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Cheap flights from Washington to Perth from $839

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
6 May — 13 May1
1 adult

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 1 May 2025.

Round-trip from

$1,977

One-way from

$839

Popular in

December

Cheapest in

February

Average price

$2,441
Qatar Airways
  • Qatar Airways
  • 25/10-9/11
  • 2 total stops
  • 57h 30m total
  • Washington to Perth
16/8
  • 16/8
  • 3 total stops
  • 41h 40m total
  • Washington to Perth
Highest demand for flights based on searches. 9% potential increase in price ($419 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($88 potential savings vs. average return price).
Average for round-trip flights in May 2025

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 1 May 2025.

Sat 25/1016:30SEA - PER
1 stop28h 30mQatar Airways
Sun 9/1122:45PER - SEA
1 stop29h 00mQatar Airways
Deal found 30/4$1,977
Fri 29/813:24PDX - PER
2 stops31h 31mQatar Airways
Tue 16/922:45PER - PDX
2 stops32h 18mQatar Airways
Deal found 29/4$2,023
Fri 7/1108:45SEA - PER
1 stop35h 50mSingapore Airlines
Thu 13/1101:10PER - SEA
1 stop22h 00mSingapore Airlines
Deal found 28/4$2,058
Fri 7/1123:55SEA - PER
1 stop39h 20mMultiple Airlines
Thu 13/1100:15PER - SEA
2 stops25h 35mMultiple Airlines
Deal found 28/4$2,165
Fri 29/807:21PDX - PER
2 stops38h 09mSingapore Airlines
Mon 15/901:10PER - PDX
2 stops27h 24mSingapore Airlines
Deal found 29/4$2,229
Fri 7/1107:00SEA - PER
2 stops34h 35mCathay Pacific
Thu 13/1100:15PER - SEA
2 stops48h 00mCathay Pacific
Deal found 28/4$2,360
Sun 21/919:35PDX - PER
2 stops27h 00mAir New Zealand
Sat 27/916:55PER - PDX
3 stops40h 37mAir New Zealand
Deal found 29/4$2,493
Wed 4/616:00SEA - PER
2 stops29h 20mQantas Airways
Wed 11/610:30PER - SEA
2 stops26h 04mQantas Airways
Deal found 29/4$2,612
Fri 13/617:14SEA - PER
2 stops28h 16mUnited Airlines
Fri 20/623:45PER - SEA
2 stops36h 26mUnited Airlines
Deal found 29/4$2,681
Thu 12/615:25PDX - PER
3 stops33h 10mMultiple Airlines
Thu 19/623:55PER - PDX
2 stops35h 52mMultiple Airlines
Deal found 29/4$3,428
Wed 11/600:09PDX - PER
2 stops55h 31mCathay Pacific
Wed 18/600:10PER - PDX
2 stops37h 23mCathay Pacific
Deal found 29/4$15,424
Fri 29/810:00PDX - PER
3 stops38h 45mANA
Tue 16/911:15PER - PDX
3 stops42h 27mANA
Deal found 29/4$18,434

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 1 May 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

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 25/10

16:30-12:00

1 stop28h 30m

Perth

Sun 9/11

22:45-11:45

1 stop29h 00m

$1,977

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 25/10

10:15-23:55

1 stop22h 40m

Perth

Sat 8/11

01:10-07:10

1 stop22h 00m

$2,098

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 12/6

14:40-14:55

2 stops33h 15m

Perth

Wed 18/6

00:10-10:35

2 stops25h 25m

$2,312

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 12/6

14:40-13:35

2 stops31h 55m

Perth

Tue 17/6

10:00-21:34

2 stops26h 34m

$2,374

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 12/6

12:35-12:30

2 stops32h 55m

Perth

Tue 17/6

23:45-21:08

3 stops36h 23m

$2,668

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 16/8

14:50-23:30

3 stops41h 40m

$839

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 19/8

10:15-19:50

2 stops42h 35m

$857

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 20/8

23:35-07:25

1 stop40h 50m

$925

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 24/6

14:40-17:05

2 stops35h 25m

$1,105

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 18/8

16:30-11:55

1 stop28h 25m

$1,128

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 13 results
1
2

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, March is the cheapest month in which you can book a flight from State of Washington to Perth (average of $296). Flying from State of Washington to Perth in December is currently the most expensive (average of $409). 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.

Rainfall in Perth by month

Plan your trip to Perth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Perth ranges from 0.0 - 170.0 inches per month. June is typically the wettest month, when rainfall can reach 170.0 mm. January is typically the driest time to visit Perth when rainfall is around 0.0 mm.

Temperature in Perth by month

Plan your trip to Perth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Perth, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Perth. Reviews last updated 1 May 2025.
Read reviews from past customers who have flown Singapore Airlines, Qantas Airways and Qatar Airways from Washington to Perth. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

  • What are the cheapest airlines to fly from State of Washington to Perth one-way?

    To fly one-way, consider booking your trip with Philippine Airlines, which is currently one of the cheapest options available, starting at $925. Qantas Airways flights start at $1,105 while deals on Qatar Airways start at $1,128 one-way.

  • What are the most popular routes 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, March is the cheapest month in which you can book a flight from State of Washington to Perth (average of $296). Flying from State of Washington to Perth in December is currently the most expensive (average of $409). 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 Washington?

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

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