CA $560 Cheap Flights from Seattle (SEA) to Sydney (SYD)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Sydney Airport (SYD)

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Cheap flights from Seattle (SEA) to Sydney (SYD)

Prices were available within the past 7 days and start at CA $560 for one-way flights and CA $1,129 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
All Nippon Airways
Air Canada
Cathay Pacific
Qantas Airways
American Airlines
Hawaiian Airlines
Alaska Airlines
Delta
United

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Find the cheapest month to fly from Seattle (SEA) to Sydney (SYD)

May is typically the cheapest month to fly

From CA $873 - CA $1,719 per traveller.
Flight from Seattle to Sydney (SEA - SYD) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, Emirates, Fiji Airways, Hawaiian Airlines, Korean Air, Philippine Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Roundtrip price
CA $1,128
Distance
12399 km

Seattle to Sydney Flights

The easy way to book your flights from Seattle to Sydney 

With Expedia, it’s simple to find and book flights to Sydney from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Kingsford Smith Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Sydney today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Kingsford Smith Intl., SYD 

Sort your search results by price to find great deals on your flight from Seattle to Sydney—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sydney from Seattle currently is just CA $1,129 rising to CA $1,602.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Sydney  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Sydney from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Sydney with Expedia today.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Sydney Airport?
Start packing your suitcase, because round-trip journeys from Sea-Tac Airport to Sydney Airport start from CA $1,129. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Kingsford Smith Intl. Airport (SYD)?
This can vary between airlines, as each has its own terms and conditions. Head to the Customer Service Portal, where you'll find easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from SEA to Kingsford Smith Intl. Airport (SYD) that have flexible change policies?
Use our "No change fees" filter to find flexible travel options for your flight from Sea-Tac Airport to Mascot Airport. This allows you to secure a great deal ahead of time and still have the freedom to make changes without any additional fees. If the new flight costs more, you'll just cover the difference.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to Kingsford Smith Intl. Airport (SYD)?
The flight time from SEA to Sydney Airport is about 21 hours and 30 minutes. It's is no small journey, so make sure you fill your carry-on bag with whatever you need to be comfortable.
How far is the flight from SEA to SYD?
You'll have 12,500 kilometres to cover on the long-haul SeaTac to Sydney route. Dress in comfy clothes and consider taking a pair of noise-cancelling earphones.
Which airlines fly direct from Sea-Tac Airport to SYD?
If you want to fly straight from SEA to Mascot Airport, you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly on this route.
Are Sea-Tac Airport to Mascot Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from SEA to Mascot Airport last minute could be your ticket to an awesome deal. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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