Look for other cheap flights to Seattle/Tacoma Intl

$616 Cheap flights to Seattle

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Seattle departing on 15/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Australia to Seattle

Cheap return flights

American Airlines Logo
09:10 - 14:01SYD-SEA
21h 51m1 stop
American Airlines Logo
07:40 - 08:05SEA-SYD
30h 25m1 stop
$1,259American Airlines
Find Deal
Sun, 24 Aug - Mon, 20 Oct
Air Canada Logo
11:20 - 14:26SYD-SEA
22h 06m1 stop
Air Canada Logo
10:05 - 09:35SEA-SYD
28h 30m1 stop
$1,262Air Canada
Find Deal
Fri, 7 Nov - Tue, 11 Nov
United Airlines Logo
09:30 - 15:52SYD-SEA
23h 22m2 stops
United Airlines Logo
12:43 - 06:55SEA-SYD
25h 12m2 stops
$1,280United Airlines
Find Deal
Thu, 4 Sep - Wed, 17 Sep
United Airlines Logo
09:30 - 13:30SYD-SEA
21h 00m1 stop
United Airlines Logo
06:35 - 08:00SEA-SYD
31h 25m1 stop
$1,285United Airlines
Find Deal
Tue, 26 Aug - Sat, 18 Oct
Qantas Airways Logo
17:45 - 20:24SYD-SEA
19h 39m1 stop
Qantas Airways Logo
16:59 - 07:05SEA-SYD
21h 06m1 stop
$1,310Qantas Airways
Find Deal
Wed, 10 Sep - Tue, 30 Sep
Qantas Airways Logo
17:45 - 21:36SYD-SEA
20h 51m1 stop
Qantas Airways Logo
17:59 - 07:05SEA-SYD
20h 06m1 stop
$1,325Qantas Airways
Find Deal
Wed, 3 Sep - Thu, 25 Sep
Virgin Australia Logo
10:20 - 16:24SYD-SEA
23h 04m1 stop
Virgin Australia Logo
19:37 - 07:55SEA-SYD
18h 18m1 stop
$1,579Virgin Australia
Find Deal
Sat, 27 Sep - Sat, 4 Oct
Virgin Australia Logo
10:55 - 21:15MEL-SEA
27h 20m1 stop
Virgin Australia Logo
07:05 - 10:00SEA-MEL
31h 55m1 stop
$1,601Virgin Australia
Find Deal
Sun, 28 Sep - Thu, 1 Jan
Singapore Airlines Logo
01:10 - 07:10PER-SEA
22h 00m1 stop
Singapore Airlines Logo
17:47 - 14:45SEA-PER
28h 58m2 stops
$2,493Singapore Airlines
Find Deal
Wed, 19 Nov - Mon, 24 Nov
Singapore Airlines Logo
01:10 - 07:10PER-SEA
22h 00m1 stop
Singapore Airlines Logo
17:47 - 14:45SEA-PER
28h 58m2 stops
$2,504Singapore Airlines
Find Deal
Wed, 19 Nov - Mon, 24 Nov

momondo Fare Finder

 
Locate flights to Seattle/Tacoma Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 14 August 2025.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 24/8

