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Cheap flights from Sydney to Seattle from $622

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.
Delta Logo
10:40 - 10:05SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
18h 25m1 stop Los Angeles
Delta Logo
07:15 - 08:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
30h 15m1 stop Los Angeles
$1,063Delta
Thu, 19 Nov - Mon, 30 Nov
Delta Logo
10:40 - 23:59SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
32h 19m2 stops Los Angeles Salt Lake City
Delta Logo
12:31 - 08:30SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
24h 59m1 stop Los Angeles
$1,063Delta
Thu, 19 Nov - Mon, 30 Nov
United Airlines Logo
11:50 - 12:20SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
19h 30m1 stop San Francisco
United Airlines Logo
12:20 - 09:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
25h 45m1 stop Los Angeles
$1,065United Airlines
Mon, 2 Nov - Wed, 18 Nov
United Airlines Logo
10:55 - 17:57SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m2 stops Los Angeles Denver Intl
United Airlines Logo
12:45 - 09:05SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
25h 20m2 stops Denver Intl Los Angeles
$1,065United Airlines
Mon, 2 Nov - Wed, 18 Nov
American Airlines Logo
11:10 - 13:00SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 50m1 stop Los Angeles
American Airlines Logo
16:42 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
21h 18m1 stop Los Angeles
$1,388American Airlines
Mon, 16 Nov - Fri, 4 Dec
Air Canada Logo
11:20 - 18:22SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
26h 02m1 stop Vancouver Intl
Air Canada Logo
15:15 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
23h 20m1 stop Vancouver Intl
$1,437Air Canada
Mon, 25 Jan - Mon, 1 Feb
American Airlines Logo
11:15 - 13:54SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
21h 39m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
16:40 - 10:20SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
22h 40m2 stops Los Angeles Brisbane
$1,454American Airlines
Thu, 19 Nov - Mon, 30 Nov
Air Canada Logo
08:30 - 09:32SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
20h 02m2 stops Brisbane Vancouver Intl
Air Canada Logo
10:10 - 09:35SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
28h 25m1 stop Vancouver Intl
$1,458Air Canada
Mon, 25 Jan - Mon, 1 Feb
Qantas Airways Logo
11:15 - 10:57SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
18h 42m1 stop Los Angeles
Qantas Airways Logo
17:42 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
20h 18m1 stop Los Angeles
$1,492Qantas Airways
Tue, 17 Nov - Fri, 4 Dec
Qantas Airways Logo
11:10 - 14:12SYD  Sydney Kingsford Smith-SEA Seattle/Tacoma Intl
22h 02m1 stop Los Angeles
Qantas Airways Logo
17:42 - 09:00SEA  Seattle/Tacoma Intl-SYD Sydney Kingsford Smith
20h 18m1 stop Los Angeles
$1,492Qantas Airways
Tue, 17 Nov - Thu, 3 Dec

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American Airlines flights from Sydney to Seattle

Our best American Airlines deals on Sydney to Seattle flight tickets
American Airlines
27 Oct
SYD11:10Sydney Kingsford Smith
29h 27m
1 stop
SEA22:37Seattle/Tacoma Intl
11 Nov
SEA15:00Seattle/Tacoma Intl
23h 00m
2 stops
SYD09:00Sydney Kingsford Smith
$1,321
American Airlines
16 Nov
SYD11:10Sydney Kingsford Smith
20h 50m
1 stop
SEA13:00Seattle/Tacoma Intl
4 Dec
SEA16:42Seattle/Tacoma Intl
21h 18m
1 stop
SYD09:00Sydney Kingsford Smith
$1,388
American Airlines
19 Nov
SYD11:15Sydney Kingsford Smith
21h 39m
2 stops
SEA13:54Seattle/Tacoma Intl
30 Nov
SEA16:40Seattle/Tacoma Intl
22h 40m
2 stops
SYD10:20Sydney Kingsford Smith
$1,454

