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

Honolulu (HNL) has the shortest average stopover time for this route: 1h 48m.

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 48% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

Vancouver (YVR) was the most common stop: 53% of momondo users choosing one-stop flights on this route connected there.

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

Flights connecting via Nadi (NAN) have the shortest average one-way travel time: 16h 50m.

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

Flights via Nadi (NAN) offer the lowest average return price of $1,015.

What is the cheapest airline that flies from Sydney Kingsford Smith to Seattle/Tacoma Intl?

United Airlines and Delta are the most popular carriers operating from Sydney Kingsford Smith to Seattle/Tacoma Intl

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 7 as of November 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.

$680 Cheap Flights from Sydney to Seattle in 2026/27

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Find the cheapest flights from Sydney to Seattle

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13:20 - 18:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 12m1 stop San Francisco

13:17 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 03m1 stop San Francisco

$1,355United Airlines

Thu, 21 Jan - Sun, 31 Jan

11:20 - 11:42SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 22m1 stop Los Angeles

13:17 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 03m1 stop San Francisco

$1,355United Airlines

Wed, 20 Jan - Sun, 31 Jan

11:20 - 11:22SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 02m1 stop Los Angeles

08:45 - 08:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 20m2 stops San Francisco Los Angeles

$1,381American Airlines

Wed, 10 Mar - Tue, 30 Mar

11:20 - 16:29SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 09m2 stops Los Angeles San Francisco

16:12 - 08:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 53m1 stop Los Angeles

$1,381American Airlines

Mon, 8 Mar - Tue, 30 Mar

10:40 - 12:59SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m1 stop Los Angeles

14:40 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 50m1 stop Los Angeles

$1,387Delta

Wed, 20 Jan - Sun, 31 Jan

10:40 - 14:26SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 46m1 stop Los Angeles

09:25 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 05m2 stops Salt Lake City Los Angeles

$1,387Delta

Wed, 20 Jan - Sun, 31 Jan

11:10 - 16:47SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 37m1 stop Los Angeles

13:20 - 06:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 05m1 stop San Francisco

$1,403Qantas Airways

Wed, 27 Jan - Wed, 3 Feb

21:40 - 23:59SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m1 stop Honolulu

07:00 - 19:45SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

$1,446Multiple Airlines

Fri, 20 Nov - Fri, 27 Nov

21:40 - 21:36SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 56m2 stops Honolulu Kahului

07:00 - 19:45SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

$1,520Multiple Airlines

Thu, 4 Feb - Mon, 8 Feb

21:25 - 09:15SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 50m1 stop San Francisco

14:22 - 06:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles

$1,546Qantas Airways

Fri, 29 Jan - Fri, 5 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:40 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 25m1 stop Los Angeles

17:52 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 38m1 stop Los Angeles

$1,387Delta

Mon, 9 Nov - Sun, 22 Nov

10:40 - 14:55SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 15m2 stops Los Angeles Salt Lake City

07:15 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 15m1 stop Los Angeles

$1,387Delta

Mon, 9 Nov - Sun, 22 Nov

11:50 - 14:39SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 49m1 stop San Francisco

16:39 - 09:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 26m1 stop Los Angeles

$1,400Lufthansa

Mon, 9 Nov - Sun, 22 Nov

11:10 - 13:00SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 50m1 stop Los Angeles

16:45 - 10:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 35m2 stops Los Angeles Brisbane

$1,731Qantas Airways

Mon, 9 Nov - Sun, 22 Nov

14:05 - 22:11SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 06m1 stop Dallas/Fort Worth

09:46 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 14m2 stops San Francisco Los Angeles

$1,732American Airlines

Mon, 9 Nov - Sun, 22 Nov

20:30 - 21:20SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 50m2 stops Honolulu Los Angeles

09:46 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 14m2 stops San Francisco Los Angeles

$1,732American Airlines

Mon, 9 Nov - Sun, 22 Nov

14:00 - 19:28SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 28m2 stops Nadi Los Angeles

16:45 - 12:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 50m2 stops Los Angeles Nadi

$1,882Multiple Airlines

Mon, 9 Nov - Sun, 22 Nov

11:20 - 18:22SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 02m1 stop Vancouver Intl

10:10 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m1 stop Vancouver Intl

$16,847Air Canada

Fri, 13 Nov - Thu, 19 Nov

11:50 - 12:20SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 30m1 stop San Francisco

09:05 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 15m1 stop San Francisco

$20,329Virgin Australia

Thu, 12 Nov - Fri, 20 Nov

11:10 - 16:00SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 50m1 stop Los Angeles

18:03 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 57m1 stop Los Angeles

$23,671Qantas Airways

Sat, 14 Nov - Fri, 27 Nov

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United Airlines flights from Sydney to Seattle