09:10-14:01

1 stop21h 51m

Seattle/Tacoma Intl

Mon 20/10

07:40-08:05

1 stop30h 25m

$1,259

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 7/11

11:20-14:26

1 stop22h 06m

Seattle/Tacoma Intl

Tue 11/11

10:05-09:35

1 stop28h 30m

$1,262

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 4/9

09:30-15:52

2 stops23h 22m

Seattle/Tacoma Intl

Wed 17/9

12:43-06:55

2 stops25h 12m

$1,280

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 26/8

09:30-13:30

1 stop21h 00m

Seattle/Tacoma Intl

Sat 18/10

06:35-08:00

1 stop31h 25m

$1,285

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 10/9

17:45-20:24

1 stop19h 39m

Seattle/Tacoma Intl

Tue 30/9

16:59-07:05

1 stop21h 06m

$1,310

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/9

17:45-21:36

1 stop20h 51m

Seattle/Tacoma Intl

Thu 25/9

17:59-07:05

1 stop20h 06m

$1,325

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 27/9

10:20-16:24

1 stop23h 04m

Seattle/Tacoma Intl

Sat 4/10

19:37-07:55

1 stop18h 18m

$1,579

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 28/9

10:55-21:15

1 stop27h 20m

Seattle/Tacoma Intl

Thu 1/1

07:05-10:00

1 stop31h 55m

$1,601

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 19/11

01:10-07:10

1 stop22h 00m

Seattle/Tacoma Intl

Mon 24/11

17:47-14:45

2 stops28h 58m

$2,493

PerthSeattle

PER - SEA

PERSEA

Perth

Wed 19/11

01:10-07:10

1 stop22h 00m

Seattle/Tacoma Intl

Mon 24/11

17:47-14:45

2 stops28h 58m

$2,504

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 February is, on average, the cheapest month to fly to Seattle from Australia, with most prices found around $1,537. If you are unable to visit Seattle during the month of February, then departing from Australia during the month August is also very affordable. Most momondo users find prices during this month for around $1,541.

What is the cheapest day to depart on your flight to Seattle?

The cheapest day to depart from Australia to Seattle is on a Thursday. Travellers who choose to depart for Seattle on a Thursday will often find tickets for as low as $1,577. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Australia to Seattle for around $1,813.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from Australia to Seattle at midday for as low as $1,503. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the afternoon when prices are around $1,835.

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 $1,710 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 $1,460 on momondo.

Cheapest flights to Seattle/Tacoma Intl

Find the cheapest flights to Seattle/Tacoma Intl from your nearest city or airport
CHEAPEST MONTH TO FLY TO SEATTLE FROM SYDNEYFebruary11% cheaperFlying from Sydney to Seattle costs on average just $1,537 in February
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM SYDNEYDecember24% more expensiveIt costs about $2,125 for flights to Seattle from Sydney in December
MOST POPULAR MONTH TO FLY TO SEATTLE FROM SYDNEYJune578% more users visitedMore momondo users searched in flights to Seattle from Sydney in June than any other month

Cheap Seattle flight deals and tips

Summary info about Seattle flight prices, duration and airlines

Best One-Way Price

$616

Best Round-Trip Price

$1,259

Fastest flight time

17h 11m

Popular in

July
The best one-way flight price to Seattle from Australia in the last 72 hours is $616 (Sydney Kingsford Smith to Seattle/Tacoma Intl).
The best round-trip flight price to Seattle from Australia in the last 72 hours is $1,259 (Sydney Kingsford Smith to Seattle/Tacoma Intl).
The fastest flight to Seattle from Australia takes 17h 11m (Sydney Kingsford Smith to Seattle/Tacoma Intl).
July has the highest demand for flights to Seattle, with a 6% price increase on average.

Frequently asked questions about flying to Seattle

What is there to do in Seattle when it’s raining?

When planning your flight to Seattle, it is important to be aware that some months are not as ideal as others. Specifically, the months of January, November, or December could carry a higher chance of rain, as Seattle sees up to 5.1 inches (130 mm) or more. There are still things to do in Seattle even when it's raining, but be aware that rain is highly probable in the area. For those looking to get out of the rain and do a little shopping, check out Pike Place Market.

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 Pike Place Market, Space Needle, and Seattle Waterfront.

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

The ideal time to book your flight to Seattle is 52 days in advance, when prices tend to average $1,710.

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.

Is there a cheaper alternative to flying into Seattle?

The cheapest airport near Seattle is typically Everett Paine Field Airport, with an average price of $305/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Seattle?

$220 is the cheapest deal found on momondo in the last two weeks for a flight to Seattle. This flight is from Chicago and is 28% cheaper than most flights to Seattle. To find the cheapest price to Seattle from your area, use momondo’s Airport-to-Airport Pricing Tool.

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?

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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Tue 19/8
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