What is the cheapest airline that flies from Washington to Perth?

Philippine Airlines is the most popular carrier operating from Washington to Perth

How long does it take to fly to Perth?

The flight from State of Washington to Perth depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Seattle (a popular airport in State of Washington) to Perth (the most popular airport in Perth), then the flight time is 28h 25m on average. If you fly from Spokane (another popular airport in State of Washington) to Perth, then the average flight time is 34h.

When did momondo last update prices for flights from Washington to Perth Airport?

Prices for flights from Washington to Perth Airport refresh daily.

How old do you have to be to fly from Washington 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 licence 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.

$661 Cheap Flights from Washington to Perth in 2025/26

1 adult

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Find the cheapest flights from Washington to Perth

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

08:45 - 12:35SEA-PER

35h 50m1 stop

01:15 - 08:10PER-SEA

21h 55m1 stop

$1,751Singapore Airlines

Find Deal

Thu, 26 Feb - Sat, 21 Mar

08:45 - 05:25SEA-PER

28h 40m1 stop

17:05 - 08:10PER-SEA

54h 05m1 stop

$1,798Singapore Airlines

Find Deal

Thu, 26 Feb - Sun, 22 Mar

08:45 - 05:35SEA-PER

28h 50m2 stops

18:30 - 22:06PER-SEA

42h 36m3 stops

$1,841Multiple Airlines

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Thu, 26 Feb - Sun, 22 Mar

08:45 - 04:15SEA-PER

27h 30m1 stop

18:30 - 22:06PER-SEA

42h 36m3 stops

$1,856Multiple Airlines

Find Deal

Thu, 26 Feb - Sun, 22 Mar

07:40 - 06:55SEA-PER

56h 15m2 stops

00:25 - 22:24PER-SEA

37h 59m2 stops

$1,891Cathay Pacific

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Thu, 30 Oct - Wed, 5 Nov

06:00 - 06:55SEA-PER

32h 55m2 stops

00:25 - 18:40PER-SEA

57h 15m2 stops

$1,899Cathay Pacific

Find Deal

Thu, 26 Feb - Sat, 21 Mar

07:00 - 18:40SEA-PER

44h 40m2 stops

22:45 - 11:40PER-SEA

28h 55m1 stop

$2,037Qatar Airways

Find Deal

Thu, 23 Oct - Tue, 11 Nov

07:00 - 18:40SEA-PER

44h 40m2 stops

15:55 - 11:40PER-SEA

35h 45m1 stop

$2,040Qatar Airways

Find Deal

Thu, 23 Oct - Thu, 13 Nov

12:33 - 14:30PDX-PER

33h 57m2 stops

22:45 - 13:35PER-PDX

30h 50m2 stops

$2,183Qantas Airways

Find Deal

Thu, 13 Nov - Wed, 3 Dec

12:33 - 16:15PDX-PER

35h 42m2 stops

17:20 - 13:35PER-PDX

36h 15m2 stops

$2,190Qantas Airways

Find Deal

Thu, 13 Nov - Wed, 3 Dec

Singapore Airlines flights from State of Washington to Perth

Our best Singapore Airlines deals on State of Washington to Perth flight tickets

Singapore Airlines

26 Feb

SEA08:45Seattle/Tacoma Intl

35h 50m

1 stop

PER12:35Perth

21 Mar

PER01:15Perth

21h 55m

1 stop

SEA08:10Seattle/Tacoma Intl

$1,751

Find similar

Singapore Airlines

26 Feb

SEA08:45Seattle/Tacoma Intl

28h 40m

1 stop

PER05:25Perth

22 Mar

PER17:05Perth

54h 05m

1 stop

SEA08:10Seattle/Tacoma Intl

$1,798

Find similar

Singapore Airlines

30 Oct

SEA09:45Seattle/Tacoma Intl

35h 50m

1 stop

PER12:35Perth

6 Nov

PER17:05Perth

30h 05m

1 stop

SEA07:10Seattle/Tacoma Intl

$1,889

Find similar

Cathay Pacific flights from State of Washington to Perth

Our best Cathay Pacific deals on State of Washington to Perth flight tickets

Cathay Pacific

30 Oct

SEA07:40Seattle/Tacoma Intl

56h 15m

2 stops

PER06:55Perth

5 Nov

PER00:25Perth

37h 59m

2 stops

SEA22:24Seattle/Tacoma Intl

$1,891

Find similar

Cathay Pacific

26 Feb

SEA06:00Seattle/Tacoma Intl

32h 55m

2 stops

PER06:55Perth

21 Mar

PER00:25Perth

57h 15m

2 stops

SEA18:40Seattle/Tacoma Intl

$1,899

Find similar

Cathay Pacific

23 Oct

SEA20:15Seattle/Tacoma Intl

59h 40m

2 stops

PER22:55Perth

10 Nov

PER00:25Perth

50h 41m

2 stops

SEA11:06Seattle/Tacoma Intl

$1,994

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 26/2

08:45-12:35

1 stop35h 50m

Perth

Sat 21/3

01:15-08:10

1 stop21h 55m

$1,751

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 26/2

08:45-05:25

1 stop28h 40m

Perth

Sun 22/3

17:05-08:10

1 stop54h 05m

$1,798

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 26/2

08:45-05:35

2 stops28h 50m

Perth

Sun 22/3

18:30-22:06

3 stops42h 36m

$1,841

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 26/2

08:45-04:15

1 stop27h 30m

Perth

Sun 22/3

18:30-22:06

3 stops42h 36m

$1,856

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 30/10

07:40-06:55

2 stops56h 15m

Perth

Wed 5/11

00:25-22:24

2 stops37h 59m

$1,891

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 26/2

06:00-06:55

2 stops32h 55m

Perth

Sat 21/3

00:25-18:40

2 stops57h 15m

$1,899

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 23/10

07:00-18:40

2 stops44h 40m

Perth

Tue 11/11

22:45-11:40

1 stop28h 55m

$2,037

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 23/10

07:00-18:40

2 stops44h 40m

Perth

Thu 13/11

15:55-11:40

1 stop35h 45m

$2,040

PortlandPerth

PDX - PER

PDXPER

Portland

Thu 13/11

12:33-14:30

2 stops33h 57m

Perth

Wed 3/12

22:45-13:35

2 stops30h 50m

$2,183

PortlandPerth

PDX - PER

PDXPER

Portland

Thu 13/11

12:33-16:15

2 stops35h 42m

Perth

Wed 3/12

17:20-13:35

2 stops36h 15m

$2,190

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Other information

What is the cheapest month to fly to Perth?

The month of September is, on average, the cheapest month to fly to Perth from State of Washington, with most prices found around $1,961. If you’re not able to fly to Perth in September, then February is your next best option. Flight prices from State of Washington to Perth during February average around $1,999.

Can stopping save me money on State of Washington to Perth flights?

You could potentially save up to 6% on your flight if you consider stops on a State of Washington to Perth flight.

Cheap State of Washington to Perth flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Perth

Direct flights	None

There are no direct flights from State of Washington to Perth. There are no popular flight routes from State of Washington to Perth.

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When did momondo last update prices for flights from Washington to Perth Airport?
Prices for flights from Washington to Perth Airport refresh daily.
How old do you have to be to fly from Washington 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 licence 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.

Fremantle

Mandurah

Scarborough

Rottnest Island

Why use momondo?

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

It is quick and easy to find Washington to Perth flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Perth that suits you.

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

Yes. momondo allows you to filter the results for Washington to Perth flights to just show those with flexible booking policies.

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

Once all potential Washington to Perth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Washington to Perth flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.