Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Sydney to Seattle from $858

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 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Multiple Airlines Logo
06:00 - 18:26SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
31h 26m2 stops Nadi Los Angeles Los Angeles
Multiple Airlines Logo
12:42 - 12:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 53m2 stops Los Angeles Los Angeles Nadi
$1,235Multiple Airlines
Thu, 19 Nov - Sun, 22 Nov
Multiple Airlines Logo
13:15 - 19:39SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
23h 24m2 stops Nadi Los Angeles Los Angeles
Multiple Airlines Logo
17:04 - 22:25SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
35h 21m2 stops Los Angeles Los Angeles Nadi
$1,278Multiple Airlines
Wed, 30 Sep - Sun, 18 Oct
Air Canada Logo
11:20 - 18:22SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m1 stop Vancouver Intl
Air Canada Logo
19:05 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 30m1 stop Vancouver Intl
$1,441Air Canada
Mon, 30 Nov - Tue, 1 Dec
Air Canada Logo
08:30 - 09:27SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
19h 57m2 stops Brisbane Vancouver Intl
Air Canada Logo
10:10 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,459Air Canada
Mon, 30 Nov - Tue, 1 Dec
Qantas Airways Logo
09:10 - 13:39SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 29m1 stop Los Angeles Los Angeles
Qantas Airways Logo
12:55 - 07:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
25h 10m1 stop Los Angeles Los Angeles
$1,700Qantas Airways
Thu, 10 Sep - Fri, 25 Sep
United Airlines Logo
10:20 - 17:42SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
24h 22m2 stops San Francisco Denver Intl
United Airlines Logo
18:43 - 08:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 17m1 stop Los Angeles Los Angeles
$1,712United Airlines
Wed, 16 Sep - Sun, 4 Oct
Delta Logo
09:15 - 16:44SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
24h 29m1 stop Los Angeles Los Angeles
Delta Logo
07:15 - 07:50SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
30h 35m1 stop Los Angeles Los Angeles
$1,712Delta
Wed, 16 Sep - Sun, 4 Oct
United Airlines Logo
09:15 - 12:45SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 30m1 stop Houston George Bush Intcntl
United Airlines Logo
19:32 - 06:20SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
39h 48m1 stop San Francisco
$1,738United Airlines
Fri, 4 Dec - Sat, 23 Jan
Delta Logo
09:15 - 14:53SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 38m1 stop Los Angeles Los Angeles
Delta Logo
21:35 - 06:50SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
40h 15m1 stop Los Angeles Los Angeles
$1,774Delta
Fri, 11 Sep - Sat, 19 Sep
Qantas Airways Logo
11:20 - 14:42SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 22m1 stop Los Angeles Los Angeles
Qantas Airways Logo
17:55 - 06:25SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
41h 30m1 stop Los Angeles Los Angeles
$1,800Qantas Airways
Sat, 23 Jan - Sat, 30 Jan

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
30 Sept
SYD09:20Sydney Kingsford Smith
26h 12m
1 stop
SEA18:32Seattle/Tacoma Intl
18 Oct
SEA10:30Seattle/Tacoma Intl
27h 50m
1 stop
SYD08:20Sydney Kingsford Smith
$1,513
Air Canada
8 Sept
SYD09:20Sydney Kingsford Smith
30h 27m
1 stop
SEA22:47Seattle/Tacoma Intl
23 Sept
SEA15:00Seattle/Tacoma Intl
37h 25m
2 stops
SYD21:25Sydney Kingsford Smith
$1,515
Air Canada
8 Sept
SYD09:20Sydney Kingsford Smith
26h 12m
1 stop
SEA18:32Seattle/Tacoma Intl
15 Sept
SEA15:00Seattle/Tacoma Intl
23h 20m
1 stop
SYD07:20Sydney Kingsford Smith
$1,525

