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Look for other cheap flights to Seattle/Tacoma Intl

$554 Cheap flights to Seattle

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to Seattle

Cheap return flights

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Multiple Airlines Logo
14:15 - 18:45SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 30m2 stops Nadi Los Angeles Los Angeles
Multiple Airlines Logo
20:09 - 06:25SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
40h 16m1 stop Los Angeles Los Angeles
$1,229Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
British Airways Logo
10:10 - 13:07SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 57m1 stop Los Angeles Los Angeles
British Airways Logo
06:00 - 08:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
32h 05m2 stops Phoenix Sky Harbor Intl Los Angeles Los Angeles
$1,253British Airways
Mon, 5 Oct - Sun, 18 Oct
American Airlines Logo
10:10 - 16:48SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
24h 38m2 stops Los Angeles Los Angeles Dallas/Fort Worth
American Airlines Logo
07:10 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
31h 50m1 stop Los Angeles Los Angeles
$1,281American Airlines
Mon, 19 Oct - Mon, 26 Oct
American Airlines Logo
10:10 - 16:48SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
24h 38m2 stops Los Angeles Los Angeles Dallas/Fort Worth
American Airlines Logo
14:26 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 34m2 stops Dallas/Fort Worth Los Angeles Los Angeles
$1,281American Airlines
Mon, 19 Oct - Mon, 26 Oct
Delta Logo
10:15 - 23:59SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
31h 44m2 stops Los Angeles Los Angeles Salt Lake City
Delta Logo
05:30 - 07:50SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
32h 20m2 stops Salt Lake City Los Angeles Los Angeles
$1,303Delta
Mon, 5 Oct - Sun, 18 Oct
Delta Logo
10:15 - 12:40SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 25m1 stop Los Angeles Los Angeles
Delta Logo
05:30 - 07:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
32h 00m2 stops Salt Lake City Los Angeles Los Angeles
$1,309Delta
Mon, 19 Oct - Mon, 26 Oct
Qantas Airways Logo
18:50 - 22:37SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 47m1 stop Los Angeles Los Angeles
Qantas Airways Logo
16:37 - 08:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
21h 28m1 stop Los Angeles Los Angeles
$1,379Qantas Airways
Mon, 5 Oct - Tue, 20 Oct
United Airlines Logo
11:20 - 15:54BNE  Brisbane-SEA Seattle/Tacoma Intl
22h 34m1 stop San Francisco
United Airlines Logo
17:30 - 06:30SEA  Seattle/Tacoma Intl-BNE Brisbane
20h 00m1 stop San Francisco
$1,389United Airlines
Tue, 2 Mar - Wed, 31 Mar
United Airlines Logo
11:20 - 10:21BNE  Brisbane-SEA Seattle/Tacoma Intl
17h 01m1 stop San Francisco
United Airlines Logo
07:03 - 06:30SEA  Seattle/Tacoma Intl-BNE Brisbane
30h 27m2 stops Houston George Bush Intcntl San Francisco
$1,389United Airlines
Mon, 1 Mar - Wed, 31 Mar
Qantas Airways Logo
10:10 - 13:07SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 57m1 stop Los Angeles Los Angeles
Qantas Airways Logo
15:10 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 50m2 stops Phoenix Sky Harbor Intl Los Angeles Los Angeles
$1,392Qantas Airways
Sun, 18 Oct - Sun, 25 Oct

