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SEA - PER

$533 Find Cheap Flights from Seattle to Perth - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,207
Typical prices: $1,262-$1,624
Philippine Airlines
Fri 11/2Fri 11/16
SEA - PER • 1 stop
Cheapest one-way
$533
Typical prices: $773-$1,003
Multiple Airlines
Thu 11/29
SEA - PER • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Perth. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 14% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Singapore Changi (SIN)
Cheapest • Avg $1,449 (round-trip)
Hong Kong Intl (HKG)
Shortest trip • 28h 40m (one-way)
Insights
Insights
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We hope you love your trip to Perth!

Cheap Flights from Seattle to Perth (SEA-PER)

 

Cheap flights from Seattle to Perth with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Mon, Nov 2 - Mon, Nov 16
Philippine Airlines Logo
9:30 pm - 7:20 amSEA  Seattle/Tacoma Intl-PER Perth
41h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
8:35 am - 6:45 pmPER  Perth-SEA Seattle/Tacoma Intl
26h 10m1 stop Manila Ninoy Aquino Intl
$1,207Philippine Airlines
Thu, Apr 1 - Wed, Apr 21
Singapore Airlines Logo
10:15 am - 5:10 amSEA  Seattle/Tacoma Intl-PER Perth
27h 55m1 stop Singapore Changi
Singapore Airlines Logo
1:10 am - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
22h 35m1 stop Singapore Changi
$1,237Singapore Airlines
Tue, Feb 23 - Sun, Mar 14
Cathay Pacific Logo
10:25 am - 10:55 pmSEA  Seattle/Tacoma Intl-PER Perth
44h 30m1 stop Hong Kong Intl
Cathay Pacific Logo
8:30 am - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
40h 15m1 stop Hong Kong Intl
$1,241Cathay Pacific
Mon, Nov 2 - Tue, Jan 26
Cathay Pacific Logo
10:25 am - 10:55 pmSEA  Seattle/Tacoma Intl-PER Perth
44h 30m1 stop Hong Kong Intl
Cathay Pacific Logo
8:30 am - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
40h 15m1 stop Hong Kong Intl
$1,279Cathay Pacific
Thu, Oct 22 - Sun, Nov 1
Cathay Pacific Logo
11:45 am - 10:40 pmSEA  Seattle/Tacoma Intl-PER Perth
43h 55m1 stop Hong Kong Intl
Cathay Pacific Logo
8:30 am - 9:45 amPER  Perth-SEA Seattle/Tacoma Intl
40h 15m1 stop Hong Kong Intl
$1,279Cathay Pacific
Sat, Mar 20 - Fri, Apr 16
Singapore Airlines Logo
9:40 am - 12:05 amSEA  Seattle/Tacoma Intl-PER Perth
23h 25m1 stop Singapore Changi
Singapore Airlines Logo
1:45 pm - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
34h 00m1 stop Singapore Changi
$1,315Singapore Airlines
Sat, Mar 20 - Fri, Apr 16
Singapore Airlines Logo
9:40 am - 12:05 amSEA  Seattle/Tacoma Intl-PER Perth
23h 25m1 stop Singapore Changi
Singapore Airlines Logo
1:45 pm - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
34h 00m1 stop Singapore Changi
$1,346Singapore Airlines
Sat, Mar 20 - Fri, Apr 16
Qatar Airways Logo
8:45 am - 6:45 pmSEA  Seattle/Tacoma Intl-PER Perth
43h 00m2 stops San Francisco Doha Hamad Intl
Qatar Airways Logo
10:45 pm - 12:55 pmPER  Perth-SEA Seattle/Tacoma Intl
29h 10m1 stop Doha Hamad Intl
$1,482Qatar Airways
Mon, Jan 4 - Sun, Mar 21
Qatar Airways Logo
3:50 pm - 8:30 amSEA  Seattle/Tacoma Intl-PER Perth
48h 40m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
10:45 pm - 6:02 pmPER  Perth-SEA Seattle/Tacoma Intl
34h 17m2 stops Doha Hamad Intl San Francisco
$1,765Qatar Airways
Sat, Jan 2 - Mon, Mar 22
Qatar Airways Logo
3:50 pm - 6:45 pmSEA  Seattle/Tacoma Intl-PER Perth
34h 55m1 stop Doha Hamad Intl
Qatar Airways Logo
10:45 pm - 6:02 pmPER  Perth-SEA Seattle/Tacoma Intl
34h 17m2 stops Doha Hamad Intl San Francisco
$1,899Qatar Airways

