How long does it take to fly to Seattle?

Flight times vary depending on what airport in Australia you fly out of and what airport in Seattle you fly into. For example, flying from Brisbane to Seattle takes 16h 35m on average. On the other hand, flying from Melbourne to Seattle takes 18h 30m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Seattle?

United Airlines, Air Canada and Delta are the top three most popular airlines that fly to Seattle from Australia according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Australia to Seattle/Tacoma Intl?

United Airlines, Delta, and EVA Air are the most popular carriers operating from Australia to Seattle/Tacoma Intl

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

Prices for flights from Australia to Seattle/Tacoma Intl Airport are updated daily.

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

As of March 2026, there are 3 operators available to choose from for flights from Australia to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Australia 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Australia 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 license 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.

$501 Cheap Flights from Australia to Seattle in 2026

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Find the cheapest flights from Australia to Seattle

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Recent round-trip flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

9:30 am - 9:10 pm

MEL

SEA

28h 40m

2 stops

2:36 pm - 7:30 am

SEA

MEL

23h 54m

2 stops

$817United Airlines

Fri, May 29 - Wed, Jun 24

10:55 am - 4:20 pm

MEL

SEA

22h 25m

1 stop

11:02 am - 7:30 am

SEA

MEL

27h 28m

2 stops

$820United Airlines

Fri, May 29 - Wed, Jun 24

10:00 am - 4:48 pm

MEL

SEA

23h 48m

2 stops

7:15 am - 7:50 am

SEA

MEL

31h 35m

2 stops

$825Delta

Wed, May 6 - Wed, May 27

1:15 pm - 6:40 pm

SYD

SEA

22h 25m

2 stops

5:06 pm - 11:50 am

SEA

SYD

25h 44m

2 stops

$861Multiple Airlines

Tue, May 5 - Tue, May 12

1:15 pm - 6:51 pm

SYD

SEA

22h 36m

2 stops

5:58 pm - 11:50 am

SEA

SYD

24h 52m

2 stops

$900Multiple Airlines

Tue, Apr 21 - Wed, Apr 22

10:00 am - 11:59 pm

MEL

SEA

30h 59m

2 stops

5:45 pm - 7:50 am

SEA

MEL

45h 05m

2 stops

$923Delta

Fri, Apr 24 - Thu, May 7

9:20 am - 10:53 pm

SYD

SEA

30h 33m

1 stop

2:55 pm - 7:20 am

SEA

SYD

23h 25m

1 stop

$930Air Canada

Mon, Apr 20 - Tue, May 5

9:20 am - 9:38 am

SYD

SEA

17h 18m

1 stop

3:40 pm - 7:20 am

SEA

SYD

22h 40m

1 stop

$934Air Canada

Tue, Apr 21 - Wed, Apr 22

10:55 pm - 10:58 pm

PER

SEA

39h 03m

2 stops

7:06 pm - 1:35 pm

SEA

PER

27h 29m

2 stops

$1,217Qantas Airways

Mon, Apr 20 - Mon, Apr 27

5:00 pm - 10:58 pm

LST

SEA

46h 58m

2 stops

5:00 pm - 1:05 pm

SEA

LST

27h 05m

2 stops

$2,127Qantas Airways

Thu, May 14 - Mon, May 18

United Airlines flights from Australia to Seattle

Our best United Airlines deals on Australia to Seattle flight tickets

United Airlines

May 29

MEL9:30 amMelbourne

28h 40m

2 stops

SEA9:10 pmSeattle/Tacoma Intl

Jun 24

SEA2:36 pmSeattle/Tacoma Intl

23h 54m

2 stops

MEL7:30 amMelbourne

$817

United Airlines

May 29

MEL10:55 amMelbourne

22h 25m

1 stop

SEA4:20 pmSeattle/Tacoma Intl

Jun 24

SEA11:02 amSeattle/Tacoma Intl

27h 28m

2 stops

MEL7:30 amMelbourne

$820

United Airlines

May 5

MEL10:55 amMelbourne

20h 41m

1 stop

SEA2:36 pmSeattle/Tacoma Intl

May 12

SEA5:02 amSeattle/Tacoma Intl

34h 13m

2 stops

MEL8:15 amMelbourne

$821

American Airlines flights from Australia to Seattle

Our best American Airlines deals on Australia to Seattle flight tickets

American Airlines

Apr 16

SYD8:15 pmSydney Kingsford Smith

31h 26m

2 stops

SEA10:41 amSeattle/Tacoma Intl

Apr 25

SEA11:55 pmSeattle/Tacoma Intl

38h 10m

2 stops

SYD7:05 amSydney Kingsford Smith

$981

American Airlines

Jun 3

SYD9:10 amSydney Kingsford Smith

29h 39m

1 stop

SEA9:49 pmSeattle/Tacoma Intl

Jun 28

SEA2:40 pmSeattle/Tacoma Intl

23h 50m

1 stop

SYD7:30 amSydney Kingsford Smith

$984

American Airlines

Jun 3

SYD9:10 amSydney Kingsford Smith

29h 39m

1 stop

SEA9:49 pmSeattle/Tacoma Intl

Jun 28

SEA2:40 pmSeattle/Tacoma Intl

23h 50m

1 stop

SYD7:30 amSydney Kingsford Smith

$985