momondo Fare Finder

 
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 21/10

14:15-18:45

2 stops22h 30m

Seattle/Tacoma Intl

Wed 28/10

20:09-06:25

1 stop40h 16m

$1,229

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 5/10

10:10-13:07

1 stop20h 57m

Seattle/Tacoma Intl

Sun 18/10

06:00-08:05

2 stops32h 05m

$1,253

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 19/10

10:10-16:48

2 stops24h 38m

Seattle/Tacoma Intl

Mon 26/10

07:10-09:00

1 stop31h 50m

$1,281

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 19/10

10:10-16:48

2 stops24h 38m

Seattle/Tacoma Intl

Mon 26/10

14:26-09:00

2 stops24h 34m

$1,281

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 5/10

10:15-23:59

2 stops31h 44m

Seattle/Tacoma Intl

Sun 18/10

05:30-07:50

2 stops32h 20m

$1,303

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 19/10

10:15-12:40

1 stop20h 25m

Seattle/Tacoma Intl

Mon 26/10

05:30-07:30

2 stops32h 00m

$1,309

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 5/10

18:50-22:37

1 stop21h 47m

Seattle/Tacoma Intl

Tue 20/10

16:37-08:05

1 stop21h 28m

$1,379
Fastest return journey

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Tue 2/3

11:20-15:54

1 stop22h 34m

Seattle/Tacoma Intl

Wed 31/3

17:30-06:30

1 stop20h 00m

$1,389

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Mon 1/3

11:20-10:21

1 stop17h 01m

Seattle/Tacoma Intl

Wed 31/3

07:03-06:30

2 stops30h 27m

$1,389

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 18/10

10:10-13:07

1 stop20h 57m

Seattle/Tacoma Intl

Sun 25/10

15:10-09:00

2 stops23h 50m

$1,392

Flights are sorted by cheapest return flights first.

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

Seattle flights insights and trends

Explore insights for your Seattle flight to craft the best travel plan

What is the cheapest month to fly to Seattle?

The month of March is, on average, the cheapest month to fly to Seattle from Australia, with most prices found around $1,385. If you are unable to visit Seattle during the month of March, then departing from Australia during the month August is also very affordable. Most momondo users find prices during this month for around $1,390.

How far in advance should I book a flight 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 $1,532 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Australia for as low as $1,429 on momondo.

Cheapest flights to Seattle/Tacoma Intl

Find the cheapest flights to Seattle/Tacoma Intl from your nearest city or airport
Find flights from Sydney to Seattle
CHEAPEST MONTH TO FLY TO SEATTLE FROM SYDNEYMarch10% cheaperFlying from Sydney to Seattle costs on average just $1,385 in March
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM SYDNEYDecember13% more expensiveIt costs about $1,736 for flights to Seattle from Sydney in December
MOST POPULAR MONTH TO FLY TO SEATTLE FROM SYDNEYJuly295% more users visitedMore momondo users searched in flights to Seattle from Sydney in July than any other month

Cheap Seattle flight deals and tips

Summary info about Seattle flight prices, duration and airlines

Best One-Way Price

$554

Best Round-Trip Price

$1,229

Fastest flight time

22h 30m

Popular in

September
The best one-way flight price to Seattle from Australia in the last 5 days is $554 (Sydney Kingsford Smith to Seattle/Tacoma Intl).
Search Deals
The best return flight price to Seattle from Australia in the last 5 days is $1,229 (Sydney Kingsford Smith to Seattle/Tacoma Intl).
Search Deals
The fastest flight to Seattle from Australia takes 22h 30m (Sydney Kingsford Smith to Seattle/Tacoma Intl).
Search Deals
September has the highest demand for flights to Seattle, with a 10% price increase on average.
Search Deals

Frequently asked questions about flying to Seattle

When is it best to fly to Seattle to go sightseeing?

The city of Seattle has many sights to see while visiting. Many tourists find it ideal to go sightseeing when the weather is warmer, but not blistering. Consider booking your flight to Seattle for October, when temperatures are a bit higher and the chance of rain is relatively low. Many travellers find it worthwhile to visit Space Needle.

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

The ideal time to book your flight to Seattle is 77 days in advance, when prices tend to average $1,532.

Is there an alternative airport near Seattle?

Seattle Lake Union Spb Airport, Seattle King County/Boeing Airport, Kenmore Air Harbor Airport, Everett Paine Field Airport or Lopez Island Airport can be an alternative airport used for travel to Seattle.

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

Prices for flights to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

As of September 2026, there are 12 operators available to choose from for flights to Seattle/Tacoma Intl Airport.

How old do you have to be to fly 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 stopovers. It is recommended that you verify with the airline you are booking with for travel 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 licence 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.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Seattle?

momondo helps you find the best flight to Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle and alert you when they change.

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