$621 Find Cheap Flights from Sydney to Seattle – Compare and Save

Four cabin classes are available on flights from Sydney to Seattle:

• Economy class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A direct flight from Sydney to Seattle takes 00m, covering 20,057 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Sydney to Seattle range from $1,425 to $1,838, with an average of $1,561 over the past 12 months. Anything below $1,425 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 24% above the $1,561 route average. Book 17 weeks before departure for the lowest fares.

One-way fares from Sydney to Seattle are currently higher than usual. Average one-way flight prices are about $1,164, which is 12% above the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around $5 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

Flights from Sydney to Seattle usually depart from Sydney Kingsford Smith (SYD) and arrive at Seattle/Tacoma Intl (SEA).

One-stop flights from Sydney to Seattle most commonly connect through:

• Vancouver Intl (YVR) – 41% of one-stop connections
• Los Angeles (LAX) – 25% of one-stop connections
• San Francisco (SFO) – 17% of one-stop connections
• Honolulu (HNL) – 11% of one-stop connections

Yes. Flexible dates can save you up to 16% on flights from Sydney to Seattle. Tuesday is the cheapest departure day at $1,482 return on average, while Saturday is the most expensive at $1,751, a difference of $269.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Flying via Honolulu (HNL) gives the shortest average 1-stop total travel time of 18h 24m, compared to 18h 40m via Vancouver Intl (YVR) and 19h 14m via San Francisco (SFO).

Seattle is 18 hours behind Sydney (Pacific Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Seattle are Lumen Field, Space Needle, and McCaw Hall. These are among the most viewed places in Seattle on KAYAK.

There aren’t any airlines offering direct flights from Sydney to Seattle. However, you will find that most of the itineraries come with just one stop along the way. Where you stop will depend on the airline you fly with. For example, flights with Qatar Airways come with a stop at Hamad International Airport (DOH) in Doha. Flights with Qantas, United, or American Airlines generally come with a stop in a US city like Los Angeles (LAX) or Honolulu (HNL).

The Seattle-Tacoma International Airport has an off-site facility dedicated to hire cars. This is located a 5min drive from the airport and there are free shuttles operating 24h a day, all throughout the year. You will find the pick-up zone for the shuttle just outside the baggage claim level in the international arrivals hall.

App-based ride-share operators and taxis pick up passengers from the third floor of the parking garage. You should find the taxis on the north and south curbs. If you’re meeting a ride-share operator, they’ll generally head to rows G through J (the orange and purple sections) of this level of the garage. To get to this parking garage, you’ll need to cross the skybridge located one level up from baggage claim. Once you’re over the bridge, you’ll need to go back down a level to get to the third floor.

With around 17 hours in the air and at least one stopover, extra comfort will go a long way on this route. Qantas offers a 'Bid Now' upgrade service. This allows you to make a bid in either points, cash or a combination of both. You can set how much you're willing to pay for an upgrade and you'll receive an email 24 hours later letting you know if it's been successful.

Both Air Canada and Air New Zealand have a stopover in Vancouver for most of their flights from Sydney to Seattle. Qantas flights usually stop in Honolulu, but some flights stop in San Francisco. American Airlines flights stop at either Los Angeles Airport (LAX) or Dallas/Fort Worth (DFW).

There are multiple lounges at Sydney Airport and if you're a member of any frequent flyer programs you may get complimentary access to one or more. Qantas, Air New Zealand and Emirates all have their own lounges available to business passengers and some frequent flyers. The Centurion Lounge is open to eligible American Express card holders.

Most airlines on this route, including Qantas and Air Canada allow you to bring one piece of checked luggage, weighing up to 23 kg. Asiana Airlines and Korean Airlines allow you to bring two 23 kg suitcases on their U.S. routes. You can usually book extra luggage online to avoid higher fees.