Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Sydney to Seattle from $686

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:20 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
17h 45m1 stop Vancouver Intl
Air Canada Logo
10:10 - 08:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,301Air Canada
Tue, 20 Oct - Tue, 27 Oct
Air Canada Logo
10:20 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
17h 45m1 stop Vancouver Intl
Air Canada Logo
10:10 - 08:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,308Air Canada
Tue, 20 Oct - Tue, 27 Oct
Multiple Airlines Logo
06:00 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 05m2 stops Brisbane Vancouver Intl
Multiple Airlines Logo
10:50 - 08:20SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
27h 30m1 stop Vancouver Intl
$1,410Multiple Airlines
Tue, 13 Oct - Tue, 20 Oct
Multiple Airlines Logo
06:00 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 05m2 stops Brisbane Vancouver Intl
Multiple Airlines Logo
19:15 - 08:20SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 05m1 stop Vancouver Intl
$1,413Multiple Airlines
Tue, 13 Oct - Tue, 20 Oct
American Airlines Logo
11:10 - 21:50SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
29h 40m1 stop Los Angeles Los Angeles
American Airlines Logo
12:47 - 06:55SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 08m1 stop Dallas/Fort Worth
$1,560American Airlines
Wed, 25 Nov - Wed, 2 Dec
American Airlines Logo
11:10 - 21:50SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
29h 40m1 stop Los Angeles Los Angeles
American Airlines Logo
12:38 - 06:55SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 17m1 stop Dallas/Fort Worth
$1,560American Airlines
Tue, 24 Nov - Tue, 1 Dec
United Airlines Logo
09:15 - 13:25SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
23h 10m1 stop Houston George Bush Intcntl
United Airlines Logo
13:16 - 06:20SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
22h 04m1 stop San Francisco
$1,711United Airlines
Wed, 25 Nov - Sun, 6 Dec
Delta Logo
10:40 - 12:40SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 00m2 stops Los Angeles Los Angeles Salt Lake City
Delta Logo
09:18 - 08:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 12m2 stops Salt Lake City Los Angeles Los Angeles
$1,711Delta
Thu, 19 Nov - Wed, 2 Dec
Delta Logo
10:15 - 22:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
29h 50m2 stops Los Angeles Los Angeles Salt Lake City
Delta Logo
13:30 - 07:50SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 20m2 stops Salt Lake City Los Angeles Los Angeles
$1,787Delta
Thu, 15 Oct - Thu, 22 Oct
United Airlines Logo
10:20 - 16:34SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
23h 14m1 stop San Francisco
United Airlines Logo
18:43 - 07:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 17m1 stop Los Angeles Los Angeles
$1,850United Airlines
Fri, 25 Sep - Fri, 2 Oct

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from Sydney to Seattle

Our best Air Canada deals on Sydney to Seattle flight tickets
Air Canada
20 Oct
SYD10:20Sydney Kingsford Smith
17h 45m
1 stop
SEA10:05Seattle/Tacoma Intl
27 Oct
SEA10:10Seattle/Tacoma Intl
28h 25m
1 stop
SYD08:35Sydney Kingsford Smith
$1,301
Air Canada
20 Oct
SYD10:20Sydney Kingsford Smith
17h 45m
1 stop
SEA10:05Seattle/Tacoma Intl
27 Oct
SEA10:10Seattle/Tacoma Intl
28h 25m
1 stop
SYD08:35Sydney Kingsford Smith
$1,308
Air Canada
20 Oct
SYD08:00Sydney Kingsford Smith
20h 05m
2 stops
SEA10:05Seattle/Tacoma Intl
27 Oct
SEA19:05Seattle/Tacoma Intl
19h 30m
1 stop
SYD08:35Sydney Kingsford Smith
$1,319

