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

Flights via Vancouver (YVR) offer the lowest average return price of $1,384.

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

Vancouver (YVR) was the most common stop: 41% 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 Vancouver (YVR) have the shortest average one-way travel time: 17h 08m.

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

Honolulu (HNL) has the shortest average stopover time for this route: 1h 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 37% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 12 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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 12 as of December 2025.

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.

$799 Cheap Flights from Sydney to Seattle in 2025/26

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21:20 - 22:06

SYD

SEA

42h 46m2 stops

22:30 - 09:50

SEA

SYD

41h 20m1 stop

$1,383Multiple Airlines

Sun, 8 Mar - Sun, 15 Mar

15:55 - 12:29

SYD

SEA

39h 34m2 stops

15:57 - 17:40

SEA

SYD

30h 43m2 stops

$1,404Multiple Airlines

Sat, 24 Jan - Wed, 28 Jan

14:00 - 17:57

SYD

SEA

22h 57m2 stops

15:50 - 12:35

SEA

SYD

26h 45m2 stops

$1,413Multiple Airlines

Sun, 8 Mar - Sun, 15 Mar

21:40 - 21:02

SYD

SEA

18h 22m1 stop

15:45 - 19:45

SEA

SYD

33h 00m1 stop

$1,427Hawaiian Airlines

Thu, 29 Jan - Thu, 5 Feb

10:20 - 13:55

SYD

SEA

22h 35m1 stop

00:10 - 08:20

SEA

SYD

38h 10m1 stop

$1,444Asiana Airlines

Sun, 8 Mar - Sat, 14 Mar

21:40 - 05:04

SYD

SEA

26h 24m2 stops

07:00 - 19:45

SEA

SYD

17h 45m1 stop

$1,451Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

09:30 - 14:55

SYD

SEA

22h 25m1 stop

00:10 - 07:30

SEA

SYD

38h 20m1 stop

$1,475Asiana Airlines

Sun, 31 May - Fri, 26 Jun

10:20 - 13:55

SYD

SEA

22h 35m1 stop

00:10 - 08:20

SEA

SYD

38h 10m1 stop

$1,478Asiana Airlines

Fri, 6 Mar - Sun, 15 Mar

13:15 - 18:47

SYD

SEA

22h 32m2 stops

17:59 - 11:45

SEA

SYD

24h 46m2 stops

$1,504Multiple Airlines

Wed, 15 Apr - Fri, 15 May

14:00 - 16:47

SYD

SEA

21h 47m2 stops

17:59 - 12:35

SEA

SYD

23h 36m2 stops

$1,507Multiple Airlines

Fri, 30 Jan - Fri, 6 Feb

Qantas Airways flights from Sydney to Seattle

Our best Qantas Airways deals on Sydney to Seattle flight tickets

Qantas Airways

28 Jan

SYD16:35Sydney Kingsford Smith

23h 17m

2 stops

SEA20:52Seattle/Tacoma Intl

7 Feb

SEA12:59Seattle/Tacoma Intl

26h 56m

2 stops

SYD10:55Sydney Kingsford Smith

$1,466

Find similar

Qantas Airways

5 Mar

SYD14:55Sydney Kingsford Smith

24h 03m

2 stops

SEA19:58Seattle/Tacoma Intl

13 Mar

SEA16:50Seattle/Tacoma Intl

23h 00m

2 stops

SYD09:50Sydney Kingsford Smith

$1,587

Find similar

Qantas Airways

5 Mar

SYD13:00Sydney Kingsford Smith

25h 58m

2 stops

SEA19:58Seattle/Tacoma Intl

9 Mar

SEA16:50Seattle/Tacoma Intl

27h 05m

2 stops

SYD13:55Sydney Kingsford Smith

$1,590

Find similar

Air Canada flights from Sydney to Seattle

Our best Air Canada deals on Sydney to Seattle flight tickets

Air Canada

24 Jan

SYD11:20Sydney Kingsford Smith

22h 11m

1 stop

SEA14:31Seattle/Tacoma Intl

28 Jan

SEA09:55Seattle/Tacoma Intl

33h 45m

2 stops

SYD14:40Sydney Kingsford Smith

$1,621

Find similar

Air Canada

11 Mar

SYD10:20Sydney Kingsford Smith

22h 41m

1 stop

SEA15:01Seattle/Tacoma Intl

18 Mar

SEA05:50Seattle/Tacoma Intl

32h 45m

1 stop

SYD08:35Sydney Kingsford Smith

$1,650

Find similar

Air Canada

5 Mar

SYD11:20Sydney Kingsford Smith

29h 46m

1 stop

SEA22:06Seattle/Tacoma Intl

9 Mar

SEA20:00Seattle/Tacoma Intl

18h 35m

1 stop

SYD08:35Sydney Kingsford Smith

$1,651

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/3

21:20-22:06

2 stops42h 46m

Seattle/Tacoma Intl

Sun 15/3

22:30-09:50

1 stop41h 20m

$1,383

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 24/1

15:55-12:29

2 stops39h 34m

Seattle/Tacoma Intl

Wed 28/1

15:57-17:40

2 stops30h 43m

$1,404

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/3

14:00-17:57

2 stops22h 57m

Seattle/Tacoma Intl

Sun 15/3

15:50-12:35

2 stops26h 45m

$1,413

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 29/1

21:40-21:02

1 stop18h 22m

Seattle/Tacoma Intl

Thu 5/2

15:45-19:45

1 stop33h 00m

$1,427

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 8/3

10:20-13:55

1 stop22h 35m

Seattle/Tacoma Intl

Sat 14/3

00:10-08:20

1 stop38h 10m

$1,444

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 29/1

