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

Cathay Pacific and Philippine Airlines are the most popular carriers operating from Washington to 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 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.

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 28h 40m on average, while flying from Spokane to Perth is 37h 10m 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 December 2025, there are 3 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.

$601 Cheap Flights from Washington to Perth in 2025/26

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Find the cheapest flights from Washington to Perth

Round-trip

One-way

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Cheap round-trip flights

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10:15 am - 11:55 pm

SEA

PER

22h 40m1 stop

1:10 am - 8:45 am

PER

SEA

22h 35m1 stop

$1,097Singapore Airlines

Tue, Apr 7 - Mon, Apr 27

10:15 am - 11:55 pm

SEA

PER

22h 40m1 stop

1:10 am - 8:45 am

PER

SEA

22h 35m1 stop

$1,104Singapore Airlines

Tue, Apr 7 - Mon, Apr 27

10:15 am - 12:30 pm

SEA

PER

35h 15m1 stop

1:10 am - 4:54 pm

PER

SEA

30h 44m2 stops

$1,190Multiple Airlines

Tue, Apr 7 - Mon, Apr 27

7:55 pm - 7:45 am

SEA

PER

44h 50m2 stops

12:10 am - 7:08 am

PER

SEA

45h 58m2 stops

$1,237Cathay Pacific

Tue, Apr 7 - Mon, Apr 27

4:05 pm - 6:45 pm

SEA

PER

34h 40m1 stop

10:45 pm - 11:40 am

PER

SEA

28h 55m1 stop

$1,282Qatar Airways

Tue, Feb 3 - Tue, Feb 24

4:05 pm - 6:45 pm

SEA

PER

34h 40m1 stop

3:55 pm - 11:40 am

PER

SEA

35h 45m1 stop

$1,301Qatar Airways

Tue, Feb 3 - Wed, Feb 25

8:45 am - 4:15 am

SEA

PER

27h 30m1 stop

2:35 pm - 8:00 am

PER

SEA

33h 25m2 stops

$1,306Multiple Airlines

Sun, Feb 1 - Fri, Feb 27

5:59 pm - 10:55 pm

SEA

PER

36h 56m2 stops

8:30 am - 9:58 pm

PER

SEA

29h 28m2 stops

$1,310Cathay Pacific

Mon, Jan 26 - Mon, Feb 2

12:50 pm - 5:00 pm

GEG

PER

37h 10m2 stops

6:20 am - 8:34 pm

PER

GEG

29h 14m2 stops

$1,557Qantas Airways

Tue, May 5 - Sat, May 9

12:50 pm - 5:00 pm

GEG

PER

37h 10m2 stops

6:20 am - 8:34 pm

PER

GEG

29h 14m2 stops

$1,558Qantas Airways

Tue, May 5 - Sat, May 9

Cathay Pacific flights from State of Washington to Perth

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

Cathay Pacific

Apr 7

SEA7:55 pmSeattle/Tacoma Intl

44h 50m

2 stops

PER7:45 amPerth

Apr 27

PER12:10 amPerth

45h 58m

2 stops

SEA7:08 amSeattle/Tacoma Intl

$1,237

Find similar

Cathay Pacific

Jan 26

SEA5:59 pmSeattle/Tacoma Intl

36h 56m

2 stops

PER10:55 pmPerth

Feb 2

PER8:30 amPerth

29h 28m

2 stops

SEA9:58 pmSeattle/Tacoma Intl

$1,310

Find similar

Cathay Pacific

Mar 1

SEA4:50 pmSeattle/Tacoma Intl

38h 05m

2 stops

PER10:55 pmPerth

Mar 5

PER8:30 amPerth

28h 17m

2 stops

SEA8:47 pmSeattle/Tacoma Intl

$1,335

Find similar

Qatar Airways flights from State of Washington to Perth

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

Qatar Airways

Feb 3

SEA4:05 pmSeattle/Tacoma Intl

34h 40m

1 stop

PER6:45 pmPerth

Feb 24

PER10:45 pmPerth

28h 55m

1 stop

SEA11:40 amSeattle/Tacoma Intl

$1,282

Find similar

Qatar Airways

Feb 3

SEA4:05 pmSeattle/Tacoma Intl

34h 40m

1 stop

PER6:45 pmPerth

Feb 25

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

$1,301

Find similar

Qatar Airways

Feb 3

SEA8:25 amSeattle/Tacoma Intl

42h 20m

2 stops

PER6:45 pmPerth

Feb 24

PER10:45 pmPerth

28h 55m

1 stop

SEA11:40 amSeattle/Tacoma Intl

$1,316

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

10:15 am-11:55 pm

1 stop22h 40m

Perth

Mon 4/27

1:10 am-8:45 am

1 stop22h 35m

$1,097

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

10:15 am-11:55 pm

1 stop22h 40m

Perth

Mon 4/27

1:10 am-8:45 am

1 stop22h 35m

$1,104

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

10:15 am-12:30 pm

1 stop35h 15m

Perth

Mon 4/27

1:10 am-4:54 pm

2 stops30h 44m

$1,190

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

7:55 pm-7:45 am

2 stops44h 50m

Perth

Mon 4/27

12:10 am-7:08 am

2 stops45h 58m

$1,237

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 2/3

4:05 pm-6:45 pm

1 stop34h 40m

Perth

Tue 2/24

10:45 pm-11:40 am

1 stop28h 55m

$1,282

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 2/3

4:05 pm-6:45 pm

1 stop34h 40m

Perth

Wed 2/25

3:55 pm-11:40 am

1 stop35h 45m

$1,301

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Sun 2/1

8:45 am-4:15 am

1 stop27h 30m

Perth

Fri 2/27

2:35 pm-8:00 am

2 stops33h 25m

$1,306

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Mon 1/26

5:59 pm-10:55 pm

2 stops36h 56m

Perth

Mon 2/2

8:30 am-9:58 pm

2 stops29h 28m

$1,310

SpokanePerth

GEG - PER

GEGPER

Spokane

Tue 5/5

12:50 pm-5:00 pm

2 stops37h 10m

Perth

Sat 5/9

6:20 am-8:34 pm

2 stops29h 14m

$1,557

SpokanePerth

GEG - PER

GEGPER

Spokane

Tue 5/5

12:50 pm-5:00 pm

2 stops37h 10m

Perth

Sat 5/9

6:20 am-8:34 pm

2 stops29h 14m

$1,558

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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, September 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 $1,290. If you are unable to visit Perth during the month of September, then departing from State of Washington during the month February is also very affordable. Most momondo users find prices during this month for around $1,307.

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.

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

You could potentially save up to 44% 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

Fastest flight time	28h 40m
Direct flights	None

The fastest flight from State of Washington to Perth takes 28h 40m

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

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 December 2025, there are 3 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 $1,239	Free Cancellation	Rating 8.1 1,412 reviews	Search Singapore Airlines flights
Qantas Airways	PriceFrom $1,258	Free Cancellation	Rating 7.5 947 reviews	Search Qantas Airways flights
Qatar Airways	PriceFrom $1,307	Free Cancellation	Rating 7.4 3,677 reviews	Search Qatar Airways flights

Mandurah

Fremantle

Rottnest Island

Scarborough

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.