Flights from Sydney (SYD) to Seattle (SEA)

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Cheapest Flights from Sydney (SYD) to Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun, 1 Mar - Mon, 9 Mar
SYD
Kingsford Smith Intl.
SEA
Seattle - Tacoma Intl.
AU$1,447 Return, found 3 days ago
AU$1,447
Return
found 3 days ago
Select Alaska Airlines flight, departing Sun, 1 Mar from Kingsford Smith Intl. to Seattle - Tacoma Intl., returning Mon, 9 Mar, priced at AU$1,447 found 3 days ago
Air New Zealand
Wed, 5 Nov - Thu, 6 Nov
SYD
Kingsford Smith Intl.
SEA
Seattle - Tacoma Intl.
AU$1,514 Return, found 1 day ago
AU$1,514
Return
found 1 day ago
Select Air New Zealand flight, departing Wed, 5 Nov from Kingsford Smith Intl. to Seattle - Tacoma Intl., returning Thu, 6 Nov, priced at AU$1,514 found 1 day ago
Hawaiian Airlines
Sun, 2 Nov - Wed, 12 Nov
SYD
Kingsford Smith Intl.
SEA
Seattle - Tacoma Intl.
AU$1,548 Return, found 3 days ago
AU$1,548
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Sun, 2 Nov from Kingsford Smith Intl. to Seattle - Tacoma Intl., returning Wed, 12 Nov, priced at AU$1,548 found 3 days ago
Air Canada
Wed, 25 Feb - Mon, 9 Mar
SYD
Kingsford Smith Intl.
SEA
Seattle - Tacoma Intl.
AU$1,653 Return, found 3 days ago
AU$1,653
Return
found 3 days ago
Select Air Canada flight, departing Wed, 25 Feb from Kingsford Smith Intl. to Seattle - Tacoma Intl., returning Mon, 9 Mar, priced at AU$1,653 found 3 days ago
American Airlines
Tue, 4 Nov - Sun, 9 Nov
SYD
Kingsford Smith Intl.
SEA
Seattle - Tacoma Intl.
AU$1,664 Return, found 3 days ago
AU$1,664
Return
found 3 days ago
Select American Airlines flight, departing Tue, 4 Nov from Kingsford Smith Intl. to Seattle - Tacoma Intl., returning Sun, 9 Nov, priced at AU$1,664 found 3 days ago

Best Day to Book Flight from Sydney (SYD) to Seattle (SEA)

Sydney to Seattle Flight Information

Find the Cheapest Flights from Sydney (SYD) to Seattle (SEA)

Work hard, travel harder! Wotif brings you the cheapest Sydney to Seattle flights, making it possible to have a five star holiday without that five star price tag. Browse and compare our top SYD to SEA routes and airport options. So, go ahead and treat yourself, your sweetheart, or the kids to an unforgettable holiday this year.

to Information

Traveling From
Kingsford Smith Intl.
Origin Airport
Origin Airport IATA Code
SYD
Traveling To
Seattle - Tacoma Intl.
Destination Airport
Destination Airport IATA Code
SEA
Number of Airlines Serving
Average Flight Time
 hours mins
Direct Flight Time
 hours mins
Flight Price
AU$1,447

