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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
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 11/23
9:30 pm-7:20 am
1 stop41h 50m
Perth
Mon 11/30
8:35 am-6:45 pm
1 stop26h 10m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 2/8
9:30 pm-7:20 am
1 stop41h 50m
Perth
Mon 2/15
8:35 am-6:45 pm
1 stop26h 10m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Tue 2/23
10:25 am-10:55 pm
1 stop44h 30m
Perth
Sun 3/14
8:30 am-8:45 am
1 stop40h 15m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Tue 10/27
11:25 am-10:55 pm
1 stop44h 30m
Perth
Mon 11/23
8:35 am-6:45 pm
1 stop26h 10m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Tue 11/24
8:40 am-12:05 am
1 stop23h 25m
Perth
Tue 12/1
6:40 am-7:05 am
1 stop40h 25m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Sat 3/20
9:40 am-12:05 am
1 stop23h 25m
Perth
Fri 4/16
1:45 pm-8:45 am
1 stop34h 00m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Sat 3/20
9:40 am-12:05 am
1 stop23h 25m
Perth
Fri 4/16
1:45 pm-8:45 am
1 stop34h 00m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 1/11
5:47 pm-11:55 am
2 stops50h 08m
Perth
Mon 1/25
10:45 pm-9:26 pm
2 stops38h 41m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Sat 1/16
3:50 pm-11:55 am
1 stop28h 05m
Perth
Sat 1/30
10:45 pm-11:40 am
1 stop28h 55m
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Sat 3/20
8:45 am-11:55 am
2 stops36h 10m
Perth
Fri 4/16
10:45 pm-12:55 pm
1 stop29h 10m
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?
Prices are currently low for flights on this route.
Typical prices usually range from $1,287 to $1,401.The lowest price recently found on this route was $1,114.
What is the cheapest month to fly to Perth?
In general, July 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 $0. If you are unable to visit Perth during the month of July, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $0.
Can stopping save me money on Seattle to Perth flights?
You could potentially save up to 5% on your flight if you consider stops on a Seattle to Perth flight.
Which airport is the most popular layover for flights between Seattle and Perth?
Hong Kong (HKG) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Seattle to Perth?
Flights via Singapore (SIN) offer the lowest average round-trip price of $1,291.
Which layover airport has the shortest travel time from Seattle to Perth?
Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 23h 10m.
Which layover airport has the shortest connection time from Seattle to Perth?
Singapore (SIN) has the shortest average layover time for this route: 1h 48m.
When to book flights from Seattle to Perth
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
Frequently asked questions about flying from Seattle to Perth
How far is Seattle/Tacoma Intl to Perth by plane?
There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 23h 25m 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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Perth Airport is 2 as of October 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Perth is Singapore Airlines (78% of total bookings). The next most popular airline is Qatar Airways (22%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $1,232 | Free Cancellation | Rating 8.2 1,623 reviews | |||
| PriceFrom $1,240 | Free Cancellation | Rating 7.3 3,719 reviews |
Traveling to a place near Perth?
Book flights to Perth if you plan to visit one of these locationsWhy 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.