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 5/29

9:30 am-9:10 pm

2 stops28h 40m

Seattle/Tacoma Intl

Wed 6/24

2:36 pm-7:30 am

2 stops23h 54m

$817

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 5/29

10:55 am-4:20 pm

1 stop22h 25m

Seattle/Tacoma Intl

Wed 6/24

11:02 am-7:30 am

2 stops27h 28m

$820

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Wed 5/6

10:00 am-4:48 pm

2 stops23h 48m

Seattle/Tacoma Intl

Wed 5/27

7:15 am-7:50 am

2 stops31h 35m

$825

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 5/5

1:15 pm-6:40 pm

2 stops22h 25m

Seattle/Tacoma Intl

Tue 5/12

5:06 pm-11:50 am

2 stops25h 44m

$861

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 4/21

1:15 pm-6:51 pm

2 stops22h 36m

Seattle/Tacoma Intl

Wed 4/22

5:58 pm-11:50 am

2 stops24h 52m

$900

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 4/24

10:00 am-11:59 pm

2 stops30h 59m

Seattle/Tacoma Intl

Thu 5/7

5:45 pm-7:50 am

2 stops45h 05m

$923

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 4/20

9:20 am-10:53 pm

1 stop30h 33m

Seattle/Tacoma Intl

Tue 5/5

2:55 pm-7:20 am

1 stop23h 25m

$930

Quickest round-trip

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 4/21

9:20 am-9:38 am

1 stop17h 18m

Seattle/Tacoma Intl

Wed 4/22

3:40 pm-7:20 am

1 stop22h 40m

$934

PerthSeattle

PER - SEA

PERSEA

Perth

Mon 4/20

10:55 pm-10:58 pm

2 stops39h 03m

Seattle/Tacoma Intl

Mon 4/27

7:06 pm-1:35 pm

2 stops27h 29m

$1,217

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Thu 5/14

5:00 pm-10:58 pm

2 stops46h 58m

Seattle/Tacoma Intl

Mon 5/18

5:00 pm-1:05 pm

2 stops27h 05m

$2,127

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Australia to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Australia to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $895. If you don’t want to visit Seattle in August, then you should wait until September to fly from Australia, when ticket prices are also cheap, with an average price of $922.

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 $1,059 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Australia for as low as $884 on momondo.

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 13% on your flight if you consider stops on a Australia to Seattle flight.

Cheap Australia to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to Seattle

Fastest flight time	16h 35m
Direct flights	None

The fastest flight from Australia to Seattle takes 16h 35m

There are no direct flights from Australia to Seattle. There are no popular flight routes from Australia to Seattle.

Search flight deals

When did momondo last update prices for flights from Australia to Seattle/Tacoma Intl Airport?
Prices for flights from Australia to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Australia to Seattle/Tacoma Intl Airport?
As of March 2026, there are 3 operators available to choose from for flights from Australia to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Australia 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Australia 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 license 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.

Best airlines flying from Australia to Seattle

Compare and see reviews for airlines that fly from Australia to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $431	Free Cancellation	Rating 7.1 10,836 reviews	Search Air Canada flights
United Airlines	PriceFrom $778	Free Cancellation	Rating 7.4 9,470 reviews	Search United Airlines flights
Delta	PriceFrom $802	Free Cancellation	Rating 7.9 8,322 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Redmond

Marysville

Puyallup

Lakewood

Cle Elum

Tukwila

Federal Way

Centralia

Fife

Westport

Kirkland

Tumwater

Why use momondo?

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

It is quick and easy to find Australia to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

Yes. momondo enables you to select and highlight flights to Seattle from Australia with this policy.

How can momondo help me find flights from Australia to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Australia to Seattle.

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

Price alerts on flights to Seattle from Australia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.