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets
American Airlines
19 Nov
SYD14:05Sydney Kingsford Smith
25h 03m
1 stop
SEA20:08Seattle/Tacoma Intl
1 Dec
SEA07:21Seattle/Tacoma Intl
30h 39m
1 stop
SYD09:00Sydney Kingsford Smith
$1,560
American Airlines
25 Nov
SYD11:10Sydney Kingsford Smith
42h 52m
2 stops
SEA11:02Seattle/Tacoma Intl
1 Dec
SEA12:38Seattle/Tacoma Intl
23h 17m
1 stop
SYD06:55Sydney Kingsford Smith
$1,588
American Airlines
25 Nov
SYD11:10Sydney Kingsford Smith
40h 05m
2 stops
SEA08:15Seattle/Tacoma Intl
2 Dec
SEA14:07Seattle/Tacoma Intl
26h 38m
2 stops
SYD11:45Sydney Kingsford Smith
$1,616

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:20-10:05

1 stop17h 45m

Seattle/Tacoma Intl

Tue 27/10

10:10-08:35

1 stop28h 25m

$1,301

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:20-10:05

1 stop17h 45m

Seattle/Tacoma Intl

Tue 27/10

10:10-08:35

1 stop28h 25m

$1,308

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 13/10

06:00-10:05

2 stops22h 05m

Seattle/Tacoma Intl

Tue 20/10

10:50-08:20

1 stop27h 30m

$1,410
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 13/10

06:00-10:05

2 stops22h 05m

Seattle/Tacoma Intl

Tue 20/10

19:15-08:20

1 stop19h 05m

$1,413

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 25/11

11:10-21:50

1 stop29h 40m

Seattle/Tacoma Intl

Wed 2/12

12:47-06:55

1 stop23h 08m

$1,560

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 24/11

11:10-21:50

1 stop29h 40m

Seattle/Tacoma Intl

Tue 1/12

12:38-06:55

1 stop23h 17m

$1,560

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 25/11

09:15-13:25

1 stop23h 10m

Seattle/Tacoma Intl

Sun 6/12

13:16-06:20

1 stop22h 04m

$1,711

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 19/11

10:40-12:40

2 stops21h 00m

Seattle/Tacoma Intl

Wed 2/12

09:18-08:30

2 stops28h 12m

$1,711

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 15/10

10:15-22:05

2 stops29h 50m

Seattle/Tacoma Intl

Thu 22/10

13:30-07:50

2 stops24h 20m

$1,787

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 25/9

10:20-16:34

1 stop23h 14m

Seattle/Tacoma Intl

Fri 2/10

18:43-07:00

1 stop19h 17m

$1,850

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seattle from

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

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 $1,188 to $1,853.
The lowest price recently found on this route was $1,301.

What is the cheapest month to fly to Seattle?

The month of March is, on average, the cheapest month to fly to Seattle from Sydney, with most prices found around $1,395. If you are unable to visit Seattle during the month of March, then departing from Sydney during the month August is also very affordable. Most momondo users find prices during this month for around $1,400.

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 $1,540 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 $953 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 13% 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 September 2026, prices for Sydney to Seattle flights are approximately 22% 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

$686

Fastest flight time

17h 44m

Direct flights

None
The best one-way flight to Seattle from Sydney in the past 72 hours is $686. The best return flight deal from Sydney to Seattle found on momondo in the last 72 hours is $1,301.
The fastest flight from Sydney to Seattle takes 17h 44m
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 17h 44m.

  • 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?

  • 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?

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
Air CanadaPriceFrom $1,118Free cancellationRating
7.1
11,569 reviews
Search Air Canada flights
Hawaiian AirlinesPriceFrom $1,133Free cancellationRating
7.8
2,815 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $1,171Free cancellationRating
7.8
8,538 reviews
Search Delta flights
Qantas AirwaysPriceFrom $1,186Free cancellationRating
7.5
1,087 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,189Free cancellationRating
7.4
10,157 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,232Free cancellationRating
7.1
12,023 reviews
Search American Airlines flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 1/10
Thu 8/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Washington

Spokane Airport