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

Qantas Airways 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 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.

$757 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 $1,380 to $1,218. The lowest price recently found on this route was $1,272.

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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

Enter your travel dates to find the best prices.

12:10 am - 10:50 am

PER

SEA

25h 40m

2 stops

1:25 pm - 6:50 am

SEA

PER

26h 25m

2 stops

$1,272Japan Airlines

Mon, Aug 3 - Tue, Aug 25

5:35 am - 10:40 am

PER

SEA

44h 05m

3 stops

11:00 am - 4:15 am

SEA

PER

73h 15m

3 stops

$1,304Multiple Airlines

Thu, Oct 15 - Thu, Nov 12

12:10 am - 10:50 am

PER

SEA

25h 40m

2 stops

1:15 pm - 12:40 am

SEA

PER

44h 25m

2 stops

$1,313Japan Airlines

Wed, Jul 15 - Mon, Sep 7

10:40 pm - 10:05 am

PER

SEA

26h 25m

2 stops

7:20 pm - 12:55 pm

SEA

PER

26h 35m

2 stops

$1,322Multiple Airlines

Mon, Jun 8 - Tue, Jun 23

10:30 am - 10:41 pm

PER

SEA

27h 11m

2 stops

7:07 pm - 5:00 pm

SEA

PER

30h 53m

2 stops

$1,370Qantas Airways

Tue, Aug 4 - Sun, Aug 23

1:10 am - 8:45 am

PER

SEA

22h 35m

1 stop

8:45 am - 5:25 am

SEA

PER

28h 40m

1 stop

$1,380Singapore Airlines

Wed, Oct 14 - Thu, Nov 12

11:45 pm - 11:21 pm

PER

SEA

38h 36m

2 stops

5:02 pm - 11:15 am

SEA

PER

27h 13m

2 stops

$1,390American Airlines

Tue, Aug 4 - Mon, Aug 24

11:45 pm - 10:26 pm

PER

SEA

37h 41m

2 stops

7:10 am - 1:35 pm

SEA

PER

39h 25m

2 stops

$1,395American Airlines

Tue, Aug 4 - Wed, Aug 26

6:25 pm - 3:15 pm

PER

SEA

35h 50m

3 stops

12:10 am - 8:10 am

SEA

PER

65h 00m

3 stops

$1,417Multiple Airlines

Mon, Sep 21 - Thu, Oct 15

12:15 pm - 10:35 am

PER

SEA

37h 20m

2 stops

1:15 pm - 10:40 pm

SEA

PER

42h 25m

2 stops

$1,436Japan Airlines

Mon, Sep 21 - Fri, Oct 16

Singapore Airlines flights from Perth to Seattle

Our best Singapore Airlines deals on Perth to Seattle flight tickets

Singapore Airlines

Oct 14

PER1:10 amPerth

22h 35m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Nov 12

SEA8:45 amSeattle/Tacoma Intl

28h 40m

1 stop

PER5:25 amPerth

$1,380

Singapore Airlines

Sep 21

PER6:25 amPerth

41h 20m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Oct 16

SEA10:15 amSeattle/Tacoma Intl

51h 55m

1 stop

PER5:10 amPerth

$1,570

Singapore Airlines

Oct 1

PER1:10 amPerth

22h 35m

1 stop

SEA8:45 amSeattle/Tacoma Intl

Oct 3

SEA10:15 amSeattle/Tacoma Intl

51h 55m

1 stop

PER5:10 amPerth

$1,684

Qatar Airways flights from Perth to Seattle

Our best Qatar Airways deals on Perth to Seattle flight tickets

Qatar Airways

Jun 14

PER10:55 pmPerth

30h 50m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 21

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

$1,716

Qatar Airways

Jun 7

PER10:55 pmPerth

30h 50m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 21

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

$1,783

Qatar Airways

Jun 7

PER10:55 pmPerth

30h 50m

1 stop

SEA2:45 pmSeattle/Tacoma Intl

Jun 21

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

$1,796

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 8/3

12:10 am-10:50 am

2 stops25h 40m

Seattle/Tacoma Intl

Tue 8/25

1:25 pm-6:50 am

2 stops26h 25m

$1,272

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 10/15

5:35 am-10:40 am

3 stops44h 05m

Seattle/Tacoma Intl

Thu 11/12

11:00 am-4:15 am

3 stops73h 15m

$1,304

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 7/15

12:10 am-10:50 am

2 stops25h 40m

Seattle/Tacoma Intl

Mon 9/7

1:15 pm-12:40 am

2 stops44h 25m

$1,313

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 6/8

10:40 pm-10:05 am

2 stops26h 25m

Seattle/Tacoma Intl

Tue 6/23

7:20 pm-12:55 pm

2 stops26h 35m

$1,322

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 8/4

10:30 am-10:41 pm

2 stops27h 11m

Seattle/Tacoma Intl

Sun 8/23

7:07 pm-5:00 pm

2 stops30h 53m

$1,370

Quickest round-trip

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 10/14

1:10 am-8:45 am

1 stop22h 35m

Seattle/Tacoma Intl

Thu 11/12

8:45 am-5:25 am

1 stop28h 40m

$1,380

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 8/4

11:45 pm-11:21 pm

2 stops38h 36m

Seattle/Tacoma Intl

Mon 8/24

5:02 pm-11:15 am

2 stops27h 13m

$1,390

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 8/4

11:45 pm-10:26 pm

2 stops37h 41m

Seattle/Tacoma Intl

Wed 8/26

7:10 am-1:35 pm

2 stops39h 25m

$1,395

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 9/21

6:25 pm-3:15 pm

3 stops35h 50m

Seattle/Tacoma Intl

Thu 10/15

12:10 am-8:10 am

3 stops65h 00m

$1,417

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 9/21

12:15 pm-10:35 am

2 stops37h 20m

Seattle/Tacoma Intl

Fri 10/16

1:15 pm-10:40 pm

2 stops42h 25m

$1,436

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 from Perth 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 $1,348 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 29% 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 May 2026, prices for Perth to Seattle flights are approximately 1% 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	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

Redmond

Kent

Marysville

Puyallup

Tukwila

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Shoreline

Westport

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.