Seattle

$545+ Cheap flights from Australia to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
jul. 3 — jul. 101
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Cheap flight deals from Australia to Seattle

Cheapest flights from Australia to Seattle
Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 3, 2026.

This lol.travel deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/410:15 am
BNE
-
SEA
1 stop16h 50m
Air Canada
mié. 6/177:20 pm
SEA
-
BNE
1 stop18h 45m
Air Canada
Deal found 6/2$817
This lol.travel deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/49:20 am
SYD
-
SEA
1 stop22h 00m
Air Canada
mié. 6/1710:45 am
SEA
-
SYD
1 stop27h 35m
Air Canada
Deal found 6/2$819
This lol.travel deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/410:15 am
BNE
-
SEA
1 stop25h 15m
Multiple Airlines
mié. 6/177:20 pm
SEA
-
BNE
2 stops23h 10m
Multiple Airlines
Deal found 6/2$834
This lol.travel deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/47:30 am
SYD
-
SEA
2 stops19h 35m
Multiple Airlines
mié. 6/173:00 pm
SEA
-
SYD
1 stop23h 20m
Multiple Airlines
Deal found 6/2$834
This Air Canada deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/2910:00 am
BNE
-
SEA
1 stop17h 07m
Air Canada
mar. 9/110:45 am
SEA
-
BNE
1 stop27h 20m
Air Canada
Deal found 6/2$862
This Air Canada deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2810:00 am
BNE
-
SEA
1 stop25h 32m
Air Canada
mar. 10/610:30 am
SEA
-
BNE
1 stop27h 35m
Air Canada
Deal found 5/31$864
This Air Canada deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/19:20 am
SYD
-
SEA
1 stop22h 02m
Air Canada
mar. 11/1010:10 am
SEA
-
SYD
1 stop28h 25m
Air Canada
Deal found 5/30$867
This Flightnetwork deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/299:20 am
SYD
-
SEA
1 stop17h 47m
Multiple Airlines
mar. 9/17:20 pm
SEA
-
SYD
2 stops22h 20m
Multiple Airlines
Deal found 6/1$870
This Air Canada deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/16:00 am
SYD
-
SEA
2 stops20h 52m
Multiple Airlines
lun. 10/127:20 pm
SEA
-
SYD
1 stop19h 00m
Multiple Airlines
Deal found 5/30$877
This Air Canada deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/298:40 pm
BNE
-
SEA
2 stops30h 27m
Multiple Airlines
mar. 9/17:20 pm
SEA
-
BNE
1 stop18h 45m
Multiple Airlines
Deal found 6/2$881
This Air Canada deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/29:00 am
SYD
-
SEA
2 stops24h 37m
Air Canada
mar. 11/103:15 pm
SEA
-
SYD
1 stop23h 20m
Air Canada
Deal found 5/30$883
This Air Canada deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/288:40 pm
BNE
-
SEA
2 stops30h 12m
Multiple Airlines
mar. 10/63:00 pm
SEA
-
BNE
1 stop23h 05m
Multiple Airlines
Deal found 5/31$884

Find flight deals from Australia to Seattle

Keep the following information in mind while searching for Australia to Seattle flight deals. Data was last updated junio 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$862
(Air Canada)

One-way from

$545
(Air Canada)

Popular in

January

Cheapest in

September

Average price

$1,062
Provider with most accurate pricing for Sydney Kingsford Smith-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Seattle/Tacoma Intl flights.
From Australia to Seattle/Tacoma Intl
One-way flight from Australia to Seattle/Tacoma Intl
Highest demand for flights based on searches. 7% potential increase in price ($77 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 3, 2026.
Use the filters below to find and compare flights from Australia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

vie. 6/19

10:55 am-7:03 pm

1 stop25h 08m

Seattle/Tacoma Intl

vie. 7/24

7:05 pm-8:15 am

1 stop20h 10m

$933

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

dom. 6/14

10:55 am-12:42 pm

1 stop18h 47m

Seattle/Tacoma Intl

jue. 7/2

10:29 am-8:15 am

1 stop28h 46m

$933

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

lun. 7/6

10:55 am-6:47 pm

1 stop24h 52m

Seattle/Tacoma Intl

mar. 8/11

11:03 am-8:15 am

2 stops28h 12m

$934

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

vie. 6/19

10:00 am-8:34 pm

1 stop27h 34m

Seattle/Tacoma Intl

vie. 7/24

11:09 am-7:50 am

2 stops27h 41m

$943

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

lun. 8/3

10:55 am-2:30 pm

1 stop20h 35m

Seattle/Tacoma Intl

sáb. 9/5

5:00 am-8:15 am

2 stops34h 15m

$943

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

mié. 7/15

9:15 am-8:27 pm

1 stop28h 12m

Seattle/Tacoma Intl

mié. 7/29

3:10 pm-6:50 am

1 stop22h 40m

$973
Quickest round-trip

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

jue. 7/30

10:20 am-12:34 pm

1 stop19h 14m

Seattle/Tacoma Intl

jue. 9/3

7:35 pm-6:55 am

1 stop18h 20m

$1,027

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

mar. 7/14

9:15 am-6:33 pm

2 stops26h 18m

Seattle/Tacoma Intl

jue. 7/30

9:30 am-6:50 am

2 stops28h 20m

$1,028

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

sáb. 6/13

9:30 am-2:38 pm

1 stop22h 08m

Seattle/Tacoma Intl

sáb. 6/27

11:49 pm-7:00 am

2 stops38h 11m

$1,028

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

mié. 10/21

8:00 am-2:22 pm

2 stops24h 22m

Seattle/Tacoma Intl

dom. 10/25

10:10 am-8:35 am

1 stop28h 25m

$1,039

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Australia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Australia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Australia to Seattle?

Currently, December is the cheapest month in which you can book a flight from Australia to Seattle (average of $427). Flying from Australia to Seattle in April is currently the most expensive (average of $755). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Australia to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated junio 3, 2026.
Get a feel of what it's like to fly with United Airlines and Air Canada from Australia to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Australia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from Australia?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Australia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Australia to Seattle?

    Air Canada, United Airlines, and Delta can get you from Australia to Seattle in just under 17h 07m. Your travel time can differ by up to 11h 05m. The distance between Australia and Seattle is about 7346 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Australia to Seattle one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $379. Users have also found prices from $415 and $437 on Air Canada and Hawaiian Airlines, respectively.

  • What are the most popular routes from Australia to Seattle?

  • Can I find deals for flights from Australia to Seattle that include hotel bookings?

    Yes. In addition to deals on Australia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Australia to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Seattle.

  • Can I find deals for business class flights from Australia to Seattle?

    Yes. Cheapflights offers flight deals from Australia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Australia to Seattle?

    Currently, December is the cheapest month in which you can book a flight from Australia to Seattle (average of $427). Flying from Australia to Seattle in April is currently the most expensive (average of $755). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Ocean Shores
Olympia
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Australia to Seattle

Discover the top 2 airlines that operate flights from Australia to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$431Average$1,065FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$754Average$1,129FlexibilityNo cancel feeOn-time69%

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