What are the cheapest airlines flying from Perth to Seattle round-trip?

According to our current data, Japan Airlines ($1,441), United Airlines ($2,124), and Qantas Airways ($2,159) offers the cheapest pricing from Perth to Seattle. These flights start at 29% lower than the current average price 3 months from now. Find deals

What are the cheapest airlines to fly from Perth to Seattle one-way?

$4,424 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Qatar Airways and Singapore Airlines, with prices starting from $7,802 and $9,349, respectively. Find deals

What is the cheapest day to fly from Perth to Seattle?

Travellers seeking maximum savings on their Perth to Seattle flight should consider departing on Friday mornings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Perth to Seattle?

The most popular airlines flying from Perth to Seattle are Air Canada, Japan Airlines and ANA. Something to consider prior to booking your flight.

What is the cheapest day to fly return from Perth to Seattle?

Travellers have found that booking a Tuesday departure is the best way to save up to 16% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save on the cost of your flight from Perth to Seattle, book at least 50 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,671 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $2,127.

What is the cheapest month to fly from Perth to Seattle?

Our data shows that February tends to be the cheapest month to fly to Seattle from Perth. Users have commonly found prices around $2,057 for the month, but tickets can be as low as $1,607. Due to multiple factors, prepare for potentially higher prices in December.

Can I find deals for flights from Perth to Seattle that include hotel bookings?

Yes. In addition to deals on Perth to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Perth to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Perth to Seattle.

Can I find deals for business class flights from Perth to Seattle?

Yes. Cheapflights offers flight deals from Perth to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,441+ Flights from Perth to Seattle

Cheap flight deals from Perth to Seattle

Round-trip from	$1,441
Popular in	December
Cheapest in	February
Average price	$2,020

Japan Airlines
17/7-29/7
4 total stops
81h 20m total
Perth to Seattle

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($381 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($105 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Perth to Seattle

Cheapest flights from Perth to Seattle
Explore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2025.

Thu 17/712:25PER - SEA

2 stops37h 10mJapan Airlines

Tue 29/713:30SEA - PER

2 stops44h 10mJapan Airlines

Deal found 19/6$1,441

Sat 21/621:35PER - SEA

1 stop31h 50mANA

Sat 5/716:30SEA - PER

1 stop36h 30mANA

Deal found 18/6$1,656

Sat 19/721:55PER - SEA

2 stops33h 40mMultiple Airlines

Thu 24/701:15SEA - PER

2 stops28h 25mMultiple Airlines

Deal found 19/6$1,981

Thu 17/723:45PER - SEA

3 stops36h 11mUnited Airlines

Tue 29/705:10SEA - PER

2 stops42h 30mUnited Airlines

Deal found 19/6$2,124

Sat 2/810:30PER - SEA

2 stops26h 40mQantas Airways

Sat 13/918:05SEA - PER

2 stops32h 00mQantas Airways

Deal found 18/6$2,159

Thu 31/715:40PER - SEA

1 stop36h 05mQatar Airways

Thu 7/816:30SEA - PER

1 stop28h 25mQatar Airways

Deal found 17/6$2,462

Mon 29/1222:45PER - SEA

2 stops29h 43mVirgin Australia

Mon 26/112:50SEA - PER

2 stops35h 20mVirgin Australia

Deal found 19/6$2,657

Sat 20/906:00PER - SEA

1 stop46h 25mEmirates

Sun 21/917:15SEA - PER

1 stop33h 20mEmirates

Deal found 17/6$2,674

Fri 1/801:10PER - SEA

1 stop22h 35mSingapore Airlines

Sat 13/918:05SEA - PER

2 stops29h 35mSingapore Airlines

Deal found 17/6$2,797

Best flights from Perth to Seattle
Discover carefully curated flight deals from Perth to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 June 2025.

