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Good to Know: Cheapest and Fastest SEA - SYD Flights
Useful information for finding best airline tickets from Seattle Tacoma International to Sydney Kingsford Smith International on your next trip.
Cheapest Round Trip Flight
$921
United Airlines
• 1 stop
• 40h 39m
Sep 19 – Oct 21
The cheapest round trip flight from Seattle to Sydney (SEA-SYD-SEA) is currently $921
Cheapest One way Flight
$710
Alaska Airlines
• 1 stop
• 55h 35m
Nov 11
The cheapest one way flight from Seattle to Sydney (SEA-SYD) is currently $710
Fastest Flight
31h 40m
The fastest nonstop flight from Seattle to Sydney (SEA-SYD) takes 31h 40m
Latest Flight Deals from Seattle (SEA) to Sydney (SYD)
Compare and book low fare round-trip air tickets from Seattle to Sydney. Ideal for travelers with confirmed return itineraries.
Sep 19 - Oct 21, Economy
Seattle → Sydney
40h 39m
1:16 PM - 6:55 AM • 1 stop
Seattle → Sydney
31h 45m
10:30 AM - 11:35 AM • 1 stop
United Airlines
Sep 19 - Oct 21, Economy
Seattle → Sydney
33h 26m
5:59 PM - 7:05 AM • 1 stop
Seattle → Sydney
31h 43m
6:50 PM - 7:53 PM • 1 stop
Alaska Airlines
Sep 19 - Oct 21, Economy
Seattle → Sydney
31h 40m
5:10 PM - 7:00 AM • 1 stop
Seattle → Sydney
28h 52m
11:55 AM - 6:32 PM • 2 stops
Air New Zealand
Sep 19 - Oct 21, Economy
Seattle → Sydney
33h 51m
- • 1 stop
Seattle → Sydney
31h 59m
- • 1 stop
Qantas Airways
Sep 19 - Oct 21, Economy
Seattle → Sydney
31h 40m
10:30 AM - 7:20 AM • 2 stops
Seattle → Sydney
28h 52m
10:20 AM - 9:52 AM • 1 stop
WestJet Airlines
Explore competitive one-way airfare options for SEA - SYD flights. Best suited for flexible or open-ended travel plans.
FAQs on Seattle to Sydney Flights
What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to SYD?
The most popular airline flying from Seattle to Sydney are
Can I fly from SEA to SYD non-stop?
NO
Which airlines fly nonstop between Seattle and Sydney?
The non-stop flights between Seattle and Sydney are .
What’s the earliest departure time from SEA to SYD Airport?
The earliest flight leaves SEA at 7:45 am and lands in SYD - Sydney Kingsford Smith International
What are the airports in Sydney?
SYD
Can I make changes to my Seattle to Sydney flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SEA to SYD?
Read the fare rules of the Seattle to Sydney air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Seattle and Sydney?
operate flights between Seattle and Sydney
How long does a flight from Seattle to Sydney take?
It takes approximately 16 hour to fly non-stop from SEA to SYD, which is 7739.48 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Sydney (SYD) ?
In the past couple of days, the cheapest tickets to SYD from SEA were found on AS : USD 1240
Do I need a passport to fly between SEA and SYD?
Yes
What’s the latest departure time from SEA to SYD ?
The last flight leaves SEA at 5:5900 pm
Seattle (SEA) to Sydney (SYD): Airport Information
| Origin Airport | Seattle Tacoma International , Seattle, US |
| Destination Airport | Sydney Kingsford Smith International , Sydney, AU |
| Distance | 7739 miles |
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