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Perth

$662+ Cheap flights from Washington to Perth (PER)

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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Washington to Perth

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 February 5, 2026.

This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:25 pm
SEA
-
PER
1 stop43h 15m
Cathay Pacific
Mon 9/148:20 am
PER
-
SEA
1 stop41h 00m
Cathay Pacific
Deal found 2/3$983
This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:45 am
SEA
-
PER
1 stop43h 55m
Cathay Pacific
Tue 4/288:20 am
PER
-
SEA
1 stop40h 45m
Cathay Pacific
Deal found 2/2$987
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:15 am
SEA
-
PER
1 stop30h 55m
Multiple Airlines
Sat 5/166:25 pm
PER
-
SEA
1 stop29h 20m
Multiple Airlines
Deal found 2/4$1,039
This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:25 pm
SEA
-
PER
1 stop43h 15m
Cathay Pacific
Tue 10/68:20 am
PER
-
SEA
1 stop40h 45m
Cathay Pacific
Deal found 2/2$1,059
This oojo deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:41 am
SEA
-
PER
2 stops55h 09m
Cathay Pacific
Sun 4/198:20 am
PER
-
SEA
1 stop40h 45m
Cathay Pacific
Deal found 2/1$1,074
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:59 pm
SEA
-
PER
2 stops44h 51m
Cathay Pacific
Tue 4/1412:10 am
PER
-
SEA
1 stop24h 55m
Cathay Pacific
Deal found 2/3$1,078
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:25 pm
SEA
-
PER
1 stop27h 25m
Cathay Pacific
Sat 10/38:20 am
PER
-
SEA
2 stops39h 45m
Cathay Pacific
Deal found 2/3$1,105
This Expedia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:00 am
GEG
-
PER
2 stops37h 10m
Qantas Airways
Fri 3/275:30 am
PER
-
GEG
2 stops30h 42m
Qantas Airways
Deal found 2/3$1,243
This flugladen.de deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:30 am
PDX
-
PER
2 stops42h 15m
Multiple Airlines
Wed 3/1110:45 pm
PER
-
PDX
2 stops34h 20m
Multiple Airlines
Deal found 2/3$1,324
This oojo deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/41:36 pm
PDX
-
PER
2 stops30h 19m
Qatar Airways
Wed 3/1110:45 pm
PER
-
PDX
2 stops32h 03m
Qatar Airways
Deal found 2/2$1,331
This FlightHub deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:50 pm
PDX
-
PER
2 stops36h 55m
Qatar Airways
Thu 12/33:55 pm
PER
-
PDX
2 stops39h 00m
Qatar Airways
Deal found 2/3$1,352
This BusinessClass deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:30 am
PDX
-
PER
2 stops33h 25m
Multiple Airlines
Wed 3/1110:45 pm
PER
-
PDX
2 stops32h 03m
Multiple Airlines
Deal found 2/4$1,366

Find flight deals from Washington to Perth

Keep the following information in mind while searching for Washington to Perth flight deals. Data was last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$984
(FlightHub)

One-way from

$662
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$1,258
Provider with most accurate pricing for Seattle/Tacoma Intl-Perth flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Perth flights.
Search Deals
From Washington to Perth
Search Deals
One-way flight from Washington to Perth
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 5, 2026.
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

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

11:45 am-6:50 am

1 stop28h 05m

Perth

Mon 4/27

12:10 am-10:05 am

1 stop24h 55m

$984

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 4/1

6:59 pm-6:50 am

2 stops44h 51m

Perth

Tue 4/14

12:10 am-10:05 am

1 stop24h 55m

$1,078

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/5

8:45 am-4:15 am

1 stop27h 30m

Perth

Thu 3/12

5:35 am-6:30 pm

3 stops27h 55m

$1,160

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 4/5

8:41 am-6:50 am

2 stops55h 09m

Perth

Sun 4/19

8:20 am-8:47 am

2 stops39h 27m

$1,171

SpokanePerth

GEG - PER

GEGPER

Spokane

Fri 3/20

6:00 am-10:10 am

2 stops37h 10m

Perth

Fri 3/27

5:30 am-9:12 pm

2 stops30h 42m

$1,243

PortlandPerth

PDX - PER

PDXPER

Portland

Mon 2/23

8:30 am-6:45 pm

2 stops42h 15m

Perth

Wed 3/11

10:45 pm-6:05 pm

2 stops34h 20m

$1,324

PortlandPerth

PDX - PER

PDXPER

Portland

Wed 3/4

1:36 pm-11:55 am

2 stops30h 19m

Perth

Wed 3/11

10:45 pm-3:48 pm

2 stops32h 03m

$1,331

PortlandPerth

PDX - PER

PDXPER

Portland

Wed 3/4

10:30 am-11:55 am

2 stops33h 25m

Perth

Wed 3/11

10:45 pm-3:48 pm

2 stops32h 03m

$1,366

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 2/15

10:48 am-10:05 am

2 stops31h 17m

Perth

Wed 2/18

10:45 pm-5:13 pm

2 stops34h 28m

$1,576

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 2/15

9:19 pm-11:55 am

2 stops46h 36m

Perth

Wed 2/18

10:45 pm-10:41 pm

2 stops39h 56m

$1,611

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 23 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 round-trip 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 $961). Flying from State of Washington to Perth in January is currently the most expensive (average of $1,481). 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?

    Located just 6.3 mi from the city center, Perth (PER) is the airport most travelers will use when flying to Perth from Washington.

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

    Cathay Pacific, Qantas Airways, and Qatar Airways can get you from State of Washington to Perth in just under 28h 05m. Your travel time can differ by up to 9h 05m. Airlines will cover a distance of 9235 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Portland - Perth or Spokane - Perth, Seattle/Tacoma Intl - Perth is the most popular 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 vacation 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 $961). Flying from State of Washington to Perth in January is currently the most expensive (average of $1,481). 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

Traveling to a place near Perth?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Washington to Perth

Discover the top 3 airlines that operate flights from Washington to Perth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,258Average$1,451FlexibilityNo cancel feeOn-time74%
Singapore AirlinesCheapest$1,265Average$1,486FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,325Average$1,487FlexibilityNo cancel feeOn-time68%

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