$684 Cheap flights from Seattle - Tacoma Intl. to Kingsford Smith Intl. (SEA to SYD)

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Find The Best Dates To Fly from Seattle - Tacoma Intl. to Kingsford Smith Intl.

Amazing SEA to SYD Flight Deals

The cheapest flights to Kingsford Smith Intl. found within the past 7 days were $940 round trip and $684 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Sep 30 - Sun, Oct 20
SEA
Seattle
SYD
Sydney
$940 Roundtrip, found 2 days ago
$940
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Mon, Sep 30 from Seattle to Sydney, returning Sun, Oct 20, priced at $940 found 2 days ago
Mon, Aug 26 - Tue, Sep 10
SEA
Seattle
SYD
Sydney
$1,010 Roundtrip, found 2 days ago
$1,010
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Aug 26 from Seattle to Sydney, returning Tue, Sep 10, priced at $1,010 found 2 days ago
Tue, Oct 29 - Tue, Nov 12
SEA
Seattle
SYD
Sydney
$1,043 Roundtrip, found 5 hours ago
$1,043
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Tue, Oct 29 from Seattle to Sydney, returning Tue, Nov 12, priced at $1,043 found 5 hours ago
Sun, Sep 8 - Sun, Sep 22
SEA
Seattle
SYD
Sydney
$1,092 Roundtrip, found 3 days ago
$1,092
Roundtrip
found 3 days ago
Select United flight, departing Sun, Sep 8 from Seattle to Sydney, returning Sun, Sep 22, priced at $1,092 found 3 days ago
Tue, Sep 3 - Tue, Sep 10
SEA
Seattle
SYD
Sydney
$1,135 Roundtrip, found 2 hours ago
$1,135
Roundtrip
found 2 hours ago
Select All Nippon Airways flight, departing Tue, Sep 3 from Seattle to Sydney, returning Tue, Sep 10, priced at $1,135 found 2 hours ago
Fri, Nov 1 - Mon, Nov 11
SEA
Seattle
SYD
Sydney
$1,143 Roundtrip, found 3 hours ago
$1,143
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Nov 1 from Seattle to Sydney, returning Mon, Nov 11, priced at $1,143 found 3 hours ago
Sun, Mar 23 - Sun, Mar 30
SEA
Seattle
SYD
Sydney
$1,230 Roundtrip, found 2 hours ago
$1,230
Roundtrip
found 2 hours ago
Select Philippine Airlines flight, departing Sun, Mar 23 from Seattle to Sydney, returning Sun, Mar 30, priced at $1,230 found 2 hours ago
Tue, Sep 24 - Wed, Oct 23
SEA
Seattle
SYD
Sydney
$1,293 Roundtrip, found 5 days ago
$1,293
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 24 from Seattle to Sydney, returning Wed, Oct 23, priced at $1,293 found 5 days ago
Mon, Sep 2 - Tue, Sep 24
PAE
Seattle Paine Field Intl. Airport
SYD
Sydney
$1,293 Roundtrip, found 1 day ago
$1,293
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Sep 2 from Seattle Paine Field Intl. Airport to Sydney, returning Tue, Sep 24, priced at $1,293 found 1 day ago
Sun, Aug 18 - Mon, Aug 26
SEA
Seattle
SYD
Sydney
$1,306 Roundtrip, found 6 days ago
$1,306
Roundtrip
found 6 days ago
Select Air New Zealand flight, departing Sun, Aug 18 from Seattle to Sydney, returning Mon, Aug 26, priced at $1,306 found 6 days ago

Frequently asked questions

Are there direct flights from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD)?
Air New Zealand, United Airlines and Virgin Atlantic will get you to Sydney from Seattle with only one stopover. Unfortunately, there are no direct flights between Seattle - Tacoma Intl. Airport (SEA) and Kingsford Smith Intl. Airport (SYD) as yet.
How long is the flight from SEA to Sydney Airport?
The journey time between Seattle and Sydney is usually around 21 hours and 47 minutes — long enough to affect anyone’s body clock. Take note of the time difference and make sure you get some sleep on this long-haul flight to ward off jet lag.
What is the flight distance from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD)?
The flight distance from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD) is 7,800 mi. Travel pillow? Check. Moisturizing spray? Double check. You’ll want all the carry-on basics for this journey.
What airlines fly from Sea-Tac Airport to SYD?
Right now, no airline flies direct to Kingsford Smith Intl. Airport (SYD) from Sea-Tac Airport. Making your way there involves at least one stopover. Lock in your airfare in advance to nab the best price and connections.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
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 Travelocity 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 our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Seattle - Tacoma Intl.
Traveling To
Kingsford Smith Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$940

Route Info

Flight path for flights from Seattle-Tacoma International Airport to Sydney (Kingsford Smith) Airport.


Origin:
SEA - Seattle-Tacoma International Airport
Destination:
SYD - Sydney (Kingsford Smith) Airport
Distance:
8,496.00 miles


Discover our best flights from Seattle SEA to Sydney SYD. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Seattle SEA to Sydney SYD at the right price  

Airfares to Sydney SYD from Seattle SEA currently cost between $940 and $1,306. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Seattle SEA to Sydney SYD 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to Sydney SYD on Travelocity starting at $684. Prices and availability subject to change. Additional terms may apply. 

 

Get to Sydney SYD from Seattle SEA quicker with direct flights. 

Get to Sydney faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SYD from SEA to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Seattle SEA to Sydney SYD

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SYD from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Seattle SEA to Sydney SYD today 

If you’re flexible about when you travel, September is usually the cheapest month to fly from Seattle SEA to Sydney SYD. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Sydney SYD from Seattle SEA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SYD from SEA have this option.  

 

Travel with confidence when you book flights to Sydney SYD from Seattle SEA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.