$522 Find Cheap Flights from Seattle to Australia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Australia departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Seattle to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$938
Melbourne
Melbourne1 stop$1,029
Brisbane
Brisbane1 stop$974
Perth
Perth1 stop$1,277
Cairns
Cairns2 stops$1,279
Adelaide
Adelaide2 stops$1,200
Hobart
Hobart2 stops$1,141
Coolangatta
Coolangatta2 stops$1,219
Canberra
Canberra2 stops$1,153
Darwin
Darwin2 stops$1,412
Maroochydore
Maroochydore2 stops$2,188
Newcastle
Newcastle2 stops$1,499
Sydney
Sydney1 stop$938
Melbourne
Melbourne1 stop$1,029
Brisbane
Brisbane1 stop$974
Perth
Perth1 stop$1,277
Cairns
Cairns2 stops$1,279
Adelaide
Adelaide2 stops$1,200
Hobart
Hobart2 stops$1,141
Coolangatta
Coolangatta2 stops$1,219
Canberra
Canberra2 stops$1,153
Darwin
Darwin2 stops$1,412
Maroochydore
Maroochydore2 stops$2,188
Newcastle
Newcastle2 stops$1,499

Book Cheap Seattle to Australia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Australia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Australia

Tue, Sep 8 - Mon, Sep 14
Air Canada Logo
3:00 pm - 7:20 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air Canada Logo
9:20 am - 2:22 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 02m1 stop Vancouver Intl
$938Air Canada
Tue, Nov 3 - Tue, Nov 17
Air Canada Logo
7:05 pm - 9:35 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 30m1 stop Vancouver Intl
Air Canada Logo
11:20 am - 6:22 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m1 stop Vancouver Intl
$938Air Canada
Sun, Oct 25 - Wed, Nov 4
Multiple Airlines Logo
11:06 am - 12:35 pmSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
31h 29m2 stops Los Angeles Nadi
Multiple Airlines Logo
2:00 pm - 6:26 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
23h 26m2 stops Nadi Los Angeles
$939Multiple Airlines
Sun, Oct 25 - Mon, Nov 23
Multiple Airlines Logo
7:05 pm - 8:35 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 30m1 stop Vancouver Intl
Multiple Airlines Logo
11:20 am - 12:56 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 36m1 stop Vancouver Intl
$948Multiple Airlines
Tue, Nov 24 - Thu, Jan 14
Air New Zealand Logo
3:15 pm - 9:35 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air New Zealand Logo
4:00 pm - 2:37 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
17h 37m1 stop Vancouver Intl
$1,035Air New Zealand
Mon, Nov 23 - Thu, Jan 14
Air New Zealand Logo
3:15 pm - 9:35 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
Air New Zealand Logo
4:00 pm - 6:22 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 22m1 stop Vancouver Intl
$1,035Air New Zealand
Mon, Aug 31 - Mon, Sep 7
United Airlines Logo
10:55 am - 6:55 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
27h 00m1 stop San Francisco
United Airlines Logo
10:20 am - 2:24 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 04m1 stop San Francisco
$1,040United Airlines
Mon, Aug 31 - Mon, Sep 7
United Airlines Logo
11:03 am - 7:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
26h 57m2 stops Denver Intl Los Angeles
United Airlines Logo
10:20 am - 8:43 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
27h 23m1 stop San Francisco
$1,045United Airlines
Sun, Sep 6 - Tue, Oct 20
Qantas Airways Logo
5:10 pm - 7:05 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
20h 55m1 stop Los Angeles
Qantas Airways Logo
10:10 am - 12:16 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 06m1 stop Los Angeles
$1,060Qantas Airways
Sun, Sep 6 - Mon, Oct 19
Qantas Airways Logo
5:10 pm - 7:05 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
20h 55m1 stop Los Angeles
Qantas Airways Logo
10:10 am - 12:16 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 06m1 stop Los Angeles
$1,060Qantas Airways
Booking Insights

KAYAK's insights & trends for Seattle to Australia flights

Get data-powered insights and trends into flights from Seattle to Australia to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Australia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Australia is February, when tickets cost $968 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $1,679 and $1,223 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Australia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Australia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Find deals

Good to know

Low season

July

Cheapest flight

$522
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 34% increase in price.
Flight from Seattle to Melbourne Airport (Tullamarine)

FAQs - booking Australia flights

  • How much luggage can I take if I buy an economy ticket from Seattle to Perth?

    When you fly from Seattle-Tacoma International Airport to Perth in Western Australia, you'll be landing at Perth Airport (PER). You can find a flight aboard Qatar with one stop in Hamad International Airport (DOH) that allows economy classic passengers one carry-on and two checked bags. Most other cheaper flights allow one carry-on.

  • Can I rent a car when my Seattle flight lands in Sydney?

    Sydney Kingsford Smith International Airport has rental car counters located in the arrivals area of Terminal 1 International and Terminals 2/3 Domestic. Some companies represented at include Avis, Europcar, Enterprise, and others.

  • What are some common layover cities on flights from Seattle to Brisbane, Australia?

    When you fly from Seattle-Tacoma International Airport to Brisbane Airport (BNE), you will have at least one stop. Flights on Qantas, Alaska, or United tend to stop in Los Angeles International Airport (LAX). Air Canada tends to stop in Vancouver International Airport (YVR), EVA Air in Taiwan Taoyuan International Airport (TPE), and Singapore Airlines in Singapore Changi International Airport.

  • Which airline flies a sustainable flight from the Seattle Tacoma International Airport SEA to Adelaide Airport (ADL) in South Australia?

    One of the most sustainable airlines that operates flights from Seattle to Adelaide Airport is Alaska airlines. Alaska is making successful strides to achieve net zero carbon emissions by the year 2040 by increasing operational efficiency, investing in fleet modernization, new technology, sustainable aviation fuels, and high quality carbon removal techniques.

  • How does KAYAK find such low prices on flights from Seattle to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Australia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Australia

  • Travelers who wish to fly from Seattle to Australia will be departing from the Seattle-Tacoma International Airport (SEA). Situated about 13 miles south of the heart of Seattle, this airport is a hub for several airlines, including Alaska, Delta Air Lines, and Horizon Air.
  • Flights from Seattle to Sydney, Australia will land at Sydney Kingsford Smith International Airport (SYD). While it is unlikely that you will find a non-stop flight from Seattle to Sydney, several airlines operate flights with one connection. Air Canada stops in Vancouver, Qantas and Delta in Los Angeles, and ANA in Tokyo.
  • When you fly from Seattle to Melbourne in Victoria, Australia, you will land at Melbourne Airport (MEL). The cheapest flights available tend to involve multiple airlines and connection cities with self-transfers. However, Singapore Airlines offers flights paired with both Scoot and Jetstar that are affordable and have only one stop in Singapore Changi International Airport (SIN).
  • If you want to visit the north of Queensland, the coastal city of Cairns makes an ideal destination. You'll be landing at Cairns Airport (CNS), a hub for Jetstar, Qantas, Australian Airlines, and others. One of the most affordable flights available is aboard Japan Airlines paired with Jetstar with one stop in Narita International Airport (NRT).
  • Economy-ticketed passengers at Seattle-Tacoma International Airport can relax in refined comfort and style while waiting for a flight to Australia. You can show a prepaid lounge pass or pay an entrance fee in order to access the exclusive lounge The Club at SEA. There is one location in the Central Terminal and one in the South Satellite.

Everything you need to know for your flight from Seattle to Australia

Information on your arrival and departure airports

Seattle (SEA)