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

Vancouver (YVR) was the most common stop: 55% 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.

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 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 46% 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 stopover airport offers the lowest fares from Sydney to Seattle?

Flights via Nadi (NAN) offer the lowest average return price of $1,005.

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

United Airlines and American Airlines 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 July 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.

$889 Cheap Flights from Sydney to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Seattle

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:00 - 13:19

SYD

SEA

42h 19m

1 stop

07:10 - 07:05

SEA

SYD

30h 55m

1 stop

$1,178British Airways

Fri, 25 Sep - Sun, 27 Sep

13:15 - 19:39

SYD

SEA

23h 24m

2 stops

17:10 - 11:50

SEA

SYD

25h 40m

2 stops

$1,236Multiple Airlines

Wed, 26 Aug - Wed, 2 Sep

14:15 - 18:48

SYD

SEA

22h 33m

2 stops

12:00 - 12:35

SEA

SYD

29h 35m

2 stops

$1,254Multiple Airlines

Thu, 15 Oct - Tue, 10 Nov

14:15 - 22:57

SYD

SEA

26h 42m

2 stops

09:50 - 12:35

SEA

SYD

31h 45m

2 stops

$1,270Multiple Airlines

Thu, 22 Oct - Mon, 9 Nov

17:50 - 21:58

SYD

SEA

21h 08m

1 stop

17:02 - 07:05

SEA

SYD

21h 03m

1 stop

$1,312Qantas Airways

Mon, 20 Jul - Wed, 5 Aug

09:10 - 21:45

SYD

SEA

29h 35m

1 stop

14:07 - 06:55

SEA

SYD

23h 48m

1 stop

$1,328British Airways

Mon, 27 Jul - Wed, 12 Aug

20:45 - 21:34

SYD

SEA

18h 49m

1 stop

13:46 - 19:45

SEA

SYD

34h 59m

1 stop

$1,332Multiple Airlines

Thu, 15 Oct - Tue, 10 Nov

12:00 - 16:47

SYD

SEA

21h 47m

1 stop

07:11 - 07:05

SEA

SYD

30h 54m

1 stop

$1,341American Airlines

Mon, 20 Jul - Wed, 5 Aug

12:00 - 16:41

SYD

SEA

21h 41m

1 stop

07:11 - 07:05

SEA

SYD

30h 54m

1 stop

$1,345American Airlines

Wed, 12 Aug - Mon, 31 Aug

20:45 - 08:00

SYD

SEA

28h 15m

1 stop

07:20 - 18:50

SEA

SYD

18h 30m

1 stop

$1,349Alaska Airlines

Tue, 11 Aug - Mon, 31 Aug

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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 July

SYD09:30Sydney Kingsford Smith

30h 40m

2 stops

SEA23:10Seattle/Tacoma Intl

5 Aug

SEA19:05Seattle/Tacoma Intl

18h 50m

1 stop

SYD06:55Sydney Kingsford Smith

$1,357

United Airlines

13 July

SYD10:20Sydney Kingsford Smith

31h 55m

1 stop

SEA01:15Seattle/Tacoma Intl

28 July

SEA19:05Seattle/Tacoma Intl

18h 50m

1 stop

SYD06:55Sydney Kingsford Smith

$1,358

United Airlines

12 Aug

SYD09:30Sydney Kingsford Smith

19h 04m

1 stop

SEA11:34Seattle/Tacoma Intl

31 Aug

SEA14:34Seattle/Tacoma Intl

23h 26m

2 stops

SYD07:00Sydney Kingsford Smith

$1,361

Delta flights from Sydney to Seattle

Our best Delta deals on Sydney to Seattle flight tickets

Delta

12 Aug

SYD09:15Sydney Kingsford Smith

24h 39m

2 stops

SEA16:54Seattle/Tacoma Intl

31 Aug

SEA09:40Seattle/Tacoma Intl

28h 10m

2 stops

SYD06:50Sydney Kingsford Smith

$1,368

Delta

10 Aug

SYD09:15Sydney Kingsford Smith

24h 22m

1 stop

SEA16:37Seattle/Tacoma Intl

18 Aug

SEA17:50Seattle/Tacoma Intl

20h 00m

1 stop

SYD06:50Sydney Kingsford Smith

$1,370

Delta

13 July

SYD09:15Sydney Kingsford Smith

29h 50m

1 stop

SEA22:05Seattle/Tacoma Intl

30 July

SEA05:30Seattle/Tacoma Intl

32h 20m

2 stops

SYD06:50Sydney Kingsford Smith

$1,417

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 25/9

12:00-13:19

1 stop42h 19m

Seattle/Tacoma Intl

Sun 27/9

07:10-07:05

1 stop30h 55m

$1,178

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 26/8

13:15-19:39

2 stops23h 24m

Seattle/Tacoma Intl

Wed 2/9

17:10-11:50

2 stops25h 40m

$1,236

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 15/10

14:15-18:48

2 stops22h 33m

Seattle/Tacoma Intl

Tue 10/11

12:00-12:35

2 stops29h 35m

$1,254

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 22/10

14:15-22:57

2 stops26h 42m

Seattle/Tacoma Intl

Mon 9/11

09:50-12:35

2 stops31h 45m

$1,270

Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 20/7

17:50-21:58

1 stop21h 08m

Seattle/Tacoma Intl

Wed 5/8

17:02-07:05

1 stop21h 03m

$1,312

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 27/7

09:10-21:45

1 stop29h 35m

Seattle/Tacoma Intl

Wed 12/8

14:07-06:55

1 stop23h 48m

$1,328

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 15/10

20:45-21:34

1 stop18h 49m

Seattle/Tacoma Intl

Tue 10/11

13:46-19:45

1 stop34h 59m

$1,332

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 20/7

12:00-16:47

1 stop21h 47m

Seattle/Tacoma Intl

Wed 5/8

07:11-07:05

1 stop30h 54m

$1,341

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 12/8

12:00-16:41

1 stop21h 41m

Seattle/Tacoma Intl

Mon 31/8

07:11-07:05

1 stop30h 54m

$1,345

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 11/8

20:45-08:00

1 stop28h 15m

Seattle/Tacoma Intl

Mon 31/8

07:20-18:50

1 stop18h 30m

$1,349

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?

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 $1,244. 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 $1,355.

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 $1,521 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 $950 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 July 2026, prices for Sydney to Seattle flights are approximately 19% 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

Fastest flight time	20h 14m
Direct flights	None

The fastest flight from Sydney to Seattle takes 20h 14m

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

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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 20h 14m.
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 July 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 (43% of total bookings). The next most popular airlines are United Airlines (26%), Qantas Airways (12%), and Hawaiian Airlines (8%).

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
Hawaiian Airlines	PriceFrom $1,083	Free cancellation	Rating 7.8 2,825 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $1,093	Free cancellation	Rating 7.8 8,452 reviews	Search Delta flights
Air Canada	PriceFrom $1,112	Free cancellation	Rating 7.1 11,308 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,190	Free cancellation	Rating 7.4 9,940 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,226	Free cancellation	Rating 7.5 1,057 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,269	Free cancellation	Rating 7.1 11,782 reviews	Search American Airlines flights
ANA	PriceFrom $1,320	Free cancellation	Rating 8.3 1,263 reviews	Search ANA flights

Leavenworth

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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

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Cheap flights from Sydney to Seattle from $889

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 17/8. 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

Delta flights from Sydney to Seattle

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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

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

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.

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

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