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

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

Which airlines fly to Seattle?

United Airlines, Air Canada and Qantas Airways 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 15 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?

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 Brisbane (a popular airport in Australia) to Seattle (the most popular airport in Seattle), then the flight time is 16h 50m on average. If you fly from Sydney (another popular airport in Australia) to Seattle, then the average flight time is 17h 55m.

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 March 2026, there are 15 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.

$727 Cheap Flights from Australia to Seattle in 2026

1 adult

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Find the cheapest flights from Australia to Seattle

Round-trip

One-way

Last minute

Recent return flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

09:30 - 21:10

MEL

SEA

28h 40m

2 stops

14:36 - 07:30

SEA

MEL

23h 54m

2 stops

$1,186United Airlines

Fri, 29 May - Wed, 24 Jun

06:00 - 18:30

MEL

SEA

29h 30m

2 stops

19:20 - 11:25

SEA

MEL

23h 05m

2 stops

$1,273Multiple Airlines

Fri, 8 May - Fri, 12 Jun

06:00 - 10:05

MEL

SEA

21h 05m

2 stops

14:55 - 11:05

SEA

MEL

27h 10m

2 stops

$1,278Air Canada

Thu, 7 May - Fri, 15 May

06:00 - 18:30

MEL

SEA

29h 30m

2 stops

14:55 - 11:05

SEA

MEL

27h 10m

2 stops

$1,283Air Canada

Fri, 8 May - Fri, 15 May

17:50 - 22:58

SYD

SEA

22h 08m

1 stop

17:06 - 07:05

SEA

SYD

20h 59m

1 stop

$1,420Qantas Airways

Tue, 21 Apr - Wed, 6 May

15:25 - 22:52

CBR

SEA

24h 27m

2 stops

17:00 - 11:05

SEA

CBR

25h 05m

2 stops

$1,966Qantas Airways

Mon, 11 May - Mon, 18 May

07:15 - 21:06

CBR

SEA

30h 51m

2 stops

08:38 - 13:15

SEA

CBR

35h 37m

2 stops

$2,123Virgin Australia

Sun, 10 May - Sun, 17 May

07:15 - 21:06

CBR

SEA

30h 51m

2 stops

08:38 - 10:40

SEA

CBR

33h 02m

2 stops

$2,210Virgin Australia

Fri, 8 May - Fri, 15 May

16:45 - 08:45

LST

SEA

57h 00m

2 stops

10:15 - 16:05

SEA

LST

36h 50m

2 stops

$2,416Singapore Airlines

Wed, 2 Sep - Sat, 5 Sep

16:45 - 08:45

LST

SEA

57h 00m

2 stops

10:15 - 16:05

SEA

LST

36h 50m

2 stops

$2,426Singapore Airlines

Wed, 2 Sep - Sat, 5 Sep

United Airlines flights from Australia to Seattle

Our best United Airlines deals on Australia to Seattle flight tickets

United Airlines

29 May

MEL09:30Melbourne

28h 40m

2 stops

SEA21:10Seattle/Tacoma Intl

24 June

SEA14:36Seattle/Tacoma Intl

23h 54m

2 stops

MEL07:30Melbourne

$1,186

United Airlines

8 May

MEL09:30Melbourne

19h 07m

1 stop

SEA11:37Seattle/Tacoma Intl

15 May

SEA13:21Seattle/Tacoma Intl

25h 54m

1 stop

MEL08:15Melbourne

$1,311

United Airlines

29 May

MEL10:55Melbourne

22h 25m

1 stop

SEA16:20Seattle/Tacoma Intl

24 June

SEA10:29Seattle/Tacoma Intl

28h 46m

1 stop

MEL08:15Melbourne

$1,320

Delta flights from Australia to Seattle

Our best Delta deals on Australia to Seattle flight tickets

Delta

10 May

MEL10:00Melbourne

23h 44m

2 stops

SEA16:44Seattle/Tacoma Intl

17 May

SEA13:25Seattle/Tacoma Intl

49h 25m

2 stops

MEL07:50Melbourne

$1,330

Delta

24 Apr

MEL10:00Melbourne

30h 59m

2 stops

SEA23:59Seattle/Tacoma Intl

7 May

SEA17:45Seattle/Tacoma Intl

45h 05m

2 stops

MEL07:50Melbourne

$1,340

Delta

29 May

MEL10:00Melbourne

19h 23m

1 stop

SEA12:23Seattle/Tacoma Intl

24 June

SEA10:05Seattle/Tacoma Intl

28h 45m

1 stop

MEL07:50Melbourne

$1,344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

09:30-21:10

2 stops28h 40m

Seattle/Tacoma Intl

Wed 24/6

14:36-07:30

2 stops23h 54m

$1,186

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 8/5

06:00-18:30

2 stops29h 30m

Seattle/Tacoma Intl

Fri 12/6

19:20-11:25

2 stops23h 05m

$1,273

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 7/5

06:00-10:05

2 stops21h 05m

Seattle/Tacoma Intl

Fri 15/5

