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

Qantas Airways, United Airlines, and American Airlines are the most popular carriers operating from Australia to Seattle/Tacoma Intl

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 18h 21m on average. On the other hand, flying from Sydney to Seattle takes 18h 43m 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 49% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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 November 2025, there are 4 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.

$464 Cheap Flights from Australia to Seattle in 2025/26

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Find the cheapest flights from Australia to Seattle

Round-trip

One-way

Last minute

Recent round-trip flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

11:20 am - 10:06 pmSYD-SEA

29h 46m1 stop

10:05 am - 6:55 amSEA-SYD

25h 50m1 stop

$769Air Canada

Find Deal

Tue, Dec 2 - Tue, Dec 9

12:00 pm - 5:49 pmMEL-SEA

24h 49m1 stop

7:51 am - 5:00 amSEA-MEL

27h 09m1 stop

$783American Airlines

Find Deal

Sun, Mar 8 - Sat, Mar 28

7:00 am - 9:33 amSYD-SEA

19h 33m2 stops

5:40 am - 7:20 amSEA-SYD

32h 40m1 stop

$784Air Canada

Find Deal

Thu, Apr 30 - Thu, May 7

12:10 pm - 2:24 pmBNE-SEA

20h 14m1 stop

6:00 am - 5:45 amSEA-BNE

29h 45m1 stop

$789Qantas Airways

Find Deal

Tue, Dec 9 - Tue, Dec 30

7:40 pm - 9:01 pmBNE-SEA

18h 21m1 stop

6:10 am - 5:00 amSEA-BNE

29h 50m1 stop

$790Qantas Airways

Find Deal

Wed, Mar 11 - Sun, Mar 15

11:30 am - 4:29 pmMEL-SEA

23h 59m1 stop

10:58 am - 9:30 amSEA-MEL

27h 32m2 stops

$793United Airlines

Find Deal

Sat, Jan 17 - Wed, Jan 28

1:00 pm - 8:23 amMEL-SEA

38h 23m1 stop

5:02 am - 9:30 amSEA-MEL

33h 28m2 stops

$794United Airlines

Find Deal

Thu, Dec 18 - Wed, Dec 31

11:05 am - 11:25 pmBNE-SEA

30h 20m2 stops

5:59 pm - 8:20 amSEA-BNE

20h 21m1 stop

$821Delta

Find Deal

Wed, Dec 10 - Wed, Dec 24

10:40 am - 5:00 pmBNE-SEA

24h 20m1 stop

9:45 pm - 8:20 amSEA-BNE

40h 35m1 stop

$829Delta

Find Deal

Sun, Nov 16 - Thu, Nov 20

9:40 pm - 10:40 pmSYD-SEA

20h 00m1 stop

7:20 am - 7:45 pmSEA-SYD

17h 25m1 stop

$991Hawaiian Airlines

Find Deal

Thu, Feb 19 - Sat, Feb 28

Air Canada flights from Australia to Seattle

Our best Air Canada deals on Australia to Seattle flight tickets

Air Canada

Dec 2

SYD11:20 amSydney Kingsford Smith

29h 46m

1 stop

SEA10:06 pmSeattle/Tacoma Intl

Dec 9

SEA10:05 amSeattle/Tacoma Intl

25h 50m

1 stop

SYD6:55 amSydney Kingsford Smith

$769

Find similar

Air Canada

Apr 30

SYD7:00 amSydney Kingsford Smith

19h 33m

2 stops

SEA9:33 amSeattle/Tacoma Intl

May 7

SEA5:40 amSeattle/Tacoma Intl

32h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

$784

Find similar

Air Canada

Dec 2

SYD11:20 amSydney Kingsford Smith

26h 56m

1 stop

SEA7:16 pmSeattle/Tacoma Intl

Dec 17

SEA8:00 pmSeattle/Tacoma Intl

41h 10m

2 stops

SYD8:10 amSydney Kingsford Smith

$788

Find similar

Qatar Airways flights from Australia to Seattle

Our best Qatar Airways deals on Australia to Seattle flight tickets

Qatar Airways

Nov 20

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 24

SEA4:05 pmSeattle/Tacoma Intl

34h 40m

1 stop

PER6:45 pmPerth

$1,622

Find similar

Qatar Airways

Nov 13

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 26

SEA4:05 pmSeattle/Tacoma Intl

27h 50m

1 stop

PER11:55 amPerth

$1,652

Find similar

Qatar Airways

Nov 20

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 24

SEA4:05 pmSeattle/Tacoma Intl

27h 50m

1 stop

PER11:55 amPerth

$1,739

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/2

11:20 am-10:06 pm

1 stop29h 46m

Seattle/Tacoma Intl

Tue 12/9

10:05 am-6:55 am

1 stop25h 50m

$769

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 3/8

12:00 pm-5:49 pm

1 stop24h 49m

Seattle/Tacoma Intl

Sat 3/28

7:51 am-5:00 am

1 stop27h 09m

$783

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 4/30

7:00 am-9:33 am

2 stops19h 33m

Seattle/Tacoma Intl

Thu 5/7

5:40 am-7:20 am

1 stop32h 40m

$784

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Tue 12/9

12:10 pm-2:24 pm

1 stop20h 14m

Seattle/Tacoma Intl

Tue 12/30

6:00 am-5:45 am

1 stop29h 45m

$789

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Wed 3/11

7:40 pm-9:01 pm

1 stop18h 21m

Seattle/Tacoma Intl

Sun 3/15

6:10 am-5:00 am

1 stop29h 50m

$790

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 1/17

11:30 am-4:29 pm

1 stop23h 59m

Seattle/Tacoma Intl

Wed 1/28

10:58 am-9:30 am

2 stops27h 32m

$793

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 12/18

1:00 pm-8:23 am

1 stop38h 23m

Seattle/Tacoma Intl

Wed 12/31

5:02 am-9:30 am

2 stops33h 28m

$794

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Wed 12/10

11:05 am-11:25 pm

2 stops30h 20m

Seattle/Tacoma Intl

Wed 12/24

5:59 pm-8:20 am

1 stop20h 21m

$821

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 11/16

10:40 am-5:00 pm

1 stop24h 20m

Seattle/Tacoma Intl

Thu 11/20

9:45 pm-8:20 am

1 stop40h 35m

$829

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 2/19

9:40 pm-10:40 pm

1 stop20h 00m

Seattle/Tacoma Intl

Sat 2/28

7:20 am-7:45 pm

1 stop17h 25m

$991

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 $912. 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 $975.

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

On average, the least expensive day to fly to Seattle from Australia is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,069. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Australia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,337.

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

Flying to Seattle from Australia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,213 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $1,679. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,092 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 $894 on momondo.

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 12% 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

Direct flights	None

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 November 2025, there are 4 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 $598	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada flights
United Airlines	PriceFrom $794	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Delta	PriceFrom $802	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $917	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

Shoreline

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.