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Perth

$953+ Cheap flights from Seattle (SEA) to Perth (PER)

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Perth are usually found in February or October, booked 61 days in advance, depart on a Sunday or Wednesday and return on a Monday

Cheap flight deals from Seattle to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Perth (PER). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,151
(Trip.com)

One-way from

$953
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$1,478
Provider with most accurate pricing for Seattle/Tacoma Intl-Perth flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Perth flights.
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From Seattle/Tacoma Intl to Perth
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One-way flight from Seattle/Tacoma Intl to Perth
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Highest demand for flights based on searches. 5% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Perth

Cheapest flights from Seattle to Perth
Explore the most affordable flight options available from Seattle to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Trip.com deal was found by Cheapflights users on 3/26. 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.
Mon 9/11:40 amSEA - PER
2 stops48h 30mMultiple Airlines
Fri 9/129:55 pmPER - SEA
2 stops36h 50mMultiple Airlines
Deal found 3/26$1,105
This SmartFares deal was found by Cheapflights users on 3/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/104:30 pmSEA - PER
1 stop35h 10mQatar Airways
Sat 5/1710:45 pmPER - SEA
1 stop29h 00mQatar Airways
Deal found 3/26$1,267
This StudentUniverse deal was found by Cheapflights users on 3/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:15 amSEA - PER
1 stop22h 40mSingapore Airlines
Tue 10/75:10 pmPER - SEA
2 stops38h 45mSingapore Airlines
Deal found 3/27$1,291
This Air Canada deal was found by Cheapflights users on 3/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:00 amSEA - PER
2 stops44h 30mAir Canada
Mon 7/2111:35 pmPER - SEA
2 stops24h 46mAir Canada
Deal found 3/26$1,575
This Gurufare deal was found by Cheapflights users on 3/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/34:00 pmSEA - PER
2 stops28h 15mQantas Airways
Fri 7/1810:30 amPER - SEA
2 stops26h 14mQantas Airways
Deal found 3/26$1,630
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 5/75:13 pmSEA - PER
2 stops27h 27mUnited Airlines
Tue 5/2711:45 pmPER - SEA
3 stops36h 26mUnited Airlines
Deal found 3/25$1,722

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Seattle to Perth that are best for you.

Fly from

Seattle

Fly to

Perth

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 5/10

1:10 am-5:10 pm

2 stops49h 00m

Perth

Sun 5/18

6:25 pm-7:30 pm

2 stops40h 05m

$1,151

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 5/10

4:30 pm-6:40 pm

1 stop35h 10m

Perth

Sat 5/17

10:45 pm-12:45 pm

1 stop29h 00m

$1,267

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 6/2

10:00 am-9:30 pm

2 stops44h 30m

Perth

Mon 7/21

11:35 pm-9:21 am

2 stops24h 46m

$1,575

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 6/3

4:00 pm-11:15 am

2 stops28h 15m

Perth

Fri 7/18

10:30 am-9:44 pm

2 stops26h 14m

$1,630

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 5/5

6:25 pm-12:30 pm

3 stops51h 05m

Perth

Tue 5/27

5:10 pm-10:59 pm

2 stops44h 49m

$1,636

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 5/7

5:13 pm-11:40 am

2 stops27h 27m

Perth

Tue 5/27

11:45 pm-9:11 pm

3 stops36h 26m

$1,722

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 4/10

4:30 pm-6:40 pm

1 stop35h 10m

$953

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 4/10

11:30 am-7:45 am

2 stops53h 15m

$974

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 4/10

10:15 am-12:30 pm

1 stop35h 15m

$1,211

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 4/9

1:15 am-10:40 pm

2 stops30h 25m

$4,912

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Seattle to Perth

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Perth in March.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Perth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Perth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Perth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Perth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Perth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Perth

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

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

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

To ensure you get the cheapest price possible for a flight from Seattle to Perth, you should look to book at least 60 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 Seattle to Perth?

Currently, February is the cheapest month in which you can book a flight from Seattle to Perth (average of $1,447). Flying from Seattle to Perth in December is currently the most expensive (average of $2,172). 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 SEA to PER?

Find hourly flight availability from Seattle to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Seattle to Perth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 12% versus a flight in the morning.

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 - 6.7 inches per month. June is typically the wettest month, when rainfall can reach 6.7 in. January is typically the driest time to visit Perth when rainfall is around 0.0 in.

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 75.2 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 53.6 F).

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 March 28, 2025.
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very good
829 reviews
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Singapore Airlines
8.1
Very good
1,285 reviews
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Emirates
8.0
Very good
3,190 reviews
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Cathay Pacific
7.5
Good
837 reviews
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Qatar Airways
7.4
Good
3,538 reviews
ANA
8.3
Very good
829 reviews

Overall

8.3

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Crew

8.7

Food

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Perth. 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 Seattle to Perth round-trip?

    Currently priced at $1,269, Qatar Airways will fly you from Seattle to Perth and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and United Airlines - these airlines can fly you to your destination from $1,495 and $2,043, respectively. Users have found that Qatar Airways is 20% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Qatar Airways, which is currently one of the cheapest options available, starting at $953. Cathay Pacific flights start at $974 while deals on Singapore Airlines start at $2,707 one-way.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Perth (average of $1,447). Flying from Seattle to Perth in December is currently the most expensive (average of $2,172). 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 Seattle?

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

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Alternative routes for Seattle to Perth

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

Top 3 airlines flying from Seattle to Perth

Discover the top 3 airlines that operate flights from Seattle to Perth. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,165Average$1,388FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$1,199Average$1,524FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,335Average$1,653FlexibilityNo cancel feeOn-time68%
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