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$680+ Cheap flights from Perth (PER) to Seattle (SEA)

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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
PER — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$953
(Gotogate)

One-way from

$680
(Flightnetwork)

Popular in

December

Cheapest in

February

Average price

$1,314
From Perth to Seattle/Tacoma Intl
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One-way flight from Perth to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 10% potential increase in price ($161 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2212:25 pmPER - SEA
2 stops37h 10mJapan Airlines
Wed 7/301:30 pmSEA - PER
2 stops44h 10mJapan Airlines
Deal found 6/12$953
This Trip.com deal was found by Cheapflights users on 6/10. 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 7/229:55 pmPER - SEA
2 stops33h 40mMultiple Airlines
Tue 7/291:15 amSEA - PER
2 stops28h 25mMultiple Airlines
Deal found 6/10$1,110
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/269:35 pmPER - SEA
2 stops33h 11mANA
Sat 8/27:00 amSEA - PER
2 stops46h 00mANA
Deal found 6/11$1,132
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2711:55 pmPER - SEA
3 stops36h 01mUnited Airlines
Sun 8/35:10 amSEA - PER
2 stops33h 00mUnited Airlines
Deal found 6/12$1,477
This BYOjet deal was found by Cheapflights users on 6/9. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/253:40 pmPER - SEA
1 stop36h 05mQatar Airways
Fri 8/14:30 pmSEA - PER
1 stop28h 25mQatar Airways
Deal found 6/9$1,736
This Singapore Airlines deal was found by Cheapflights users on 6/10. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/11:10 amPER - SEA
1 stop22h 35mSingapore Airlines
Sat 9/136:05 pmSEA - PER
2 stops29h 35mSingapore Airlines
Deal found 6/10$1,819

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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

Tue 7/22

12:25 pm-10:35 am

2 stops37h 10m

Seattle/Tacoma Intl

Wed 7/30

1:30 pm-12:40 am

2 stops44h 10m

$953

PerthSeattle

PER - SEA

PERSEA

Perth

Tue 7/22

9:55 pm-4:35 pm

2 stops33h 40m

Seattle/Tacoma Intl

Tue 7/29

1:15 am-8:40 pm

2 stops28h 25m

$1,110

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 7/26

9:35 pm-3:46 pm

2 stops33h 11m

Seattle/Tacoma Intl

Sat 8/2

7:00 am-8:00 pm

2 stops46h 00m

$1,132

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 7/27

11:55 pm-8:56 pm

3 stops36h 01m

Seattle/Tacoma Intl

Sun 8/3

5:10 am-5:10 am

2 stops33h 00m

$1,477

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 7/25

3:40 pm-12:45 pm

1 stop36h 05m

Seattle/Tacoma Intl

Fri 8/1

4:30 pm-11:55 am

1 stop28h 25m

$1,736

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 8/1

1:10 am-8:45 am

1 stop22h 35m

Seattle/Tacoma Intl

Sat 9/13

6:05 pm-2:40 pm

2 stops29h 35m

$1,819

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 8/3

12:25 pm-10:35 am

2 stops37h 10m

$680

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 7/26

10:30 am-9:44 pm

2 stops26h 14m

$752

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 8/3

6:00 am-11:24 pm

3 stops32h 24m

$768

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 7/27

11:55 pm-8:56 pm

3 stops36h 01m

$782

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 12 results
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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 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 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 round-trip flight from Perth to Seattle. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Perth to Seattle, you should look to book at least 65 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, January is the cheapest month in which you can book a flight from Perth to Seattle (average of $238). Flying from Perth to Seattle in July is currently the most expensive (average of $391). 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 June 12, 2025.

When flying from Perth to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Japan Airlines, ANA and Singapore Airlines from Perth to Seattle by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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
1,489 reviews
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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
882 reviews
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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
1,302 reviews
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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
854 reviews
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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.
Qatar Airways
7.4
Good
3,584 reviews
Japan Airlines
8.3
Very good
1,489 reviews

Entertainment

7.8

Crew

8.7

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

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?

    Currently priced at $953, Japan Airlines will fly you from Perth to Seattle and back. In addition to Japan Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from ANA and United Airlines - these airlines can fly you to your destination from $1,132 and $1,477, respectively. You may be able to fly from Perth to Seattle for 28% less than the average price by searching for these airlines.

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

    $680 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 Qantas Airways and United Airlines, with prices starting from $752 and $782, 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 vacation 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, January is the cheapest month in which you can book a flight from Perth to Seattle (average of $238). Flying from Perth to Seattle in July is currently the most expensive (average of $391). 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
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

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 airline flying from Perth to Seattle

Discover the top airline 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,070Average$1,504FlexibilityNo cancel feeOn-time81%

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