What is the cheapest airline that flies from Washington to Perth?

Philippine Airlines, Cathay Pacific, and United Airlines are the most popular carriers operating from Washington to Perth

How long does it take to fly to Perth?

Average flight duration from State of Washington to Perth depends on which airport you fly into and out of. Flying from Seattle to Perth is 23h 25m on average, while flying from Spokane to Perth is 38h 25m on average. Perth is the most popular airport in Perth.

When did momondo last update prices for flights from Washington to Perth Airport?

Prices for flights from Washington to Perth Airport are updated daily.

How many operators does momondo search for flights from Washington to Perth Airport?

As of September 2026, there are 2 operators available to choose from for flights from Washington to Perth Airport.

How old do you have to be to fly from Washington to Perth Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

$487 Cheap Flights from Washington to Perth in 2026/27

Find the cheapest flights from Washington to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 pm - 7:20 amSEA Seattle/Tacoma Intl-PER Perth

41h 50m1 stop Manila Ninoy Aquino Intl

8:35 am - 7:45 pmPER Perth-SEA Seattle/Tacoma Intl

26h 10m1 stop Manila Ninoy Aquino Intl

$1,178Philippine Airlines

Mon, Feb 15 - Mon, Mar 15

10:30 pm - 7:15 amSEA Seattle/Tacoma Intl-PER Perth

41h 45m1 stop Manila Ninoy Aquino Intl

8:30 am - 7:35 pmPER Perth-SEA Seattle/Tacoma Intl

26h 05m1 stop Manila Ninoy Aquino Intl

$1,179Philippine Airlines

Thu, Mar 25 - Thu, Apr 8

9:30 pm - 7:20 amSEA Seattle/Tacoma Intl-PER Perth

41h 50m1 stop Manila Ninoy Aquino Intl

8:35 am - 6:45 pmPER Perth-SEA Seattle/Tacoma Intl

26h 10m1 stop Manila Ninoy Aquino Intl

$1,237Philippine Airlines

Mon, Nov 9 - Mon, Nov 16

8:40 am - 5:25 amSEA Seattle/Tacoma Intl-PER Perth

28h 45m1 stop Singapore Changi

1:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

33h 15m1 stop Singapore Changi

$1,243Singapore Airlines

Wed, Nov 18 - Tue, Nov 24

8:40 am - 5:25 amSEA Seattle/Tacoma Intl-PER Perth

28h 45m1 stop Singapore Changi

1:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

33h 15m1 stop Singapore Changi

$1,244Singapore Airlines

Wed, Nov 18 - Tue, Nov 24

11:25 am - 10:55 pmSEA Seattle/Tacoma Intl-PER Perth

44h 30m1 stop Hong Kong Intl

8:30 am - 8:45 amPER Perth-SEA Seattle/Tacoma Intl

40h 15m1 stop Hong Kong Intl

$1,280Cathay Pacific

Mon, Oct 26 - Tue, Nov 24

9:40 am - 12:05 amSEA Seattle/Tacoma Intl-PER Perth

47h 25m1 stop Singapore Changi

1:50 pm - 7:05 amPER Perth-SEA Seattle/Tacoma Intl

33h 15m1 stop Singapore Changi

$1,307Singapore Airlines

Sun, Oct 25 - Mon, Nov 23

11:31 am - 11:55 amSEA Seattle/Tacoma Intl-PER Perth

33h 24m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,426Qatar Airways

Thu, Mar 25 - Thu, Apr 8

8:10 am - 6:45 pmSEA Seattle/Tacoma Intl-PER Perth

43h 35m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,463Qatar Airways

Sat, Mar 20 - Fri, Apr 16

11:31 am - 11:55 amSEA Seattle/Tacoma Intl-PER Perth

33h 24m2 stops San Francisco Doha Hamad Intl

10:45 pm - 12:55 pmPER Perth-SEA Seattle/Tacoma Intl

29h 10m1 stop Doha Hamad Intl

$1,465Qatar Airways

Sat, Mar 20 - Fri, Apr 16

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,280Cathay Pacific

Tue, Sep 29 - Wed, Oct 28

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,280Cathay Pacific

Tue, Sep 29 - Mon, Oct 26

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

12:25 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

24h 20m1 stop Hong Kong Intl

$1,280Cathay Pacific

Tue, Sep 29 - Tue, Oct 27

11:10 pm - 8:55 amSEA Seattle/Tacoma Intl-PER Perth

42h 45m2 stops Manila Ninoy Aquino Intl Ho Chi Minh City

10:35 am - 8:05 amPER Perth-SEA Seattle/Tacoma Intl

36h 30m1 stop Singapore Changi

$1,285Multiple Airlines

Tue, Sep 29 - Wed, Oct 28

11:45 am - 10:40 pmSEA Seattle/Tacoma Intl-PER Perth

43h 55m1 stop Hong Kong Intl

8:30 am - 9:45 amPER Perth-SEA Seattle/Tacoma Intl

40h 15m1 stop Hong Kong Intl

$1,303Cathay Pacific

Tue, Sep 29 - Mon, Oct 26

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

10:45 pm - 12:40 pmPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,689Qatar Airways

Mon, Sep 28 - Fri, Oct 30

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

10:45 pm - 12:40 pmPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,694Qatar Airways

Sat, Sep 26 - Mon, Oct 26

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

10:45 pm - 12:40 pmPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,694Qatar Airways