Delta flights from Sydney to Seattle

Our best Delta deals on Sydney to Seattle flight tickets
Delta
19 Nov
SYD10:40Sydney Kingsford Smith
18h 25m
1 stop
SEA10:05Seattle/Tacoma Intl
30 Nov
SEA07:15Seattle/Tacoma Intl
30h 15m
1 stop
SYD08:30Sydney Kingsford Smith
$1,063
Delta
15 Oct
SYD10:15Sydney Kingsford Smith
26h 37m
2 stops
SEA18:52Seattle/Tacoma Intl
28 Oct
SEA11:05Seattle/Tacoma Intl
26h 15m
2 stops
SYD07:20Sydney Kingsford Smith
$1,066
Delta
28 Oct
SYD09:40Sydney Kingsford Smith
23h 10m
2 stops
SEA14:50Seattle/Tacoma Intl
4 Nov
SEA07:15Seattle/Tacoma Intl
30h 15m
2 stops
SYD08:30Sydney Kingsford Smith
$1,070

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

Thu 19/11

10:40-10:05

1 stop18h 25m

Seattle/Tacoma Intl

Mon 30/11

07:15-08:30

1 stop30h 15m

$1,063

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 19/11

10:40-23:59

2 stops32h 19m

Seattle/Tacoma Intl

Mon 30/11

12:31-08:30

1 stop24h 59m

$1,063

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 2/11

11:50-12:20

1 stop19h 30m

Seattle/Tacoma Intl

Wed 18/11

12:20-09:05

1 stop25h 45m

$1,065

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 2/11

10:55-17:57

2 stops26h 02m

Seattle/Tacoma Intl

Wed 18/11

12:45-09:05

2 stops25h 20m

$1,065

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 16/11

11:10-13:00

1 stop20h 50m

Seattle/Tacoma Intl

Fri 4/12

16:42-09:00

1 stop21h 18m

$1,388

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 25/1

11:20-18:22

1 stop26h 02m

Seattle/Tacoma Intl

Mon 1/2

15:15-09:35

1 stop23h 20m

$1,437

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 19/11

11:15-13:54

2 stops21h 39m

Seattle/Tacoma Intl

Mon 30/11

16:40-10:20

2 stops22h 40m

$1,454

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 25/1

08:30-09:32

2 stops20h 02m

Seattle/Tacoma Intl

Mon 1/2

10:10-09:35

1 stop28h 25m

$1,458
Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 17/11

11:15-10:57

1 stop18h 42m

Seattle/Tacoma Intl

Fri 4/12

17:42-09:00

1 stop20h 18m

$1,492

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 17/11

11:10-14:12

1 stop22h 02m

Seattle/Tacoma Intl

Thu 3/12

17:42-09:00

1 stop20h 18m

$1,492

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 low for flights on this route.

Typical prices usually range from $1,391 to $1,674.
The lowest price recently found on this route was $1,063.

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 $1,440. 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 $1,447.

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 $1,610 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 $1,441 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 10% 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 October 2026, prices for Sydney to Seattle flights are approximately 9% 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 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

$622

Fastest flight time

20h 29m

Direct flights

None
The best one-way flight to Seattle from Sydney in the past 72 hours is $622. The best return flight deal from Sydney to Seattle found on momondo in the last 72 hours is $1,063.
The fastest flight from Sydney to Seattle takes 20h 29m
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 29m.

  • 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 $1,225Free cancellationRating
7.1
11,718 reviews
Search Air Canada flights
American AirlinesPriceFrom $1,266Free cancellationRating
7.0
12,132 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,320Free cancellationRating
7.5
1,103 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,340Free cancellationRating
7.4
10,281 reviews
Search United Airlines flights
DeltaPriceFrom $1,352Free cancellationRating
7.8
8,628 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $1,493Free cancellationRating
7.8
2,807 reviews
Search Hawaiian 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.

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