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Cheap flights from Australia to Seattle from $569

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to Seattle departing on 5/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Australia to Seattle

Recent round-trip flight deals from Australia to Seattle

Enter your travel dates to find the best prices.
United Airlines Logo
10:55 am - 11:32 pm
MEL
-
SEA
29h 37m
1 stop
United Airlines Logo
5:15 pm - 8:15 am
SEA
-
MEL
46h 00m
2 stops
$933United Airlines
Sun, Jun 7 - Sat, Jun 13
United Airlines Logo
10:55 am - 9:22 am
MEL
-
SEA
39h 27m
1 stop
United Airlines Logo
6:48 pm - 8:15 am
SEA
-
MEL
20h 27m
1 stop
$934United Airlines
Sun, May 31 - Sun, Jun 7
United Airlines Logo
10:55 am - 4:20 pm
MEL
-
SEA
22h 25m
1 stop
United Airlines Logo
7:05 pm - 8:15 am
SEA
-
MEL
20h 10m
1 stop
$939United Airlines
Tue, Jun 2 - Wed, Jul 8
Delta Logo
10:00 am - 4:40 pm
MEL
-
SEA
23h 40m
1 stop
Delta Logo
9:48 pm - 7:50 am
SEA
-
MEL
41h 02m
1 stop
$948Delta
Fri, Jul 31 - Sun, Aug 9
Delta Logo
10:00 am - 10:01 pm
MEL
-
SEA
29h 01m
2 stops
Delta Logo
5:30 pm - 7:50 am
SEA
-
MEL
21h 20m
1 stop
$949Delta
Fri, Jun 5 - Fri, Jun 12
Multiple Airlines Logo
9:10 am - 12:01 pm
SYD
-
SEA
19h 51m
1 stop
Multiple Airlines Logo
12:38 pm - 7:05 am
SEA
-
SYD
25h 27m
1 stop
$956Multiple Airlines
Tue, Jun 2 - Tue, Jun 16
American Airlines Logo
9:10 am - 9:49 pm
SYD
-
SEA
29h 39m
1 stop
American Airlines Logo
2:40 pm - 7:05 am
SEA
-
SYD
23h 25m
1 stop
$959American Airlines
Mon, Jun 1 - Mon, Jun 22
American Airlines Logo
9:10 am - 5:44 pm
SYD
-
SEA
25h 34m
2 stops
American Airlines Logo
2:03 pm - 7:05 am
SEA
-
SYD
24h 02m
2 stops
$967American Airlines
Tue, Jun 2 - Tue, Jun 16
Multiple Airlines Logo
9:10 am - 12:56 pm
SYD
-
SEA
20h 46m
1 stop
Multiple Airlines Logo
5:10 pm - 7:05 am
SEA
-
SYD
20h 55m
1 stop
$969Multiple Airlines
Tue, Jun 2 - Wed, Jun 17
Air Canada Logo
10:40 pm - 10:05 am
PER
-
SEA
26h 25m
2 stops
Air Canada Logo
7:20 pm - 3:45 pm
SEA
-
PER
29h 25m
2 stops
$1,392Air Canada
Thu, Jun 4 - Thu, Jun 11

Qatar Airways flights from Australia to Seattle

Our best Qatar Airways deals on Australia to Seattle flight tickets
Qatar Airways
Aug 6
LST10:15 amLaunceston
43h 10m
2 stops
SEA12:25 pmSeattle/Tacoma Intl
Aug 10
SEA4:25 pmSeattle/Tacoma Intl
54h 40m
2 stops
LST4:05 pmLaunceston
$1,676
Qatar Airways
May 12
SYD7:15 amSydney Kingsford Smith
48h 30m
2 stops
SEA2:45 pmSeattle/Tacoma Intl
May 18
SEA5:05 pmSeattle/Tacoma Intl
35h 45m
2 stops
SYD9:50 pmSydney Kingsford Smith
$2,431

