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Cheap flights from Sydney to Seattle from $770

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.
American Airlines Logo
10:10 - 13:07SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 57m1 stop Los Angeles Los Angeles
American Airlines Logo
07:10 - 08:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
30h 55m1 stop Los Angeles Los Angeles
$1,300American Airlines
Mon, 5 Oct - Sun, 18 Oct
American Airlines Logo
10:10 - 17:33SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
25h 23m2 stops Los Angeles Los Angeles San Francisco
American Airlines Logo
13:37 - 08:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 28m1 stop Los Angeles Los Angeles
$1,300American Airlines
Mon, 5 Oct - Sun, 18 Oct
Delta Logo
10:40 - 19:02SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
27h 22m2 stops Los Angeles Los Angeles Salt Lake City
Delta Logo
09:25 - 08:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 05m2 stops Salt Lake City Los Angeles Los Angeles
$1,310Delta
Tue, 3 Nov - Tue, 10 Nov
Delta Logo
10:15 - 16:55SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
24h 40m2 stops Los Angeles Los Angeles Salt Lake City
Delta Logo
21:35 - 08:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
39h 55m1 stop Los Angeles Los Angeles
$1,310Delta
Wed, 7 Oct - Sat, 7 Nov
Qantas Airways Logo
18:50 - 22:37SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 47m1 stop Los Angeles Los Angeles
Qantas Airways Logo
17:44 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
21h 16m1 stop Los Angeles Los Angeles
$1,399Qantas Airways
Fri, 16 Oct - Sat, 31 Oct
Qantas Airways Logo
10:10 - 12:16SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 06m1 stop Los Angeles Los Angeles
Qantas Airways Logo
15:46 - 06:25SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 39m1 stop Los Angeles Los Angeles
$1,406Qantas Airways
Tue, 20 Oct - Fri, 20 Nov
Air Canada Logo
10:20 - 18:32SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 12m1 stop Vancouver Intl
Air Canada Logo
10:10 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,434Air Canada
Thu, 15 Oct - Thu, 31 Dec
Multiple Airlines Logo
06:00 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 05m2 stops Brisbane Vancouver Intl
Multiple Airlines Logo
10:10 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,449Multiple Airlines
Thu, 15 Oct - Thu, 31 Dec
Air Canada Logo
11:20 - 18:22SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m1 stop Vancouver Intl
Air Canada Logo
19:00 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 35m1 stop Vancouver Intl
$1,467Air Canada
Wed, 3 Feb - Wed, 3 Mar
Multiple Airlines Logo
10:20 - 07:08SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
38h 48m1 stop Vancouver Intl
Multiple Airlines Logo
19:05 - 08:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
19h 30m1 stop Vancouver Intl
$1,473Multiple Airlines
Tue, 20 Oct - Mon, 26 Oct

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American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets
American Airlines
5 Oct
SYD10:10Sydney Kingsford Smith
25h 23m
2 stops
SEA17:33Seattle/Tacoma Intl
18 Oct
SEA11:44Seattle/Tacoma Intl
26h 21m
2 stops
SYD08:05Sydney Kingsford Smith
$1,300
American Airlines
5 Oct
SYD10:10Sydney Kingsford Smith
23h 54m
2 stops
SEA16:04Seattle/Tacoma Intl
18 Oct
SEA11:44Seattle/Tacoma Intl
26h 21m
2 stops
SYD08:05Sydney Kingsford Smith
$1,306
American Airlines
4 Nov
SYD11:10Sydney Kingsford Smith
25h 43m
2 stops
SEA17:53Seattle/Tacoma Intl
11 Nov
SEA13:35Seattle/Tacoma Intl
24h 25m
1 stop
SYD09:00Sydney Kingsford Smith
$1,308

Delta flights from Sydney to Seattle

Our best Delta deals on Sydney to Seattle flight tickets
Delta
5 Oct
SYD10:15Sydney Kingsford Smith
22h 35m
2 stops
SEA14:50Seattle/Tacoma Intl
3 Nov
SEA14:30Seattle/Tacoma Intl
23h 00m
1 stop
SYD08:30Sydney Kingsford Smith
$1,310
Delta
5 Oct
SYD10:15Sydney Kingsford Smith
26h 21m
2 stops
SEA18:36Seattle/Tacoma Intl
18 Oct
SEA07:15Seattle/Tacoma Intl
30h 35m
2 stops
SYD07:50Sydney Kingsford Smith
$1,312
Delta
5 Oct
SYD10:15Sydney Kingsford Smith
20h 12m
1 stop
SEA12:27Seattle/Tacoma Intl
4 Nov
SEA12:30Seattle/Tacoma Intl
25h 00m
1 stop
SYD08:30Sydney Kingsford Smith
$1,323

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

Mon 5/10

10:10-13:07

1 stop20h 57m

Seattle/Tacoma Intl

Sun 18/10

07:10-08:05

1 stop30h 55m

$1,300

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 5/10

10:10-17:33

2 stops25h 23m

Seattle/Tacoma Intl

Sun 18/10

13:37-08:05

1 stop24h 28m

$1,300

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 3/11

10:40-19:02

2 stops27h 22m

Seattle/Tacoma Intl

Tue 10/11

09:25-08:30

2 stops28h 05m

$1,310

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 7/10

10:15-16:55

2 stops24h 40m

Seattle/Tacoma Intl

Sat 7/11

21:35-08:30

1 stop39h 55m

$1,310

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 16/10

18:50-22:37

1 stop21h 47m

Seattle/Tacoma Intl

Sat 31/10

17:44-09:00

1 stop21h 16m

$1,399
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:10-12:16

1 stop20h 06m

Seattle/Tacoma Intl

Fri 20/11

15:46-06:25

1 stop19h 39m

$1,406

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 15/10

10:20-18:32

1 stop26h 12m

Seattle/Tacoma Intl

Thu 31/12

10:10-09:35

1 stop28h 25m

$1,434

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 15/10

06:00-10:05

2 stops22h 05m

Seattle/Tacoma Intl

Thu 31/12

10:10-09:35

1 stop28h 25m

$1,449

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 3/2

11:20-18:22

1 stop26h 02m

Seattle/Tacoma Intl

Wed 3/3

19:00-09:35

1 stop19h 35m

$1,467

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:20-07:08

1 stop38h 48m

Seattle/Tacoma Intl

Mon 26/10

19:05-08:35

1 stop19h 30m

$1,473

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $1,293 to $1,928.
The lowest price recently found on this route was $1,300.

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 $1,406. 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 $1,413.

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 $1,557 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 $1,445 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 14% 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

$770

Fastest flight time

20h 12m

Direct flights

None
The best one-way flight to Seattle from Sydney in the past 72 hours is $770. The best return flight deal from Sydney to Seattle found on momondo in the last 72 hours is $1,300.
The fastest flight from Sydney to Seattle takes 20h 12m
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 12m.

  • 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 $1,149Free cancellationRating
7.8
2,811 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $1,161Free cancellationRating
7.1
11,657 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,193Free cancellationRating
7.4
10,227 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,236Free cancellationRating
7.0
12,077 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,256Free cancellationRating
7.5
1,102 reviews
Search Qantas Airways flights
DeltaPriceFrom $1,350Free cancellationRating
7.8
8,592 reviews
Search Delta 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.

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