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

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

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 Melbourne (a popular airport in Australia) to Seattle (the most popular airport in Seattle), then the flight time is 19h 45m on average. If you fly from Adelaide (another popular airport in Australia) to Seattle, then the average flight time is 19h 49m.

Which airlines fly to Seattle?

United Airlines, Air Canada and Singapore Airlines 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 41% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 16 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 refresh daily.

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

As of November 2025, there are 16 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 stopovers. 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$776 Cheap Flights from Australia to Seattle in 2025/26

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Recent return flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

12:00 - 17:28MEL-SEA

24h 28m1 stop

16:59 - 09:30SEA-MEL

21h 31m1 stop

$1,182Qantas Airways

Find Deal

Mon, 8 Dec - Mon, 15 Dec

17:10 - 09:31MEL-SEA

34h 21m2 stops

20:00 - 12:35SEA-MEL

22h 35m2 stops

$1,198Multiple Airlines

Find Deal

Tue, 10 Mar - Tue, 31 Mar

12:00 - 16:14MEL-SEA

22h 14m1 stop

05:07 - 08:15SEA-MEL

34h 08m2 stops

$1,220United Airlines

Find Deal

Tue, 24 Mar - Tue, 5 May

09:45 - 09:31BNE-SEA

16h 46m1 stop

15:40 - 07:05SEA-BNE

22h 25m1 stop

$1,228Air Canada

Find Deal

Mon, 23 Mar - Mon, 13 Apr

13:00 - 21:07MEL-SEA

27h 07m1 stop

19:12 - 10:00SEA-MEL

19h 48m1 stop

$1,239United Airlines

Find Deal

Thu, 18 Dec - Mon, 29 Dec

11:20 - 09:31SYD-SEA

17h 11m1 stop

20:00 - 06:55SEA-SYD

39h 55m1 stop

$1,242Air Canada

Find Deal

Sun, 9 Nov - Wed, 10 Dec

00:35 - 08:10MEL-SEA

25h 35m1 stop

10:15 - 18:10SEA-MEL

37h 55m1 stop

$1,537Singapore Airlines

Find Deal

Mon, 9 Mar - Tue, 31 Mar

00:35 - 08:10MEL-SEA

25h 35m1 stop

10:15 - 04:20SEA-MEL

25h 05m1 stop

$1,914Singapore Airlines

Find Deal

Mon, 23 Mar - Tue, 5 May

14:55 - 21:07ADL-SEA

24h 42m1 stop

09:25 - 22:30SEA-ADL

42h 35m2 stops

$2,817Virgin Australia

Find Deal

Sat, 20 Dec - Sun, 11 Jan

14:55 - 18:45ADL-SEA

22h 20m1 stop

06:18 - 19:10SEA-ADL

42h 22m2 stops

$2,821Virgin Australia

Find Deal

Sat, 20 Dec - Sun, 11 Jan

Qantas Airways flights from Australia to Seattle

Our best Qantas Airways deals on Australia to Seattle flight tickets

Qantas Airways

8 Dec

MEL12:00Melbourne

24h 28m

1 stop

SEA17:28Seattle/Tacoma Intl

15 Dec

SEA16:59Seattle/Tacoma Intl

21h 31m

1 stop

MEL09:30Melbourne

$1,182

Find similar

Qantas Airways

17 Nov

SYD11:20Sydney Kingsford Smith

25h 51m

1 stop

SEA18:11Seattle/Tacoma Intl

5 Dec

SEA17:59Seattle/Tacoma Intl

20h 01m

1 stop

SYD09:00Sydney Kingsford Smith

$1,346

Find similar

Qantas Airways

30 Nov

SYD17:45Sydney Kingsford Smith

21h 38m

1 stop

SEA20:23Seattle/Tacoma Intl

15 Dec

SEA06:25Seattle/Tacoma Intl

31h 35m

1 stop

SYD09:00Sydney Kingsford Smith

$1,419

Find similar

United Airlines flights from Australia to Seattle

Our best United Airlines deals on Australia to Seattle flight tickets

United Airlines

24 Mar

MEL12:00Melbourne

22h 14m

1 stop

SEA16:14Seattle/Tacoma Intl

5 May

SEA05:07Seattle/Tacoma Intl

34h 08m

2 stops

MEL08:15Melbourne

$1,220

Find similar

United Airlines

18 Dec

MEL13:00Melbourne

27h 07m

1 stop

SEA21:07Seattle/Tacoma Intl

29 Dec

SEA19:12Seattle/Tacoma Intl

19h 48m

1 stop

MEL10:00Melbourne

$1,239

Find similar

United Airlines

18 Dec

MEL13:00Melbourne

28h 59m

2 stops

SEA22:59Seattle/Tacoma Intl

29 Dec

SEA13:35Seattle/Tacoma Intl

25h 25m

1 stop

MEL10:00Melbourne

$1,245

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 8/12

12:00-17:28

1 stop24h 28m

Seattle/Tacoma Intl

Mon 15/12

16:59-09:30

1 stop21h 31m

$1,182

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 10/3

17:10-09:31

2 stops34h 21m

Seattle/Tacoma Intl

Tue 31/3

20:00-12:35

2 stops22h 35m

$1,198

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 24/3

12:00-16:14

1 stop22h 14m

Seattle/Tacoma Intl

Tue 5/5

05:07-08:15

2 stops34h 08m

$1,220

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Mon 23/3

09:45-09:31

1 stop16h 46m

Seattle/Tacoma Intl

Mon 13/4

15:40-07:05

1 stop22h 25m

$1,228

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 18/12

13:00-21:07

1 stop27h 07m

Seattle/Tacoma Intl

Mon 29/12

19:12-10:00

1 stop19h 48m

$1,239

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 9/11

11:20-09:31

1 stop17h 11m

Seattle/Tacoma Intl

Wed 10/12

20:00-06:55

1 stop39h 55m

$1,242

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 9/3

