What is the cheapest airline that flies from Seattle/Tacoma Intl to Perth?

American Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Perth

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 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 connection time from Seattle to Perth?

Singapore (SIN) has the shortest average layover time for this route: 1h 48m.

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 1 as of May 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.

$567 Cheap Flights from Seattle to Perth in 2026

Q: 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 $1,564 to $1,312. The lowest price recently found on this route was $1,204.

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Perth

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 12:25 pm

PER

SEA

28h 40m

1 stop

$1,204Qatar Airways

Wed, Aug 26 - Mon, Sep 7

8:45 am - 12:35 pm

SEA

PER

35h 50m

1 stop

1:15 am - 7:10 am

PER

SEA

21h 55m

1 stop

$1,226Singapore Airlines

Wed, Nov 11 - Tue, Nov 24

10:15 am - 5:10 am

SEA

PER

27h 55m

1 stop

5:05 pm - 7:10 am

PER

SEA

30h 05m

1 stop

$1,239Singapore Airlines

Tue, Oct 20 - Tue, Nov 17

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 12:25 pm

PER

SEA

28h 40m

1 stop

$1,251Qatar Airways

Mon, Aug 17 - Mon, Sep 14

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 12:25 pm

PER

SEA

28h 40m

1 stop

$1,255Qatar Airways

Mon, Aug 17 - Mon, Sep 14

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 9:40 pm

PER

SEA

37h 55m

2 stops

$1,268Multiple Airlines

Mon, Aug 17 - Mon, Sep 14

10:15 am - 12:30 pm

SEA

PER

35h 15m

1 stop

1:45 pm - 8:45 am

PER

SEA

34h 00m

1 stop

$1,283Singapore Airlines

Thu, Sep 3 - Sat, Oct 3

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 12:25 pm

PER

SEA

28h 40m

1 stop

$1,295Qatar Airways

Thu, Sep 3 - Sat, Oct 3

9:59 am - 6:35 pm

SEA

PER

41h 36m

2 stops

10:45 pm - 11:40 am

PER

SEA

28h 55m

1 stop

$1,298Qatar Airways

Tue, Oct 20 - Tue, Nov 17

10:47 am - 6:35 pm

SEA

PER

40h 48m

2 stops

10:45 pm - 7:56 pm

PER

SEA

36h 11m

2 stops

$1,324Qatar Airways

Thu, Oct 1 - Fri, Oct 9

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets

Qatar Airways

Aug 26

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 7

PER10:45 pmPerth

28h 40m

1 stop

SEA12:25 pmSeattle/Tacoma Intl

$1,204

Qatar Airways

Aug 17

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 14

PER10:45 pmPerth

28h 40m

1 stop

SEA12:25 pmSeattle/Tacoma Intl

$1,251

Qatar Airways

Aug 17

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Sep 14

PER10:45 pmPerth

28h 40m

1 stop

SEA12:25 pmSeattle/Tacoma Intl

$1,255

United Airlines flights from Seattle to Perth

Our best United Airlines deals on Seattle to Perth flight tickets

United Airlines

Jul 24

SEA7:05 pmSeattle/Tacoma Intl

28h 35m

2 stops

PER2:40 pmPerth

Aug 9

PER11:55 pmPerth

36h 15m

3 stops

SEA9:10 pmSeattle/Tacoma Intl

$1,698

United Airlines

Aug 1

SEA8:45 amSeattle/Tacoma Intl

36h 45m

2 stops

PER12:30 pmPerth

Oct 31

PER3:15 pmPerth

45h 57m

3 stops

SEA10:12 pmSeattle/Tacoma Intl

$1,705

United Airlines

Oct 20

SEA7:28 pmSeattle/Tacoma Intl

28h 12m

2 stops

PER2:40 pmPerth

Nov 17

PER11:45 pmPerth

37h 27m

3 stops

SEA9:12 pmSeattle/Tacoma Intl

$1,709

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 8/26

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/7

10:45 pm-12:25 pm

1 stop28h 40m

$1,204

Quickest round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 11/11

8:45 am-12:35 pm

1 stop35h 50m

Perth

Tue 11/24

1:15 am-7:10 am

1 stop21h 55m

$1,226

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 10/20

10:15 am-5:10 am

1 stop27h 55m

Perth

Tue 11/17

5:05 pm-7:10 am

1 stop30h 05m

$1,239

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:25 pm

1 stop28h 40m

$1,251

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-12:25 pm

1 stop28h 40m

$1,255

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Mon 9/14

10:45 pm-9:40 pm

2 stops37h 55m

$1,268

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 9/3

10:15 am-12:30 pm

1 stop35h 15m

Perth

Sat 10/3

1:45 pm-8:45 am

1 stop34h 00m

$1,283

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 9/3

4:25 pm-6:35 pm

1 stop35h 10m

Perth

Sat 10/3

10:45 pm-12:25 pm

1 stop28h 40m

$1,295

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 10/20

9:59 am-6:35 pm

2 stops41h 36m

Perth

Tue 11/17

10:45 pm-11:40 am

1 stop28h 55m

$1,298

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 10/1

10:47 am-6:35 pm

2 stops40h 48m

Perth

Fri 10/9

10:45 pm-7:56 pm

2 stops36h 11m

$1,324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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

What is the cheapest month to fly to Perth?

In general, August 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 $1,232. If you are unable to visit Perth during the month of August, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $1,292.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 54% 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	29h 06m
Direct flights	None

The fastest flight from Seattle to Perth takes 29h 06m

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?
There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 29h 06m 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 1 as of May 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 (100% of total bookings).

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
Singapore Airlines	PriceFrom $1,172	Free Cancellation	Rating 8.2 1,525 reviews		Search Singapore Airlines flights

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.