Philippine Airlines flights from Sydney to Seattle

Our best Philippine Airlines deals on Sydney to Seattle flight tickets
Philippine Airlines
30 Aug
SYD10:15Sydney Kingsford Smith
26h 50m
1 stop
SEA20:05Seattle/Tacoma Intl
9 Sept
SEA23:10Seattle/Tacoma Intl
39h 50m
1 stop
SYD08:00Sydney Kingsford Smith
$5,894
Philippine Airlines
26 Aug
SYD10:15Sydney Kingsford Smith
26h 50m
1 stop
SEA20:05Seattle/Tacoma Intl
4 Sept
SEA23:10Seattle/Tacoma Intl
39h 50m
1 stop
SYD08:00Sydney Kingsford Smith
$6,678
Philippine Airlines
26 Aug
SYD10:15Sydney Kingsford Smith
26h 50m
1 stop
SEA20:05Seattle/Tacoma Intl
4 Sept
SEA23:10Seattle/Tacoma Intl
39h 50m
1 stop
SYD08:00Sydney Kingsford Smith
$6,682

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 17 August 2026.
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

Thu 19/11

06:00-18:26

2 stops31h 26m

Seattle/Tacoma Intl

Sun 22/11

12:42-12:35

2 stops28h 53m

$1,235

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 30/9

13:15-19:39

2 stops23h 24m

Seattle/Tacoma Intl

Sun 18/10

17:04-22:25

2 stops35h 21m

$1,278

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 30/11

11:20-18:22

1 stop26h 02m

Seattle/Tacoma Intl

Tue 1/12

19:05-09:35

1 stop19h 30m

$1,441

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 30/11

08:30-09:27

2 stops19h 57m

Seattle/Tacoma Intl

Tue 1/12

10:10-09:35

1 stop28h 25m

$1,459

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 10/9

09:10-13:39

1 stop21h 29m

Seattle/Tacoma Intl

Fri 25/9

12:55-07:05

1 stop25h 10m

$1,700
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 16/9

10:20-17:42

2 stops24h 22m

Seattle/Tacoma Intl

Sun 4/10

18:43-08:00

1 stop19h 17m

$1,712

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 16/9

09:15-16:44

1 stop24h 29m

Seattle/Tacoma Intl

Sun 4/10

07:15-07:50

1 stop30h 35m

$1,712

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 4/12

09:15-12:45

1 stop22h 30m

Seattle/Tacoma Intl

Sat 23/1

19:32-06:20

1 stop39h 48m

$1,738

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 11/9

09:15-14:53

1 stop22h 38m

Seattle/Tacoma Intl

Sat 19/9

21:35-06:50

1 stop40h 15m

$1,774

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 23/1

11:20-14:42

1 stop22h 22m

Seattle/Tacoma Intl

Sat 30/1

17:55-06:25

1 stop41h 30m

$1,800

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 low for flights on this route.

Typical prices usually range from $1,290 to $1,562.
The lowest price recently found on this route was $1,235.

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 $1,395. If you are unable to visit Seattle during the month of August, then departing from Sydney during the month March is also very affordable. Most momondo users find prices during this month for around $1,408.

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 $1,533 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 $931 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 August 2026, prices for Sydney to Seattle flights are approximately 16% 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

17h 31m

Direct flights

None
The fastest flight from Sydney to Seattle takes 17h 31m
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 31m.

  • 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
Hawaiian AirlinesPriceFrom $1,037Free cancellationRating
7.8
2,817 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $1,129Free cancellationRating
7.1
11,483 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,177Free cancellationRating
7.4
10,106 reviews
Search United Airlines flights
DeltaPriceFrom $1,182Free cancellationRating
7.8
8,503 reviews
Search Delta flights
Qantas AirwaysPriceFrom $1,197Free cancellationRating
7.5
1,083 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,243Free cancellationRating
7.1
11,943 reviews
Search American Airlines flights
ANAPriceFrom $1,293Free cancellationRating
8.3
1,298 reviews
Search ANA 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
Wed 16/9
Wed 23/9
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