00:35-08:10

1 stop25h 35m

Seattle/Tacoma Intl

Tue 31/3

10:15-18:10

1 stop37h 55m

$1,537

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Mon 23/3

00:35-08:10

1 stop25h 35m

Seattle/Tacoma Intl

Tue 5/5

10:15-04:20

1 stop25h 05m

$1,914

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 20/12

14:55-21:07

1 stop24h 42m

Seattle/Tacoma Intl

Sun 11/1

09:25-22:30

2 stops42h 35m

$2,817

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 20/12

14:55-18:45

1 stop22h 20m

Seattle/Tacoma Intl

Sun 11/1

06:18-19:10

2 stops42h 22m

$2,821

Flights are sorted by cheapest return 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?

The month of August is, on average, the cheapest month to fly to Seattle from Australia, with most prices found around $1,393. 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 $1,489.

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 $1,571. 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 $1,806.

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 $1,497. 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 $1,827.

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 $1,667 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 $1,366 on momondo.

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 9% 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 refresh daily.
How many operators does momondo search for flights from Australia to Seattle/Tacoma Intl Airport?
As of November 2025, there are 16 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 stopovers. 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 New Zealand	PriceFrom $936	Free cancellation	Rating 8.0 521 reviews	Search Air New Zealand flights
American Airlines	PriceFrom $993	Free cancellation	Rating 7.2 11,037 reviews	Search American Airlines flights
Virgin Australia	PriceFrom $1,148	Free cancellation	Rating 7.6 423 reviews	Search Virgin Australia flights
Alaska Airlines	PriceFrom $1,151	Free cancellation	Rating 8.0 11,234 reviews	Search Alaska Airlines flights
Delta	PriceFrom $1,159	Free cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Air Canada	PriceFrom $1,168	Free cancellation	Rating 7.1 10,393 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,212	Free cancellation	Rating 7.5 926 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,213	Free cancellation	Rating 7.4 8,997 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $1,240	Free cancellation	Rating 7.8 2,799 reviews	Search Hawaiian Airlines flights
Philippine Airlines	PriceFrom $1,260	Free cancellation	Rating 7.3 931 reviews	Search Philippine Airlines flights

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Australia to Seattle for 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 helps you find the best flight between Australia and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Australia to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Australia to Seattle from $776

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to Seattle departing on 13/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Australia to Seattle

Recent return flight deals from Australia to Seattle

Recent one-way flight deals from Australia to Seattle

Recent last minute flight deals from Australia to Seattle

Qantas Airways flights from Australia to Seattle

Our best Qantas Airways deals on Australia to Seattle flight tickets

United Airlines flights from Australia to Seattle

Our best United Airlines deals on Australia to Seattle flight tickets

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Use the filters below to find and compare flights from Australia to Seattle that are best for you.

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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

What is the cheapest month to fly to Seattle?

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

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

How far in advance should I book a flight to Seattle?

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 9% on your flight if you consider stops on a Australia to Seattle flight.

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

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

Which airlines fly to Seattle?

How long does it take to fly to Seattle?

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

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

How many operators does momondo search 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?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

Best airlines flying from Australia to Seattle

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

Travelling to a place near Seattle?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington