Which stopover airport offers the lowest fares from Sydney to Seattle?

Flights via Los Angeles (LAX) offer the lowest average return price of $1,291.

Which airlines fly to Seattle?

Air Canada, United Airlines and Qantas Airways are the top three most popular airlines that fly to Seattle from Sydney according to our data. Air Canada is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 11 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which stopover airport has the shortest travel time from Sydney to Seattle?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 17h 06m.

Which airport is the most popular for stopovers for flights between Sydney and Seattle?

Vancouver (YVR) was the most common stop: 51% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport has the shortest connection time from Sydney to Seattle?

Honolulu (HNL) has the shortest average stopover time for this route: 1h 45m.

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

Prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport refresh daily.

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

The number of operators available for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport is 11 as of February 2026.

How old do you have to be to fly from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport 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.

$637 Cheap Flights from Sydney to Seattle in 2026

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14:00 - 18:57

SYD

SEA

23h 57m

2 stops

14:53 - 22:05

SEA

SYD

37h 12m

2 stops

$1,196Multiple Airlines

Tue, 3 Mar - Wed, 18 Mar

14:00 - 23:40

SYD

SEA

27h 40m

2 stops

17:59 - 13:50

SEA

SYD

25h 51m

2 stops

$1,291Multiple Airlines

Fri, 20 Mar - Fri, 27 Mar

14:00 - 23:40

SYD

SEA

27h 40m

2 stops

17:59 - 12:45

SEA

SYD

24h 46m

2 stops

$1,296Multiple Airlines

Fri, 20 Mar - Fri, 27 Mar

21:40 - 21:29

SYD

SEA

18h 49m

1 stop

19:22 - 19:45

SEA

SYD

30h 23m

1 stop

$1,321Multiple Airlines

Tue, 3 Mar - Wed, 18 Mar

14:00 - 18:51

SYD

SEA

22h 51m

2 stops

10:42 - 07:30

SEA

SYD

27h 48m

1 stop

$1,322Multiple Airlines

Wed, 18 Mar - Fri, 17 Apr

11:20 - 17:52

SYD

SEA

24h 32m

2 stops

15:00 - 09:00

SEA

SYD

24h 00m

2 stops

$1,337American Airlines

Tue, 10 Mar - Sun, 22 Mar

11:20 - 22:48

SYD

SEA

30h 28m

1 stop

15:00 - 09:00

SEA

SYD

24h 00m

2 stops

$1,340American Airlines

Mon, 2 Mar - Tue, 17 Mar

09:10 - 13:45

SYD

SEA

21h 35m

1 stop

07:00 - 07:30

SEA

SYD

31h 30m

1 stop

$1,347American Airlines

Mon, 13 Jul - Tue, 28 Jul

13:15 - 18:40

SYD

SEA

22h 25m

2 stops

10:42 - 07:30

SEA

SYD

27h 48m

1 stop

$1,351Multiple Airlines

Thu, 23 Apr - Fri, 1 May

09:30 - 21:10

SYD

SEA

28h 40m

2 stops

17:00 - 07:00

SEA

SYD

21h 00m

1 stop

$1,363United Airlines

Wed, 3 Jun - Sun, 28 Jun

United Airlines flights from Sydney to Seattle

Our best United Airlines deals on Sydney to Seattle flight tickets

United Airlines

3 June

SYD09:30Sydney Kingsford Smith

28h 40m

2 stops

SEA21:10Seattle/Tacoma Intl

28 June

SEA17:00Seattle/Tacoma Intl

21h 00m

1 stop

SYD07:00Sydney Kingsford Smith

$1,363

United Airlines

20 Apr

SYD10:20Sydney Kingsford Smith

21h 26m

1 stop

SEA14:46Seattle/Tacoma Intl

30 Apr

SEA18:58Seattle/Tacoma Intl

19h 02m

1 stop

SYD07:00Sydney Kingsford Smith

$1,437

United Airlines

20 July

SYD09:30Sydney Kingsford Smith

25h 14m

2 stops

SEA17:44Seattle/Tacoma Intl

10 Aug

SEA19:32Seattle/Tacoma Intl

18h 23m

1 stop

SYD06:55Sydney Kingsford Smith

$1,446

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets

American Airlines

20 Apr

SYD09:10Sydney Kingsford Smith

30h 48m

1 stop

SEA22:58Seattle/Tacoma Intl

28 Apr

SEA10:00Seattle/Tacoma Intl

28h 05m

1 stop

SYD07:05Sydney Kingsford Smith

$1,337

American Airlines

2 Mar

SYD11:20Sydney Kingsford Smith

26h 38m

1 stop

SEA18:58Seattle/Tacoma Intl

17 Mar

SEA19:24Seattle/Tacoma Intl

19h 36m

1 stop

SYD09:00Sydney Kingsford Smith

$1,340

American Airlines

23 Apr

SYD09:10Sydney Kingsford Smith

25h 57m

1 stop

SEA18:07Seattle/Tacoma Intl

27 Apr

SEA23:55Seattle/Tacoma Intl

38h 00m

1 stop

SYD06:55Sydney Kingsford Smith

$1,347

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 3/3

14:00-18:57

2 stops23h 57m

Seattle/Tacoma Intl

Wed 18/3

14:53-22:05

2 stops37h 12m

$1,196

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 20/3

14:00-23:40

2 stops27h 40m

Seattle/Tacoma Intl

Fri 27/3

17:59-13:50

2 stops25h 51m

$1,291

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 20/3

14:00-23:40

2 stops27h 40m

Seattle/Tacoma Intl

Fri 27/3

17:59-12:45

2 stops24h 46m

$1,296

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 3/3

21:40-21:29

1 stop18h 49m

Seattle/Tacoma Intl

Wed 18/3

19:22-19:45

1 stop30h 23m

$1,321

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 18/3

14:00-18:51

2 stops22h 51m

Seattle/Tacoma Intl

Fri 17/4

10:42-07:30

1 stop27h 48m

$1,322

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 10/3

11:20-17:52

2 stops24h 32m

Seattle/Tacoma Intl

Sun 22/3

15:00-09:00

2 stops24h 00m

$1,337

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 2/3

11:20-22:48

1 stop30h 28m

Seattle/Tacoma Intl

Tue 17/3

15:00-09:00

2 stops24h 00m

$1,340

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 13/7

09:10-13:45

1 stop21h 35m

Seattle/Tacoma Intl

Tue 28/7

07:00-07:30

1 stop31h 30m

$1,347

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 23/4

13:15-18:40

2 stops22h 25m

Seattle/Tacoma Intl

Fri 1/5

10:42-07:30

1 stop27h 48m

$1,351

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

09:30-21:10

2 stops28h 40m

Seattle/Tacoma Intl

Sun 28/6

17:00-07:00

1 stop21h 00m

$1,363

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 Sydney 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

Stopovers

What is the cheapest month to fly to Seattle?

The month of August is, on average, the cheapest month to fly to Seattle from Sydney, with most prices found around $1,301. If you are unable to visit Seattle during the month of August, then departing from Sydney during the month September is also very affordable. Most momondo users find prices during this month for around $1,364.

