ADL - SEA

$1,761 Find Cheap Flights from Adelaide to Seattle – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$1,761
Typical prices: $1,406-$1,818
Multiple Airlines
Sun 4/11Sun 11/11
ADL - SEA • 2 stops
Direct flights
Not available
There are currently no direct flights between Adelaide and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
July
Cheapest • 11% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
San Francisco (SFO)
Cheapest • Avg $1,491 (return)
Doha Hamad Intl (DOH)
Shortest trip • 31h 11m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Adelaide to Seattle (ADL-SEA)

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

Recent return flight deals from Adelaide to Seattle

Wed, 4 Nov - Wed, 11 Nov
Multiple Airlines Logo
12:05 - 18:22ADL  Adelaide-SEA Seattle/Tacoma Intl
24h 47m2 stops Auckland Intl Vancouver Intl
Multiple Airlines Logo
06:00 - 10:55SEA  Seattle/Tacoma Intl-ADL Adelaide
34h 25m2 stops Los Angeles Los Angeles Auckland Intl
$1,761Multiple Airlines
Wed, 4 Nov - Wed, 11 Nov
Cathay Pacific Logo
10:10 - 08:45ADL  Adelaide-SEA Seattle/Tacoma Intl
41h 05m2 stops Melbourne Hong Kong Intl
Cathay Pacific Logo
10:25 - 10:30SEA  Seattle/Tacoma Intl-ADL Adelaide
29h 35m1 stop Hong Kong Intl
$1,958Cathay Pacific
Tue, 24 Nov - Tue, 15 Dec
Air Canada Logo
06:10 - 18:22ADL  Adelaide-SEA Seattle/Tacoma Intl
30h 42m2 stops Brisbane Vancouver Intl
Air Canada Logo
15:15 - 10:55SEA  Seattle/Tacoma Intl-ADL Adelaide
25h 10m2 stops Vancouver Intl Sydney Kingsford Smith
$2,098Air Canada
Wed, 4 Nov - Wed, 11 Nov
Singapore Airlines Logo
10:15 - 07:05ADL  Adelaide-SEA Seattle/Tacoma Intl
63h 20m1 stop Singapore Changi
Singapore Airlines Logo
08:40 - 08:50SEA  Seattle/Tacoma Intl-ADL Adelaide
29h 40m1 stop Singapore Changi
$2,244Singapore Airlines
Tue, 24 Nov - Tue, 15 Dec
Multiple Airlines Logo
17:20 - 21:25ADL  Adelaide-SEA Seattle/Tacoma Intl
22h 35m2 stops Sydney Kingsford Smith Honolulu
Multiple Airlines Logo
12:12 - 08:10SEA  Seattle/Tacoma Intl-ADL Adelaide
49h 28m2 stops Honolulu Sydney Kingsford Smith
$2,303Multiple Airlines
Tue, 24 Nov - Tue, 15 Dec
Multiple Airlines Logo
17:20 - 21:25ADL  Adelaide-SEA Seattle/Tacoma Intl
22h 35m2 stops Sydney Kingsford Smith Honolulu
Multiple Airlines Logo
12:12 - 08:10SEA  Seattle/Tacoma Intl-ADL Adelaide
49h 28m2 stops Honolulu Sydney Kingsford Smith
$2,306Multiple Airlines
Tue, 24 Nov - Tue, 15 Dec
Multiple Airlines Logo
17:20 - 21:25ADL  Adelaide-SEA Seattle/Tacoma Intl
22h 35m2 stops Sydney Kingsford Smith Honolulu
Multiple Airlines Logo
12:12 - 08:10SEA  Seattle/Tacoma Intl-ADL Adelaide
49h 28m2 stops Honolulu Sydney Kingsford Smith
$2,310Multiple Airlines
Wed, 4 Nov - Wed, 11 Nov
Multiple Airlines Logo
14:15 - 19:54ADL  Adelaide-SEA Seattle/Tacoma Intl
24h 09m3 stops Melbourne Sydney Kingsford Smith San Francisco
Multiple Airlines Logo
17:59 - 13:45SEA  Seattle/Tacoma Intl-ADL Adelaide
25h 16m2 stops Los Angeles Los Angeles Sydney Kingsford Smith
$2,572Multiple Airlines
Tue, 24 Nov - Tue, 15 Dec
Multiple Airlines Logo
06:25 - 13:08ADL  Adelaide-SEA Seattle/Tacoma Intl
25h 13m2 stops Sydney Kingsford Smith Los Angeles Los Angeles
Multiple Airlines Logo
15:55 - 13:30SEA  Seattle/Tacoma Intl-ADL Adelaide
27h 05m3 stops Los Angeles Los Angeles Sydney Kingsford Smith Melbourne
$2,861Multiple Airlines
Tue, 24 Nov - Tue, 15 Dec
Multiple Airlines Logo
06:25 - 11:03ADL  Adelaide-SEA Seattle/Tacoma Intl
23h 08m2 stops Sydney Kingsford Smith Los Angeles Los Angeles
Multiple Airlines Logo
15:55 - 13:30SEA  Seattle/Tacoma Intl-ADL Adelaide
27h 05m3 stops Los Angeles Los Angeles Sydney Kingsford Smith Melbourne
$2,865Multiple Airlines
Booking Insights

Price, demand, and travel trends for Adelaide to Seattle flights

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

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

Tuesday is the cheapest day of the week to fly from Adelaide to Seattle and is 12% cheaper than the average day. Sunday is the most expensive day with flight prices 28% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Adelaide to Seattle flights

Low season

March

Cheapest flight

$1,761
Most popular time to fly and prices are also 11% lower on average.
Flights from Adelaide to Seattle

When to book flights from Adelaide to Seattle

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

Your Adelaide to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

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

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

    • Economy class
    • Business Class
    • First Class

  • How long is a flight from Adelaide to Seattle?

    A direct flight from Adelaide to Seattle takes 0h 00m, covering 21,580 km.

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

    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 Adelaide to Seattle flight?

    Return flights from Adelaide to Seattle range from $1,406 to $1,818, with an average of $1,551 over the past 12 months. Anything below $1,406 counts as a good deal.

  • Have flight prices from Adelaide to Seattle 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 $1,761 to $15,768. That means the highest observed fare was about 9x higher than the lowest one.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around $5 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

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

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

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

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

    • Singapore Changi (SIN) – 44% of one-stop connections
    • San Francisco (SFO) – 33% of one-stop connections
    • Doha Hamad Intl (DOH) – 11% of one-stop connections
    • Dubai Intl (DXB) – 11% 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 Adelaide to Seattle?

    Yes. Being flexible with your travel dates can save you up to 32% on the Adelaide to Seattle route. Tuesday is the cheapest departure day at $1,367 return on average, while Sunday is the most expensive at $2,000, a difference of $633. 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 stopover airport from Adelaide to Seattle?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time of 19h 22m, compared to 31h 11m via Doha Hamad Intl (DOH) and 33h 12m via Dubai Intl (DXB).

  • What is the time difference between Adelaide and Seattle?

    Seattle is 16 hours behind Adelaide (Pacific Time vs Central Australia Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Lumen Field, Space Needle, and McCaw Hall. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Adelaide to Seattle 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 Tuesday departure instead of Sunday. On this route, Tuesday flights average $1,367 – about $633 less than Sunday (32% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Adelaide to Seattle trip for July. Fares historically average $1,377 return in that month – typically $453 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Adelaide to Seattle

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

Car hire in Seattle
Hotels in Seattle
Holidays in Seattle