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Cheap flights from Washington to Perth from $576

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Perth departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
01:15 - 17:10
SEA
-
PER
48h 55m
2 stops
Multiple Airlines Logo
18:25 - 16:10
PER
-
SEA
36h 45m
2 stops
$1,512Multiple Airlines
Sun, 3 May - Tue, 19 May
Multiple Airlines Logo
00:50 - 19:50
SEA
-
PER
52h 00m
2 stops
Multiple Airlines Logo
20:50 - 18:50
PER
-
SEA
37h 00m
2 stops
$1,557Multiple Airlines
Sat, 16 May - Wed, 20 May
Singapore Airlines Logo
10:15 - 12:30
SEA
-
PER
35h 15m
1 stop
Singapore Airlines Logo
16:55 - 08:45
PER
-
SEA
30h 50m
1 stop
$1,567Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Singapore Airlines Logo
10:15 - 05:10
SEA
-
PER
27h 55m
1 stop
Singapore Airlines Logo
13:45 - 08:45
PER
-
SEA
34h 00m
1 stop
$1,651Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Singapore Airlines Logo
10:15 - 05:10
SEA
-
PER
27h 55m
1 stop
Singapore Airlines Logo
06:25 - 08:45
PER
-
SEA
41h 20m
1 stop
$1,655Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Singapore Airlines Logo
10:15 - 23:55
SEA
-
PER
22h 40m
1 stop
Singapore Airlines Logo
16:55 - 08:45
PER
-
SEA
30h 50m
1 stop
$1,656Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Singapore Airlines Logo
10:15 - 05:10
SEA
-
PER
27h 55m
1 stop
Singapore Airlines Logo
13:45 - 08:45
PER
-
SEA
34h 00m
1 stop
$1,658Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Cathay Pacific Logo
12:25 - 22:40
SEA
-
PER
43h 15m
1 stop
Cathay Pacific Logo
08:20 - 10:20
PER
-
SEA
41h 00m
1 stop
$1,688Cathay Pacific
Mon, 17 Aug - Mon, 14 Sep
Cathay Pacific Logo
12:25 - 22:40
SEA
-
PER
43h 15m
1 stop
Cathay Pacific Logo
08:20 - 10:20
PER
-
SEA
41h 00m
1 stop
$1,689Cathay Pacific
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
16:17 - 14:40
SEA
-
PER
31h 23m
2 stops
Multiple Airlines Logo
06:25 - 08:45
PER
-
SEA
41h 20m
1 stop
$1,700Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep

Singapore Airlines flights from State of Washington to Perth

Our best Singapore Airlines deals on State of Washington to Perth flight tickets
Singapore Airlines
3 Sept
SEA10:15Seattle/Tacoma Intl
35h 15m
1 stop
PER12:30Perth
3 Oct
PER16:55Perth
30h 50m
1 stop
SEA08:45Seattle/Tacoma Intl
$1,567
Singapore Airlines
3 Sept
SEA10:15Seattle/Tacoma Intl
27h 55m
1 stop
PER05:10Perth
3 Oct
PER13:45Perth
34h 00m
1 stop
SEA08:45Seattle/Tacoma Intl
$1,651
Singapore Airlines
3 Sept
SEA10:15Seattle/Tacoma Intl
27h 55m
1 stop
PER05:10Perth
3 Oct
PER06:25Perth
41h 20m
1 stop
SEA08:45Seattle/Tacoma Intl
$1,655

Cathay Pacific flights from State of Washington to Perth

Our best Cathay Pacific deals on State of Washington to Perth flight tickets
Cathay Pacific
17 Aug
SEA12:25Seattle/Tacoma Intl
43h 15m
1 stop
PER22:40Perth
14 Sept
PER08:20Perth
41h 00m
1 stop
SEA10:20Seattle/Tacoma Intl
$1,688
Cathay Pacific
17 Aug
SEA12:25Seattle/Tacoma Intl
43h 15m
1 stop
PER22:40Perth
14 Sept
PER08:20Perth
41h 00m
1 stop
SEA10:20Seattle/Tacoma Intl
$1,689
Cathay Pacific
17 Aug
SEA19:56Seattle/Tacoma Intl
43h 54m
2 stops
PER06:50Perth
14 Sept
PER08:20Perth
41h 00m
1 stop
SEA10:20Seattle/Tacoma Intl
$1,713

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to Perth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 20 March 2026.
Use the filters below to find and compare flights from Washington to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 3/5

01:15-17:10

2 stops48h 55m

Perth

Tue 19/5

18:25-16:10

2 stops36h 45m

$1,512

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 16/5

00:50-19:50

2 stops52h 00m

Perth

Wed 20/5

20:50-18:50

2 stops37h 00m

$1,557

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-12:30

1 stop35h 15m

Perth

Sat 3/10

16:55-08:45

1 stop30h 50m

$1,567

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-05:10

1 stop27h 55m

Perth

Sat 3/10

13:45-08:45

1 stop34h 00m

$1,651

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-05:10

1 stop27h 55m

Perth

Sat 3/10

06:25-08:45

1 stop41h 20m

$1,655
Fastest return journey

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-23:55

1 stop22h 40m

Perth

Sat 3/10

16:55-08:45

1 stop30h 50m

$1,656

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-05:10

1 stop27h 55m

Perth

Sat 3/10

13:45-08:45

1 stop34h 00m

$1,658

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

12:25-22:40

1 stop43h 15m

Perth

Mon 14/9

08:20-10:20

1 stop41h 00m

$1,688

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

12:25-22:40

1 stop43h 15m

Perth

Mon 14/9

08:20-10:20

1 stop41h 00m

$1,689

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:17-14:40

2 stops31h 23m

Perth

Mon 14/9

06:25-08:45

1 stop41h 20m

$1,700

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Perth from

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

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 $1,832. 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 $1,858.

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

You could potentially save up to 2% 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

27h 25m

Direct flights

None
The fastest flight from State of Washington to Perth takes 27h 25m
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.

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Mandurah
Fremantle
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.

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