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Cheap flights from Washington to Perth from $731

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.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
23:10 - 04:20
SEA
-
PER
38h 10m
2 stops
Multiple Airlines Logo
17:50 - 18:35
PER
-
SEA
64h 45m
2 stops
$1,608Multiple Airlines
Wed, 9 Sep - Tue, 3 Nov
Multiple Airlines Logo
23:10 - 03:45
SEA
-
PER
37h 35m
3 stops
Multiple Airlines Logo
20:40 - 18:35
PER
-
SEA
61h 55m
3 stops
$1,754Multiple Airlines
Wed, 9 Sep - Tue, 3 Nov
Air Canada Logo
15:30 - 15:45
PDX
-
PER
33h 15m
2 stops
Air Canada Logo
13:15 - 19:11
PER
-
PDX
44h 56m
2 stops
$1,774Air Canada
Sun, 16 Aug - Sat, 29 Aug
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:45
PER
-
SEA
29h 00m
1 stop
$1,798Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:45
PER
-
SEA
29h 00m
1 stop
$1,799Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
22:45 - 20:32
PER
-
SEA
36h 47m
2 stops
$1,832Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
22:45 - 20:32
PER
-
SEA
36h 47m
2 stops
$1,834Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
07:18 - 17:10
SEA
-
PER
42h 52m
2 stops
Multiple Airlines Logo
17:50 - 07:10
PER
-
SEA
29h 20m
1 stop
$1,889Multiple Airlines
Wed, 9 Sep - Tue, 3 Nov
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 11:40
PER
-
SEA
28h 55m
1 stop
$1,896Qatar Airways
Wed, 9 Sep - Tue, 3 Nov
Singapore Airlines Logo
10:15 - 12:30
SEA
-
PER
35h 15m
1 stop
Singapore Airlines Logo
01:15 - 08:10
PER
-
SEA
21h 55m
1 stop
$1,905Singapore Airlines
Sat, 17 Oct - Fri, 30 Oct

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United Airlines flights from State of Washington to Perth

Our best United Airlines deals on State of Washington to Perth flight tickets
United Airlines
5 Oct
SEA17:21Seattle/Tacoma Intl
30h 19m
2 stops
PER14:40Perth
19 Oct
PER23:45Perth
27h 38m
2 stops
SEA12:23Seattle/Tacoma Intl
$2,037
United Airlines
5 Oct
SEA19:25Seattle/Tacoma Intl
28h 15m
2 stops
PER14:40Perth
21 Oct
PER23:45Perth
29h 37m
2 stops
SEA14:22Seattle/Tacoma Intl
$2,109
United Airlines
8 Oct
SEA13:19Seattle/Tacoma Intl
34h 21m
2 stops
PER14:40Perth
21 Oct
PER23:45Perth
27h 38m
2 stops
SEA12:23Seattle/Tacoma Intl
$2,181

Singapore Airlines flights from State of Washington to Perth

Our best Singapore Airlines deals on State of Washington to Perth flight tickets
Singapore Airlines
20 Nov
SEA08:45Seattle/Tacoma Intl
28h 40m
1 stop
PER05:25Perth
29 Nov
PER06:40Perth
64h 30m
1 stop
SEA07:10Seattle/Tacoma Intl
$2,081
Singapore Airlines
21 Nov
SEA08:45Seattle/Tacoma Intl
38h 00m
1 stop
PER14:45Perth
29 Nov
PER06:40Perth
64h 30m
1 stop
SEA07:10Seattle/Tacoma Intl
$2,100
Singapore Airlines
28 June
SEA10:15Seattle/Tacoma Intl
35h 15m
1 stop
PER12:30Perth
29 Aug
PER06:25Perth
41h 20m
1 stop
SEA08:45Seattle/Tacoma Intl
$6,317

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 26 June 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

Wed 9/9

23:10-04:20

2 stops38h 10m

Perth

Tue 3/11

17:50-18:35

2 stops64h 45m

$1,608

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

23:10-03:45

3 stops37h 35m

Perth

Tue 3/11

20:40-18:35

3 stops61h 55m

$1,754

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 16/8

15:30-15:45

2 stops33h 15m

Perth

Sat 29/8

13:15-19:11

2 stops44h 56m

$1,774

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-12:45

1 stop29h 00m

$1,798

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-12:45

1 stop29h 00m

$1,799

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-20:32

2 stops36h 47m

$1,832

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-20:32

2 stops36h 47m

$1,834

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

07:18-17:10

2 stops42h 52m

Perth

Tue 3/11

17:50-07:10

1 stop29h 20m

$1,889

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

16:25-18:35

1 stop35h 10m

Perth

Tue 3/11

22:45-11:40

1 stop28h 55m

$1,896
Fastest return journey

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 17/10

10:15-12:30

1 stop35h 15m

Perth

Fri 30/10

01:15-08:10

1 stop21h 55m

$1,905

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 October is, on average, the cheapest month to fly to Perth from State of Washington, with most prices found around $1,677. If you’re not able to fly to Perth in October, then November is your next best option. Flight prices from State of Washington to Perth during November average around $1,695.

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

You could potentially save up to 9% 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

26h 10m

Direct flights

None
The fastest flight from State of Washington to Perth takes 26h 10m
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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Frequently asked questions about flying from Washington to Perth

  • 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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