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Cheap flights from Sydney to Seattle from $542

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:10 am - 9:20 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
29h 10m1 stop Los Angeles
American Airlines Logo
4:30 pm - 9:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
21h 30m1 stop Los Angeles
$919American Airlines
Mon, Nov 9 - Mon, Nov 16
American Airlines Logo
11:10 am - 1:00 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 50m1 stop Los Angeles
American Airlines Logo
3:00 pm - 9:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 00m2 stops Phoenix Sky Harbor Intl Los Angeles
$919American Airlines
Mon, Nov 9 - Mon, Nov 16
American Airlines Logo
10:10 am - 4:07 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
23h 57m1 stop Los Angeles
American Airlines Logo
7:10 am - 9:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
31h 50m1 stop Los Angeles
$919American Airlines
Mon, Oct 12 - Sun, Oct 25
American Airlines Logo
11:10 am - 1:00 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 50m1 stop Los Angeles
American Airlines Logo
7:10 am - 9:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
30h 50m1 stop Los Angeles
$919American Airlines
Tue, Nov 10 - Tue, Nov 17
Air Canada Logo
10:20 am - 10:05 amSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
17h 45m1 stop Vancouver Intl
Air Canada Logo
7:05 pm - 4:40 pmSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
26h 35m2 stops Vancouver Intl Brisbane
$1,065Air Canada
Sat, Oct 24 - Sun, Nov 8
United Airlines Logo
11:50 am - 6:57 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
25h 07m2 stops San Francisco Denver Intl
United Airlines Logo
8:30 am - 7:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
27h 30m2 stops Denver Intl Houston George Bush Intcntl
$1,108United Airlines
Sun, Nov 1 - Wed, Nov 11
Air Canada Logo
11:20 am - 6:22 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m1 stop Vancouver Intl
Air Canada Logo
7:05 pm - 2:40 pmSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 35m2 stops Vancouver Intl Brisbane
$1,131Air Canada
Sun, Nov 15 - Sat, Nov 21
United Airlines Logo
10:55 am - 11:14 amSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
18h 19m1 stop Los Angeles
United Airlines Logo
11:59 pm - 7:00 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
36h 01m1 stop Houston George Bush Intcntl
$1,162United Airlines
Sat, Oct 31 - Fri, Nov 6
Air Canada Logo
9:00 am - 9:32 amSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
19h 32m2 stops Brisbane Vancouver Intl
Air Canada Logo
7:05 pm - 2:40 pmSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 35m2 stops Vancouver Intl Brisbane
$1,166Air Canada
Mon, Nov 23 - Tue, Dec 1
United Airlines Logo
11:50 am - 6:29 pmSYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
25h 39m1 stop San Francisco
United Airlines Logo
7:32 pm - 6:20 amSEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
39h 48m1 stop San Francisco
$1,620United Airlines
Tue, Dec 29 - Sat, Jan 23

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Air Tahiti Nui flights from Sydney to Seattle

Our best Air Tahiti Nui deals on Sydney to Seattle flight tickets
Air Tahiti Nui
Dec 18
SYD8:20 pmSydney Kingsford Smith
56h 40m
2 stops
SEA10:00 amSeattle/Tacoma Intl
Jan 2
SEA10:14 pmSeattle/Tacoma Intl
48h 31m
2 stops
SYD5:45 pmSydney Kingsford Smith
$1,477
Air Tahiti Nui
Nov 10
SYD8:55 amSydney Kingsford Smith
25h 09m
2 stops
SEA3:04 pmSeattle/Tacoma Intl
Nov 17
SEA5:59 pmSeattle/Tacoma Intl
31h 51m
3 stops
SYD8:50 pmSydney Kingsford Smith
$1,551
Air Tahiti Nui
Nov 10
SYD8:55 amSydney Kingsford Smith
25h 09m
2 stops
SEA3:04 pmSeattle/Tacoma Intl
Nov 17
SEA5:59 pmSeattle/Tacoma Intl
28h 41m
3 stops
SYD5:40 pmSydney Kingsford Smith
$1,564

