Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Perth from $1,113

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 23/5. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,724Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,726Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Qatar Airways Logo
22:45 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,731Qatar Airways
Mon, 17 Aug - Mon, 14 Sep
Qatar Airways Logo
17:05 - 12:15
SEA
-
PER
28h 10m
1 stop
Qatar Airways Logo
22:45 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,737Qatar Airways
Mon, 1 Jun - Tue, 30 Jun
Multiple Airlines Logo
16:25 - 18:35
SEA
-
PER
35h 10m
1 stop
Multiple Airlines Logo
22:45 - 19:07
PER
-
SEA
35h 22m
2 stops
$1,749Multiple 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 - 19:07
PER
-
SEA
35h 22m
2 stops
$1,751Multiple Airlines
Mon, 17 Aug - Mon, 14 Sep
Singapore Airlines Logo
10:15 - 05:10
SEA
-
PER
27h 55m
1 stop
Singapore Airlines Logo
13:45 - 08:45
PER
-
SEA
34h 00m
1 stop
$1,770Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Singapore Airlines Logo
10:15 - 12:30
SEA
-
PER
35h 15m
1 stop
Singapore Airlines Logo
13:45 - 08:45
PER
-
SEA
34h 00m
1 stop
$1,771Singapore Airlines
Thu, 3 Sep - Sat, 3 Oct
Qatar Airways Logo
17:05 - 12:15
SEA
-
PER
28h 10m
1 stop
Qatar Airways Logo
22:45 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,797Qatar Airways
Thu, 11 Jun - Wed, 17 Jun
Qatar Airways Logo
17:05 - 12:15
SEA
-
PER
28h 10m
1 stop
Qatar Airways Logo
22:45 - 12:25
PER
-
SEA
28h 40m
1 stop
$1,831Qatar Airways
Mon, 1 Jun - Tue, 30 Jun

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets
Singapore Airlines
3 Sept
SEA10:15Seattle/Tacoma Intl
27h 55m
1 stop
PER05:10Perth
3 Oct
PER13:45Perth
34h 00m
1 stop
SEA08:45Seattle/Tacoma Intl
$1,770
Singapore Airlines
3 Sept
SEA10:15Seattle/Tacoma Intl
35h 15m
1 stop
PER12:30Perth
3 Oct
PER13:45Perth
34h 00m
1 stop
SEA08:45Seattle/Tacoma Intl
$1,771

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets
Qatar Airways
17 Aug
SEA16:25Seattle/Tacoma Intl
35h 10m
1 stop
PER18:35Perth
14 Sept
PER22:45Perth
28h 40m
1 stop
SEA12:25Seattle/Tacoma Intl
$1,724
Qatar Airways
17 Aug
SEA16:25Seattle/Tacoma Intl
35h 10m
1 stop
PER18:35Perth
14 Sept
PER22:45Perth
28h 40m
1 stop
SEA12:25Seattle/Tacoma Intl
$1,726
Qatar Airways
17 Aug
SEA16:25Seattle/Tacoma Intl
35h 10m
1 stop
PER18:35Perth
14 Sept
PER22:45Perth
28h 40m
1 stop
SEA12:25Seattle/Tacoma Intl
$1,731

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 11 May 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

22:45-12:25

1 stop28h 40m

$1,724

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-12:25

1 stop28h 40m

$1,726

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-12:25

1 stop28h 40m

$1,731
Fastest return journey

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 1/6

17:05-12:15

1 stop28h 10m

Perth

Tue 30/6

22:45-12:25

1 stop28h 40m

$1,737

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-19:07

2 stops35h 22m

$1,749

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 17/8

16:25-18:35

1 stop35h 10m

Perth

Mon 14/9

22:45-19:07

2 stops35h 22m

$1,751

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-05:10

1 stop27h 55m

Perth

Sat 3/10

13:45-08:45

1 stop34h 00m

$1,770

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 3/9

10:15-12:30

1 stop35h 15m

Perth

Sat 3/10

13:45-08:45

1 stop34h 00m

$1,771

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 11/6

17:05-12:15

1 stop28h 10m

Perth

Wed 17/6

22:45-12:25

1 stop28h 40m

$1,797

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 1/6

17:05-12:15

1 stop28h 10m

Perth

Tue 30/6

22:45-12:25

1 stop28h 40m

$1,831

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Seattle and Perth?

What is the cheapest month to fly to Perth?

The month of August is, on average, the cheapest month to fly to Perth from Seattle, with most prices found around $1,699. If you’re not able to fly to Perth in August, then February is your next best option. Flight prices from Seattle to Perth during February average around $1,782.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 2% 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

28h 10m

Direct flights

None
The fastest flight from Seattle to Perth takes 28h 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 28h 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/6
Wed 17/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia