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Cheap flights from Sydney to Seattle from $642

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 26/2. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 19:58
SYD
-
SEA
23h 58m
2 stops
Multiple Airlines Logo
17:50 - 12:35
SEA
-
SYD
24h 45m
2 stops
$1,229Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
14:00 - 18:40
SYD
-
SEA
22h 40m
2 stops
Multiple Airlines Logo
11:39 - 12:35
SEA
-
SYD
30h 56m
2 stops
$1,372Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Hawaiian Airlines Logo
21:40 - 05:30
SYD
-
SEA
25h 50m
1 stop
Hawaiian Airlines Logo
17:50 - 19:45
SEA
-
SYD
31h 55m
1 stop
$1,384Hawaiian Airlines
Tue, 10 Mar - Tue, 17 Mar
Philippine Airlines Logo
11:35 - 19:40
SYD
-
SEA
26h 05m
1 stop
Philippine Airlines Logo
22:30 - 09:50
SEA
-
SYD
41h 20m
1 stop
$1,430Philippine Airlines
Tue, 10 Mar - Tue, 17 Mar
Delta Logo
09:40 - 14:52
SYD
-
SEA
23h 12m
2 stops
Delta Logo
13:32 - 06:05
SEA
-
SYD
22h 33m
2 stops
$1,439Delta
Tue, 10 Mar - Tue, 17 Mar
Asiana Airlines Logo
09:30 - 14:55
SYD
-
SEA
22h 25m
1 stop
Asiana Airlines Logo
00:55 - 19:25
SEA
-
SYD
25h 30m
1 stop
$1,440Asiana Airlines
Sun, 31 May - Fri, 26 Jun
Delta Logo
09:15 - 20:28
SYD
-
SEA
28h 13m
1 stop
Delta Logo
09:30 - 06:50
SEA
-
SYD
28h 20m
1 stop
$1,442Delta
Wed, 10 Jun - Mon, 29 Jun
Delta Logo
09:15 - 14:46
SYD
-
SEA
22h 31m
2 stops
Delta Logo
07:20 - 06:50
SEA
-
SYD
30h 30m
1 stop
$1,446Delta
Thu, 23 Apr - Tue, 23 Jun
Asiana Airlines Logo
09:30 - 14:55
SYD
-
SEA
22h 25m
1 stop
Asiana Airlines Logo
00:55 - 19:25
SEA
-
SYD
25h 30m
1 stop
$1,456Asiana Airlines
Sun, 31 May - Fri, 26 Jun
Delta Logo
14:15 - 16:48
SYD
-
SEA
21h 33m
2 stops
Delta Logo
09:40 - 06:05
SEA
-
SYD
26h 25m
1 stop
$1,479Delta
Sat, 21 Feb - Sun, 8 Mar

Philippine Airlines flights from Sydney to Seattle

Our best Philippine Airlines deals on Sydney to Seattle flight tickets
Philippine Airlines
10 Mar
SYD11:35Sydney Kingsford Smith
26h 05m
1 stop
SEA19:40Seattle/Tacoma Intl
17 Mar
SEA22:30Seattle/Tacoma Intl
41h 20m
1 stop
SYD09:50Sydney Kingsford Smith
$1,430
Philippine Airlines
3 June
SYD10:15Sydney Kingsford Smith
26h 50m
1 stop
SEA20:05Seattle/Tacoma Intl
28 June
SEA23:10Seattle/Tacoma Intl
39h 50m
1 stop
SYD08:00Sydney Kingsford Smith
$1,655
Philippine Airlines
3 June
SYD10:15Sydney Kingsford Smith
26h 50m
1 stop
SEA20:05Seattle/Tacoma Intl
28 June
SEA23:10Seattle/Tacoma Intl
39h 50m
1 stop
SYD08:00Sydney Kingsford Smith
$1,665

