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Cheap flights from Sydney to Seattle / Tacoma International

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Compare Sydney to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Sydney to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best round-trip flight from Sydney to Seattle / Tacoma International? Find the lowest prices on one-way and round-trip tickets right here.
Seattle.$815 per passenger.Departing Thu, Oct 23, returning Thu, Oct 30.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Thu, Oct 23, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Thu, Oct 30, arriving in Sydney.Price includes taxes and charges.From $815, select.
Seattle.$816 per passenger.Departing Mon, Jul 21, returning Mon, Aug 4.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Mon, Jul 21, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Mon, Aug 4, arriving in Sydney.Price includes taxes and charges.From $816, select.
Seattle.$834 per passenger.Departing Mon, Aug 11, returning Mon, Aug 18.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Mon, Aug 11, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Mon, Aug 18, arriving in Sydney.Price includes taxes and charges.From $834, select.
Seattle.$835 per passenger.Departing Thu, Feb 26, returning Thu, Mar 5.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Thu, Feb 26, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Thu, Mar 5, arriving in Sydney.Price includes taxes and charges.From $835, select.
Seattle.$851 per passenger.Departing Thu, Dec 11, returning Wed, Jan 14.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Thu, Dec 11, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Wed, Jan 14, arriving in Sydney.Price includes taxes and charges.From $851, select.
Seattle.$854 per passenger.Departing Wed, Oct 15, returning Sun, Nov 16.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from Sydney on Wed, Oct 15, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departing from Seattle / Tacoma International on Sun, Nov 16, arriving in Sydney.Price includes taxes and charges.From $854, select.
Seattle.$861 per passenger.Departing Tue, Aug 19, returning Mon, Sep 15.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Sydney on Tue, Aug 19, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departing from Seattle / Tacoma International on Mon, Sep 15, arriving in Sydney.Price includes taxes and charges.From $861, select.
Seattle.$861 per passenger.Departing Mon, Sep 8, returning Sun, Sep 21.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Sydney on Mon, Sep 8, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departing from Seattle / Tacoma International on Sun, Sep 21, arriving in Sydney.Price includes taxes and charges.From $861, select.

Find the cheapest month to fly from Sydney to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sydney to Seattle / Tacoma International flights are currently cheapest in October.
Jun
from $862
Jul
from $864
Aug
from $834
Sep
from $861
Oct
from $815
Nov
from $862
Dec
from $951
Jan
from $1,242
Feb
Find prices
Mar
from $877
Apr
from $985
May
from $1,000

Sydney to Seattle / Tacoma International: Alternative routes

Compare routes from Sydney to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Sydney to Seattle: Flight information

The things to know before you go.
Cheapest flight found$815
Cheapest month to flyOctober

Finding cheap flights from Sydney to Seattle / Tacoma International: Frequently asked questions

The best price we found for a round-trip flight from Sydney to Seattle / Tacoma International is $815. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sydney to Seattle / Tacoma International. But we found flights with one or more stops from $815.
There are no flights flying from Sydney to Seattle / Tacoma International, as of June 2025.
The cheapest month to fly from Sydney to Seattle / Tacoma International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sydney Airport to Seattle / Tacoma International Airport on Thursday, October 23, 2025.
No airlines currently offer direct flights between Sydney Airport and Seattle / Tacoma International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Canada offers the cheapest flight tickets to Seattle / Tacoma International.

Flying from Sydney (Kingsford Smith) Airport (SYD) to Seattle-Tacoma International Airport (SEA): what you need to know

  • Seattle is 18 hours behind Sydney and follows the UTC-7 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Make sure you're at the airport on time to catch your SYD to SEA flight.

  • You'll likely experience longer lines in popular months like April. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.

  • If you'd like to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport. These are the top stopovers between SYD and SEA:

    • Daniel K. Inouye International Airport

    • San Francisco International Airport

    • Vancouver International Airport

How to find the cheapest flights from Sydney (Kingsford Smith) Airport (SYD) to Seattle-Tacoma International Airport (SEA)

  • At the moment, $448 is the lowest price we've seen for a one-way Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport flight. The best price for a return ticket is $815. Remember that fares may change due to demand when booking.

  • It's often best to book early if you're hoping to get cheap tickets from SYD to SEA. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • Finding cheap flights from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport is easy if you can be flexible with your travel plans. Use the 'Whole month' tool to see the best prices across the month and bag a great deal.

  • Never miss a deal on cheap flights from SYD to SEA by setting up a Price Alert. You'll receive an email or push notification on the app when a new low fare is offered.

  • Choose your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport.

Handy information about Sydney (Kingsford Smith) Airport (SYD)

  • 69.62% of flights that leave from Sydney (Kingsford Smith) Airport arrive at their destination on schedule.

  • Central Sydney to Sydney (Kingsford Smith) Airport is around 18 kilometers. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Expect a journey time of roughly 25 minutes on public transport.

  • Get your break off to a stress-free start by staying near SYD. Whether you've booked an early flight from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport or just don't like being rushed, these stays are perfect:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Seattle-Tacoma International Airport is roughly 23 kilometers from central Seattle. Driving there takes about 20 minutes.

  • It typically takes 55 minutes if you're traveling by public transport.

When to fly to Seattle-Tacoma International Airport (SEA)

  • The quietest month for a flight from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport is May, while July is the busiest. Pick the best time to visit Seattle based on whether you prefer a faster pace or a more relaxed vibe.

  • Book your flight from Sydney (Kingsford Smith) Airport to Seattle-Tacoma International Airport for August if you want to go to Seattle during its warmest month. You can expect temperatures of between 12ºC (54ºF) and 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for cheap tickets from SYD to SEA sometime then if you like cooler conditions.

Explore more of United States

  • You've done Seattle, now it's time to discover other parts of United States. Travel around 241 kilometers south to Portland to check off its top sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, your itinerary will be busy.

  • Around 370 kilometers east of Seattle, Spokane is another essential stop in United States. Start your sightseeing at Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Plan the rest of your trip from Sydney to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.