Cheap flights from Washington to Perth from $505

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 9/6. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:10 pm - 4:20 am
SEA
-
PER
38h 10m
2 stops
Multiple Airlines Logo
5:50 pm - 6:35 pm
PER
-
SEA
64h 45m
2 stops
$1,110Multiple Airlines
Wed, Sep 9 - Tue, Nov 3
Multiple Airlines Logo
11:10 pm - 3:45 am
SEA
-
PER
37h 35m
3 stops
Multiple Airlines Logo
8:40 pm - 6:35 pm
PER
-
SEA
61h 55m
3 stops
$1,211Multiple Airlines
Wed, Sep 9 - Tue, Nov 3
Air Canada Logo
3:30 pm - 3:45 pm
PDX
-
PER
33h 15m
2 stops
Air Canada Logo
1:15 pm - 7:11 pm
PER
-
PDX
44h 56m
2 stops
$1,225Air Canada
Sun, Aug 16 - Sat, Aug 29
Qatar Airways Logo
4:25 pm - 6:35 pm
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
10:45 pm - 12:45 pm
PER
-
SEA
29h 00m
1 stop
$1,241Qatar Airways
Mon, Aug 17 - Mon, Sep 14
Qatar Airways Logo
4:25 pm - 6:35 pm
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
10:45 pm - 12:45 pm
PER
-
SEA
29h 00m
1 stop
$1,242Qatar Airways
Mon, Aug 17 - Mon, Sep 14
Multiple Airlines Logo
4:25 pm - 6:35 pm
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
10:45 pm - 8:32 pm
PER
-
SEA
36h 47m
2 stops
$1,265Multiple Airlines
Mon, Aug 17 - Mon, Sep 14
Multiple Airlines Logo
4:25 pm - 6:35 pm
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
10:45 pm - 8:32 pm
PER
-
SEA
36h 47m
2 stops
$1,266Multiple Airlines
Mon, Aug 17 - Mon, Sep 14
Multiple Airlines Logo
7:18 am - 5:10 pm
SEA
-
PER
42h 52m
2 stops
Multiple Airlines Logo
5:50 pm - 7:10 am
PER
-
SEA
29h 20m
1 stop
$1,304Multiple Airlines
Wed, Sep 9 - Tue, Nov 3
Qatar Airways Logo
4:25 pm - 6:35 pm
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
10:45 pm - 11:40 am
PER
-
SEA
28h 55m
1 stop
$1,309Qatar Airways
Wed, Sep 9 - Tue, Nov 3
Singapore Airlines Logo
10:15 am - 12:30 pm
SEA
-
PER
35h 15m
1 stop
Singapore Airlines Logo
1:15 am - 8:10 am
PER
-
SEA
21h 55m
1 stop
$1,315Singapore Airlines
Sat, Oct 17 - Fri, Oct 30

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American Airlines flights from State of Washington to Perth

Our best American Airlines deals on State of Washington to Perth flight tickets
American Airlines
Aug 14
SEA5:02 pmSeattle/Tacoma Intl
28h 03m
2 stops
PER12:05 pmPerth
Aug 29
PER10:35 amPerth
27h 54m
2 stops
SEA11:29 pmSeattle/Tacoma Intl
$1,527
American Airlines
Aug 21
SEA5:02 pmSeattle/Tacoma Intl
29h 33m
2 stops
PER1:35 pmPerth
Sep 5
PER10:35 amPerth
27h 54m
2 stops
SEA11:29 pmSeattle/Tacoma Intl
$1,605
American Airlines
Aug 7
SEA5:02 pmSeattle/Tacoma Intl
28h 03m
2 stops
PER12:05 pmPerth
Aug 14
PER10:35 amPerth
27h 46m
2 stops
SEA11:21 pmSeattle/Tacoma Intl
$1,659

Qatar Airways flights from State of Washington to Perth

Our best Qatar Airways deals on State of Washington to Perth flight tickets
Qatar Airways
Aug 17
SEA4:25 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:35 pmPerth
Sep 14
PER10:45 pmPerth
29h 00m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
$1,241
Qatar Airways
Aug 17
SEA4:25 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:35 pmPerth
Sep 14
PER10:45 pmPerth
29h 00m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
$1,242
Qatar Airways
Sep 9
SEA4:25 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:35 pmPerth
Nov 3
PER10:45 pmPerth
28h 55m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$1,309

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated June 26, 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 round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

11:10 pm-4:20 am

2 stops38h 10m

Perth

Tue 11/3

5:50 pm-6:35 pm

2 stops64h 45m

$1,110

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

11:10 pm-3:45 am

3 stops37h 35m

Perth

Tue 11/3

8:40 pm-6:35 pm

3 stops61h 55m

$1,211

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 8/16

3:30 pm-3:45 pm

2 stops33h 15m

Perth

Sat 8/29

1:15 pm-7:11 pm

2 stops44h 56m

$1,225

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:45 pm

1 stop29h 00m

$1,241

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:45 pm

1 stop29h 00m

$1,242

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-8:32 pm

2 stops36h 47m

$1,265

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-8:32 pm

2 stops36h 47m

$1,266

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

7:18 am-5:10 pm

2 stops42h 52m

Perth

Tue 11/3

5:50 pm-7:10 am

1 stop29h 20m

$1,304

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/9

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Tue 11/3

10:45 pm-11:40 am

1 stop28h 55m

$1,309
Quickest round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 10/17

10:15 am-12:30 pm

1 stop35h 15m

Perth

Fri 10/30

1:15 am-8:10 am

1 stop21h 55m

$1,315

Flights are sorted by cheapest round-trip 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?

In general, October is the cheapest month to fly from State of Washington to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,158. If you are unable to visit Perth during the month of October, then departing from State of Washington during the month November is also very affordable. Most momondo users find prices during this month for around $1,170.

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

You could potentially save up to 54% 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 40m

Direct flights

None
The fastest flight from State of Washington to Perth takes 27h 40m
There are no direct flights from State of Washington to Perth. There are no popular flight routes from State of Washington to Perth.

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 are updated daily.

  • How many operators does momondo search for flights from Washington to Perth Airport?

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 license 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.

Best airlines flying from State of Washington to Perth

Compare and see reviews for airlines that fly from State of Washington to Perth with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $1,172Free CancellationRating
8.2
1,555 reviews
Search Singapore Airlines flights

Traveling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Rottnest Island
Fremantle
Mandurah
Scarborough
Waikiki

Why use momondo?

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

Finding the right flight to Perth from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Perth quick and easy, saving you time and money.

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

All flight searches from Washington to Perth on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington and Perth 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 Washington to Perth right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Perth from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Sun 7/26
Sun 8/2

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