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Perth

$525+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$954
(Trip.com)

One-way from

$525
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,452
From Seattle/Tacoma Intl to Perth
Search Deals
One-way flight from Seattle/Tacoma Intl to Perth
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Highest demand for flights based on searches. 13% potential increase in price ($237 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 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 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 junio 12, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/211:55 pmSEA - PER
2 stops28h 20mMultiple Airlines
sáb. 11/229:30 pmPER - SEA
2 stops38h 05mMultiple Airlines
Deal found 6/9$954
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:20 pmSEA - PER
2 stops35h 00mQantas Airways
vie. 11/288:00 amPER - SEA
2 stops26h 51mQantas Airways
Deal found 6/11$1,226
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/28:45 amSEA - PER
1 stop38h 00mSingapore Airlines
vie. 11/211:10 amPER - SEA
1 stop22h 00mSingapore Airlines
Deal found 6/9$1,357
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/272:30 pmSEA - PER
2 stops29h 45mAmerican Airlines
dom. 8/311:55 pmPER - SEA
2 stops29h 05mAmerican Airlines
Deal found 6/12$1,383
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/258:42 amSEA - PER
2 stops33h 53mCathay Pacific
sáb. 11/812:15 amPER - SEA
2 stops58h 22mCathay Pacific
Deal found 6/10$1,439
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/266:45 amSEA - PER
2 stops42h 15mAir New Zealand
sáb. 8/27:50 pmPER - SEA
2 stops41h 26mAir New Zealand
Deal found 6/11$1,552
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/125:35 pmSEA - PER
2 stops30h 05mUnited Airlines
mar. 6/1711:45 pmPER - SEA
3 stops36h 26mUnited Airlines
Deal found 6/10$1,590
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/173:40 pmSEA - PER
1 stop35h 05mQatar Airways
vie. 11/2810:45 pmPER - SEA
1 stop29h 00mQatar Airways
Deal found 6/11$2,199

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 junio 12, 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

dom. 11/2

11:55 pm-8:15 pm

2 stops28h 20m

Perth

sáb. 11/22

9:30 pm-7:35 pm

2 stops38h 05m

$954

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

lun. 11/17

2:20 pm-5:20 pm

2 stops35h 00m

Perth

vie. 11/28

8:00 am-6:51 pm

2 stops26h 51m

$1,226

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

dom. 11/2

8:45 am-2:45 pm

1 stop38h 00m

Perth

vie. 11/21

1:10 am-7:10 am

1 stop22h 00m

$1,357

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

dom. 7/27

2:30 pm-11:15 am

2 stops29h 45m

Perth

dom. 8/3

11:55 pm-2:00 pm

2 stops29h 05m

$1,383

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

sáb. 10/25

8:42 am-9:35 am

2 stops33h 53m

Perth

sáb. 11/8

12:15 am-6:37 pm

2 stops58h 22m

$1,439

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

sáb. 7/26

6:45 am-4:00 pm

2 stops42h 15m

Perth

sáb. 8/2

7:50 pm-10:16 pm

2 stops41h 26m

$1,552

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mié. 7/23

6:45 am-2:40 pm

2 stops40h 55m

Perth

mié. 7/30

11:45 pm-3:46 pm

2 stops31h 01m

$1,609

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

lun. 11/17

3:40 pm-6:45 pm

1 stop35h 05m

Perth

vie. 11/28

10:45 pm-11:45 am

1 stop29h 00m

$2,199

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

lun. 11/17

7:30 am-8:20 pm

3 stops44h 50m

Perth

vie. 11/28

10:45 pm-9:16 am

2 stops26h 31m

$2,555

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

vie. 11/14

12:10 am-4:00 am

3 stops35h 50m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 15 results
1
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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 June 9, 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 $1,456). 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 junio 12, 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 junio 12, 2025.
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,302 reviews
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air New Zealand
8.0
Very good
483 reviews
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Cathay Pacific
7.6
Good
892 reviews
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qantas Airways
7.5
Good
854 reviews
Emirates
8.1
Very good
3,264 reviews

Food

7.8

Overall

8.1

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 $1,226, Qantas Airways will fly you from Seattle to Perth and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and American Airlines - these airlines can fly you to your destination from $1,357 and $1,383, respectively. Users have found that Qantas 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 Qantas Airways, which is currently one of the cheapest options available, starting at $597. Philippine Airlines flights start at $765 while deals on Singapore Airlines start at $828 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 $1,456). 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
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 4 airlines flying from Seattle to Perth

Discover the top 4 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,165Average$1,388FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$1,251Average$1,544FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,315Average$1,712FlexibilityNo cancel feeOn-time68%
Qantas AirwaysCheapest$1,378Average$1,473FlexibilityNo cancel feeOn-time74%

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