Which airlines fly to Seattle?

Based on our data, the most popular airlines that fly to Seattle from Australia are United Airlines, Air Canada, Singapore Airlines and Virgin Australia. 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 10 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 $1,322 (Brisbane to Seattle). Users have rated EVA Air 8.4/10 in over 1,250 reviews on momondo.

ANA Flights to Seattle

ANA flight deals to Seattle start from $1,594 - 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 984 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 19h 14m on average. If you fly from Melbourne (another popular airport in Australia) to Seattle/Tacoma Intl, then the average flight time is 20h 21m.

$772 Cheap Flights to Seattle in 2025/26

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12:00 - 17:14MEL-SEA

24h 14m2 stops

06:00 - 09:30SEA-MEL

32h 30m1 stop

$1,196American Airlines

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Thu, 29 Jan - Mon, 16 Feb

12:00 - 20:57MEL-SEA

27h 57m2 stops

06:00 - 09:30SEA-MEL

32h 30m1 stop

$1,206American Airlines

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Thu, 29 Jan - Mon, 16 Feb

11:30 - 22:28MEL-SEA

29h 58m1 stop

23:59 - 10:00SEA-MEL

39h 01m2 stops

$1,213United Airlines

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Thu, 18 Dec - Fri, 2 Jan

11:30 - 21:17MEL-SEA

28h 47m2 stops

12:35 - 10:00SEA-MEL

26h 25m1 stop

$1,244United Airlines

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Thu, 18 Dec - Mon, 29 Dec

07:10 - 22:06MEL-SEA

32h 56m2 stops

20:00 - 12:35SEA-MEL

22h 35m2 stops

$1,374Air Canada

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Wed, 11 Mar - Sun, 15 Mar

07:10 - 22:06MEL-SEA

32h 56m2 stops

20:00 - 13:05SEA-MEL

23h 05m2 stops

$1,385Air Canada

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Wed, 11 Mar - Sun, 15 Mar

11:20 - 18:11SYD-SEA

25h 51m1 stop

16:47 - 09:00SEA-SYD

21h 13m1 stop

$1,497Qantas Airways

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Sun, 9 Nov - Mon, 24 Nov

01:15 - 07:10PER-SEA

21h 55m1 stop

08:45 - 12:35SEA-PER

35h 50m1 stop

$1,947Singapore Airlines

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Thu, 27 Nov - Fri, 5 Dec

01:15 - 07:10PER-SEA

21h 55m1 stop

08:45 - 23:55SEA-PER

47h 10m1 stop

$2,049Singapore Airlines

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Mon, 2 Feb - Tue, 10 Feb

17:45 - 20:23CBR-SEA

21h 38m2 stops

06:05 - 17:05SEA-CBR

40h 00m2 stops

$2,175Qantas Airways

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Wed, 26 Nov - Wed, 3 Dec

Fly from

Route

Depart

Return

Price

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 29/1

12:00-17:14

2 stops24h 14m

Seattle/Tacoma Intl

Mon 16/2

06:00-09:30

1 stop32h 30m

$1,196

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 29/1

12:00-20:57

2 stops27h 57m

Seattle/Tacoma Intl

Mon 16/2

06:00-09:30

1 stop32h 30m

$1,206

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 18/12

11:30-22:28

1 stop29h 58m

Seattle/Tacoma Intl

Fri 2/1

23:59-10:00

2 stops39h 01m

$1,213

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 18/12

11:30-21:17

2 stops28h 47m

Seattle/Tacoma Intl

Mon 29/12

12:35-10:00

1 stop26h 25m

$1,244

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Wed 11/3

07:10-22:06

2 stops32h 56m

Seattle/Tacoma Intl

Sun 15/3

20:00-12:35

2 stops22h 35m

$1,374

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Wed 11/3

07:10-22:06

2 stops32h 56m

Seattle/Tacoma Intl

Sun 15/3

20:00-13:05

2 stops23h 05m

$1,385

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 9/11

11:20-18:11

1 stop25h 51m

Seattle/Tacoma Intl

Mon 24/11

16:47-09:00

1 stop21h 13m

$1,497

PerthSeattle

PER - SEA

PERSEA

Perth

Thu 27/11

01:15-07:10

1 stop21h 55m

Seattle/Tacoma Intl

Fri 5/12

08:45-12:35

1 stop35h 50m

$1,947

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 2/2

01:15-07:10

1 stop21h 55m

Seattle/Tacoma Intl

Tue 10/2

08:45-23:55

1 stop47h 10m

$2,049

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Wed 26/11

17:45-20:23

2 stops21h 38m

Seattle/Tacoma Intl

Wed 3/12

06:05-17:05

2 stops40h 00m

$2,175

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 $1,399. 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 $1,496.

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 $1,578. 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 $1,814.

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 $1,504. 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 $1,681 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 $1,371 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	17% cheaper	Flying from Sydney to Seattle costs on average just $1,399 in August
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM SYDNEY	July	24% more expensive	It costs about $2,091 for flights to Seattle from Sydney in July
MOST POPULAR MONTH TO FLY TO SEATTLE FROM SYDNEY	June	537% 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	$772
Best Round-Trip Price	$1,196
Fastest flight time	20h 56m
Popular in	July

The best one-way flight price to Seattle from Australia in the last 72 hours is $772 (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 $1,196 (Melbourne to Seattle/Tacoma Intl).

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The fastest flight to Seattle from Australia takes 20h 56m (Sydney Kingsford Smith to Seattle/Tacoma Intl).

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July has the highest demand for flights to Seattle, with a 6% 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 $1,681.

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 October 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.

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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.

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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.