Which airlines fly to Seattle?

Based on our data, the most popular airlines that fly to Seattle from Australia are United Airlines, Air Canada, Virgin Australia and Singapore Airlines. There may also be other airline options depending on where in Australia you’re flying from.

EVA Air Flights to Seattle

EVA Air operates around 11 flights into Seattle in any given week. The most common departure point for these flights was from Taipei City Taiwan Taoyuan Intl, with the best return EVA Air deal found being $1,295 (Brisbane to Seattle). Users have rated EVA Air 8.4/10 in over 1,236 reviews on momondo.

ANA Flights to Seattle

ANA flight deals to Seattle start from $1,562 - this is the best price found recently on momondo, and was a return journey departing from Perth. Over any normal week, ANA flight prices are typically higher, but vary depending on where you fly from - San Francisco is the most popular ANA departure point to Seattle so generally has the most availability. ANA is scored a 8.4/10 in 961 reviews.

How long does it take to fly to Seattle?

The flight from Australia to Seattle depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Sydney Kingsford Smith (a popular airport in Australia) to Seattle/Tacoma Intl (the most popular airport in Seattle), then the flight time is 17h 11m on average. If you fly from Melbourne (another popular airport in Australia) to Seattle/Tacoma Intl, then the average flight time is 18h 07m.

$630 Cheap Flights to Seattle in 2025

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Find the cheapest flights from Australia to Seattle

Round-trip

One-way

Last minute

Cheap return flights

10:20 - 22:31SYD-SEA

30h 11m1 stop

10:00 - 08:20SEA-SYD

28h 20m1 stop

$1,117Air Canada

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Fri, 17 Oct - Sun, 19 Oct

07:30 - 14:16SYD-SEA

24h 46m2 stops

14:55 - 08:20SEA-SYD

23h 25m1 stop

$1,143Air Canada

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Fri, 17 Oct - Sun, 19 Oct

11:55 - 14:24MEL-SEA

20h 29m1 stop

14:40 - 10:00SEA-MEL

24h 20m1 stop

$1,261United Airlines

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Mon, 20 Oct - Thu, 13 Nov

12:10 - 23:10SYD-SEA

29h 00m2 stops

17:07 - 09:05SEA-SYD

20h 58m1 stop

$1,263United Airlines

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Mon, 27 Oct - Mon, 3 Nov

11:15 - 12:56SYD-SEA

20h 41m1 stop

06:02 - 07:25SEA-SYD

30h 23m1 stop

$1,309Qantas Airways

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Thu, 15 Jan - Thu, 22 Jan

11:30 - 12:56BNE-SEA

19h 26m1 stop

15:35 - 05:00SEA-BNE

19h 25m1 stop

$1,400Qantas Airways

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Thu, 15 Jan - Tue, 3 Feb

06:00 - 12:18CNS-SEA

23h 18m2 stops

09:25 - 23:05SEA-CNS

43h 40m2 stops

$1,717Virgin Australia

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Mon, 27 Oct - Mon, 3 Nov

06:40 - 07:10PER-SEA

40h 30m1 stop

08:45 - 12:35SEA-PER

35h 50m1 stop

$1,866Singapore Airlines

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Mon, 16 Feb - Thu, 26 Feb

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,909Singapore Airlines

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Wed, 11 Mar - Sun, 15 Mar

16:05 - 11:39LST-SEA

38h 34m2 stops

09:25 - 15:25SEA-LST

35h 00m2 stops

$2,072Virgin Australia

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Thu, 13 Nov - Mon, 17 Nov

Fly from

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 17/10

10:20-22:31

1 stop30h 11m

Seattle/Tacoma Intl

Sun 19/10

10:00-08:20

1 stop28h 20m

$1,117

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 17/10

07:30-14:16

2 stops24h 46m

Seattle/Tacoma Intl

Sun 19/10

14:55-08:20

1 stop23h 25m

$1,143

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 20/10

11:55-14:24

1 stop20h 29m

Seattle/Tacoma Intl

Thu 13/11

14:40-10:00

1 stop24h 20m

$1,261

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 27/10

12:10-23:10

2 stops29h 00m

Seattle/Tacoma Intl

Mon 3/11

17:07-09:05

1 stop20h 58m

$1,263

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 15/1

11:15-12:56

1 stop20h 41m

Seattle/Tacoma Intl

Thu 22/1

06:02-07:25

1 stop30h 23m

$1,309

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Thu 15/1

11:30-12:56

1 stop19h 26m

Seattle/Tacoma Intl

Tue 3/2

15:35-05:00

1 stop19h 25m

$1,400

CairnsSeattle

CNS - SEA

CNSSEA

Cairns

Mon 27/10

06:00-12:18

2 stops23h 18m

Seattle/Tacoma Intl

Mon 3/11

09:25-23:05

2 stops43h 40m

$1,717

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 16/2

06:40-07:10

1 stop40h 30m

Seattle/Tacoma Intl

Thu 26/2

08:45-12:35

1 stop35h 50m

$1,866

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,909

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Thu 13/11

16:05-11:39

2 stops38h 34m

Seattle/Tacoma Intl

Mon 17/11

09:25-15:25

2 stops35h 00m

$2,072

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Seattle flights insights and trends

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

Prices

Other information

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 $1,416. If you are unable to visit Seattle during the month of August, then departing from Australia during the month February is also very affordable. Most momondo users find prices during this month for around $1,484.

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 $1,546. 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 $1,778.

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 $1,474. 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 $1,799.

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 $1,663 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 $1,344 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 SYDNEY	August	15% cheaper	Flying from Sydney to Seattle costs on average just $1,416 in August
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM SYDNEY	December	23% more expensive	It costs about $2,060 for flights to Seattle from Sydney in December
MOST POPULAR MONTH TO FLY TO SEATTLE FROM SYDNEY	June	530% more users visited	More 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	$630
Best Round-Trip Price	$1,117
Fastest flight time	17h 01m
Popular in	July

The best one-way flight price to Seattle from Australia in the last 72 hours is $630 (Sydney Kingsford Smith to Seattle/Tacoma Intl).

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The best round-trip flight price to Seattle from Australia in the last 72 hours is $1,117 (Sydney Kingsford Smith to Seattle/Tacoma Intl).

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The fastest flight to Seattle from Australia takes 17h 01m (Sydney Kingsford Smith to Seattle/Tacoma Intl).

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July has the highest demand for flights to Seattle, with a 5% 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 Westlake Center.

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 52 days in advance, when prices tend to average $1,663.

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 $299/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?

$97 is the cheapest deal found on momondo in the last two weeks for a flight to Seattle. This flight is from San Francisco and is 68% 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?

As of September 2025, there are 16 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.

Leavenworth

SeaTac

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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.