21:40-05:04

2 stops26h 24m

Seattle/Tacoma Intl

Thu 5/2

07:00-19:45

1 stop17h 45m

$1,451

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 31/5

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Fri 26/6

00:10-07:30

1 stop38h 20m

$1,475

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 6/3

10:20-13:55

1 stop22h 35m

Seattle/Tacoma Intl

Sun 15/3

00:10-08:20

1 stop38h 10m

$1,478

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 15/4

13:15-18:47

2 stops22h 32m

Seattle/Tacoma Intl

Fri 15/5

17:59-11:45

2 stops24h 46m

$1,504

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 30/1

14:00-16:47

2 stops21h 47m

Seattle/Tacoma Intl

Fri 6/2

17:59-12:35

2 stops23h 36m

$1,507

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 $1,368. 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 $1,434.

What is the cheapest day to depart on your flight to Seattle?

The cheapest day to depart from Sydney to Seattle is on a Thursday. Travellers who choose to depart for Seattle on a Thursday will often find tickets for as low as $1,550. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to Seattle for around $1,782.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from Sydney to Seattle at midday for as low as $1,477. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the afternoon when prices are around $1,803.

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 $1,632 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 $1,370 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 5% 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 December 2025, prices for Sydney to Seattle flights are approximately 55% 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	18h 30m
Direct flights	None

The fastest flight from Sydney to Seattle takes 18h 30m

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 18h 30m.
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 12 as of December 2025.
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 (30% of total bookings). The next most popular airlines are United Airlines (27%), Qantas Airways (13%), 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
Virgin Australia	PriceFrom $1,132	Free cancellation	Rating 7.6 428 reviews	Search Virgin Australia flights
Alaska Airlines	PriceFrom $1,135	Free cancellation	Rating 8.0 11,474 reviews	Search Alaska Airlines flights
Delta	PriceFrom $1,144	Free cancellation	Rating 7.9 8,006 reviews	Search Delta flights
Air Canada	PriceFrom $1,153	Free cancellation	Rating 7.1 10,532 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,196	Free cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $1,234	Free cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
Qantas Airways	PriceFrom $1,248	Free cancellation	Rating 7.5 946 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,274	Free cancellation	Rating 7.2 11,053 reviews	Search American Airlines flights
Philippine Airlines	PriceFrom $1,288	Free cancellation	Rating 7.3 943 reviews	Search Philippine Airlines flights
Singapore Airlines	PriceFrom $1,431	Free cancellation	Rating 8.1 1,413 reviews	Search Singapore 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

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Cheap flights from Sydney to Seattle from $782

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 24/1. 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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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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Qantas Airways flights from Sydney to Seattle

Our best Qantas Airways deals on Sydney to Seattle flight tickets

Air Canada flights from Sydney to Seattle

Our best Air Canada 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?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight 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 5% 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 December 2025, prices for Sydney to Seattle flights are approximately 55% cheaper 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: 41% 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 Vancouver (YVR) offer the lowest average return price of $1,384.

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 08m.

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

Honolulu (HNL) has the shortest average stopover time for this route: 1h 50m.

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