Price, demand and travel trends for Seattle to Perth flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Seattle to Perth?

Round-trip flights from Seattle to Perth typically range from $1,262 to $1,624. The lowest price found in the past 5 days was $1,207, on Philippine Airlines.

What's the cheapest day of the week to fly from Seattle to Perth?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Perth. It’s 9% cheaper than the average day, while Friday is the most expensive, with prices 42% higher.

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Key details for Seattle to Perth flights

Low season

June

Cheapest flight

$533
Beat the crowds with an average 48% drop in travelers.
One-way flight from Seattle to Perth

When to book flights from Seattle to Perth

Are your dates flexible? Find out the best times to travel from Seattle to Perth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Perth flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Seattle to Perth?

    Three cabin classes are available on flights from Seattle to Perth:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Seattle to Perth?

    A nonstop flight from Seattle to Perth takes 00m, covering 9,235 miles.

  • Do I need a passport to fly from Seattle to Perth?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seattle to Perth flight?

    Round-trip flights from Seattle to Perth range from $1,262 to $1,624, with an average of $1,377 over the past 12 months. Anything below $1,262 counts as a good deal.

  • Have flight prices from Seattle to Perth changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,114 to $10,482. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Seattle to Perth looking right now?

    One-way fares from Seattle to Perth are currently lower than usual. Average one-way flight prices are about $706, which is 20% below the typical average for this route.

  • What car rental options are available at Perth Airport (PER)?

    Perth Airport (PER) hosts 5 major car rental companies, with daily rates starting from around $12 for economy cars. Top options include:

    • EverythingFleet
    • Bargain Car Rentals
    • East Coast Car Rentals
    • No Birds
    • Europcar

  • Which airports can I use when flying from Seattle to Perth?

    Flights from Seattle to Perth usually depart from Seattle/Tacoma Intl (SEA) and arrive at Perth (PER).

  • Which airports do connecting flights from Seattle to Perth pass through?

    One-stop flights from Seattle to Perth most commonly connect through:

    • Singapore Changi (SIN) - 71% of one-stop connections
    • Doha Hamad Intl (DOH) - 19% of one-stop connections
    • Hong Kong Intl (HKG) - 5% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Perth?

    Yes. Flexible dates can save you up to 36% on flights from Seattle to Perth. Monday is the cheapest departure day at $1,262 round-trip on average, while Friday is the most expensive at $1,963, a difference of $701.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Seattle to Perth?

    Flying via Singapore Changi (SIN) gives the shortest average 1-stop total travel time at 24h 45m, compared with 28h 40m via Hong Kong Intl (HKG) and 30h 49m via Doha Hamad Intl (DOH).

  • What is the time difference between Seattle and Perth?

    Perth is 15 hours ahead of Seattle (Western Australia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Perth?

    Some of the most popular sights in Perth are RAC Arena, Perth Convention Exhibition Centre and 100 St Georges Terrace. These are among the most viewed places in Perth on KAYAK.

Your guide to booking Seattle to Perth flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $1,262, about $701 less than Friday fares (36% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Perth trip for February. Fares historically average $1,180 round-trip in that month - typically $655 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Perth Airport.

    • Sanno Marracoonda Perth Airport Hotel

More options for your flight from Seattle to Perth

Complete your trip to Perth with a hotel stay or car rental

Car rentals in Perth
Hotels in Perth
Vacations in Perth