Air New Zealand flights from Australia to Seattle

Our best Air New Zealand deals on Australia to Seattle flight tickets
Air New Zealand
Jun 3
SYD9:30 amSydney Kingsford Smith
26h 48m
1 stop
SEA7:18 pmSeattle/Tacoma Intl
Jun 28
SEA6:00 amSeattle/Tacoma Intl
32h 00m
1 stop
SYD7:00 amSydney Kingsford Smith
$994
Air New Zealand
Jun 3
SYD10:20 amSydney Kingsford Smith
21h 10m
1 stop
SEA2:30 pmSeattle/Tacoma Intl
Jun 28
SEA6:00 amSeattle/Tacoma Intl
32h 00m
1 stop
SYD7:00 amSydney Kingsford Smith
$1,002
Air New Zealand
Jun 3
SYD9:30 amSydney Kingsford Smith
26h 48m
1 stop
SEA7:18 pmSeattle/Tacoma Intl
Jun 28
SEA6:00 amSeattle/Tacoma Intl
32h 00m
1 stop
SYD7:00 amSydney Kingsford Smith
$1,003

momondo 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, momondo users made 832,500 searches. Data last updated May 11, 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

Sun 6/7

10:55 am-11:32 pm

1 stop29h 37m

Seattle/Tacoma Intl

Sat 6/13

5:15 pm-8:15 am

2 stops46h 00m

$933

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 5/31

10:55 am-9:22 am

1 stop39h 27m

Seattle/Tacoma Intl

Sun 6/7

6:48 pm-8:15 am

1 stop20h 27m

$934

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 6/2

10:55 am-4:20 pm

1 stop22h 25m

Seattle/Tacoma Intl

Wed 7/8

7:05 pm-8:15 am

1 stop20h 10m

$939

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 7/31

10:00 am-4:40 pm

1 stop23h 40m

Seattle/Tacoma Intl

Sun 8/9

9:48 pm-7:50 am

1 stop41h 02m

$948

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 6/5

10:00 am-10:01 pm

2 stops29h 01m

Seattle/Tacoma Intl

Fri 6/12

5:30 pm-7:50 am

1 stop21h 20m

$949

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 6/2

9:10 am-12:01 pm

1 stop19h 51m

Seattle/Tacoma Intl

Tue 6/16

12:38 pm-7:05 am

1 stop25h 27m

$956

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 6/1

9:10 am-9:49 pm

1 stop29h 39m

Seattle/Tacoma Intl

Mon 6/22

2:40 pm-7:05 am

1 stop23h 25m

$959

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 6/2

9:10 am-5:44 pm

2 stops25h 34m

Seattle/Tacoma Intl

Tue 6/16

2:03 pm-7:05 am

2 stops24h 02m

$967
Quickest round-trip

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 6/2

9:10 am-12:56 pm

1 stop20h 46m

Seattle/Tacoma Intl

Wed 6/17

5:10 pm-7:05 am

1 stop20h 55m

$969

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 6/4

10:40 pm-10:05 am

2 stops26h 25m

Seattle/Tacoma Intl

Thu 6/11

7:20 pm-3:45 pm

2 stops29h 25m

$1,392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Australia to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, December is the cheapest month to fly from Australia to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $427. If you don’t want to visit Seattle in December, then you should wait until August to fly from Australia, when ticket prices are also cheap, with an average price of $431.

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

You are more likely to see cheaper flights to Seattle from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,018 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Australia for as low as $692 on momondo.

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 13% on your flight if you consider stops on a Australia to Seattle flight.

Cheap Australia to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to Seattle

Fastest flight time

18h 12m

Direct flights

None
The fastest flight from Australia to Seattle takes 18h 12m
There are no direct flights from Australia to Seattle. There are no popular flight routes from Australia to Seattle.
Search flight deals

Frequently asked questions about flying from Australia to Seattle

  • When did momondo last update prices for flights from Australia to Seattle/Tacoma Intl Airport?

    Prices for flights from Australia to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Australia to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Australia to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Australia to Seattle

Compare and see reviews for airlines that fly from Australia to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $431Free CancellationRating
7.1
11,017 reviews
Search Air Canada flights
United AirlinesPriceFrom $754Free CancellationRating
7.4
9,699 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Tukwila
Puyallup
Marysville
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Australia to Seattle?

It is quick and easy to find Australia to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Australia to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Australia with this policy.

How can momondo help me find flights from Australia to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Australia to Seattle.

I’m not ready to book a flight from Australia to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Australia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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