Flights from Seattle (SEA) to Sydney (SYD)

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

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.

United
Wed., 29 Jan. - Sun., 16 Feb.
SEA
Seattle - Tacoma Intl.
SYD
Kingsford Smith Intl.
AU$1,520 Return, found 3 days ago
AU$1,520
Return
found 3 days ago
Select United flight, departing Wed., 29 Jan. from Seattle - Tacoma Intl. to Kingsford Smith Intl., returning Sun., 16 Feb., priced at AU$1,520 found 3 days ago
Air Canada
Sat., 22 Mar. - Thu., 10 Apr.
SEA
Seattle - Tacoma Intl.
SYD
Kingsford Smith Intl.
AU$1,636 Return, found 4 days ago
AU$1,636
Return
found 4 days ago
Select Air Canada flight, departing Sat., 22 Mar. from Seattle - Tacoma Intl. to Kingsford Smith Intl., returning Thu., 10 Apr., priced at AU$1,636 found 4 days ago
Alaska Airlines
Tue., 31 Dec. - Tue., 14 Jan.
SEA
Seattle - Tacoma Intl.
SYD
Kingsford Smith Intl.
AU$1,641 Return, found 4 days ago
AU$1,641
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue., 31 Dec. from Seattle - Tacoma Intl. to Kingsford Smith Intl., returning Tue., 14 Jan., priced at AU$1,641 found 4 days ago
Delta
Wed., 26 Feb. - Sat., 15 Mar.
SEA
Seattle - Tacoma Intl.
SYD
Kingsford Smith Intl.
AU$1,651 Return, found 3 days ago
AU$1,651
Return
found 3 days ago
Select Delta flight, departing Wed., 26 Feb. from Seattle - Tacoma Intl. to Kingsford Smith Intl., returning Sat., 15 Mar., priced at AU$1,651 found 3 days ago
Hawaiian Airlines
Thu., 30 Jan. - Tue., 11 Feb.
SEA
Seattle - Tacoma Intl.
SYD
Kingsford Smith Intl.
AU$1,776 Return, found 4 days ago
AU$1,776
Return
found 4 days ago
Select Hawaiian Airlines flight, departing Thu., 30 Jan. from Seattle - Tacoma Intl. to Kingsford Smith Intl., returning Tue., 11 Feb., priced at AU$1,776 found 4 days ago

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

Seattle to Sydney Flight Information

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

Work hard, travel harder! Wotif brings you the cheapest Seattle to Sydney flights, making it possible to have a five star holiday without that five star price tag. Browse and compare our top SEA to SYD 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
Seattle - Tacoma Intl.
Origin Airport
Origin Airport IATA Code
SEA
Traveling To
Kingsford Smith Intl.
Destination Airport
Destination Airport IATA Code
SYD
Number of Airlines Serving
Average Flight Time
 hours mins
Direct Flight Time
 hours mins
Flight Price
AU$1,520

Frequently asked questions

How long is the flight from Seattle - Tacoma Intl. Airport (SEA) to Kingsford Smith Intl. Airport (SYD)?
Remember to pack whatever you need to enjoy your time in the air when jetsetting from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD). Taking an average of 19 hours and 52 minutes, this flight is no small jaunt.
What airlines fly direct from SEA to Sydney Airport?
If you’re headed from SeaTac to Sydney, get ready for a stopover. Alaska Airlines, Qantas and American Airlines will all fly you to your destination with just one change of aircraft. A chance to stretch your cramped legs and go to the loo in a cubicle larger than one cubic meter. Having a layover has its rewards.
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:
Sydney NSW,
Australia
IATA code:
SYD
Longitude:
151.179898
Latitude:
-33.932922
Time zone:
Australia/Sydney
Address:
Seattle WA, 98158
United States
IATA code:
SEA
Longitude:
-122.301732
Latitude:
47.443839
Time zone:
America/Los_Angeles

Seattle to Sydney Flight Deals from AU$1,520

Considering a quick trip to Sydney, 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 SEA to SYD. With heaps of cheap fares from Seattle, 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 Sydney from Seattle  

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 Sydney from Seattle from 10 different airlines. If you click the ‘direct flights’ box, you see flights that’ll get you to Sydney in just hour(s) and mins, too.   

Snap up great deals on flights to Sydney from Seattle 

Choose from flights a day on average, with prices starting at AU$1,520 and rising to AU$1,776 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 Seattle to Sydney today!  

Find cheap airfares to Sydney from Seattle 

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 Seattle and Sydney
  • Avoid peak season (prices tend to be lower in January)
  • Be flexible with your travel dates and you can usually get cheaper options  

Reasons to book your flights to Sydney from Seattle with Wotif

Wotif is a super-easy way to find the best flight for you to Sydney. 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 Seattle to Sydney

Rydges Sydney Airport Hotel
Rydges Sydney Airport Hotel
4 out of 5
8 Arrival Court, Sydney International Airport, Mascot, NSW
The price is AU$200 per night from 25 Nov to 26 Nov
AU$200
includes taxes & fees
25 Nov - 26 Nov
Stay at this 4-star business-friendly hotel in Sydney. Enjoy free WiFi, 2 restaurants, and 2 bars/lounges. Our guests praise the breakfast and the bar in our ...
8.6/10 Excellent! (2,332 reviews)
"Excellent for an overnight stay before an early international flight"

Reviewed on 20 Nov. 2024

Rydges Sydney Airport Hotel
Novotel Sydney International Airport Hotel
Novotel Sydney International Airport Hotel
4 out of 5
22 Levey Street, Wolli Creek, NSW
The price is AU$202 per night from 16 Dec to 17 Dec
AU$202
includes taxes & fees
16 Dec - 17 Dec
Book a stay at this business-friendly hotel in Sydney. Enjoy breakfast (surcharge), 24-hour room service, and parking (surcharge). Our guests praise the breakfast ...
8.4/10 Very Good! (1,000 reviews)
"Very convenient and easy. I was early for check-in but the staff did their best to make the room available as soon as possible. Very friendly, and the room was quiet and safe - excellent black-out curtains. I would discourage dining at their bar, though. I got the confit pork belly, which was tough ..."

Reviewed on 18 Nov. 2024

Novotel Sydney International Airport Hotel
ibis budget Sydney Airport
ibis budget Sydney Airport
2.5 out of 5
5 Ross Smith Avenue, Mascot, NSW
The price is AU$149 per night from 9 Dec to 10 Dec
AU$149
includes taxes & fees
9 Dec - 10 Dec
Stay at this hotel in Sydney. Enjoy free WiFi, parking (surcharge), and a 24-hour front desk. Our guests praise the helpful staff and the clean rooms in our ...
7.2/10 Good! (1,733 reviews)
"Clean and a reasonable rate."

Reviewed on 21 Nov. 2024

ibis budget Sydney Airport
See all 4,330 properties in Kingsford Smith 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.

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^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.