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

Philippine Airlines and KLM are the most popular carriers 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 55m on average. If you fly from Spokane (another popular airport in State of Washington) to Perth, then the average flight time is 48h 40m.

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.

$644 Cheap Flights from Washington to Perth in 2026

1 adult

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Find the cheapest flights from Washington to Perth

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

01:10 - 04:15

SEA

PER

60h 05m

2 stops

05:35 - 19:10

PER

SEA

28h 35m

2 stops

$1,670Multiple Airlines

Sun, 15 Mar - Mon, 23 Mar

10:15 - 05:10

SEA

PER

27h 55m

1 stop

01:10 - 08:45

PER

SEA

22h 35m

1 stop

$1,672Singapore Airlines

Tue, 7 Apr - Mon, 27 Apr

08:45 - 05:40

SEA

PER

28h 55m

2 stops

23:10 - 09:35

PER

SEA

25h 25m

2 stops

$1,723Multiple Airlines

Tue, 3 Mar - Thu, 12 Mar

10:15 - 23:55

SEA

PER

22h 40m

1 stop

01:10 - 16:17

PER

SEA

30h 07m

2 stops

$1,735Multiple Airlines

Tue, 7 Apr - Mon, 27 Apr

17:50 - 22:55

PDX

PER

38h 05m

2 stops

00:25 - 16:30

PER

PDX

31h 05m

2 stops

$2,148Cathay Pacific

Tue, 17 Mar - Mon, 23 Mar

08:30 - 12:20

PDX

PER

35h 50m

2 stops

22:45 - 22:41

PER

PDX

39h 56m

2 stops

$2,452Qatar Airways

Sun, 15 Feb - Wed, 18 Feb

07:05 - 12:20

PDX

PER

37h 15m

2 stops

22:45 - 22:41

PER

PDX

39h 56m

2 stops

$2,454Qatar Airways

Sun, 15 Feb - Wed, 18 Feb

10:48 - 21:35

PDX

PER

42h 47m

2 stops

22:45 - 17:13

PER

PDX

34h 28m

2 stops

$2,470Qantas Airways

Sun, 15 Feb - Wed, 18 Feb

07:02 - 11:20

GEG

PER

37h 18m

2 stops

23:45 - 21:03

PER

GEG

36h 18m

2 stops

$2,662United Airlines

Sun, 8 Mar - Tue, 10 Mar

07:02 - 11:20

GEG

PER

37h 18m

2 stops

23:45 - 21:03

PER

GEG

36h 18m

2 stops

$2,663United Airlines

Sun, 8 Mar - Tue, 10 Mar

Singapore Airlines flights from State of Washington to Perth

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

Singapore Airlines

7 Apr

SEA10:15Seattle/Tacoma Intl

27h 55m

1 stop

PER05:10Perth

27 Apr

PER01:10Perth

22h 35m

1 stop

SEA08:45Seattle/Tacoma Intl

$1,672

Singapore Airlines

7 Apr

SEA10:15Seattle/Tacoma Intl

27h 55m

1 stop

PER05:10Perth

27 Apr

PER01:10Perth

22h 35m

1 stop

SEA08:45Seattle/Tacoma Intl

$1,792

Singapore Airlines

7 Apr

SEA10:15Seattle/Tacoma Intl

27h 55m

1 stop

PER05:10Perth

27 Apr

PER01:10Perth

22h 35m

1 stop

SEA08:45Seattle/Tacoma Intl

$1,820

Cathay Pacific flights from State of Washington to Perth

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

Cathay Pacific

7 Apr

SEA10:00Seattle/Tacoma Intl

53h 50m

2 stops

PER06:50Perth

27 Apr

PER00:10Perth

24h 55m

1 stop

SEA10:05Seattle/Tacoma Intl

$1,884

Cathay Pacific

7 Apr

SEA10:00Seattle/Tacoma Intl

53h 50m

2 stops

PER06:50Perth

27 Apr

PER00:10Perth

37h 39m

2 stops

SEA22:49Seattle/Tacoma Intl

$1,893

Cathay Pacific

7 Apr

SEA10:00Seattle/Tacoma Intl

53h 50m

2 stops

PER06:50Perth

27 Apr

PER00:10Perth

37h 39m

2 stops

SEA22:49Seattle/Tacoma Intl

$1,894

Fly from

Fly to

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 15/3

01:10-04:15

2 stops60h 05m

Perth

Mon 23/3

05:35-19:10

2 stops28h 35m

$1,670

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 7/4

10:15-05:10

1 stop27h 55m

Perth

Mon 27/4

01:10-08:45

1 stop22h 35m

$1,672

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 3/3

08:45-05:40

2 stops28h 55m

Perth

Thu 12/3

23:10-09:35

2 stops25h 25m

$1,723

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 7/4

10:15-23:55

1 stop22h 40m

Perth

Mon 27/4

01:10-16:17

2 stops30h 07m

$1,735

PortlandPerth

PDX - PER

PDXPER

Portland

Tue 17/3

17:50-22:55

2 stops38h 05m

Perth

Mon 23/3

00:25-16:30

2 stops31h 05m

$2,148

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 15/2

08:30-12:20

2 stops35h 50m

Perth

Wed 18/2

22:45-22:41

2 stops39h 56m

$2,452

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 15/2

07:05-12:20

2 stops37h 15m

Perth

Wed 18/2

22:45-22:41

2 stops39h 56m

$2,454

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 15/2

10:48-21:35

2 stops42h 47m

Perth

Wed 18/2

22:45-17:13

2 stops34h 28m

$2,470

SpokanePerth

GEG - PER

GEGPER

Spokane

Sun 8/3

07:02-11:20

2 stops37h 18m

Perth

Tue 10/3

23:45-21:03

2 stops36h 18m

$2,662

SpokanePerth

GEG - PER

GEGPER

Spokane

Sun 8/3

07:02-11:20

2 stops37h 18m

Perth

Tue 10/3

23:45-21:03

2 stops36h 18m

$2,663

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 February is, on average, the cheapest month to fly to Perth from State of Washington, with most prices found around $1,805. If you’re not able to fly to Perth in February, then September is your next best option. Flight prices from State of Washington to Perth during September average around $1,851.

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

Fastest flight time	28h 55m
Direct flights	None

The fastest flight from State of Washington to Perth takes 28h 55m

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

Search flight deals

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.