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Cheap flights from Perth to Seattle from $1,013

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PER — SEA
5 May — 12 May1
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 30 April 2025.

Round-trip from

$1,736

One-way from

$1,013

Popular in

December

Cheapest in

February

Average price

$2,253
Japan Airlines
  • Japan Airlines
  • 16/8-26/8
  • 4 total stops
  • 81h 20m total
  • Perth to Seattle
Search Deals
10/5
  • 10/5
  • 2 total stops
  • 36h 35m total
  • Perth to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($384 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($115 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Sat 16/812:25PER - SEA
2 stops37h 10mJapan Airlines
Tue 26/813:30SEA - PER
2 stops44h 10mJapan Airlines
Deal found 29/4$1,736
Thu 12/623:55PER - SEA
2 stops29h 14mAmerican Airlines
Thu 31/714:30SEA - PER
2 stops29h 45mAmerican Airlines
Deal found 30/4$1,830
Sat 16/821:35PER - SEA
2 stops36h 01mANA
Tue 26/816:30SEA - PER
1 stop36h 30mANA
Deal found 29/4$1,880
Thu 12/606:25PER - SEA
2 stops28h 05mMultiple Airlines
Wed 30/702:10SEA - PER
2 stops30h 45mMultiple Airlines
Deal found 30/4$2,103
Fri 15/801:10PER - SEA
1 stop22h 35mSingapore Airlines
Tue 26/810:15SEA - PER
1 stop22h 40mSingapore Airlines
Deal found 29/4$2,531
Thu 12/623:45PER - SEA
3 stops36h 26mUnited Airlines
Thu 31/708:57SEA - PER
3 stops36h 33mUnited Airlines
Deal found 30/4$2,562
Sat 16/815:20PER - SEA
1 stop36h 25mQatar Airways
Mon 25/800:59SEA - PER
2 stops50h 41mQatar Airways
Deal found 29/4$2,967
Tue 24/606:00PER - SEA
1 stop46h 25mEmirates
Tue 8/717:15SEA - PER
1 stop33h 20mEmirates
Deal found 30/4$3,722
Sat 19/717:15PER - SEA
2 stops31h 06mAir Canada
Wed 30/719:15SEA - PER
2 stops30h 45mAir Canada
Deal found 29/4$14,700
Sat 19/710:30PER - SEA
2 stops26h 14mQantas Airways
Thu 31/717:15SEA - PER
2 stops28h 05mQantas Airways
Deal found 29/4$15,859
Wed 16/701:10PER - SEA
2 stops49h 45mLufthansa
Thu 31/714:20SEA - PER
2 stops33h 20mLufthansa
Deal found 29/4$36,340

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 30 April 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

Sat 16/8

12:25-10:35

2 stops37h 10m

Seattle/Tacoma Intl

Tue 26/8

13:30-00:40

2 stops44h 10m

$1,736

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 16/8

21:35-18:36

2 stops36h 01m

Seattle/Tacoma Intl

Tue 26/8

16:30-20:00

1 stop36h 30m

$1,880

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 16/8

23:15-19:45

2 stops35h 30m

Seattle/Tacoma Intl

Mon 25/8

01:40-04:30

3 stops35h 50m

$2,181

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 15/8

01:10-08:45

1 stop22h 35m

Seattle/Tacoma Intl

Tue 26/8

10:15-23:55

1 stop22h 40m

$2,531

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 16/8

15:20-12:45

1 stop36h 25m

Seattle/Tacoma Intl

Mon 25/8

00:59-18:40

2 stops50h 41m

$2,967

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 23/6

23:55-21:11

3 stops36h 16m

Seattle/Tacoma Intl

Thu 17/7

09:50-12:30

2 stops35h 40m

$2,973

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 24/6

06:00-13:25

1 stop46h 25m

Seattle/Tacoma Intl

Tue 8/7

17:15-17:35

1 stop33h 20m

$3,722

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 19/7

17:15-09:21

2 stops31h 06m

Seattle/Tacoma Intl

Wed 30/7

19:15-17:00

2 stops30h 45m

$14,700

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 19/7

10:30-21:44

2 stops26h 14m

Seattle/Tacoma Intl

Thu 31/7

17:15-12:20

2 stops28h 05m

$15,859

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 16/7

01:10-11:55

2 stops49h 45m

Seattle/Tacoma Intl

Thu 31/7

14:20-14:40

2 stops33h 20m

$36,340

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 25 April 2025.

To ensure you get the cheapest price possible for a flight from Perth to Seattle, you should look to book at least 53 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 $1,469). 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 30 April 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 30 April 2025.
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very Good
1,459 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
ANA
8.3
Very Good
852 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Singapore Airlines
8.1
Very Good
1,292 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Emirates
8.0
Very Good
3,215 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Qantas Airways
7.5
Good
829 reviews
Japan Airlines
8.3
Very Good
1,459 reviews
Check prices

Overall

8.3

Food

7.7

Boarding

8.4

Comfort

8.2

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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 ($1,736), ANA ($1,880), and Singapore Airlines ($2,531) offers the cheapest pricing from Perth to Seattle. These flights start at 16% lower than the current average price 3 months from now.

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

    $1,059 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Japan Airlines, with prices starting from $1,191 and $1,227, 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 $1,469). 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

Browse thousands of different options on Cheapflights for your next trip

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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 5 airlines flying from Perth to Seattle

Discover the top 5 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,441Average$2,139FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Japan AirlinesCheapest$1,584Average$1,891FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$1,721Average$2,068FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$1,811Average$2,845FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest$2,080Average$2,537FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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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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