14:55-11:05

2 stops27h 10m

$1,278

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 8/5

06:00-18:30

2 stops29h 30m

Seattle/Tacoma Intl

Fri 15/5

14:55-11:05

2 stops27h 10m

$1,283

Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 21/4

17:50-22:58

1 stop22h 08m

Seattle/Tacoma Intl

Wed 6/5

17:06-07:05

1 stop20h 59m

$1,420

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Mon 11/5

15:25-22:52

2 stops24h 27m

Seattle/Tacoma Intl

Mon 18/5

17:00-11:05

2 stops25h 05m

$1,966

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Sun 10/5

07:15-21:06

2 stops30h 51m

Seattle/Tacoma Intl

Sun 17/5

08:38-13:15

2 stops35h 37m

$2,123

CanberraSeattle

CBR - SEA

CBRSEA

Canberra

Fri 8/5

07:15-21:06

2 stops30h 51m

Seattle/Tacoma Intl

Fri 15/5

08:38-10:40

2 stops33h 02m

$2,210

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Wed 2/9

16:45-08:45

2 stops57h 00m

Seattle/Tacoma Intl

Sat 5/9

10:15-16:05

2 stops36h 50m

$2,416

LauncestonSeattle

LST - SEA

LSTSEA

Launceston

Wed 2/9

16:45-08:45

2 stops57h 00m

Seattle/Tacoma Intl

Sat 5/9

10:15-16:05

2 stops36h 50m

$2,426

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 $1,299. 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 $1,339.

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 $1,538 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 $1,283 on momondo.

Can stopping save me money on Australia to Seattle flights?

You could potentially save up to 28% 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 50m
Direct flights	None

The fastest flight from Australia to Seattle takes 16h 50m

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 March 2026, there are 15 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
Delta	PriceFrom $705	Free cancellation	Rating 7.9 8,357 reviews	Search Delta flights
Air Canada	PriceFrom $970	Free cancellation	Rating 7.1 10,853 reviews	Search Air Canada flights
United Airlines	PriceFrom $974	Free cancellation	Rating 7.4 9,500 reviews	Search United Airlines flights
American Airlines	PriceFrom $982	Free cancellation	Rating 7.1 11,520 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $991	Free cancellation	Rating 8.0 621 reviews	Search Air New Zealand flights
Virgin Australia	PriceFrom $1,091	Free cancellation	Rating 7.6 449 reviews	Search Virgin Australia flights
Qantas Airways	PriceFrom $1,093	Free cancellation	Rating 7.5 1,013 reviews	Search Qantas Airways flights
Alaska Airlines	PriceFrom $1,137	Free cancellation	Rating 7.9 12,134 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $1,177	Free cancellation	Rating 7.8 2,839 reviews	Search Hawaiian Airlines flights
EVA Air	PriceFrom $1,292	Free cancellation	Rating 8.5 1,389 reviews	Search EVA Air flights

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Why use momondo?

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 $727

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 15/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Recent return flight deals from Australia to Seattle

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United Airlines flights from Australia to Seattle

Our best United Airlines deals on Australia to Seattle flight tickets

Delta flights from Australia to Seattle

Our best Delta deals on Australia to Seattle flight tickets

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See travel insights to Seattle from

How to get the cheapest flight ticket from Australia to Seattle

What is the cheapest month to fly to Seattle?

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

Can stopping save me money on Australia to Seattle flights?

What is the cheapest airline that flies 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

Fastest flight time

Direct flights

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?

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

Fly your favourite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

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