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Look for other cheap flights to Seattle/Tacoma Intl

$724 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 15/6. 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

Enter your travel dates to find the best prices.
United Airlines Logo
09:30 - 21:59
MEL
-
SEA
29h 29m
1 stop
United Airlines Logo
14:36 - 07:30
SEA
-
MEL
23h 54m
2 stops
$1,180United Airlines
Fri, 29 May - Wed, 24 Jun
Multiple Airlines Logo
06:00 - 18:30
MEL
-
SEA
29h 30m
2 stops
Multiple Airlines Logo
19:20 - 11:25
SEA
-
MEL
23h 05m
2 stops
$1,267Multiple Airlines
Fri, 8 May - Fri, 12 Jun
Air Canada Logo
06:00 - 10:05
MEL
-
SEA
21h 05m
2 stops
Air Canada Logo
14:55 - 11:05
SEA
-
MEL
27h 10m
2 stops
$1,271Air Canada
Thu, 7 May - Fri, 15 May
Air Canada Logo
06:00 - 18:30
MEL
-
SEA
29h 30m
2 stops
Air Canada Logo
14:55 - 11:05
SEA
-
MEL
27h 10m
2 stops
$1,277Air Canada
Fri, 8 May - Fri, 15 May
Qantas Airways Logo
22:55 - 22:58
PER
-
SEA
39h 03m
2 stops
Qantas Airways Logo
19:06 - 13:35
SEA
-
PER
27h 29m
2 stops
$1,758Qantas Airways
Mon, 20 Apr - Mon, 27 Apr
Virgin Australia Logo
07:15 - 21:06
CBR
-
SEA
30h 51m
2 stops
Virgin Australia Logo
08:38 - 13:15
SEA
-
CBR
35h 37m
2 stops
$2,112Virgin Australia
Sun, 10 May - Sun, 17 May
Virgin Australia Logo
07:15 - 21:06
CBR
-
SEA
30h 51m
2 stops
Virgin Australia Logo
08:38 - 10:40
SEA
-
CBR
33h 02m
2 stops
$2,199Virgin Australia
Fri, 8 May - Fri, 15 May
Singapore Airlines Logo
16:45 - 08:45
LST
-
SEA
57h 00m
2 stops
Singapore Airlines Logo
10:15 - 16:05
SEA
-
LST
36h 50m
2 stops
$2,414Singapore Airlines
Wed, 2 Sep - Sat, 5 Sep
Singapore Airlines Logo
16:45 - 08:45
LST
-
SEA
57h 00m
2 stops
Singapore Airlines Logo
10:15 - 09:40
SEA
-
LST
30h 25m
2 stops
$2,430Singapore Airlines
Wed, 2 Sep - Sat, 5 Sep
Qantas Airways Logo
17:00 - 22:58
LST
-
SEA
46h 58m
2 stops
Qantas Airways Logo
17:00 - 13:05
SEA
-
LST
27h 05m
2 stops
$3,073Qantas Airways
Thu, 14 May - Mon, 18 May

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 27 March 2026.
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

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

09:30-21:59

1 stop29h 29m

Seattle/Tacoma Intl

Wed 24/6

14:36-07:30

2 stops23h 54m

$1,180

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 8/5

06:00-18:30

2 stops29h 30m

Seattle/Tacoma Intl

Fri 12/6

19:20-11:25

2 stops23h 05m

$1,267
Fastest return journey

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 7/5

06:00-10:05

2 stops21h 05m

Seattle/Tacoma Intl

Fri 15/5

14:55-11:05

2 stops27h 10m

$1,271

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 8/5

06:00-18:30

2 stops29h 30m

Seattle/Tacoma Intl

Fri 15/5

14:55-11:05

2 stops27h 10m

$1,277

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 20/4

22:55-22:58

2 stops39h 03m

Seattle/Tacoma Intl

Mon 27/4

19:06-13:35

2 stops27h 29m

$1,758

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Sun 10/5

07:15-21:06

2 stops30h 51m

Seattle/Tacoma Intl

Sun 17/5

08:38-13:15

2 stops35h 37m

$2,112

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Fri 8/5

07:15-21:06

2 stops30h 51m

Seattle/Tacoma Intl

Fri 15/5

08:38-10:40

2 stops33h 02m

$2,199

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Wed 2/9

16:45-08:45

2 stops57h 00m

Seattle/Tacoma Intl

Sat 5/9

10:15-16:05

2 stops36h 50m

$2,414

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Wed 2/9

16:45-08:45

2 stops57h 00m

Seattle/Tacoma Intl

Sat 5/9

10:15-09:40

2 stops30h 25m

$2,430

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Thu 14/5

17:00-22:58

2 stops46h 58m

Seattle/Tacoma Intl

Mon 18/5

17:00-13:05

2 stops27h 05m

$3,073

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 August is, on average, the cheapest month to fly to Seattle from Australia, with most prices found around $1,293. If you are unable to visit Seattle during the month of August, then departing from Australia during the month September is also very affordable. Most momondo users find prices during this month for around $1,332.

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 $1,531 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 $1,277 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 SYDNEYAugust16% cheaperFlying from Sydney to Seattle costs on average just $1,293 in August
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM SYDNEYJuly33% more expensiveIt costs about $2,044 for flights to Seattle from Sydney in July
MOST POPULAR MONTH TO FLY TO SEATTLE FROM SYDNEYJune654% 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

$724

Best Round-Trip Price

$1,180

Fastest flight time

26h 31m

Popular in

April
The best one-way flight price to Seattle from Australia in the last 72 hours is $724 (Melbourne to Seattle/Tacoma Intl).
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The best round-trip flight price to Seattle from Australia in the last 72 hours is $1,180 (Melbourne to Seattle/Tacoma Intl).
Search Deals
The fastest flight to Seattle from Australia takes 26h 31m (Perth to Seattle/Tacoma Intl).
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April has the highest demand for flights to Seattle, with a 3% price increase on average.
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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 Seattle Waterfront.

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 and Seattle Waterfront.

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

The ideal time to book your flight to Seattle is 39 days in advance, when prices tend to average $1,531. Keep in mind that you might also find cheap flights to Seattle outside of this time window. In fact, momondo users recently found flights from Australia to Seattle for $923.

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 March 2026, there are 15 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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