Frequently asked questions

How long is the flight from SYD to SEA?
The trip from Sydney to SeaTac takes a huuuge 18 hours and 58 minutes. We won't pull your leg — you're in for a long one. Bring a novel and load your phone up with podcasts to help kill the time.
What airlines fly direct from Sydney Airport to Sea-Tac Airport?
Sydney and SeaTac aren't connected by direct flights. However, Qantas, Alaska Airlines and American Airlines can get you to where you need to go. These airlines operate services from Mascot Airport to Seattle - Tacoma Intl. Airport (SEA) with only one stopover.
What are the cheapest days to fly?
Here's an insider tip: Monday is typically the cheapest day to fly! Looking at flight demand on Wotif in 2021, we found that flights departing on a Monday generally had the lowest average price, closely followed by flights on a Saturday. You might want to think twice about flying on a Thursday though; generally, our data showed that it had the highest average ticket price.
What is the best day to buy a plane ticket?
Guess what? It turns out that early in the week is the best time to score the cheapest plane tickets. Looking at flight demand on Wotif in 2021, we found that flights purchased on a Monday had the lowest airfares on average. Booking your plane ticket on the weekend also seems to score pretty good deals. However, airfares purchased on a Friday generally have a higher than average ticket value, so you might want to prepare your budget if you're booking on that day.
What is the cheapest month to fly?
When comparing airfares booked through Wotif in 2021, our data shows February is one of the cheapest months to fly. On the other hand, the month of December can be one of the most expensive times to travel, with the highest average ticket price, so it's best to get in early if December is your preferred travel month.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Wotif up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to Wotif's 2021 flight demand trends, you can bag a bargain with some of the cheapest airfares appearing just 1 week prior to travel.*According to flight demand on Wotif.com from January to December 2021. Savings are subject to change and may vary depending on selections made.
Address:
Seattle WA, 98158
United States
IATA code:
SEA
Longitude:
-122.301732
Latitude:
47.443839
Time zone:
America/Los_Angeles
Address:
Sydney NSW,
Australia
IATA code:
SYD
Longitude:
151.179898
Latitude:
-33.932922
Time zone:
Australia/Sydney

Sydney to Seattle Flight Deals from AU$1,447

Considering a quick trip to Seattle, but not sure which is the best route for you? Well, you’re in luck! Wotif has done the hard work, so all you need to do is check out these flights from SYD to SEA. With heaps of cheap fares from Sydney, we guarantee you’ll be arriving to your holiday destination in style without emptying your bank account in the process.

It’s easy to book flights to Seattle from Sydney  

For a huge choice of flights, simply enter your travel dates and hit search and we’ll hunt out fantastic deals on one-way, return and multi-city airfares to Seattle from Sydney from 10 different airlines. If you click the ‘direct flights’ box, you see flights that’ll get you to Seattle in just hour(s) and mins, too.   

Snap up great deals on flights to Seattle from Sydney 

Choose from flights a day on average, with prices starting at AU$1,447 and rising to AU$1,664 depending on the cabin class, travel dates, and airline carrier. And if you’re up for a last-minute getaway, you can get great deals on flights from Sydney to Seattle today!  

Find cheap airfares to Seattle from Sydney 

Here are our insider tips for bagging a flight bargain: 

  • Look for midweek flights and late night, early morning arrival and departure times
  • Check out other airports near Sydney and Seattle
  • Avoid peak season (prices tend to be lower in March)
  • Be flexible with your travel dates and you can usually get cheaper options  

Reasons to book your flights to Seattle from Sydney with Wotif

Wotif is a super-easy way to find the best flight for you to Seattle. Get more bang for your buck on flight and hotel or car rental combos and download the free Wotif app to tap into exclusive deals. Book now with Wotif and have a great flight!

 

Great places to stay after flight from Sydney to Seattle

Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd, SeaTac, WA
The price is AU$196 per night from 2 Nov to 3 Nov
AU$196
2 Nov - 3 Nov
includes taxes & fees
Stay at this 3.5-star business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the restaurant ...
9.2/10 Wonderful! (7,757 reviews)
Staff was fabulous

Reviewed on 19 Oct 2025

Coast Gateway Hotel
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard, SeaTac, WA
The price is AU$115 per night from 28 Oct to 29 Oct
AU$115
28 Oct - 29 Oct
includes taxes & fees
Stay at this hotel in SeaTac. Enjoy free WiFi, a free airport shuttle, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7.8/10 Good! (4,726 reviews)
24 hour airport shuttle

Reviewed on 18 Oct 2025

Red Roof Inn Seattle Airport - SEATAC
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

3 out of 5
3100 South 192nd Street, SeaTac, WA
The price is AU$148 per night from 16 Nov to 17 Nov
AU$148
16 Nov - 17 Nov
includes taxes & fees
Stay at this 3-star business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
8.8/10 Excellent! (6,182 reviews)
Great breakfast. Room very clean and clisevto the airport

Reviewed on 22 Oct 2025

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
See all 3,389 properties in Seattle - Tacoma Intl.
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

More Destinations

^Savings based on all package bookings made with Flight + Hotel on Wotif.com from , as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.