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

Vancouver (YVR) was the most common stop: 54% 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 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 50% 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.

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

United Airlines is the most popular carrier operating from Sydney Kingsford Smith to Seattle/Tacoma Intl

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

Flights via Nadi (NAN) offer the lowest average return price of $992.

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 7 as of August 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.

$563 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.

09:10 - 17:34

SYD

SEA

25h 24m

2 stops

17:02 - 07:05

SEA

SYD

21h 03m

1 stop

$1,242British Airways

Thu, 10 Sep - Wed, 23 Sep

09:20 - 10:05

SYD

SEA

17h 45m

1 stop

19:15 - 07:20

SEA

SYD

19h 05m

1 stop

$1,246Air Canada

Mon, 14 Sep - Mon, 21 Sep

09:10 - 15:57

SYD

SEA

23h 47m

1 stop

12:55 - 07:05

SEA

SYD

25h 10m

1 stop

$1,249British Airways

Thu, 10 Sep - Wed, 23 Sep

09:10 - 19:39

SYD

SEA

27h 29m

1 stop

17:55 - 09:00

SEA

SYD

20h 05m

1 stop

$1,259Qantas Airways

Tue, 8 Sep - Tue, 10 Nov

10:10 - 12:16

SYD

SEA

20h 06m

1 stop

17:55 - 09:00

SEA

SYD

20h 05m

1 stop

$1,262Qantas Airways

Thu, 22 Oct - Wed, 11 Nov

11:20 - 16:00

SYD

SEA

23h 40m

1 stop

11:13 - 09:00

SEA

SYD

50h 47m

2 stops

$1,273American Airlines

Thu, 5 Nov - Mon, 9 Nov

09:10 - 22:40

SYD

SEA

30h 30m

1 stop

13:35 - 09:00

SEA

SYD

24h 25m

1 stop

$1,273American Airlines

Thu, 10 Sep - Wed, 11 Nov

10:15 - 14:50

SYD

SEA

22h 35m

2 stops

19:55 - 08:30

SEA

SYD

41h 35m

2 stops

$1,299Delta

Mon, 19 Oct - Sat, 14 Nov

09:15 - 14:50

SYD

SEA

22h 35m

1 stop

17:55 - 08:30

SEA

SYD

43h 35m

2 stops

$1,299Delta

Mon, 7 Sep - Sat, 7 Nov

11:20 - 14:37

SYD

SEA

22h 17m

1 stop

15:15 - 09:35

SEA

SYD

23h 20m

1 stop

$1,299Air Canada

Thu, 5 Nov - Mon, 9 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

24 Aug

SYD09:30Sydney Kingsford Smith

25h 12m

2 stops

SEA17:42Seattle/Tacoma Intl

8 Sept

SEA11:03Seattle/Tacoma Intl

26h 57m

2 stops

SYD07:00Sydney Kingsford Smith

$1,357

United Airlines

6 Sept

SYD09:30Sydney Kingsford Smith

25h 14m

2 stops

SEA17:44Seattle/Tacoma Intl

8 Nov

SEA19:35Seattle/Tacoma Intl

18h 45m

1 stop

SYD09:20Sydney Kingsford Smith

$1,373

United Airlines

27 Aug

SYD09:30Sydney Kingsford Smith

25h 12m

2 stops

SEA17:42Seattle/Tacoma Intl

3 Sept

SEA14:34Seattle/Tacoma Intl

23h 26m

2 stops

SYD07:00Sydney Kingsford Smith

$1,381

British Airways flights from Sydney to Seattle

Our best British Airways deals on Sydney to Seattle flight tickets

British Airways

10 Sept

SYD09:10Sydney Kingsford Smith

25h 24m

2 stops

SEA17:34Seattle/Tacoma Intl

23 Sept

SEA17:02Seattle/Tacoma Intl

21h 03m

1 stop

SYD07:05Sydney Kingsford Smith

$1,242

British Airways

10 Sept

SYD09:10Sydney Kingsford Smith

23h 47m

1 stop

SEA15:57Seattle/Tacoma Intl

23 Sept

SEA12:55Seattle/Tacoma Intl

25h 10m

1 stop

SYD07:05Sydney Kingsford Smith

$1,249

British Airways

14 Sept

SYD09:10Sydney Kingsford Smith

29h 42m

2 stops

SEA21:52Seattle/Tacoma Intl

21 Sept

SEA07:10Seattle/Tacoma Intl

30h 55m

1 stop

SYD07:05Sydney Kingsford Smith

$1,262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:10-17:34

2 stops25h 24m

Seattle/Tacoma Intl

Wed 23/9

17:02-07:05

1 stop21h 03m

$1,242

Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 14/9

09:20-10:05

1 stop17h 45m

Seattle/Tacoma Intl

Mon 21/9

19:15-07:20

1 stop19h 05m

$1,246

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:10-15:57

1 stop23h 47m

Seattle/Tacoma Intl

Wed 23/9

12:55-07:05

1 stop25h 10m

$1,249

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 8/9

09:10-19:39

1 stop27h 29m

Seattle/Tacoma Intl

Tue 10/11

17:55-09:00

1 stop20h 05m

$1,259

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 22/10

10:10-12:16

1 stop20h 06m

Seattle/Tacoma Intl

Wed 11/11

17:55-09:00

1 stop20h 05m

$1,262

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 5/11

11:20-16:00

1 stop23h 40m

Seattle/Tacoma Intl

Mon 9/11

11:13-09:00

2 stops50h 47m

$1,273

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:10-22:40

1 stop30h 30m

Seattle/Tacoma Intl

Wed 11/11

13:35-09:00

1 stop24h 25m

$1,273

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 19/10

10:15-14:50

2 stops22h 35m

Seattle/Tacoma Intl

Sat 14/11

19:55-08:30

2 stops41h 35m

$1,299

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 7/9

09:15-14:50

1 stop22h 35m

Seattle/Tacoma Intl

Sat 7/11

17:55-08:30

2 stops43h 35m

$1,299

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 5/11

11:20-14:37

1 stop22h 17m

Seattle/Tacoma Intl

Mon 9/11

15:15-09:35

1 stop23h 20m

$1,299

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 $1,175 to $1,407.
The lowest price recently found on this route was $1,242.

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 $1,211. 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 $1,384.

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 $1,517 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 $939 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 24% 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 August 2026, prices for Sydney to Seattle flights are approximately 18% 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 06m
Direct flights	None

The fastest flight from Sydney to Seattle takes 20h 06m

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 20h 06m.
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 August 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 (44% of total bookings). The next most popular airlines are United Airlines (25%), Qantas Airways (10%), 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 $1,045	Free cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $1,080	Free cancellation	Rating 7.8 8,497 reviews	Search Delta flights
Air Canada	PriceFrom $1,111	Free cancellation	Rating 7.1 11,415 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,176	Free cancellation	Rating 7.4 10,062 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,207	Free cancellation	Rating 7.5 1,073 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,254	Free cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights
ANA	PriceFrom $1,304	Free cancellation	Rating 8.3 1,289 reviews	Search ANA 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 $563

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 29/10. 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

British Airways flights from Sydney to Seattle

Our best British Airways deals on Sydney to Seattle flight tickets

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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

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

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