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

Philippine Airlines, Qatar Airways, and Cathay Pacific 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 27h 55m on average, while flying from Spokane to Perth is 35h 10m on average. Perth is the most popular airport in Perth.

What airlines fly to Perth?

Singapore Airlines, Qatar Airways and Qantas Airways are the top three most popular airlines that fly to Perth from State of Washington according to our data. Singapore Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Perth. Keep in mind that there are 4 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.

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 August 2025, there are 5 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.

$495 Cheap Flights from Washington to Perth in 2025

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Find the cheapest flights from Washington to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

3:23 pm - 10:40 pmSEA-PER

40h 17m2 stops

12:10 am - 9:58 pmPER-SEA

36h 48m2 stops

$1,088Cathay Pacific

Find Deal

Wed, Sep 3 - Tue, Sep 9

10:15 am - 2:40 pmSEA-PER

37h 25m1 stop

1:10 am - 7:10 amPER-SEA

22h 00m1 stop

$1,112Singapore Airlines

Find Deal

Tue, Sep 16 - Mon, Nov 10

7:15 pm - 3:45 pmSEA-PER

29h 30m2 stops

1:15 pm - 9:22 amPER-SEA

35h 07m2 stops

$1,219

Find Deal

Sun, Aug 31 - Sat, Sep 13

4:59 pm - 1:35 pmSEA-PER

29h 36m2 stops

12:25 pm - 11:42 pmPER-SEA

26h 17m2 stops

$1,258Qantas Airways

Find Deal

Fri, Sep 12 - Tue, Sep 23

7:00 pm - 9:35 pmPDX-PER

34h 35m2 stops

4:45 pm - 9:15 amPER-PDX

32h 30m2 stops

$1,258Air Canada

Find Deal

Sun, Nov 2 - Sat, Nov 8

11:35 pm - 7:25 amSEA-PER

40h 50m1 stop

12:10 am - 10:25 amPER-SEA

25h 15m2 stops

$1,263

Find Deal

Wed, Sep 3 - Tue, Sep 9

4:30 pm - 11:55 amSEA-PER

28h 25m1 stop

3:55 pm - 12:45 pmPER-SEA

35h 50m1 stop

$1,266Qatar Airways

Find Deal

Wed, Sep 3 - Wed, Sep 10

2:32 pm - 1:35 pmSEA-PER

32h 03m2 stops

10:30 am - 8:24 pmPER-SEA

24h 54m2 stops

$1,276Qantas Airways

Find Deal

Sun, Aug 31 - Sat, Sep 13

1:24 pm - 11:55 amPDX-PER

31h 31m2 stops

10:45 pm - 10:47 pmPER-PDX

39h 02m2 stops

$1,300Qatar Airways

Find Deal

Tue, Sep 16 - Wed, Sep 24

3:15 pm - 9:35 pmPDX-PER

38h 20m2 stops

10:30 pm - 9:15 amPER-PDX

26h 45m2 stops

$1,467Air Canada

Find Deal

Sun, Nov 2 - Sun, Nov 9

Qantas Airways flights from State of Washington to Perth

Our best Qantas Airways deals on State of Washington to Perth flight tickets

Qantas Airways

Sep 12

SEA4:59 pmSeattle/Tacoma Intl

29h 36m

2 stops

PER1:35 pmPerth

Sep 23

PER12:25 pmPerth

26h 17m

2 stops

SEA11:42 pmSeattle/Tacoma Intl

$1,258

Find similar

Qantas Airways

Aug 31

SEA2:32 pmSeattle/Tacoma Intl

32h 03m

2 stops

PER1:35 pmPerth

Sep 13

PER10:30 amPerth

24h 54m

2 stops

SEA8:24 pmSeattle/Tacoma Intl

$1,276

Find similar

Qantas Airways

Sep 12

SEA3:23 pmSeattle/Tacoma Intl

31h 12m

2 stops

PER1:35 pmPerth

Sep 23

PER12:25 pmPerth

26h 17m

2 stops

SEA11:42 pmSeattle/Tacoma Intl

$1,303

Find similar

Cathay Pacific flights from State of Washington to Perth

Our best Cathay Pacific deals on State of Washington to Perth flight tickets

Cathay Pacific

Sep 3

SEA3:23 pmSeattle/Tacoma Intl

40h 17m

2 stops

PER10:40 pmPerth

Sep 9

PER12:10 amPerth

36h 48m

2 stops

SEA9:58 pmSeattle/Tacoma Intl

$1,088

Find similar

Cathay Pacific

Aug 31

SEA7:59 pmSeattle/Tacoma Intl

44h 46m

2 stops

PER7:45 amPerth

Sep 12

PER12:10 amPerth

48h 47m

2 stops

SEA9:57 amSeattle/Tacoma Intl

$1,139

Find similar

Cathay Pacific

Aug 19

PDX7:35 pmPortland

36h 05m

2 stops

PER10:40 pmPerth

Sep 8

PER12:10 amPerth

31h 20m

2 stops

PDX4:30 pmPortland

$1,218

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/3

3:23 pm-10:40 pm

2 stops40h 17m

Perth

Tue 9/9

12:10 am-9:58 pm

2 stops36h 48m

$1,088

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 9/16

