What airlines fly to Perth?

Singapore Airlines, Qantas Airways and Qatar Airways are the top three most popular airlines that fly to Perth from Seattle according to our data. Singapore Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Perth. Keep in mind that there are 3 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.

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

Qatar Airways is the most popular carrier operating from Seattle/Tacoma Intl to Perth

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 3 as of March 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.

$406 Cheap Flights from Seattle to Perth in 2026

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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.

1:15 am - 7:50 pm

SEA

PER

51h 35m

2 stops

8:50 pm - 7:15 pm

PER

SEA

37h 25m

2 stops

$1,106Multiple Airlines

Sun, May 3 - Mon, May 11

10:15 am - 11:55 pm

SEA

PER

22h 40m

1 stop

4:55 pm - 8:45 am

PER

SEA

30h 50m

1 stop

$1,168Singapore Airlines

Thu, Sep 3 - Sat, Oct 3

10:15 am - 12:30 pm

SEA

PER

35h 15m

1 stop

6:25 am - 8:45 am

PER

SEA

41h 20m

1 stop

$1,169Singapore Airlines

Thu, Sep 3 - Sat, Oct 3

1:15 am - 5:10 pm

SEA

PER

48h 55m

2 stops

6:25 pm - 7:15 pm

PER

SEA

39h 50m

2 stops

$1,244Multiple Airlines

Tue, May 5 - Wed, May 13

5:12 pm - 2:40 pm

SEA

PER

30h 28m

2 stops

4:55 pm - 8:45 am

PER

SEA

30h 50m

1 stop

$1,256Multiple Airlines

Mon, Aug 17 - Mon, Sep 14

10:15 am - 7:40 pm

SEA

PER

42h 25m

1 stop

5:35 am - 4:10 pm

PER

SEA

25h 35m

2 stops

$1,309Multiple Airlines

Sun, May 3 - Fri, May 29

10:15 am - 7:40 pm

SEA

PER

42h 25m

1 stop

5:35 am - 4:10 pm

PER

SEA

25h 35m

2 stops

$1,311Multiple Airlines

Sun, May 3 - Thu, May 28

10:15 am - 11:55 pm

SEA

PER

22h 40m

1 stop

1:10 am - 4:56 pm

PER

SEA

30h 46m

2 stops

$1,315Multiple Airlines

Thu, Sep 3 - Fri, Oct 2

4:25 pm - 6:35 pm

SEA

PER

35h 10m

1 stop

10:45 pm - 12:25 pm

PER

SEA

28h 40m

1 stop

$1,319Qatar Airways

Mon, Aug 17 - Mon, Sep 14

4:25 pm - 11:55 am

SEA

PER

28h 30m

1 stop

3:40 pm - 12:45 pm

PER

SEA

36h 05m

1 stop

$1,322Qatar Airways

Tue, Apr 7 - Tue, Apr 28

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets

Qatar Airways

Mar 29

SEA4:25 pmSeattle/Tacoma Intl

35h 10m

1 stop

PER6:35 pmPerth

Apr 13

PER3:40 pmPerth

36h 05m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,304

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

$1,319

Qatar Airways

Apr 7

SEA4:25 pmSeattle/Tacoma Intl

28h 30m

1 stop

PER11:55 amPerth

Apr 28

PER3:40 pmPerth

36h 05m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$1,322

Cathay Pacific flights from Seattle to Perth

Our best Cathay Pacific deals on Seattle to Perth flight tickets

Cathay Pacific

May 5

SEA8:41 amSeattle/Tacoma Intl

31h 09m

2 stops

PER6:50 amPerth

May 26

PER8:20 amPerth

27h 47m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,522

Cathay Pacific

May 4

SEA8:41 amSeattle/Tacoma Intl

31h 09m

2 stops

PER6:50 amPerth

May 28

PER8:20 amPerth

27h 47m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,523

Cathay Pacific

May 7

SEA8:31 amSeattle/Tacoma Intl

31h 19m

2 stops

PER6:50 amPerth

May 26

PER8:20 amPerth

27h 47m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,529

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 5/3

1:15 am-7:50 pm

2 stops51h 35m

Perth

Mon 5/11

8:50 pm-7:15 pm

2 stops37h 25m

$1,106

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 9/3

10:15 am-11:55 pm

1 stop22h 40m

Perth

Sat 10/3

4:55 pm-8:45 am

1 stop30h 50m

$1,168

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 9/3

10:15 am-12:30 pm

1 stop35h 15m

Perth

Sat 10/3

6:25 am-8:45 am

1 stop41h 20m

$1,169

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 5/5

1:15 am-5:10 pm

2 stops48h 55m

Perth

Wed 5/13

6:25 pm-7:15 pm

2 stops39h 50m

$1,244

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 8/17

5:12 pm-2:40 pm

2 stops30h 28m

Perth

Mon 9/14

4:55 pm-8:45 am

1 stop30h 50m

$1,256

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 5/3

10:15 am-7:40 pm

1 stop42h 25m

Perth

Fri 5/29

5:35 am-4:10 pm

2 stops25h 35m

$1,309

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 5/3

10:15 am-7:40 pm

1 stop42h 25m

Perth

Thu 5/28

5:35 am-4:10 pm

2 stops25h 35m

$1,311

Quickest round-trip

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Thu 9/3

10:15 am-11:55 pm

1 stop22h 40m

Perth

Fri 10/2

1:10 am-4:56 pm

2 stops30h 46m

$1,315

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

$1,319

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

4:25 pm-11:55 am

1 stop28h 30m

Perth

Tue 4/28

3:40 pm-12:45 pm

1 stop36h 05m

$1,322

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

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 $1,292. 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 $1,310.

Can stopping save me money on Seattle to Perth flights?

You could potentially save up to 50% 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	28h 25m
Direct flights	None

The fastest flight from Seattle to Perth takes 28h 25m

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. 28h 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 3 as of March 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 (64% of total bookings). The next most popular airlines are Qantas Airways (23%) and Qatar Airways (14%).

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 $1,218	Free Cancellation	Rating 8.2 1,484 reviews	Search Singapore Airlines flights
Qantas Airways	PriceFrom $1,258	Free Cancellation	Rating 7.5 1,009 reviews	Search Qantas Airways flights
Qatar Airways	PriceFrom $1,325	Free Cancellation	Rating 7.4 3,732 reviews	Search Qatar Airways flights

Fremantle

Mandurah

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.