SEA - PER

$511 Find Cheap Flights from Seattle to Perth - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,241
Typical prices: $1,247-$1,624
Multiple Airlines
Sat 11/10Sat 11/17
SEA - PER • 2 stops
Cheapest one-way
$511
Typical prices: $606-$989
Multiple Airlines
Sun 12/2
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
June
Cheapest • 5% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Hong Kong Intl (HKG)
Cheapest • Avg $1,442 (round-trip)
Singapore Changi (SIN)
Shortest trip • 24h 58m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Seattle to Perth (SEA-PER)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Perth

Tue, Nov 10 - Tue, Nov 17
Multiple Airlines Logo
11:00 am - 4:25 pmSEA  Seattle/Tacoma Intl-PER Perth
37h 25m2 stops Incheon Intl Ho Chi Minh City
Multiple Airlines Logo
5:50 pm - 7:05 amPER  Perth-SEA Seattle/Tacoma Intl
29h 15m1 stop Singapore Changi
$1,241Multiple Airlines
Tue, Nov 10 - Tue, Nov 17
Singapore Airlines Logo
8:40 am - 12:35 pmSEA  Seattle/Tacoma Intl-PER Perth
35h 55m1 stop Singapore Changi
Singapore Airlines Logo
5:05 pm - 7:05 amPER  Perth-SEA Seattle/Tacoma Intl
30h 00m1 stop Singapore Changi
$1,244Singapore Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
4:40 pm - 5:50 amSEA  Seattle/Tacoma Intl-PER Perth
46h 10m2 stops Tokyo Haneda Kuala Lumpur Intl
Multiple Airlines Logo
9:10 pm - 7:05 amPER  Perth-SEA Seattle/Tacoma Intl
25h 55m1 stop Singapore Changi
$1,248Multiple Airlines
Wed, Oct 21 - Sun, Nov 22
Cathay Pacific Logo
11:45 am - 6:50 amSEA  Seattle/Tacoma Intl-PER Perth
28h 05m1 stop Hong Kong Intl
Cathay Pacific Logo
8:30 am - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
40h 15m1 stop Hong Kong Intl
$1,253Cathay Pacific
Wed, Oct 21 - Mon, Nov 23
Cathay Pacific Logo
11:45 am - 6:50 amSEA  Seattle/Tacoma Intl-PER Perth
28h 05m1 stop Hong Kong Intl
Cathay Pacific Logo
8:30 am - 8:45 amPER  Perth-SEA Seattle/Tacoma Intl
40h 15m1 stop Hong Kong Intl
$1,266Cathay Pacific
Tue, Jan 26 - Thu, Feb 18
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 - 11:40 amPER  Perth-SEA Seattle/Tacoma Intl
28h 55m1 stop Doha Hamad Intl
$1,295Qatar Airways
Sun, Dec 27 - Tue, Jan 26
Singapore Airlines Logo
8:40 am - 12:05 amSEA  Seattle/Tacoma Intl-PER Perth
23h 25m1 stop Singapore Changi
Singapore Airlines Logo
6:40 am - 7:05 amPER  Perth-SEA Seattle/Tacoma Intl
40h 25m1 stop Singapore Changi
$1,325Singapore Airlines
Sat, Oct 24 - Mon, Nov 23
Singapore Airlines Logo
10:15 am - 12:35 pmSEA  Seattle/Tacoma Intl-PER Perth
35h 20m1 stop Singapore Changi
Singapore Airlines Logo
1:50 pm - 7:05 amPER  Perth-SEA Seattle/Tacoma Intl
33h 15m1 stop Singapore Changi
$1,325Singapore Airlines
Fri, Nov 13 - Fri, Nov 20
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 - 11:40 amPER  Perth-SEA Seattle/Tacoma Intl
28h 55m1 stop Doha Hamad Intl
$1,330Qatar Airways
Sat, Feb 13 - Sat, Feb 20
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 - 11:40 amPER  Perth-SEA Seattle/Tacoma Intl
28h 55m1 stop Doha Hamad Intl
$1,365Qatar Airways
Booking Insights

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 from Seattle to Perth with more confidence.

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

Monday is the cheapest day of the week to fly from Seattle to Perth, it is 5% cheaper than the average day. Friday is the most expensive day with flight prices 51% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Seattle to Perth flights

Low season

June

Cheapest flight

$511
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 34% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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

  • 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) - 66% of one-stop connections
    • Doha Hamad Intl (DOH) - 22% of one-stop connections
    • Hong Kong Intl (HKG) - 6% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) - 6% of one-stop connections

    Singapore Changi (SIN) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 37% on the Seattle to Perth route. Monday is the cheapest departure day at $1,240 round-trip on average, while Friday is the most expensive at $1,963, a difference of $723. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

  • How long is a flight from Seattle to Perth?

    A nonstop flight from Seattle to Perth takes 0h 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 are flight prices from Seattle to Perth looking right now?

    One-way fares from Seattle to Perth are currently higher than usual. Average one-way flight prices are about $1,561, which is 98% above the typical average for this route.

  • 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 58m, compared with 28h 49m via Hong Kong Intl (HKG) and 30h 28m 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 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
    • East Coast Car Rentals
    • Europcar
    • Ace Rental Cars
    • Bargain Car Rentals

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

    Round-trip flights from Seattle to Perth range from $1,247 to $1,624, with an average of $1,296 over the past 12 months. Anything below $1,247 counts as a good deal.

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 can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $1,240 - about $723 less than Friday (37% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Perth trip for June. Fares historically average $1,231 round-trip in that month - typically $636 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