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Cheap flights from Seattle to Perth from $727

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Perth departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:45
PER
-
SEA
29h 00m
1 stop
$1,789Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
15:50 - 18:45
SEA
-
PER
34h 55m
1 stop
Qatar Airways Logo
22:45 - 11:40
PER
-
SEA
28h 55m
1 stop
$1,805Qatar Airways
Sun, 1 Nov - Mon, 23 Nov
Multiple Airlines Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
22:45 - 20:32
PER
-
SEA
36h 47m
2 stops
$1,823Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Multiple Airlines Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
22:45 - 20:32
PER
-
SEA
36h 47m
2 stops
$1,825Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 11:40
PER
-
SEA
28h 55m
1 stop
$1,845Qatar Airways
Wed, 14 Oct - Sat, 14 Nov
Philippine Airlines Logo
23:55 - 07:15
SEA
-
PER
39h 20m
1 stop
Philippine Airlines Logo
08:30 - 18:35
PER
-
SEA
26h 05m
1 stop
$1,848Philippine Airlines
Mon, 2 Nov - Thu, 19 Nov
Qatar Airways Logo
15:50 - 18:45
SEA
-
PER
34h 55m
1 stop
Qatar Airways Logo
22:45 - 11:40
PER
-
SEA
28h 55m
1 stop
$1,862Qatar Airways
Mon, 2 Nov - Sat, 21 Nov
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:45
PER
-
SEA
29h 00m
1 stop
$1,887Qatar Airways
Tue, 18 Aug - Wed, 9 Sep
Singapore Airlines Logo
10:15 - 12:30
SEA
-
PER
35h 15m
1 stop
Singapore Airlines Logo
01:15 - 08:10
PER
-
SEA
21h 55m
1 stop
$1,894Singapore Airlines
Sat, 17 Oct - Fri, 30 Oct
Qatar Airways Logo
16:50 - 18:45
SEA
-
PER
34h 55m
1 stop
Qatar Airways Logo
22:45 - 11:40
PER
-
SEA
28h 55m
1 stop
$1,920Qatar Airways
Sat, 31 Oct - Sat, 21 Nov

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Philippine Airlines flights from Seattle to Perth

Our best Philippine Airlines deals on Seattle to Perth flight tickets
Philippine Airlines
2 Nov
SEA23:55Seattle/Tacoma Intl
39h 20m
1 stop
PER07:15Perth
19 Nov
PER08:30Perth
26h 05m
1 stop
SEA18:35Seattle/Tacoma Intl
$1,848
Philippine Airlines
30 Oct
SEA23:55Seattle/Tacoma Intl
40h 20m
1 stop
PER07:15Perth
23 Nov
PER08:30Perth
26h 05m
1 stop
SEA18:35Seattle/Tacoma Intl
$1,963

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets
Singapore Airlines
17 Oct
SEA10:15Seattle/Tacoma Intl
35h 15m
1 stop
PER12:30Perth
30 Oct
PER01:15Perth
21h 55m
1 stop
SEA08:10Seattle/Tacoma Intl
$1,894
Singapore Airlines
15 Nov
SEA08:45Seattle/Tacoma Intl
23h 10m
1 stop
PER23:55Perth
30 Nov
PER06:40Perth
40h 30m
1 stop
SEA07:10Seattle/Tacoma Intl
$1,949
Singapore Airlines
21 Nov
SEA08:45Seattle/Tacoma Intl
38h 00m
1 stop
PER14:45Perth
29 Nov
PER06:40Perth
64h 30m
1 stop
SEA07:10Seattle/Tacoma Intl
$2,088

momondo 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, momondo users made 78,305 searches. Data last updated 24 June 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

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-12:45

1 stop29h 00m

$1,789

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 1/11

15:50-18:45

1 stop34h 55m

Perth

Mon 23/11

22:45-11:40

1 stop28h 55m

$1,805

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-20:32

2 stops36h 47m

$1,823

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-20:32

2 stops36h 47m

$1,825

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 14/10

16:25-18:35

1 stop35h 10m

Perth

Sat 14/11

22:45-11:40

1 stop28h 55m

$1,845

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 2/11

23:55-07:15

1 stop39h 20m

Perth

Thu 19/11

08:30-18:35

1 stop26h 05m

$1,848

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 2/11

15:50-18:45

1 stop34h 55m

Perth

Sat 21/11

22:45-11:40

1 stop28h 55m

$1,862

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 18/8

16:25-18:35

1 stop35h 10m

Perth

Wed 9/9

22:45-12:45

1 stop29h 00m

$1,887
Fastest return journey

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 17/10

10:15-12:30

1 stop35h 15m

Perth

Fri 30/10

01:15-08:10

1 stop21h 55m

$1,894

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sat 31/10

16:50-18:45

1 stop34h 55m

Perth

Sat 21/11

22:45-11:40

1 stop28h 55m

$1,920

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Perth from

How to get the cheapest flight ticket from Seattle to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Perth?

The month of June is, on average, the cheapest month to fly to Perth from Seattle, with most prices found around $1,773. If you’re not able to fly to Perth in June, then August is your next best option. Flight prices from Seattle to Perth during August average around $1,774.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 9% on your flight if you consider stops on a Seattle to Perth flight.

How have Seattle to Perth flight prices changed over time?

When to book flights from Seattle to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Perth according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Perth (SEA to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Perth

Fastest flight time

23h 10m

Direct flights

None
The fastest flight from Seattle to Perth takes 23h 10m
There are no direct flights from Seattle to Perth. There are no popular flight routes from Seattle to Perth.
Search flight deals

Frequently asked questions about flying from Seattle to Perth

  • How far is Seattle/Tacoma Intl to Perth by plane?

    A flight from Seattle/Tacoma Intl to Perth will travel around 14868.9 km. Flights usually cover this in 23h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Perth Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Perth Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Perth Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Perth Airport.

  • What documentation or ID do you need to fly to Perth Airport?

    The necessary travel and health documents for your Perth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Perth?

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

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Perth?

Finding the right flight to Perth from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Perth quick and easy, saving you time and money.

Can I find flights from Seattle to Perth with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Perth from Seattle with this policy.

How can momondo help me find flights from Seattle to Perth?

momondo helps you find the best flight between Seattle and Perth by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Perth right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Perth, momondo offers a useful price alert feature which will track prices for flights to Perth from Seattle and alert you when they change.

An easier way to manage your Perth trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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