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Perth

$576+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find 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 November 3, 2025.

This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:10 amSEA - PER
2 stops60h 05mMultiple Airlines
Wed 11/195:45 pmPER - SEA
2 stops40h 25mMultiple Airlines
Deal found 11/2$1,015
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:57 pmSEA - PER
2 stops36h 58mCathay Pacific
Tue 11/1812:25 amPER - SEA
2 stops30h 23mCathay Pacific
Deal found 11/2$1,284
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:30 pmSEA - PER
2 stops32h 50mMultiple Airlines
Wed 11/126:50 amPER - SEA
2 stops27h 20mMultiple Airlines
Deal found 11/2$1,354
This oojo deal was found by Cheapflights users on 11/2. 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 12/26:00 amPDX - PER
2 stops32h 55mCathay Pacific
Mon 12/812:25 amPER - PDX
2 stops33h 03mCathay Pacific
Deal found 11/2$1,363
This oojo deal was found by Cheapflights users on 11/3. 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 11/132:50 pmPDX - PER
2 stops33h 25mMultiple Airlines
Wed 12/310:45 pmPER - PDX
2 stops30h 50mMultiple Airlines
Deal found 11/3$1,366
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:30 pmSEA - PER
2 stops46h 25mMultiple Airlines
Fri 11/148:30 amPER - SEA
2 stops28h 32mMultiple Airlines
Deal found 11/2$1,372
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:30 pmSEA - PER
2 stops46h 25mCathay Pacific
Thu 11/1312:25 amPER - SEA
2 stops34h 22mCathay Pacific
Deal found 11/2$1,386
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:10 amSEA - PER
2 stops29h 35mMultiple Airlines
Sun 12/77:00 amPER - SEA
2 stops27h 10mMultiple Airlines
Deal found 11/1$1,436
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:10 amSEA - PER
2 stops29h 35mMultiple Airlines
Tue 11/255:35 amPER - SEA
2 stops28h 35mMultiple Airlines
Deal found 11/2$1,437
This oojo deal was found by Cheapflights users on 11/2. 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 11/124:05 pmSEA - PER
1 stop27h 50mQatar Airways
Wed 11/193:55 pmPER - SEA
1 stop35h 45mQatar Airways
Deal found 11/2$1,454
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:24 pmPDX - PER
2 stops37h 21mQatar Airways
Tue 3/3110:45 pmPER - PDX
2 stops38h 36mQatar Airways
Deal found 11/2$1,482
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:34 amPDX - PER
2 stops34h 21mQatar Airways
Tue 11/1810:45 pmPER - PDX
2 stops35h 02mQatar Airways
Deal found 11/1$1,521

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,143
(oojo)

One-way from

$576
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$1,497
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. 7% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 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 2/23

7:30 am-12:35 pm

3 stops37h 05m

Perth

Sun 3/8

1:15 am-8:38 pm

2 stops34h 23m

$1,292

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 2/7

7:00 pm-8:10 pm

2 stops33h 10m

Perth

Tue 2/24

11:10 pm-9:15 am

2 stops26h 05m

$1,317

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 11/8

11:30 pm-12:20 am

2 stops32h 50m

Perth

Wed 11/12

6:50 am-6:10 pm

2 stops27h 20m

$1,354

PortlandPerth

PDX - PER

PDXPER

Portland

Tue 12/2

6:00 am-6:55 am

2 stops32h 55m

Perth

Tue 12/9

8:30 am-5:28 pm

2 stops48h 58m

$1,363

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 2/7

7:00 pm-8:10 pm

2 stops33h 10m

Perth

Tue 2/24

10:55 pm-2:40 pm

2 stops31h 45m

$1,366

PortlandPerth

PDX - PER

PDXPER

Portland

Thu 11/13

2:50 pm-2:30 pm

2 stops31h 40m

Perth

Wed 12/3

10:45 pm-1:35 pm

2 stops30h 50m

$1,366

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 11/12

9:30 pm-7:20 am

1 stop41h 50m

Perth

Wed 11/19

11:10 pm-10:06 pm

3 stops38h 56m

$1,372

PortlandPerth

PDX - PER

PDXPER

Portland

Mon 11/24

1:24 pm-6:45 pm

2 stops37h 21m

Perth

Tue 3/31

10:45 pm-10:21 pm

2 stops38h 36m

$1,482

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 11/8

4:05 pm-11:55 am

1 stop27h 50m

Perth

Wed 11/12

10:45 pm-11:40 am

1 stop28h 55m

$1,491

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 11/30

8:00 pm-1:50 pm

2 stops25h 50m

Perth

Sun 12/7

10:45 pm-5:28 pm

2 stops34h 43m

$1,499

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 22 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 $1,051). Flying from State of Washington to Perth in January is currently the most expensive (average of $1,330). 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.

What is the cheapest time of day to fly from WA to PER?

Find hourly flight availability from Washington to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

When flying from State of Washington to Perth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight at noon.

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, Air Canada, and Qatar Airways can get you from State of Washington to Perth in just under 27h 50m. Your travel time can differ by up to 5h 20m. 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 $1,051). Flying from State of Washington to Perth in January is currently the most expensive (average of $1,330). 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
Fremantle
Rottnest Island
Scarborough

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Alternative routes for Washington to Perth

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,239Average$1,483FlexibilityNo cancel feeOn-time81%
Qantas AirwaysCheapest$1,258Average$1,448FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,307Average$1,499FlexibilityNo cancel feeOn-time68%

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