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

You are more likely to see cheaper flights to Seattle from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,550 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 Sydney for as low as $1,308 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 1% on your flight if you consider stops on a Sydney to Seattle flight.

How have Sydney to Seattle flight prices changed over time?

As of February 2026, prices for Sydney to Seattle flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Sydney to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Sydney to Seattle (SYD to SEA) flight deals and tips

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

Fastest flight time	19h 05m
Direct flights	None

The fastest flight from Sydney to Seattle takes 19h 05m

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

Search flight deals

How far is Sydney Kingsford Smith to Seattle/Tacoma Intl by plane?
There are 12462.2 km between Sydney Kingsford Smith and Seattle/Tacoma Intl. A reasonable flight in good conditions will take 19h 05m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport is 11 as of February 2026.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport 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.
What is the most popular airline from Sydney to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sydney to Seattle is Air Canada (32% of total bookings). The next most popular airlines are United Airlines (26%), Qantas Airways (14%), and Hawaiian Airlines (13%).

Best airlines flying from Sydney to Seattle

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

Airline	Rating	Free cancellation	Price
Delta	PriceFrom $698	Free cancellation	Rating 7.9 8,138 reviews	Search Delta flights
Virgin Australia	PriceFrom $1,081	Free cancellation	Rating 7.6 433 reviews	Search Virgin Australia flights
Air Canada	PriceFrom $1,100	Free cancellation	Rating 7.1 10,680 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $1,126	Free cancellation	Rating 8.0 11,833 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $1,142	Free cancellation	Rating 7.4 9,234 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $1,178	Free cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Qantas Airways	PriceFrom $1,192	Free cancellation	Rating 7.5 985 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,217	Free cancellation	Rating 7.2 11,217 reviews	Search American Airlines flights
Philippine Airlines	PriceFrom $1,229	Free cancellation	Rating 7.3 955 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $1,396	Free cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights

Leavenworth

SeaTac

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from Sydney which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sydney 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 Sydney to Seattle.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Sydney and alert you when they 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.

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Cheap flights from Sydney to Seattle from $637

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Seattle departing on 26/4. 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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Big names, great deals

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Filter for what you want

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Find the cheapest flights from Sydney to Seattle

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United Airlines flights from Sydney to Seattle

Our best United Airlines deals on Sydney to Seattle flight tickets

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Sydney 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 Sydney to Seattle flights?

You could potentially save up to 1% on your flight if you consider stops on a Sydney to Seattle flight.

How have Sydney to Seattle flight prices changed over time?

As of February 2026, prices for Sydney to Seattle flights are approximately 14% more expensive when compared to flights at the same time last year.

Which airlines fly to Seattle?

Which airport is the most popular for stopovers for flights between Sydney and Seattle?

Vancouver (YVR) was the most common stop: 51% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from Sydney to Seattle?

Flights via Los Angeles (LAX) offer the lowest average return price of $1,291.

Which stopover airport has the shortest travel time from Sydney to Seattle?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 17h 06m.

Which stopover airport has the shortest connection time from Sydney to Seattle?

Honolulu (HNL) has the shortest average stopover time for this route: 1h 45m.

When to book flights from Sydney to Seattle

Cheap Sydney to Seattle (SYD to SEA) flight deals and tips

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

Fastest flight time

Direct flights

How far is Sydney Kingsford Smith to Seattle/Tacoma Intl by plane?

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

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

How old do you have to be to fly from Sydney Kingsford Smith Airport to Seattle/Tacoma Intl Airport?

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

What is the most popular airline from Sydney to Seattle?

Best airlines flying from Sydney to Seattle

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

Travelling to a place near Seattle?

Why use momondo?

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

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

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

I’m not ready to book a flight from Sydney 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

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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Popular flights according to clicks in the last 7 days on momondo

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