Find flights
When to book
FAQs

Cheap flights from Seattle to Perth from $732

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
25 jul. — 1 ago.1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Perth

Enter your travel dates to find the best prices.

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 25 junio 2026.

lun. 17/816:25
SEA
-
PER
1 stop35h 10m
Qatar Airways
lun. 14/922:45
PER
-
SEA
1 stop29h 00m
Qatar Airways
Deal found 24/6$1,798
lun. 17/816:25
SEA
-
PER
1 stop35h 10m
Multiple Airlines
lun. 14/922:45
PER
-
SEA
2 stops36h 47m
Multiple Airlines
Deal found 24/6$1,835
mar. 18/816:25
SEA
-
PER
1 stop35h 10m
Qatar Airways
mié. 9/922:45
PER
-
SEA
1 stop29h 00m
Qatar Airways
Deal found 22/6$1,898
sáb. 17/1010:15
SEA
-
PER
1 stop35h 15m
Singapore Airlines
vie. 30/1001:15
PER
-
SEA
1 stop21h 55m
Singapore Airlines
Deal found 21/6$1,906
jue. 3/916:25
SEA
-
PER
1 stop35h 10m
Qatar Airways
sáb. 3/1022:45
PER
-
SEA
1 stop28h 40m
Qatar Airways
Deal found 24/6$1,955
dom. 15/1108:45
SEA
-
PER
1 stop23h 10m
Singapore Airlines
lun. 30/1106:40
PER
-
SEA
1 stop40h 30m
Singapore Airlines
Deal found 21/6$1,961
lun. 14/916:25
SEA
-
PER
1 stop35h 10m
Qatar Airways
sáb. 19/922:45
PER
-
SEA
1 stop29h 00m
Qatar Airways
Deal found 22/6$1,968
sáb. 17/1009:59
SEA
-
PER
2 stops41h 36m
Qatar Airways
sáb. 31/1022:45
PER
-
SEA
1 stop28h 55m
Qatar Airways
Deal found 21/6$1,994
sáb. 17/1011:00
SEA
-
PER
2 stops51h 50m
Multiple Airlines
sáb. 31/1017:50
PER
-
SEA
1 stop29h 20m
Multiple Airlines
Deal found 21/6$2,023
lun. 5/1013:19
SEA
-
PER
2 stops34h 21m
United Airlines
mar. 20/1023:45
PER
-
SEA
2 stops26h 50m
United Airlines
Deal found 21/6$2,037

Find 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 25 junio 2026.

Round-trip from

$1,798

One-way from

$732

Popular in

July

Cheapest in

June

Average price

$1,784
Qatar Airways
  • Qatar Airways
  • 17/8-14/9
  • 2 total stops
  • 64h 10m total
  • Seattle to Perth
Search Deals
6/9
  • 6/9
  • 1 total stop
  • 27h 05m total
  • Seattle to Perth
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 25 junio 2026.
Use the filters below to find and compare flights from Seattle to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

lun. 17/8

16:25-18:35

1 stop35h 10m

Perth

lun. 14/9

22:45-20:32

2 stops36h 47m

$1,835

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mar. 3/11

15:50-18:45

1 stop34h 55m

Perth

mar. 24/11

22:45-11:40

1 stop28h 55m

$1,936

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mié. 4/11

15:50-18:45

1 stop34h 55m

Perth

jue. 19/11

22:45-11:40

1 stop28h 55m

$1,936

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

dom. 15/11

19:35-14:45

2 stops27h 10m

Perth

lun. 30/11

23:45-12:12

2 stops28h 27m

$2,037

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mié. 4/11

19:35-14:45

2 stops27h 10m

Perth

mar. 24/11

23:45-19:30

2 stops35h 45m

$2,037
Fastest return journey

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mar. 3/11

19:35-14:30

2 stops26h 55m

Perth

lun. 23/11

23:45-12:20

2 stops28h 35m

$2,048

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mar. 3/11

18:15-14:30

2 stops28h 15m

Perth

dom. 22/11

23:45-12:20

2 stops28h 35m

$2,048

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

mié. 4/11

18:15-14:45

2 stops28h 30m

Perth

sáb. 21/11

15:15-14:26

2 stops39h 11m

$2,048

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

vie. 20/11

08:45-04:15

1 stop27h 30m

Perth

dom. 29/11

17:30-13:55

2 stops36h 25m

$2,235

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

lun. 14/9

16:25-20:25

2 stops37h 00m

Perth

sáb. 19/9

22:45-12:45

1 stop29h 00m

$2,319

Flights are sorted by cheapest return flights first.

Deals found on 24/6

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 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 Seattle to Perth

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

Currently, June is the cheapest month in which you can book a flight from Seattle to Perth (average of $1,784). Flying from Seattle to Perth in July is currently the most expensive (average of $2,921). 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.

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.

  • How long is the flight from Seattle to Perth?

    For as low as $2,037, Qatar Airways can have you in Perth from Seattle in 27h 10m. Seattle and Perth are separated by a distance of 14862 km. This flight may include one or multiple stops.

  • 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 holiday 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, June is the cheapest month in which you can book a flight from Seattle to Perth (average of $1,784). Flying from Seattle to Perth in July is currently the most expensive (average of $2,921). 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
Fremantle
Scarborough
Rottnest Island
Mandurah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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 Seattle to Perth?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Perth. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Perth for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Perth from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Seattle to Perth and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.