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Cheap flights from Washington to Perth from $797

SEA — PER
1 Nov — 8 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Perth

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Perth

Mon 2/1121:30 -
1 stop41h 50m
Mon 16/1108:35 -
1 stop26h 10m
Deal found 1/10$1,673
Fri 23/1023:10 -
1 stop41h 10m
Thu 5/1108:35 -
1 stop26h 10m
Deal found 30/9$1,675
Mon 16/1111:00 -
2 stops31h 50m
Mon 23/1120:25 -
2 stops52h 40m
Deal found 1/10$1,732
Fri 6/1121:30 -
1 stop41h 50m
Mon 16/1108:35 -
1 stop26h 10m
Deal found 30/9$1,734
Mon 9/1121:30 -
1 stop41h 50m
Mon 16/1108:35 -
1 stop26h 10m
Deal found 30/9$1,744
Tue 10/1108:40 -
1 stop35h 55m
Tue 17/1117:05 -
1 stop30h 00m
Deal found 29/9$1,800
Mon 16/1121:30 -
1 stop41h 50m
Mon 23/1108:35 -
1 stop26h 10m
Deal found 1/10$1,819
Tue 10/1111:00 -
2 stops37h 25m
Tue 17/1117:50 -
1 stop29h 15m
Deal found 27/9$1,822
Mon 2/1121:30 -
1 stop41h 50m
Mon 16/1120:25 -
2 stops50h 40m
Deal found 1/10$1,823
Mon 26/1011:25 -
1 stop44h 30m
Tue 24/1108:30 -
1 stop40h 15m
Deal found 1/10$1,843

Find flight deals from Washington to Perth

Round-trip from

$1,673

One-way from

$797

Popular in

November

Cheapest in

June

Average price

$1,928
Philippine Airlines
  • Philippine Airlines
  • 2/11-16/11
  • 2 total stops
  • 68h 00m total
  • Washington to Perth
Search Deals
1/12-31/12
  • 1/12-31/12
  • 2 total stops
  • 52h 00m total
  • Washington to Perth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($151 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($89 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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 Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 30/11

21:30-07:20

1 stop41h 50m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$819

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 30/11

11:00-08:25

2 stops53h 25m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$842

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Tue 1/12

08:40-08:25

1 stop31h 45m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$927

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 14/11

10:25-22:55

1 stop44h 30m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,094
Fastest return journey

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 15/11

08:40-05:25

1 stop28h 45m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,162

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Thu 28/1

10:25-22:55

1 stop44h 30m

Perth

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,745

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 16/11

16:59-22:55

2 stops37h 56m

Perth

Mon 23/11

08:30-08:45

1 stop40h 15m

$1,869

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Thu 15/10

06:10-06:50

2 stops33h 40m

Perth

Mon 19/10

08:20-10:05

1 stop40h 45m

$1,881

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 2/11

16:59-22:55

2 stops37h 56m

Perth

Mon 16/11

08:30-08:45

1 stop40h 15m

$1,885

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 28/10

19:08-22:55

2 stops36h 47m

Perth

Tue 3/11

00:25-14:28

2 stops30h 03m

$1,950

Flights are sorted by cheapest return flights first.

Deals found on 27/9

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Washington to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Washington with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington to Perth

How much does it cost for a return flight from State of Washington to Perth?

Airfare is below average for this route at the moment.
State of Washington to Perth flights typically cost between $1,855 and $2,021 in November.
The cheapest return price found within the last 5 days was $1,673 on Philippine Airlines (2 Nov–16 Nov).

Related info for your journey

  • What airport do you fly into for flights to Perth from Washington?

    Most people fly into Perth (PER) if they book a flight to Perth from Washington. Perth is conveniently located just 10.2 km from Perth’s city centre.

  • What are the most popular routes from State of Washington to Perth?

    Most travellers choose Seattle/Tacoma Intl - Perth, Portland - Perth or Spokane - Perth when deciding on the best route from State of Washington to Perth.

  • Can I find deals for flights from Washington to Perth that include hotel bookings?

    Yes. In addition to deals on Washington to Perth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Perth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Perth.

  • Can I find deals for business class flights from Washington to Perth?

    Yes. Cheapflights offers flight deals from Washington to Perth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Perth?

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

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Washington to Perth?

When you search for this flight from Washington to Perth, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Washington to Perth?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Perth from Washington.

Can Cheapflights find flights from Washington to Perth with no change fees?

Yes, we can. To see specific flights from Washington to Perth with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington to Perth become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Perth from Washington today and book when prices fit your budget.

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