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Cheap flights from Washington to Perth from $880

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Washington to Perth

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Perth
Explore the most affordable flight options available from Washington to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Tue 11/1100:10SEA - PER
2 stops60h 05mMultiple Airlines
Wed 19/1117:45PER - SEA
2 stops40h 25mMultiple Airlines
Deal found 2/11$1,551
Wed 12/1117:57SEA - PER
2 stops36h 58mCathay Pacific
Tue 18/1100:25PER - SEA
2 stops30h 23mCathay Pacific
Deal found 2/11$1,962
Sat 8/1123:30SEA - PER
2 stops32h 50mMultiple Airlines
Wed 12/1106:50PER - SEA
2 stops27h 20mMultiple Airlines
Deal found 2/11$2,069
Tue 2/1206:00PDX - PER
2 stops32h 55mCathay Pacific
Mon 8/1200:25PER - PDX
2 stops33h 03mCathay Pacific
Deal found 2/11$2,083
Thu 13/1114:50PDX - PER
2 stops33h 25mMultiple Airlines
Wed 3/1222:45PER - PDX
2 stops30h 50mMultiple Airlines
Deal found 3/11$2,087
Fri 7/1116:30SEA - PER
2 stops46h 25mMultiple Airlines
Fri 14/1108:30PER - SEA
2 stops28h 32mMultiple Airlines
Deal found 2/11$2,096
Fri 7/1116:30SEA - PER
2 stops46h 25mCathay Pacific
Thu 13/1100:25PER - SEA
2 stops34h 22mCathay Pacific
Deal found 2/11$2,118
Mon 10/1100:10SEA - PER
2 stops29h 35mMultiple Airlines
Tue 25/1105:35PER - SEA
2 stops28h 35mMultiple Airlines
Deal found 2/11$2,196
Wed 12/1116:05SEA - PER
1 stop27h 50mQatar Airways
Wed 19/1115:55PER - SEA
1 stop35h 45mQatar Airways
Deal found 2/11$2,222
Mon 24/1113:24PDX - PER
2 stops37h 21mQatar Airways
Tue 31/322:45PER - PDX
2 stops38h 36mQatar Airways
Deal found 2/11$2,264
Sat 8/1117:57SEA - PER
2 stops36h 58mCathay Pacific
Tue 11/1100:25PER - SEA
2 stops37h 35mCathay Pacific
Deal found 2/11$2,268
Fri 14/1106:00PDX - PER
2 stops38h 05mQantas Airways
Sun 30/1115:20PER - PDX
2 stops41h 52mQantas Airways
Deal found 3/11$2,359

Cheap flight deals from Washington to Perth

Keep the following information in mind while searching for Washington to Perth flight deals. Data was last updated 3 November 2025.

Round-trip from

$1,684

One-way from

$880

Popular in

January

Cheapest in

September

Average price

$2,287
Philippine Airlines
  • Philippine Airlines
  • 14/2-19/2
  • 3 total stops
  • 74h 30m total
  • Washington to Perth
Search Deals
5/4
  • 5/4
  • 2 total stops
  • 29h 40m total
  • Washington to Perth
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($285 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from 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, Cheapflights users made 647,157 searches. Data last updated 3 November 2025.
Use the filters below to find and compare flights from Washington to Perth that are best for you.

Fly from

Washington

Fly to

Perth

Route

Depart

Return

Price

PortlandPerth

PDX - PER

PDXPER

Portland

Mon 23/2

07:30-12:35

3 stops37h 05m

Perth

Sun 8/3

01:15-20:38

2 stops34h 23m

$1,974

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 28/3

20:00-20:40

2 stops33h 40m

Perth

Tue 7/4

22:40-09:33

2 stops25h 53m

$2,008

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 7/2

19:00-20:10

2 stops33h 10m

Perth

Tue 24/2

23:10-09:15

2 stops26h 05m

$2,012

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 17/2

08:45-04:15

1 stop27h 30m

Perth

Fri 27/2

05:35-18:10

2 stops28h 35m

$2,014

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 14/2

16:05-18:45

1 stop34h 40m

Perth

Thu 19/2

08:40-18:40

1 stop26h 00m

$2,040

PortlandPerth

PDX - PER

PDXPER

Portland

Tue 2/12

06:00-06:55

2 stops32h 55m

Perth

Tue 9/12

08:30-17:28

2 stops48h 58m

$2,083

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 7/2

19:00-20:10

2 stops33h 10m

Perth

Tue 24/2

22:55-14:40

2 stops31h 45m

$2,087

PortlandPerth

PDX - PER

PDXPER

Portland

Thu 13/11

14:50-14:30

2 stops31h 40m

Perth

Wed 3/12

22:45-13:35

2 stops30h 50m

$2,087

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 28/3

17:05-18:40

1 stop34h 35m

Perth

Mon 6/4

22:45-19:59

2 stops36h 14m

$2,104

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 19/4

16:30-11:55

1 stop28h 25m

Perth

Thu 23/4

15:40-12:45

1 stop36h 05m

$2,161

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 24 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from State of Washington to Perth?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Perth (average of $1,606). Flying from State of Washington to Perth in January is currently the most expensive (average of $2,032). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Washington to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • How long is the flight from State of Washington to Perth?

    Cathay Pacific, Air Canada, and Qatar Airways can get you from State of Washington to Perth in just under 32h 55m. Your travel time can differ by up to 1h 40m. There are 14828 km between State of Washington and Perth. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from State of Washington to Perth?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Perth (average of $1,606). Flying from State of Washington to Perth in January is currently the most expensive (average of $2,032). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Perth?

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

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Alternative routes for Washington to Perth

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Fly with Cheapflights

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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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