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Cheap flights from Seattle to Perth from $571

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 2/8. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
10:15 am - 11:55 pm
SEA
-
PER
22h 40m1 stop
Singapore Airlines Logo
1:10 am - 8:45 am
PER
-
SEA
22h 35m1 stop
$1,100Singapore Airlines
ث, أبريل 7 - ن, أبريل 27
Singapore Airlines Logo
10:15 am - 11:55 pm
SEA
-
PER
22h 40m1 stop
Singapore Airlines Logo
1:10 am - 8:45 am
PER
-
SEA
22h 35m1 stop
$1,111Singapore Airlines
ث, أبريل 7 - ن, أبريل 27
Singapore Airlines Logo
10:15 am - 5:10 am
SEA
-
PER
27h 55m1 stop
Singapore Airlines Logo
6:25 am - 8:45 am
PER
-
SEA
41h 20m1 stop
$1,131Singapore Airlines
س, مايو 2 - ر, مايو 13
Singapore Airlines Logo
8:45 am - 12:35 pm
SEA
-
PER
35h 50m1 stop
Singapore Airlines Logo
1:15 am - 8:10 am
PER
-
SEA
21h 55m1 stop
$1,135Singapore Airlines
ث, مارس 3 - ن, مارس 16
Multiple Airlines Logo
10:15 am - 11:55 pm
SEA
-
PER
22h 40m1 stop
Multiple Airlines Logo
1:10 am - 2:42 pm
PER
-
SEA
28h 32m2 stops
$1,138Multiple Airlines
ث, أبريل 7 - ن, أبريل 27
Multiple Airlines Logo
10:15 am - 12:30 pm
SEA
-
PER
35h 15m1 stop
Multiple Airlines Logo
1:10 am - 2:42 pm
PER
-
SEA
28h 32m2 stops
$1,139Multiple Airlines
ث, أبريل 7 - ن, أبريل 27
Multiple Airlines Logo
11:30 pm - 4:15 am
SEA
-
PER
60h 45m2 stops
Multiple Airlines Logo
5:35 am - 5:30 pm
PER
-
SEA
27h 55m2 stops
$1,148Multiple Airlines
ث, فبراير 3 - ث, مارس 3
Multiple Airlines Logo
9:30 pm - 7:20 am
SEA
-
PER
41h 50m1 stop
Multiple Airlines Logo
10:30 am - 10:55 am
PER
-
SEA
39h 25m2 stops
$1,193Multiple Airlines
ر, مارس 4 - ث, مارس 10
Multiple Airlines Logo
8:45 am - 5:25 am
SEA
-
PER
28h 40m1 stop
Multiple Airlines Logo
1:15 am - 1:55 pm
PER
-
SEA
27h 40m2 stops
$1,194Multiple Airlines
ث, مارس 3 - ن, مارس 16
Multiple Airlines Logo
8:45 am - 4:15 am
SEA
-
PER
27h 30m1 stop
Multiple Airlines Logo
5:45 pm - 6:10 pm
PER
-
SEA
40h 25m2 stops
$1,218Multiple Airlines
ج, فبراير 20 - ج, فبراير 27

Cathay Pacific flights from Seattle to Perth

Our best Cathay Pacific deals on Seattle to Perth flight tickets
Cathay Pacific
Apr 7
SEA6:59 pmSeattle/Tacoma Intl
36h 41m
2 stops
PER10:40 pmPerth
Apr 27
PER12:10 amPerth
45h 54m
2 stops
SEA7:04 amSeattle/Tacoma Intl
$1,346
Find similar
Cathay Pacific
May 2
SEA6:21 amSeattle/Tacoma Intl
34h 24m
2 stops
PER7:45 amPerth
May 12
PER12:10 amPerth
25h 00m
1 stop
SEA10:10 amSeattle/Tacoma Intl
$1,359
Find similar
Cathay Pacific
Jan 12
SEA5:59 pmSeattle/Tacoma Intl
44h 56m
2 stops
PER6:55 amPerth
Feb 9
PER8:30 amPerth
28h 22m
2 stops
SEA8:52 pmSeattle/Tacoma Intl
$1,360
Find similar