Thu 17/712:25PER - SEA

2 stops37h 10mJapan Airlines

Tue 29/713:30SEA - PER

2 stops44h 10mJapan Airlines

Deal found 19/6$1,441

Sat 19/721:55PER - SEA

2 stops33h 40mMultiple Airlines

Thu 24/701:15SEA - PER

2 stops28h 25mMultiple Airlines

Deal found 19/6$1,981

Thu 17/723:45PER - SEA

3 stops36h 11mUnited Airlines

Tue 29/705:10SEA - PER

2 stops42h 30mUnited Airlines

Deal found 19/6$2,124

Sat 2/810:30PER - SEA

2 stops26h 40mQantas Airways

Sat 13/918:05SEA - PER

2 stops32h 00mQantas Airways

Deal found 18/6$2,159

Thu 31/715:40PER - SEA

1 stop36h 05mQatar Airways

Thu 7/816:30SEA - PER

1 stop28h 25mQatar Airways

Deal found 17/6$2,462

Sat 20/906:00PER - SEA

1 stop46h 25mEmirates

Sun 21/917:15SEA - PER

1 stop33h 20mEmirates

Deal found 17/6$2,674

Fri 1/801:10PER - SEA

1 stop22h 35mSingapore Airlines

Sat 13/918:05SEA - PER

2 stops29h 35mSingapore Airlines

Deal found 17/6$2,797

Mon 15/1221:55PER - SEA

2 stops36h 31mANA

Mon 29/1215:11SEA - PER

2 stops61h 19mANA

Deal found 18/6$4,493

Last-minute flights from Perth to Seattle
Discover last-minute flight deals from Perth to Seattle. Data last updated 19 June 2025 and is based on user searches.

Sat 21/621:35PER - SEA

1 stop31h 50mANA

Sat 5/716:30SEA - PER

1 stop36h 30mANA

Deal found 18/6$1,656

Tue 24/612:25PER - SEA

2 stops37h 10mJapan Airlines

Tue 8/713:30SEA - PER

2 stops44h 10mJapan Airlines

Deal found 19/6$2,345

Tue 24/623:55PER - SEA

2 stops29h 14mAmerican Airlines

Mon 7/700:59SEA - PER

2 stops43h 16mAmerican Airlines

Deal found 19/6$3,610

Tue 24/606:00PER - SEA

1 stop46h 25mEmirates

Tue 8/717:15SEA - PER

1 stop33h 20mEmirates

Deal found 19/6$3,720

Tue 24/622:45PER - SEA

2 stops38h 15mQatar Airways

Tue 8/716:30SEA - PER

1 stop28h 25mQatar Airways

Deal found 19/6$3,932

Tue 24/608:10PER - SEA

3 stops26h 50mMultiple Airlines

Tue 8/717:15SEA - PER

2 stops27h 00mMultiple Airlines

Deal found 17/6$4,278

Thu 17/712:25PER - SEA

2 stops37h 10mJapan Airlines

Tue 29/713:30SEA - PER

2 stops44h 10mJapan Airlines

Deal found 19/6$1,441

Thu 17/723:45PER - SEA

3 stops36h 11mUnited Airlines

Tue 29/705:10SEA - PER

2 stops42h 30mUnited Airlines

Deal found 19/6$2,124

Fri 18/710:30PER - SEA

2 stops26h 14mQantas Airways

Sat 30/814:32SEA - PER

2 stops29h 43mQantas Airways

Deal found 18/6$4,179

Sat 19/721:55PER - SEA

2 stops33h 40mMultiple Airlines

Thu 24/701:15SEA - PER

2 stops28h 25mMultiple Airlines

Deal found 19/6$1,981

Thu 31/715:40PER - SEA

1 stop36h 05mQatar Airways

Thu 7/816:30SEA - PER

1 stop28h 25mQatar Airways

Deal found 17/6$2,462

Thu 31/701:10PER - SEA

1 stop46h 35mSingapore Airlines

Fri 8/810:15SEA - PER

1 stop35h 15mSingapore Airlines

Deal found 17/6$3,060

One-way flights from Perth to Seattle
Search for one-way flight options from Perth to Seattle. Find affordable one-way fares based on user searches. Data last updated 19 June 2025.

Thu 17/701:20PER - SEA

3 stops45h 44mMultiple Airlines

Deal found 18/6$2,022

Thu 17/700:10PER - SEA

2 stops25h 25mJapan Airlines

Deal found 18/6$4,424

Fri 18/715:40PER - SEA

1 stop36h 05mQatar Airways

Deal found 18/6$7,802

Thu 17/701:10PER - SEA

1 stop22h 35mSingapore Airlines

Deal found 18/6$9,349

Cheapflights Fare Finder

Use the filters below to find and compare flights from Perth to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 17/7