Our best United Airlines deals on Sydney to Seattle flight tickets

United Airlines

20 Jan

SYD11:20Sydney Kingsford Smith

19h 22m

1 stop

SEA11:42Seattle/Tacoma Intl

31 Jan

SEA13:17Seattle/Tacoma Intl

25h 03m

1 stop

SYD09:20Sydney Kingsford Smith

$1,355

United Airlines

3 Dec

SYD11:50Sydney Kingsford Smith

25h 34m

2 stops

SEA18:24Seattle/Tacoma Intl

25 Jan

SEA19:28Seattle/Tacoma Intl

18h 52m

1 stop

SYD09:20Sydney Kingsford Smith

$1,409

United Airlines

3 Dec

SYD11:50Sydney Kingsford Smith

19h 30m

1 stop

SEA12:20Seattle/Tacoma Intl

25 Jan

SEA05:00Seattle/Tacoma Intl

30h 20m

1 stop

SYD06:20Sydney Kingsford Smith

$1,413

Alaska Airlines flights from Sydney to Seattle

Our best Alaska Airlines deals on Sydney to Seattle flight tickets

Alaska Airlines

22 Apr

SYD20:45Sydney Kingsford Smith

26h 15m

1 stop

SEA06:00Seattle/Tacoma Intl

13 May

SEA08:05Seattle/Tacoma Intl

17h 45m

1 stop

SYD18:50Sydney Kingsford Smith

$1,526

Alaska Airlines

20 Apr

SYD20:45Sydney Kingsford Smith

26h 15m

1 stop

SEA06:00Seattle/Tacoma Intl

15 May

SEA08:05Seattle/Tacoma Intl

17h 45m

1 stop

SYD18:50Sydney Kingsford Smith

$1,617

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 21/1

13:20-18:32

1 stop24h 12m

Seattle/Tacoma Intl

Sun 31/1

13:17-09:20

1 stop25h 03m

$1,355

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

11:20-11:42

1 stop19h 22m

Seattle/Tacoma Intl

Sun 31/1

13:17-09:20

1 stop25h 03m

$1,355

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 10/3

11:20-11:22

1 stop19h 02m

Seattle/Tacoma Intl

Tue 30/3

08:45-08:05

2 stops29h 20m

$1,381

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 8/3

11:20-16:29

2 stops24h 09m

Seattle/Tacoma Intl

Tue 30/3

16:12-08:05

1 stop21h 53m

$1,381

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

10:40-12:59

1 stop21h 19m

Seattle/Tacoma Intl

Sun 31/1

14:40-08:30

1 stop22h 50m

$1,387

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

10:40-14:26

1 stop22h 46m

Seattle/Tacoma Intl

Sun 31/1

09:25-08:30

2 stops28h 05m

$1,387

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 27/1

11:10-16:47

1 stop24h 37m

Seattle/Tacoma Intl

Wed 3/2

13:20-06:25

1 stop22h 05m

$1,403

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

21:40-23:59

1 stop21h 19m

Seattle/Tacoma Intl

Fri 27/11

07:00-19:45

1 stop17h 45m

$1,446

Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 4/2

21:40-21:36

2 stops18h 56m

Seattle/Tacoma Intl

Mon 8/2

07:00-19:45

1 stop17h 45m

$1,520

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 29/1

21:25-09:15

1 stop30h 50m

Seattle/Tacoma Intl

Fri 5/2

14:22-06:25

1 stop21h 03m

$1,546

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 typical price of a round-trip flight between Sydney and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,317 to $1,495.
The lowest price recently found on this route was $1,342.

What is the cheapest month to fly to Seattle?

The month of November is, on average, the cheapest month to fly to Seattle from Sydney, with most prices found around $1,361. If you are unable to visit Seattle during the month of November, then departing from Sydney during the month August is also very affordable. Most momondo users find prices during this month for around $1,459.

How far in advance should I book a flight from Sydney 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 $1,622 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 $1,460 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 9% 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 November 2026, prices for Sydney to Seattle flights are approximately 4% cheaper 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

Best price found	$680
Fastest flight time	18h 45m
Direct flights	None

The best one-way flight to Seattle from Sydney in the past 72 hours is $680. The best return flight deal from Sydney to Seattle found on momondo in the last 72 hours is $1,355.

The fastest flight from Sydney to Seattle takes 18h 45m

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

Search flight deals

Frequently asked questions about flying from Sydney to Seattle

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 18h 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 7 as of November 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 (42% of total bookings). The next most popular airlines are United Airlines (27%), Qantas Airways (10%), and American Airlines (9%).

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
Virgin Australia	PriceFrom $943	Free cancellation	Rating 7.6 484 reviews	Search Virgin Australia flights
Delta	PriceFrom $1,002	Free cancellation	Rating 7.8 8,699 reviews	Search Delta flights
United Airlines	PriceFrom $1,079	Free cancellation	Rating 7.3 10,470 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,212	Free cancellation	Rating 7.1 11,876 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,283	Free cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $1,303	Free cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
Hawaiian Airlines	PriceFrom $1,582	Free cancellation	Rating 7.8 2,803 reviews	Search Hawaiian Airlines flights

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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Airports servicing Washington

Spokane Airport

Cheap flights from Sydney to Seattle from $680

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 27/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Sydney to Seattle

Our best United Airlines deals on Sydney to Seattle flight tickets

Alaska Airlines flights from Sydney to Seattle

Our best Alaska Airlines deals on Sydney to Seattle flight tickets

momondo Fare Finder

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 typical price of a round-trip flight between Sydney and Seattle?

What is the cheapest month to fly to Seattle?

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

Can stopping save me money on Sydney to Seattle flights?

How have Sydney to Seattle flight prices changed over time?

What is the cheapest airline that flies from Sydney Kingsford Smith to Seattle/Tacoma Intl?

Which airlines fly to Seattle?

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

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

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

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

When to book flights from Sydney to Seattle

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying 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?

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.

Popular Cities in the United States

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

Fly to other destinations from Sydney

According to popular flight searches on momondo this year

Complete your trip to Seattle

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According to popular flight searches on momondo this year