airport?

As of September 2025, there is 1 operator available to choose from for flights from Perth Airport to Seattle/Tacoma Intl Airport.

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.

$715 Cheap Flights from Perth to Seattle in 2025/26

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Find the cheapest flights from Perth to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

10:30 am - 10:50 amPER-SEA

39h 20m2 stops

12:10 pm - 11:55 pmSEA-PER

43h 45m2 stops

$954Japan Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

10:30 am - 9:50 amPER-SEA

39h 20m2 stops

12:10 pm - 11:55 pmSEA-PER

43h 45m2 stops

$956Japan Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

10:30 am - 9:50 amPER-SEA

39h 20m2 stops

12:10 pm - 11:55 pmSEA-PER

43h 45m2 stops

$957Japan Airlines

Find Deal

Thu, Nov 20 - Mon, Nov 24

5:35 am - 9:23 amPER-SEA

42h 48m2 stops

7:00 am - 4:20 amSEA-PER

29h 20m2 stops

$1,051Multiple Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 8

5:35 am - 6:30 pmPER-SEA

27h 55m2 stops

12:10 am - 4:20 amSEA-PER

36h 10m2 stops

$1,083Multiple Airlines

Find Deal

Sat, Nov 1 - Fri, Nov 7

1:15 am - 7:10 amPER-SEA

21h 55m1 stop

8:45 am - 12:35 pmSEA-PER

35h 50m1 stop

$1,184Singapore Airlines

Find Deal

Thu, Jan 29 - Tue, Feb 17

9:55 pm - 1:20 pmPER-SEA

31h 25m1 stop

5:20 pm - 8:10 pmSEA-PER

58h 50m2 stops

$1,212ANA

Find Deal

Fri, Jan 30 - Tue, Feb 17

6:40 am - 7:10 amPER-SEA

40h 30m1 stop

8:45 am - 12:35 pmSEA-PER

35h 50m1 stop

$1,235Singapore Airlines

Find Deal

Fri, Jan 30 - Tue, Feb 17

9:55 pm - 1:20 pmPER-SEA

31h 25m1 stop

3:45 pm - 8:10 pmSEA-PER

36h 25m1 stop

$1,330ANA

Find Deal

Fri, Jan 30 - Tue, Feb 17

10:30 pm - 12:59 amPER-SEA

42h 29m2 stops

8:00 am - 2:30 pmSEA-PER

62h 30m3 stops

$1,343United Airlines

Find Deal

Mon, Jan 12 - Mon, Feb 2

Japan Airlines flights from Perth to Seattle

Our best Japan Airlines deals on Perth to Seattle flight tickets

Japan Airlines

Oct 30

PER10:30 amPerth

39h 20m

2 stops

SEA10:50 amSeattle/Tacoma Intl

Nov 6

SEA12:10 pmSeattle/Tacoma Intl

43h 45m

2 stops

PER11:55 pmPerth

$954

Find similar

Japan Airlines

Nov 20

PER10:30 amPerth

39h 20m

2 stops

SEA9:50 amSeattle/Tacoma Intl

Nov 24

SEA12:10 pmSeattle/Tacoma Intl

43h 45m

2 stops

PER11:55 pmPerth

$956

Find similar

Japan Airlines

Nov 20

PER10:30 amPerth

39h 20m

2 stops

SEA9:50 amSeattle/Tacoma Intl

Nov 24

SEA12:10 pmSeattle/Tacoma Intl

43h 45m

2 stops

PER11:55 pmPerth

$957

Find similar

Singapore Airlines flights from Perth to Seattle

Our best Singapore Airlines deals on Perth to Seattle flight tickets

Singapore Airlines

Jan 29

PER1:15 amPerth

21h 55m

1 stop

SEA7:10 amSeattle/Tacoma Intl

Feb 17

SEA8:45 amSeattle/Tacoma Intl

35h 50m

1 stop

PER12:35 pmPerth

$1,184

Find similar

Singapore Airlines

Jan 30

PER6:40 amPerth

40h 30m

1 stop

SEA7:10 amSeattle/Tacoma Intl

Feb 17

SEA8:45 amSeattle/Tacoma Intl

35h 50m

1 stop

PER12:35 pmPerth

$1,235

Find similar

Singapore Airlines

Oct 30

PER5:05 pmPerth

30h 05m

1 stop

SEA8:10 amSeattle/Tacoma Intl

Nov 6

SEA8:45 amSeattle/Tacoma Intl

35h 50m

1 stop

PER12:35 pmPerth

$1,246

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 10/30

10:30 am-10:50 am

2 stops39h 20m

Seattle/Tacoma Intl

Thu 11/6

12:10 pm-11:55 pm

2 stops43h 45m

$954

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 11/20

10:30 am-9:50 am

2 stops39h 20m

Seattle/Tacoma Intl

Mon 11/24

12:10 pm-11:55 pm

2 stops43h 45m

$956

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 11/20

10:30 am-9:50 am

2 stops39h 20m

Seattle/Tacoma Intl

Mon 11/24

12:10 pm-11:55 pm

2 stops43h 45m

$957

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 11/1

5:35 am-9:23 am

2 stops42h 48m

Seattle/Tacoma Intl

Sat 11/8

7:00 am-4:20 am

2 stops29h 20m

$1,051

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 11/1

5:35 am-6:30 pm

2 stops27h 55m

Seattle/Tacoma Intl

Fri 11/7

12:10 am-4:20 am

2 stops36h 10m

$1,083

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 1/29

1:15 am-7:10 am

1 stop21h 55m

Seattle/Tacoma Intl

Tue 2/17

8:45 am-12:35 pm

1 stop35h 50m

$1,184

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 1/30

9:55 pm-1:20 pm

1 stop31h 25m

Seattle/Tacoma Intl

Tue 2/17

5:20 pm-8:10 pm

2 stops58h 50m

$1,212

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 1/30

6:40 am-7:10 am

1 stop40h 30m

Seattle/Tacoma Intl

Tue 2/17

8:45 am-12:35 pm

1 stop35h 50m

$1,235

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 1/30

9:55 pm-1:20 pm

1 stop31h 25m

Seattle/Tacoma Intl

Tue 2/17

3:45 pm-8:10 pm

1 stop36h 25m

$1,330

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 1/12

10:30 pm-12:59 am

2 stops42h 29m

Seattle/Tacoma Intl

Mon 2/2

8:00 am-2:30 pm

3 stops62h 30m

$1,343

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, September 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 $1,138. If you don’t want to visit Seattle in September, then you should wait until October to fly from Perth, when ticket prices are also cheap, with an average price of $1,177.

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 $1,332 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 $1,119 on momondo.

How have Perth to Seattle flight prices changed over time?

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

Direct flights	None

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

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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 21h 55m, 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 many operators does momondo search for flights from Perth Airport to Seattle/Tacoma Intl Airport?
As of September 2025, there is 1 operator available to choose from for flights from Perth Airport to Seattle/Tacoma Intl Airport.
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.
What is the most popular airline from Perth to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Perth to Seattle is Singapore Airlines (100% of total bookings).

Best airlines flying from Perth to Seattle

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

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $1,070	Free Cancellation	Rating 8.1 1,367 reviews		Search Singapore Airlines flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

Redmond

Westport

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.