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets
Singapore Airlines
Apr 7
SEA10:15 amSeattle/Tacoma Intl
22h 40m
1 stop
PER11:55 pmPerth
Apr 27
PER1:10 amPerth
22h 35m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,100
Find similar
Singapore Airlines
Apr 7
SEA10:15 amSeattle/Tacoma Intl
22h 40m
1 stop
PER11:55 pmPerth
Apr 27
PER1:10 amPerth
22h 35m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,111
Find similar
Singapore Airlines
May 2
SEA10:15 amSeattle/Tacoma Intl
27h 55m
1 stop
PER5:10 amPerth
May 13
PER6:25 amPerth
41h 20m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,131
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated يناير 8, 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

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 4/7

10:15 am-11:55 pm

1 stop22h 40m

Perth

ن 4/27

1:10 am-8:45 am

1 stop22h 35m

$1,100

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 4/7

10:15 am-11:55 pm

1 stop22h 40m

Perth

ن 4/27

1:10 am-8:45 am

1 stop22h 35m

$1,111

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

س 5/2

10:15 am-5:10 am

1 stop27h 55m

Perth

ر 5/13

6:25 am-8:45 am

1 stop41h 20m

$1,131

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 3/3

8:45 am-12:35 pm

1 stop35h 50m

Perth

ن 3/16

1:15 am-8:10 am

1 stop21h 55m

$1,135

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 4/7

10:15 am-11:55 pm

1 stop22h 40m

Perth

ن 4/27

1:10 am-2:42 pm

2 stops28h 32m

$1,138

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 4/7

10:15 am-12:30 pm

1 stop35h 15m

Perth

ن 4/27

1:10 am-2:42 pm

2 stops28h 32m

$1,139

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 2/3

11:30 pm-4:15 am

2 stops60h 45m

Perth

ث 3/3

5:35 am-5:30 pm

2 stops27h 55m

$1,148

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ر 3/4

9:30 pm-7:20 am

1 stop41h 50m

Perth

ث 3/10

10:30 am-10:55 am

2 stops39h 25m

$1,193

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ث 3/3

8:45 am-5:25 am

1 stop28h 40m

Perth

ن 3/16

1:15 am-1:55 pm

2 stops27h 40m

$1,194

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

ج 2/20

8:45 am-4:15 am

1 stop27h 30m

Perth

ج 2/27

5:45 pm-6:10 pm

2 stops40h 25m

$1,218

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

In general, February is the cheapest month to fly from Seattle to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,258. If you are unable to visit Perth during the month of February, then departing from Seattle during the month September is also very affordable. Most momondo users find prices during this month for around $1,290.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 28% 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 round-trip 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

27h 30m

Direct flights

None
The fastest flight from Seattle to Perth takes 27h 30m
There are no direct flights from Seattle to Perth. There are no popular flight routes from Seattle to Perth.
Search flight deals

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

    There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 27h 30m is a normal flight duration for this route.

  • 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 were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Perth Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 travel and health documents you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Perth?

Best airlines flying from Seattle to Perth

Compare and see reviews for airlines that fly from Seattle to Perth with momondo
Airline
Rating
Free Cancellation
Price
Qatar AirwaysPriceFrom $928Free CancellationRating
7.4
3,701 reviews
Search Qatar Airways flights
Qantas AirwaysPriceFrom $1,258Free CancellationRating
7.5
967 reviews
Search Qantas Airways flights
Singapore AirlinesPriceFrom $1,265Free CancellationRating
8.1
1,429 reviews
Search Singapore Airlines flights

Traveling to a place near Perth?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Perth. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Seattle to Perth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Perth from Seattle.

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

Price alerts on flights to Perth from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Perth trip

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