American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets
American Airlines
Nov 9
SYD11:10 amSydney Kingsford Smith
20h 50m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
Nov 16
SEA3:00 pmSeattle/Tacoma Intl
23h 00m
2 stops
SYD9:00 amSydney Kingsford Smith
$919
American Airlines
Nov 2
SYD11:10 amSydney Kingsford Smith
23h 50m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Nov 10
SEA4:24 pmSeattle/Tacoma Intl
21h 36m
1 stop
SYD9:00 amSydney Kingsford Smith
$925
American Airlines
Oct 13
SYD10:10 amSydney Kingsford Smith
23h 57m
1 stop
SEA4:07 pmSeattle/Tacoma Intl
Oct 30
SEA3:10 pmSeattle/Tacoma Intl
23h 50m
2 stops
SYD9:00 amSydney Kingsford Smith
$968

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 11/9

11:10 am-9:20 pm

1 stop29h 10m

Seattle/Tacoma Intl

Mon 11/16

4:30 pm-9:00 am

1 stop21h 30m

$919
Quickest round-trip

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 11/9

11:10 am-1:00 pm

1 stop20h 50m

Seattle/Tacoma Intl

Mon 11/16

3:00 pm-9:00 am

2 stops23h 00m

$919

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 10/12

10:10 am-4:07 pm

1 stop23h 57m

Seattle/Tacoma Intl

Sun 10/25

7:10 am-9:00 am

1 stop31h 50m

$919

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 11/10

11:10 am-1:00 pm

1 stop20h 50m

Seattle/Tacoma Intl

Tue 11/17

7:10 am-9:00 am

1 stop30h 50m

$919

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 10/24

10:20 am-10:05 am

1 stop17h 45m

Seattle/Tacoma Intl

Sun 11/8

7:05 pm-4:40 pm

2 stops26h 35m

$1,065

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 11/1

11:50 am-6:57 pm

2 stops25h 07m

Seattle/Tacoma Intl

Wed 11/11

8:30 am-7:00 am

2 stops27h 30m

$1,108

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 11/15

11:20 am-6:22 pm

1 stop26h 02m

Seattle/Tacoma Intl

Sat 11/21

7:05 pm-2:40 pm

2 stops24h 35m

$1,131

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 10/31

10:55 am-11:14 am

1 stop18h 19m

Seattle/Tacoma Intl

Fri 11/6

11:59 pm-7:00 am

1 stop36h 01m

$1,162

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 11/23

9:00 am-9:32 am

2 stops19h 32m

Seattle/Tacoma Intl

Tue 12/1

7:05 pm-2:40 pm

2 stops24h 35m

$1,166

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 12/29

11:50 am-6:29 pm

1 stop25h 39m

Seattle/Tacoma Intl

Sat 1/23

7:32 pm-6:20 am

1 stop39h 48m

$1,620

Flights are sorted by cheapest round-trip 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 low for flights on this route.

Typical prices usually range from $989 to $1,235.
The lowest price recently found on this route was $919.

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Sydney to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,002. If you don’t want to visit Seattle in August, then you should wait until March to fly from Sydney, when ticket prices are also cheap, with an average price of $1,007.

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 $1,114 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Sydney for as low as $1,030 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 19% 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 15% more expensive 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 round-trip 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

$542

Fastest flight time

18h 55m

Direct flights

None
The best one-way flight to Seattle from Sydney in the past 72 hours is $542. The best round-trip flight deal from Sydney to Seattle found on momondo in the last 72 hours is $919.
The fastest flight from Sydney to Seattle takes 18h 55m
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?

    Seattle/Tacoma Intl is 7743.7 mi away from Sydney Kingsford Smith. Flights usually cover this in 18h 55m, depending on flying conditions and air traffic around both airports.

  • 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 are refreshed on a daily basis.

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
United AirlinesPriceFrom $691Free CancellationRating
7.4
10,247 reviews
Search United Airlines flights
Air CanadaPriceFrom $847Free CancellationRating
7.1
11,701 reviews
Search Air Canada flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Seattle for you.

Can I find flights from Sydney to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Sydney on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sydney to Seattle?

momondo helps you find the best flight between Sydney and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Sydney to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Sydney. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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