10:15 am-2:40 pm

1 stop37h 25m

Perth

Mon 11/10

1:10 am-7:10 am

1 stop22h 00m

$1,112

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 8/31

7:15 pm-3:45 pm

2 stops29h 30m

Perth

Sat 9/13

1:15 pm-9:22 am

2 stops35h 07m

$1,219

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Fri 9/12

4:59 pm-1:35 pm

2 stops29h 36m

Perth

Tue 9/23

12:25 pm-11:42 pm

2 stops26h 17m

$1,258

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 11/2

7:00 pm-9:35 pm

2 stops34h 35m

Perth

Sat 11/8

4:45 pm-9:15 am

2 stops32h 30m

$1,258

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/3

11:35 pm-7:25 am

1 stop40h 50m

Perth

Tue 9/9

12:10 am-10:25 am

2 stops25h 15m

$1,263

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Wed 9/3

4:30 pm-11:55 am

1 stop28h 25m

Perth

Wed 9/10

3:55 pm-12:45 pm

1 stop35h 50m

$1,266

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 8/31

2:32 pm-1:35 pm

2 stops32h 03m

Perth

Sat 9/13

10:30 am-8:24 pm

2 stops24h 54m

$1,276

PortlandPerth

PDX - PER

PDXPER

Portland

Tue 9/16

1:24 pm-11:55 am

2 stops31h 31m

Perth

Wed 9/24

10:45 pm-10:47 pm

2 stops39h 02m

$1,300

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 11/2

3:15 pm-9:35 pm

2 stops38h 20m

Perth

Sun 11/9

10:30 pm-9:15 am

2 stops26h 45m

$1,467

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, February 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 $1,311. If you are unable to visit Perth during the month of February, then departing from State of Washington during the month October is also very affordable. Most momondo users find prices during this month for around $1,436.

What is the cheapest day to depart on your flight to Perth?

The cheapest day to depart on your flight to Perth is on a Sunday when prices can be found for as low as $1,482. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Perth is Friday, with ticket prices averaging around $1,858.

What is the cheapest time of day to depart on your flight to Perth?

In the evening is the cheapest time of day to fly from State of Washington to Perth when you can find flight prices for as low as $1,497. Flying to Perth in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,690. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Perth?

You are more likely to see cheaper flights to Perth from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Perth for around $1,535 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Perth from State of Washington for as low as $1,163 on momondo.

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

You could potentially save up to 28% 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	$495
Fastest flight time	22h 40m
Direct flights	None
Airports in Perth	1 airport

The best one-way flight to Perth from State of Washington in the past 72 hours is $495. The best round-trip flight deal from State of Washington to Perth found on momondo in the last 72 hours is $1,088.

The fastest flight from State of Washington to Perth takes 22h 40m

There are no direct flights from State of Washington to Perth. Popular non-direct routes for this connection are Portland Airport - Perth Airport and Seattle/Tacoma Intl Airport - Perth Airport.

There is 1 airport near Perth: Perth (PER)

Search flight deals

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 August 2025, there are 5 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
Air Canada	PriceFrom $1,166	Free Cancellation	Rating 7.1 9,893 reviews	Search Air Canada flights
Singapore Airlines	PriceFrom $1,239	Free Cancellation	Rating 8.1 1,344 reviews	Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,315	Free Cancellation	Rating 7.4 3,606 reviews	Search Qatar Airways flights
Qantas Airways	PriceFrom $1,318	Free Cancellation	Rating 7.5 888 reviews	Search Qantas Airways flights

Mandurah

Fremantle

Scarborough

Rottnest Island

Waikiki

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.