Sat, Sep 26 - Tue, Oct 27

4:25 pm - 6:35 pmSEA Seattle/Tacoma Intl-PER Perth

35h 10m1 stop Doha Hamad Intl

10:45 pm - 12:40 pmPER Perth-SEA Seattle/Tacoma Intl

28h 55m1 stop Doha Hamad Intl

$1,694Qatar Airways

Sat, Sep 26 - Thu, Oct 29

10:15 am - 12:30 pmSEA Seattle/Tacoma Intl-PER Perth

35h 15m1 stop Singapore Changi

1:10 am - 8:05 amPER Perth-SEA Seattle/Tacoma Intl

21h 55m1 stop Singapore Changi

$2,798Singapore Airlines

Tue, Sep 29 - Sat, Oct 24

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Singapore Airlines flights from State of Washington to Perth

Our best Singapore Airlines deals on State of Washington to Perth flight tickets

Singapore Airlines

Nov 18

SEA8:40 amSeattle/Tacoma Intl

28h 45m

1 stop

PER5:25 amPerth

Nov 24

PER1:50 pmPerth

33h 15m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,243

Singapore Airlines

Nov 18

SEA8:40 amSeattle/Tacoma Intl

28h 45m

1 stop

PER5:25 amPerth

Nov 24

PER1:50 pmPerth

33h 15m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,244

Singapore Airlines

Oct 25

SEA9:40 amSeattle/Tacoma Intl

47h 25m

1 stop

PER12:05 amPerth

Nov 23

PER1:50 pmPerth

33h 15m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$1,307

United Airlines flights from State of Washington to Perth

Our best United Airlines deals on State of Washington to Perth flight tickets

United Airlines

Oct 31

GEG1:10 pmSpokane

55h 10m

2 stops

PER11:20 amPerth

Nov 4

PER11:45 pmPerth

37h 12m

2 stops

GEG8:57 pmSpokane

$1,631

United Airlines

Dec 19

GEG7:45 amSpokane

38h 25m

2 stops

PER2:10 pmPerth

Jan 2

PER7:20 amPerth

29h 55m

2 stops

GEG9:15 pmSpokane

$3,539

United Airlines

Dec 19

GEG7:45 amSpokane

38h 25m

2 stops

PER2:10 pmPerth

Jan 2

PER7:20 amPerth

29h 55m

2 stops

GEG9:15 pmSpokane

$3,580

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 2/15

9:30 pm-7:20 am

1 stop41h 50m

Perth

Mon 3/15

8:35 am-7:45 pm

1 stop26h 10m

$1,178

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Thu 3/25

10:30 pm-7:15 am

1 stop41h 45m

Perth

Thu 4/8

8:30 am-7:35 pm

1 stop26h 05m

$1,179

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 11/9

9:30 pm-7:20 am

1 stop41h 50m

Perth

Mon 11/16

8:35 am-6:45 pm

1 stop26h 10m

$1,237

Quickest round-trip

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 11/18

8:40 am-5:25 am

1 stop28h 45m

Perth

Tue 11/24

1:50 pm-7:05 am

1 stop33h 15m

$1,243

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Wed 11/18

8:40 am-5:25 am

1 stop28h 45m

Perth

Tue 11/24

1:50 pm-7:05 am

1 stop33h 15m

$1,244

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Mon 10/26

11:25 am-10:55 pm

1 stop44h 30m

Perth

Tue 11/24

8:30 am-8:45 am

1 stop40h 15m

$1,280

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sun 10/25

9:40 am-12:05 am

1 stop47h 25m

Perth

Mon 11/23

1:50 pm-7:05 am

1 stop33h 15m

$1,307

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Thu 3/25

11:31 am-11:55 am

2 stops33h 24m

Perth

Thu 4/8

10:45 pm-12:55 pm

1 stop29h 10m

$1,426

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 3/20

8:10 am-6:45 pm

2 stops43h 35m

Perth

Fri 4/16

10:45 pm-12:55 pm

1 stop29h 10m

$1,463

SeattlePerth

SEA Seattle/Tacoma Intl - PER Perth

SEAPER

Seattle/Tacoma Intl

Sat 3/20

11:31 am-11:55 am

2 stops33h 24m

Perth

Fri 4/16

10:45 pm-12:55 pm

1 stop29h 10m

$1,465

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 State of Washington 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

Other information

What is the cheapest month to fly to Perth?

In general, July is the cheapest month to fly from State of Washington 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 State of Washington during the month June is also very affordable. Most momondo users find prices during this month for around $1,231.

Can stopping save me money on State of Washington to Perth flights?

You could potentially save up to 5% on your flight if you consider stops on a State of Washington to Perth flight.

Cheap State of Washington to Perth flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Perth

Best Price Found	$487
Fastest flight time	23h 25m
Direct flights	None

The best one-way flight to Perth from State of Washington in the past 72 hours is $487. The best round-trip flight deal from State of Washington to Perth found on momondo in the last 72 hours is $1,178.

The fastest flight from State of Washington to Perth takes 23h 25m

There are no direct flights from State of Washington to Perth. There are no popular flight routes from State of Washington to Perth.

Search flight deals

Frequently asked questions about flying from Washington to Perth

When did momondo last update prices for flights from Washington to Perth Airport?
Prices for flights from Washington to Perth Airport are updated daily.
How many operators does momondo search for flights from Washington to Perth Airport?
As of September 2026, there are 2 operators available to choose from for flights from Washington to Perth Airport.
How old do you have to be to fly from Washington to Perth Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

Best airlines flying from State of Washington to Perth

Compare and see reviews for airlines that fly from State of Washington to Perth with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $1,232	Free Cancellation	Rating 8.2 1,612 reviews		Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,240	Free Cancellation	Rating 7.3 3,729 reviews		Search Qatar Airways flights

Rottnest Island

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Why use momondo?

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

Finding the right flight to Perth from Washington 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 Washington to Perth with flexible booking policies on momondo?

All flight searches from Washington to Perth on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington 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 Washington to Perth right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Perth from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.