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Cheap flights from Perth to Seattle from $1,203

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
PER — SEA
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Perth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Perth (PER) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 March 2025.

Round-trip from

$1,646

One-way from

$1,203

Popular in

December

Cheapest in

February

Average price

$2,014
9/5-15/5
  • 9/5-15/5
  • 4 total stops
  • 85h 35m total
  • Perth to Seattle
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Japan Airlines
  • Japan Airlines
  • 18/6
  • 2 total stops
  • 25h 25m total
  • Perth to Seattle
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Highest demand for flights based on searches. 10% potential increase in price ($406 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($120 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Perth to Seattle

Cheapest flights from Perth to Seattle
Explore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Fri 9/521:55PER - SEA
2 stops36h 35mMultiple Airlines
Thu 15/501:10SEA - PER
2 stops49h 00mMultiple Airlines
Deal found 24/3$1,646
Thu 8/500:10PER - SEA
2 stops25h 15mJapan Airlines
Fri 16/513:30SEA - PER
2 stops27h 15mJapan Airlines
Deal found 24/3$1,758
Sat 30/810:30PER - SEA
2 stops27h 35mQantas Airways
Tue 30/917:45SEA - PER
2 stops32h 20mQantas Airways
Deal found 25/3$1,821
Tue 2/913:45PER - SEA
2 stops34h 09mSingapore Airlines
Fri 12/910:15SEA - PER
1 stop27h 55mSingapore Airlines
Deal found 24/3$1,933
Mon 23/621:35PER - SEA
2 stops34h 12mANA
Thu 17/707:00SEA - PER
2 stops46h 00mANA
Deal found 24/3$2,162
Thu 8/506:00PER - SEA
1 stop46h 25mEmirates
Thu 15/517:15SEA - PER
1 stop40h 25mEmirates
Deal found 23/3$2,625
Thu 27/322:45PER - SEA
1 stop28h 55mQatar Airways
Wed 2/419:59SEA - PER
2 stops55h 41mQatar Airways
Deal found 23/3$2,633
Tue 24/623:45PER - SEA
3 stops36h 26mUnited Airlines
Tue 8/706:45SEA - PER
2 stops38h 45mUnited Airlines
Deal found 24/3$2,685

Cheapflights Fare Finder

Customise your flight search to find flights from Perth to Seattle 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 25 March 2025.
Use the filters below to find and compare flights from Perth to Seattle that are best for you.

Fly from

Perth

Fly to

Seattle

Route

Depart

Return

Price

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 9/5

21:55-19:30

2 stops36h 35m

Seattle/Tacoma Intl

Thu 15/5

01:10-17:10

2 stops49h 00m

$1,646

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 8/5

00:10-10:25

2 stops25h 15m

Seattle/Tacoma Intl

Fri 16/5

13:30-07:45

2 stops27h 15m

$1,758

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 30/8

10:30-23:05

2 stops27h 35m

Seattle/Tacoma Intl

Tue 30/9

17:45-17:05

2 stops32h 20m

$1,821

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 2/9

13:45-08:54

2 stops34h 09m

Seattle/Tacoma Intl

Fri 12/9

10:15-05:10

1 stop27h 55m

$1,933

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 23/6

21:35-16:47

2 stops34h 12m

Seattle/Tacoma Intl

Thu 17/7

07:00-20:00

2 stops46h 00m

$2,162

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 8/5

06:00-13:25

1 stop46h 25m

Seattle/Tacoma Intl

Thu 15/5

17:15-00:40

1 stop40h 25m

$2,625

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 24/6

23:45-21:11

3 stops36h 26m

Seattle/Tacoma Intl

Tue 8/7

06:45-12:30

2 stops38h 45m

$2,685

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 9/5

22:45-12:45

1 stop29h 00m

Seattle/Tacoma Intl

Fri 16/5

16:30-18:40

1 stop35h 10m

$2,763

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 18/6

00:10-10:35

2 stops25h 25m

$1,203

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 9/4

03:25-19:30

2 stops31h 05m

$1,290

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 15 results
1
2

Best time to book a flight from Perth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Perth 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 Perth to Seattle

How far ahead should I book a flight from Perth to Seattle?

Use this chart to determine the optimal time to book a return flight from Perth to Seattle. Price data was last updated on 21 March 2025.

To ensure you get the cheapest price possible for a flight from Perth to Seattle, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Perth to Seattle?

Currently, March is the cheapest month in which you can book a flight from Perth to Seattle (average of $875). Flying from Perth to Seattle in December is currently the most expensive (average of $1,482). 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 PER to SEA?

Find hourly flight availability from Perth to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2025.

It’s optimal to fly from Perth to Seattle in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from Perth to Seattle?

Use this chart to determine the cheapest time to fly return from Perth to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Perth to Seattle flight should consider departing on Friday mornings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 25 March 2025.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
ANA
8.3
Very Good
826 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Singapore Airlines
8.1
Very Good
1,284 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Emirates
8.0
Very Good
3,190 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Qantas Airways
7.5
Good
809 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Entertainment

7.8

Overall

8.3

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Related info for your journey

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

  • What are the cheapest airlines flying from Perth to Seattle round-trip?

    According to our current data, Japan Airlines ($1,758), Qantas Airways ($1,821), and Singapore Airlines ($1,933) offers the cheapest pricing from Perth to Seattle. These flights start at 17% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Perth to Seattle one-way?

    $1,203 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on ANA and Singapore Airlines, with prices starting from $1,239 and $1,774, respectively.

  • Can I find deals for flights from Perth to Seattle that include hotel bookings?

    Yes. In addition to deals on Perth to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Perth to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Perth to Seattle.

  • Can I find deals for business class flights from Perth to Seattle?

    Yes. Cheapflights offers flight deals from Perth to Seattle 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 Perth to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Perth to Seattle (average of $875). Flying from Perth to Seattle in December is currently the most expensive (average of $1,482). 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
Leavenworth

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Alternative routes for Perth to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Perth to Portland flights

Top 4 airlines flying from Perth to Seattle

Discover the top 4 airlines that operate flights from Perth to Seattle. 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 647,157 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,614Average$1,929FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$1,630Average$2,086FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$1,845Average$2,675FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest$2,119Average$2,531FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Perth to Seattle?

Deals for Perth to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Perth to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Perth to Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Perth to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Perth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Perth to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Perth to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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