12:25-10:35

2 stops37h 10m

Seattle/Tacoma Intl

Tue 29/7

13:30-00:40

2 stops44h 10m

$1,441

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 19/7

21:55-16:35

2 stops33h 40m

Seattle/Tacoma Intl

Thu 24/7

01:15-20:40

2 stops28h 25m

$1,981

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 17/7

23:45-20:56

3 stops36h 11m

Seattle/Tacoma Intl

Tue 29/7

05:10-14:40

2 stops42h 30m

$2,124

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 2/8

10:30-22:10

2 stops26h 40m

Seattle/Tacoma Intl

Sat 13/9

18:05-17:05

2 stops32h 00m

$2,159

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 31/7

15:40-12:45

1 stop36h 05m

Seattle/Tacoma Intl

Thu 7/8

16:30-11:55

1 stop28h 25m

$2,462

PerthSeattle

PER - SEA

PERSEA

Perth

Sat 20/9

06:00-13:25

1 stop46h 25m

Seattle/Tacoma Intl

Sun 21/9

17:15-17:35

1 stop33h 20m

$2,674

PerthSeattle

PER - SEA

PERSEA

Perth

Fri 1/8

01:10-08:45

1 stop22h 35m

Seattle/Tacoma Intl

Sat 13/9

18:05-14:40

2 stops29h 35m

$2,797

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 15/12

21:55-18:26

2 stops36h 31m

Seattle/Tacoma Intl

Mon 29/12

15:11-20:30

2 stops61h 19m

$4,493

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 17/7

01:20-08:04

3 stops45h 44m

$2,022

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 17/7

00:10-10:35

2 stops25h 25m

$4,424

Flights are sorted by cheapest return flights first.

Deals found on 18/6

Showing 1-10 of 12 results

Best time to book a flight from Perth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Perth with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Perth to Seattle

How far ahead should I book a flight from Perth to Seattle?

To ensure you get the cheapest price possible for a flight from Perth to Seattle, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Perth to Seattle?

Currently, March is the cheapest month in which you can book a flight from Perth to Seattle (average of $875). Flying from Perth to Seattle in December is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PER to SEA?

It’s optimal to fly from Perth to Seattle in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

To help decide which airline to fly from Perth to Seattle, see what other customers have to say about Japan Airlines, ANA and Emirates. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.

Japan Airlines

8.3

Very Good

1,497 reviews

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

ANA

8.3

Very Good

886 reviews

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

Emirates

8.1

Very Good

3,274 reviews

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

Singapore Airlines

8.1

Very Good

1,311 reviews

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

Qantas Airways

7.5

Good

860 reviews

Japan Airlines

8.3

Very Good

1,497 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Roger,June 2025

ORD - PIT

Related info for your journey

What are the cheapest airlines flying from Perth to Seattle round-trip?
According to our current data, Japan Airlines ($1,441), United Airlines ($2,124), and Qantas Airways ($2,159) offers the cheapest pricing from Perth to Seattle. These flights start at 29% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Perth to Seattle one-way?
$4,424 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Qatar Airways and Singapore Airlines, with prices starting from $7,802 and $9,349, respectively.
Can I find deals for flights from Perth to Seattle that include hotel bookings?
Yes. In addition to deals on Perth to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Perth to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Perth to Seattle.
Can I find deals for business class flights from Perth to Seattle?
Yes. Cheapflights offers flight deals from Perth to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Perth to Seattle?
Currently, March is the cheapest month in which you can book a flight from Perth to Seattle (average of $875). Flying from Perth to Seattle in December is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Leavenworth

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Perth to Seattle

Perth to Portland flights

Top 5 airlines flying from Perth to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$1,420	Average$2,107	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Japan Airlines	Cheapest$1,547	Average$1,763	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
ANA	Cheapest$1,620	Average$1,951	FlexibilityNo cancel fee	On-time80%	Search ANA flights
Singapore Airlines	Cheapest$1,701	Average$2,049	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Qantas Airways	Cheapest$1,811	Average$2,802	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Perth to Seattle?

Deals for Perth to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Perth to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Perth to Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Perth to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Perth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Perth to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Perth to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Perth to Seattle from $1,441

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Perth to Seattle

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Perth to Seattle

Cheapest flights from Perth to SeattleExplore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2025.

Explore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Perth to Seattle that are best for you.

Best time to book a flight from Perth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Perth with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Perth to Seattle

How far ahead should I book a flight from Perth to Seattle?

Use this chart to determine the optimal time to book a return flight from Perth to Seattle. Price data was last updated on 13 June 2025.

What is the cheapest month to book a flight from Perth to Seattle?

What is the cheapest time of day to fly from PER to SEA?

Find hourly flight availability from Perth to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 June 2025.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

To help decide which airline to fly from Perth to Seattle, see what other customers have to say about Japan Airlines, ANA and Emirates. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Perth to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Perth to Seattle round-trip?

What are the cheapest airlines to fly from Perth to Seattle one-way?

Can I find deals for flights from Perth to Seattle that include hotel bookings?

How can I find direct flights from Perth to Seattle?

Can I find deals for business class flights from Perth to Seattle?

What is the cheapest month to book a flight from Perth to Seattle?

Travelling to a place near Perth?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Perth to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Perth to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Perth to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Perth to Seattle?

Can Cheapflights find flights from Perth to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Perth to Seattle become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Perth to Seattle
Explore the most affordable flight options available from Perth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2025.