SEA - PER

$723 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 return flight
$1,648
Typical prices: $1,793-$2,307
Air Canada
Tue 20/3Mon 16/4
SEA - PER • 2 stops
Cheapest one-way flight
$723
Typical prices: $1,098-$1,425
Multiple Airlines
Fri 2/3
SEA - PER • 1 stop
Direct flights
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
Cheapest • 14% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg $2,058 (return)
Shortest trip • 28h 40m (one-way)
Insights
Insights
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We hope you enjoy your trip to Perth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Perth (SEA-PER)

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

Recent return flight deals from Seattle to Perth

Sat, 20 Mar - Fri, 16 Apr
Air Canada Logo
15:15 - 15:55SEA  Seattle/Tacoma Intl-PER Perth
33h 40m2 stops Vancouver Intl Brisbane
Air Canada Logo
22:40 - 09:18PER  Perth-SEA Seattle/Tacoma Intl
25h 38m2 stops Brisbane Vancouver Intl
$1,648Air Canada
3+ days ago
Mon, 12 Apr - Mon, 3 May
Multiple Airlines Logo
11:45 - 06:50SEA  Seattle/Tacoma Intl-PER Perth
28h 05m1 stop Hong Kong Intl
Multiple Airlines Logo
08:30 - 19:35PER  Perth-SEA Seattle/Tacoma Intl
26h 05m1 stop Manila Ninoy Aquino Intl
$1,747Multiple Airlines
3+ days ago
Mon, 16 Nov - Mon, 30 Nov
Philippine Airlines Logo
21:30 - 07:20SEA  Seattle/Tacoma Intl-PER Perth
41h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
08:35 - 18:45PER  Perth-SEA Seattle/Tacoma Intl
26h 10m1 stop Manila Ninoy Aquino Intl
$1,765Philippine Airlines
3+ days ago
Sun, 8 Nov - Thu, 12 Nov
Multiple Airlines Logo
00:10 - 03:40SEA  Seattle/Tacoma Intl-PER Perth
35h 30m3 stops Incheon Intl Jakarta Soekarno-Hatta Intl Kuala Lumpur Intl
Multiple Airlines Logo
08:35 - 18:45PER  Perth-SEA Seattle/Tacoma Intl
26h 10m1 stop Manila Ninoy Aquino Intl
$1,765Multiple Airlines
3+ days ago
Sat, 20 Mar - Fri, 16 Apr
Singapore Airlines Logo
09:40 - 12:35SEA  Seattle/Tacoma Intl-PER Perth
35h 55m1 stop Singapore Changi
Singapore Airlines Logo
13:45 - 08:45PER  Perth-SEA Seattle/Tacoma Intl
34h 00m1 stop Singapore Changi
$1,789Singapore Airlines
15 hours ago
Sat, 20 Mar - Fri, 16 Apr
Singapore Airlines Logo
09:40 - 12:35SEA  Seattle/Tacoma Intl-PER Perth
35h 55m1 stop Singapore Changi
Singapore Airlines Logo
13:45 - 08:45PER  Perth-SEA Seattle/Tacoma Intl
34h 00m1 stop Singapore Changi
$1,800Singapore Airlines
2 days ago
Sun, 8 Nov - Thu, 12 Nov
Multiple Airlines Logo
00:10 - 23:35SEA  Seattle/Tacoma Intl-PER Perth
31h 25m2 stops Incheon Intl Jakarta Soekarno-Hatta Intl
Multiple Airlines Logo
08:35 - 18:45PER  Perth-SEA Seattle/Tacoma Intl
26h 10m1 stop Manila Ninoy Aquino Intl
$1,851Multiple Airlines
3+ days ago
Wed, 9 Dec - Wed, 30 Dec
United Airlines Logo
09:01 - 16:50SEA  Seattle/Tacoma Intl-PER Perth
39h 49m2 stops San Francisco Auckland Intl
United Airlines Logo
07:20 - 23:18PER  Perth-SEA Seattle/Tacoma Intl
31h 58m2 stops Adelaide San Francisco
$2,255United Airlines
13 hours ago
Wed, 9 Dec - Wed, 16 Dec
United Airlines Logo
19:30 - 16:50SEA  Seattle/Tacoma Intl-PER Perth
29h 20m2 stops San Francisco Auckland Intl
United Airlines Logo
23:30 - 14:22PER  Perth-SEA Seattle/Tacoma Intl
30h 52m2 stops Brisbane San Francisco
$2,330United Airlines
2 days ago
Mon, 12 Apr - Mon, 3 May
United Airlines Logo
18:51 - 11:40SEA  Seattle/Tacoma Intl-PER Perth
25h 49m2 stops Los Angeles Melbourne
United Airlines Logo
15:30 - 21:12PER  Perth-SEA Seattle/Tacoma Intl
44h 42m3 stops Sydney Kingsford Smith Los Angeles Denver Intl
$2,500United Airlines
3+ days ago
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 with more confidence.

How much is a return flight from Seattle to Perth?

Return flights from Seattle to Perth typically range from $1,793 to $2,307. The lowest price found in the past 5 days was $1,648 on Air Canada.

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.

Key details for Seattle to Perth flights

Low season

June

Cheapest flight

$723
Beat the crowds with an average 74% drop in travellers.
The most popular month to fly with an average 114% increase in travellers.
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 return price

Your Seattle to Perth flight questions, answered

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

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

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

    • Economy class
    • Premium Economy Class

  • How long is a flight from Seattle to Perth?

    A direct flight from Seattle to Perth takes 00m, covering 23,917 km.

  • 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?

    Return flights from Seattle to Perth range from $1,793 to $2,307, with an average of $1,957 over the past 12 months. Anything below $1,793 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, return flight prices on this route showed a wide range, from about $1,648 to $15,878. That means the highest observed fare was about 10x 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 $768, which is 39% below the typical average for this route.

  • Which car hire options are available at Perth Airport (PER)?

    Perth Airport (PER) hosts 5 major car hire companies, with daily rates starting from around $59 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 $1,793 return on average, while Friday is the most expensive at $2,789, a difference of $996.

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

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

    Flying via Singapore Changi (SIN) gives the shortest average 1-stop total travel time of 24h 45m, compared to 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 Perth Town Hall. 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 $1,793, about $996 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 $1,676 return in that month – typically $931 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
    • Ellard Bed & Breakfast

More options for your flight from Seattle to Perth

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