Delta flights from Sydney to Seattle

Our best Delta deals on Sydney to Seattle flight tickets
Delta
10 Mar
SYD09:40Sydney Kingsford Smith
23h 12m
2 stops
SEA14:52Seattle/Tacoma Intl
17 Mar
SEA13:32Seattle/Tacoma Intl
22h 33m
2 stops
SYD06:05Sydney Kingsford Smith
$1,439
Delta
10 June
SYD09:15Sydney Kingsford Smith
28h 13m
1 stop
SEA20:28Seattle/Tacoma Intl
29 June
SEA09:30Seattle/Tacoma Intl
28h 20m
1 stop
SYD06:50Sydney Kingsford Smith
$1,442
Delta
23 Apr
SYD09:15Sydney Kingsford Smith
22h 31m
2 stops
SEA14:46Seattle/Tacoma Intl
23 June
SEA07:20Seattle/Tacoma Intl
30h 30m
1 stop
SYD06:50Sydney Kingsford Smith
$1,446

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 26 January 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

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 10/3

14:00-19:58

2 stops23h 58m

Seattle/Tacoma Intl

Tue 17/3

17:50-12:35

2 stops24h 45m

$1,229

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 11/3

14:00-18:40

2 stops22h 40m

Seattle/Tacoma Intl

Wed 18/3

11:39-12:35

2 stops30h 56m

$1,372

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 10/3

21:40-05:30

1 stop25h 50m

Seattle/Tacoma Intl

Tue 17/3

17:50-19:45

1 stop31h 55m

$1,384

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 10/3

11:35-19:40

1 stop26h 05m

Seattle/Tacoma Intl

Tue 17/3

22:30-09:50

1 stop41h 20m

$1,430

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 10/3

09:40-14:52

2 stops23h 12m

Seattle/Tacoma Intl

Tue 17/3

13:32-06:05

2 stops22h 33m

$1,439

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 31/5

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Fri 26/6

00:55-19:25

1 stop25h 30m

$1,440

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 10/6

09:15-20:28

1 stop28h 13m

Seattle/Tacoma Intl

Mon 29/6

09:30-06:50

1 stop28h 20m

$1,442

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 23/4

09:15-14:46

2 stops22h 31m

Seattle/Tacoma Intl

Tue 23/6

07:20-06:50

1 stop30h 30m

$1,446

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 31/5

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Fri 26/6

00:55-19:25

1 stop25h 30m

$1,456

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 21/2

14:15-16:48

2 stops21h 33m

Seattle/Tacoma Intl

Sun 8/3

09:40-06:05

1 stop26h 25m

$1,479

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 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 $1,310. If you are unable to visit Seattle during the month of August, then departing from Sydney during the month September is also very affordable. Most momondo users find prices during this month for around $1,374.

How far in advance should I book a flight 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 $1,558 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 $1,317 on momondo.

Can stopping save me money on Sydney to Seattle flights?

You could potentially save up to 1% 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 January 2026, prices for Sydney to Seattle flights are approximately 30% 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

22h 34m

Direct flights

None
The fastest flight from Sydney to Seattle takes 22h 34m
There are no direct flights from Sydney to Seattle. There are no popular flight routes from Sydney to Seattle.
Search flight deals

  • 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 22h 34m.

  • 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
DeltaPriceFrom $703Free cancellationRating
7.9
8,113 reviews
Search Delta flights
Virgin AustraliaPriceFrom $1,089Free cancellationRating
7.6
432 reviews
Search Virgin Australia flights
Alaska AirlinesPriceFrom $1,092Free cancellationRating
8.0
11,792 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $1,107Free cancellationRating
7.1
10,656 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,150Free cancellationRating
7.4
9,199 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $1,186Free cancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
Qantas AirwaysPriceFrom $1,200Free cancellationRating
7.5
977 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,225Free cancellationRating
7.2
11,189 reviews
Search American Airlines flights
Philippine AirlinesPriceFrom $1,238Free cancellationRating
7.3
956 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $1,405Free cancellationRating
8.1
501 reviews
Search Asiana Airlines flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Leavenworth

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

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