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

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

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 46% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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 Sydney to Seattle takes 17h 35m on average. On the other hand, flying from Brisbane to Seattle takes 17h 50m 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.

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 September 2025, there are 5 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.

$465 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

10:20 am - 9:21 amSYD-SEA

17h 01m1 stop

3:40 pm - 8:35 amSEA-SYD

22h 55m1 stop

$763Air Canada

Find Deal

Fri, Oct 17 - Sun, Oct 26

10:20 am - 9:21 amSYD-SEA

17h 01m1 stop

8:00 pm - 2:40 pmSEA-SYD

24h 40m2 stops

$776Multiple Airlines

Find Deal

Fri, Oct 17 - Sun, Oct 26

9:40 pm - 11:59 pmSYD-SEA

20h 19m1 stop

7:44 am - 7:45 pmSEA-SYD

18h 01m1 stop

$809Hawaiian Airlines

Find Deal

Thu, Oct 16 - Fri, Oct 17

10:40 am - 5:32 pmBNE-SEA

23h 52m2 stops

5:00 pm - 8:20 amSEA-BNE

45h 20m2 stops

$810Delta

Find Deal

Sun, Nov 2 - Sun, Nov 9

9:40 pm - 8:15 pmSYD-SEA

17h 35m1 stop

7:20 am - 7:45 pmSEA-SYD

17h 25m1 stop

$813Hawaiian Airlines

Find Deal

Mon, Jan 26 - Thu, Feb 19

10:40 am - 5:00 pmBNE-SEA

24h 20m2 stops

11:25 am - 8:20 amSEA-BNE

26h 55m2 stops

$815Delta

Find Deal

Fri, Feb 13 - Fri, Feb 20

12:00 pm - 11:15 pmMEL-SEA

29h 15m1 stop

12:41 pm - 9:30 amSEA-MEL

25h 49m1 stop

$839United Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

11:20 am - 12:02 pmSYD-SEA

18h 42m1 stop

5:07 pm - 9:05 amSEA-SYD

21h 58m1 stop

$841United Airlines

Find Deal

Fri, Oct 10 - Sun, Oct 26

5:40 am - 7:10 amPER-SEA

64h 30m1 stop

8:45 am - 5:25 amSEA-PER

28h 40m1 stop

$1,227Singapore Airlines

Find Deal

Sun, Nov 2 - Sun, Nov 9

6:05 pm - 8:45 amBNE-SEA

31h 40m1 stop

10:15 am - 7:15 amSEA-BNE

28h 00m1 stop

$1,259Singapore Airlines

Find Deal

Sat, Oct 18 - Sat, Oct 25

Delta flights from Australia to Seattle

Our best Delta deals on Australia to Seattle flight tickets

Delta

Nov 2

BNE10:40 amBrisbane

23h 52m

2 stops

SEA5:32 pmSeattle/Tacoma Intl

Nov 9

SEA5:00 pmSeattle/Tacoma Intl

45h 20m

2 stops

BNE8:20 amBrisbane

$810

Find similar

Delta

Feb 13

BNE10:40 amBrisbane

24h 20m

2 stops

SEA5:00 pmSeattle/Tacoma Intl

Feb 20

SEA11:25 amSeattle/Tacoma Intl

26h 55m

2 stops

BNE8:20 amBrisbane

$815

Find similar

Delta

Nov 2

SYD10:40 amSydney Kingsford Smith

24h 52m

2 stops

SEA5:32 pmSeattle/Tacoma Intl

Nov 9

SEA11:15 amSeattle/Tacoma Intl

26h 15m

2 stops

SYD8:30 amSydney Kingsford Smith

$853

Find similar

Air Canada flights from Australia to Seattle

Our best Air Canada deals on Australia to Seattle flight tickets

Air Canada

Oct 17

SYD10:20 amSydney Kingsford Smith

17h 01m

1 stop

SEA9:21 amSeattle/Tacoma Intl

Oct 26

SEA3:40 pmSeattle/Tacoma Intl

22h 55m

1 stop

SYD8:35 amSydney Kingsford Smith

$763

Find similar

Air Canada

Oct 10

SYD7:30 amSydney Kingsford Smith

19h 51m

2 stops

SEA9:21 amSeattle/Tacoma Intl

Oct 26

SEA5:50 amSeattle/Tacoma Intl

32h 45m

1 stop

SYD8:35 amSydney Kingsford Smith

$791

Find similar

Air Canada

Oct 10

SYD7:30 amSydney Kingsford Smith

19h 51m

2 stops

SEA9:21 amSeattle/Tacoma Intl

Oct 26

SEA10:05 amSeattle/Tacoma Intl

32h 35m

2 stops

SYD12:40 pmSydney Kingsford Smith

$811

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 10/17

10:20 am-9:21 am

1 stop17h 01m

Seattle/Tacoma Intl

Sun 10/26

3:40 pm-8:35 am

1 stop22h 55m

$763

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 10/17

10:20 am-9:21 am

1 stop17h 01m

Seattle/Tacoma Intl

Sun 10/26

8:00 pm-2:40 pm

2 stops24h 40m

$776

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 10/16

9:40 pm-11:59 pm

1 stop20h 19m

Seattle/Tacoma Intl

Fri 10/17

7:44 am-7:45 pm

1 stop18h 01m

$809

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 11/2

10:40 am-5:32 pm

2 stops23h 52m

Seattle/Tacoma Intl

Sun 11/9

5:00 pm-8:20 am

2 stops45h 20m

$810

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 1/26

9:40 pm-8:15 pm

1 stop17h 35m

Seattle/Tacoma Intl

Thu 2/19

7:20 am-7:45 pm

1 stop17h 25m

$813

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Fri 2/13

10:40 am-5:00 pm

2 stops24h 20m

Seattle/Tacoma Intl

Fri 2/20

11:25 am-8:20 am

2 stops26h 55m

$815

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 10/31

12:00 pm-11:15 pm

1 stop29h 15m

Seattle/Tacoma Intl

Fri 11/7

12:41 pm-9:30 am

1 stop25h 49m

$839

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 10/10

11:20 am-12:02 pm

1 stop18h 42m

Seattle/Tacoma Intl

Sun 10/26

5:07 pm-9:05 am

1 stop21h 58m

$841

PerthSeattle

PER - SEA

PERSEA

Perth

Sun 11/2

5:40 am-7:10 am

1 stop64h 30m

Seattle/Tacoma Intl

Sun 11/9

8:45 am-5:25 am

1 stop28h 40m

$1,227

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sat 10/18

6:05 pm-8:45 am

1 stop31h 40m

Seattle/Tacoma Intl

Sat 10/25

10:15 am-7:15 am

1 stop28h 00m

$1,259

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 $942. If you don’t want to visit Seattle in August, then you should wait until February to fly from Australia, when ticket prices are also cheap, with an average price of $987.

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 $1,106 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 19% 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 September 2025, there are 5 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 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom $794	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Delta	PriceFrom $802	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $917	Free Cancellation	Rating 7.8 2,732 reviews	Search Hawaiian Airlines flights
Singapore Airlines	PriceFrom $1,070	Free Cancellation	Rating 8.1 1,369 reviews	Search Singapore Airlines flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

Redmond

Westport

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.