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Cheap flights from Washington to Perth from $1,544

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
1 Apr — 8 Apr1
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 27 March 2025.

Round-trip from

$1,752

One-way from

$1,544

Popular in

June

Cheapest in

February

Average price

$2,343
1/9-12/9
  • 1/9-12/9
  • 4 total stops
  • 85h 20m total
  • Washington to Perth
Search Deals
Cathay Pacific
  • Cathay Pacific
  • 10/4
  • 2 total stops
  • 53h 15m total
  • Washington to Perth
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($231 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 27 March 2025.

Sat 10/501:10SEA - PER
2 stops49h 00mMultiple Airlines
Sun 18/518:25PER - SEA
2 stops40h 05mMultiple Airlines
Deal found 27/3$1,825
Sun 11/516:30SEA - PER
1 stop35h 10mQatar Airways
Sun 18/522:45PER - SEA
1 stop29h 00mQatar Airways
Deal found 27/3$2,012
Thu 2/1010:15SEA - PER
1 stop22h 40mSingapore Airlines
Mon 6/1001:10PER - SEA
2 stops30h 45mSingapore Airlines
Deal found 27/3$2,047
Wed 2/413:25PDX - PER
2 stops38h 15mQatar Airways
Wed 30/422:45PER - PDX
2 stops37h 11mQatar Airways
Deal found 25/3$2,370
Wed 2/407:00PDX - PER
2 stops33h 45mMultiple Airlines
Tue 29/400:10PER - PDX
3 stops31h 09mMultiple Airlines
Deal found 25/3$2,661
Sun 20/707:00PDX - PER
2 stops38h 30mSingapore Airlines
Tue 19/817:10PER - PDX
2 stops55h 37mSingapore Airlines
Deal found 26/3$2,967
Sun 11/517:13SEA - PER
2 stops28h 17mUnited Airlines
Sun 18/523:55PER - SEA
3 stops36h 07mUnited Airlines
Deal found 27/3$3,239
Wed 2/418:05PDX - PER
2 stops61h 35mCathay Pacific
Tue 29/400:10PER - PDX
2 stops35h 27mCathay Pacific
Deal found 25/3$3,241
Sun 31/821:15SEA - PER
2 stops43h 30mCathay Pacific
Sun 14/909:15PER - SEA
2 stops37h 54mCathay Pacific
Deal found 27/3$10,706
Tue 23/906:00GEG - PER
2 stops26h 55mSingapore Airlines
Mon 6/1001:10PER - GEG
2 stops26h 40mSingapore Airlines
Deal found 27/3$15,423
Tue 23/912:35GEG - PER
2 stops36h 25mAir New Zealand
Tue 7/1017:55PER - GEG
3 stops44h 14mAir New Zealand
Deal found 27/3$16,648
Sun 11/516:30SEA - PER
2 stops32h 15mANA
Sat 17/501:10PER - SEA
3 stops32h 23mANA
Deal found 27/3$20,810

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 27 March 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

Mon 1/9

01:40-17:10

2 stops48h 30m

Perth

Fri 12/9

21:55-19:45

2 stops36h 50m

$1,752

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 10/5

16:30-18:40

1 stop35h 10m

Perth

Sat 17/5

22:45-12:45

1 stop29h 00m

$2,009

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 2/9

10:15-23:55

1 stop22h 40m

Perth

Fri 12/9

06:25-08:45

1 stop41h 20m

$2,160

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 2/6

10:00-21:30

2 stops44h 30m

Perth

Wed 16/7

23:35-09:21

2 stops24h 46m

$2,497

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 3/6

16:00-11:15

2 stops28h 15m

Perth

Fri 18/7

10:30-21:44

2 stops26h 14m

$2,584

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 7/5

17:13-11:40

2 stops27h 27m

Perth

Tue 27/5

23:45-21:11

3 stops36h 26m

$2,730

PortlandPerth

PDX - PER

PDXPER

Portland

Fri 18/7

06:05-18:40

2 stops45h 35m

Perth

Fri 15/8

15:20-06:20

2 stops54h 00m

$2,806

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 20/7

07:00-12:30

2 stops38h 30m

Perth

Tue 19/8

17:10-09:47

2 stops55h 37m

$2,967

PortlandPerth

PDX - PER

PDXPER

Portland

Tue 22/7

21:50-17:10

2 stops52h 20m

Perth

Sun 17/8

18:35-17:35

1 stop38h 00m

$4,955

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 10/4

11:30-07:45

2 stops53h 15m

$1,544

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 12 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, February is the cheapest month in which you can book a flight from State of Washington to Perth (average of $298). 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 27 March 2025.
Read reviews from past customers who have flown Singapore Airlines, Qantas Airways and Cathay Pacific 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.
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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.
Singapore Airlines
8.1
Very Good
1,285 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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.
Qantas Airways
7.5
Good
811 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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.
Cathay Pacific
7.5
Good
837 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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.
Qatar Airways
7.4
Good
3,538 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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.
United Airlines
7.4
Good
8,603 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

8.0

Food

7.7

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 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 $298). 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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Alternative routes for Washington to Perth

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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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