SYD - SEA

$553 Find Cheap Flights from Sydney to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Seattle departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$936
Overall average: $968
Multiple Airlines
Mon 2/16Mon 2/23
SYD - SEA • 2 stops
Cheapest one-way
$566
Typical prices: $791-$1,132
Multiple Airlines
Fri 4/24
SYD - SEA • 3 stops
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 16% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Seattle (SYD-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sydney to Seattle

Mon, Feb 16 - Mon, Feb 23
Multiple Airlines Logo
2:00 pm - 7:58 pm
SYD
-
SEA
24h 58m2 stops
Multiple Airlines Logo
3:50 pm - 12:35 pm
SEA
-
SYD
25h 45m2 stops
$936Multiple Airlines
Wed, Mar 25 - Sun, Mar 29
Asiana Airlines Logo
10:20 am - 2:55 pm
SYD
-
SEA
22h 35m1 stop
Asiana Airlines Logo
12:10 am - 8:30 am
SEA
-
SYD
38h 20m1 stop
$937Asiana Airlines
Sat, Feb 14 - Sat, Feb 21
Multiple Airlines Logo
2:00 pm - 8:58 pm
SYD
-
SEA
25h 58m2 stops
Multiple Airlines Logo
4:50 pm - 10:05 pm
SEA
-
SYD
34h 15m2 stops
$958Multiple Airlines
Sun, Feb 15 - Sun, Feb 22
Multiple Airlines Logo
2:00 pm - 5:00 pm
SYD
-
SEA
22h 00m2 stops
Multiple Airlines Logo
3:50 pm - 12:35 pm
SEA
-
SYD
25h 45m2 stops
$986Multiple Airlines
Sun, May 31 - Fri, Jun 26
Asiana Airlines Logo
9:30 am - 2:55 pm
SYD
-
SEA
22h 25m1 stop
Asiana Airlines Logo
12:10 am - 7:30 am
SEA
-
SYD
38h 20m1 stop
$987Asiana Airlines
Sun, May 31 - Fri, Jun 26
Asiana Airlines Logo
9:30 am - 2:55 pm
SYD
-
SEA
22h 25m1 stop
Asiana Airlines Logo
12:10 am - 7:30 am
SEA
-
SYD
38h 20m1 stop
$988Asiana Airlines
Fri, Jan 30 - Sat, Feb 14
Multiple Airlines Logo
6:00 am - 4:47 pm
SYD
-
SEA
29h 47m2 stops
Multiple Airlines Logo
8:14 pm - 12:35 pm
SEA
-
SYD
45h 21m2 stops
$989Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
6:00 am - 5:52 pm
SYD
-
SEA
30h 52m2 stops
Multiple Airlines Logo
10:59 am - 12:35 pm
SEA
-
SYD
30h 36m2 stops
$1,007Multiple Airlines
Fri, Jan 30 - Sat, Feb 14
Qantas Airways Logo
11:20 am - 7:22 pm
SYD
-
SEA
27h 02m1 stop
Qantas Airways Logo
4:50 pm - 9:00 am
SEA
-
SYD
21h 10m1 stop
$1,013Qantas Airways
Mon, Feb 16 - Mon, Feb 23
Air Canada Logo
11:20 am - 7:16 pm
SYD
-
SEA
26h 56m1 stop
Air Canada Logo
5:45 am - 9:35 am
SEA
-
SYD
32h 50m1 stop
$1,016Air Canada
Booking Insights

KAYAK's insights & trends for Sydney to Seattle flights

Get data-powered insights and trends into flights from Sydney to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Sydney to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Seattle is August, where tickets cost $908 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $1,368 and $1,297 respectively.

How far in advance should I book a flight from Sydney to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sydney to Seattle, you should book around 3 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$566
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Sydney to Seattle

When to book flights from Sydney to Seattle

Are your dates flexible? Find out the best times to travel from Sydney to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Seattle

  • Are there any direct flights from Sydney and Seattle?

    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).

  • Where do I go to hire a car at Seattle Airport?

    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.

  • Where are the taxi and ride-share pickup points at the Seattle Airport?

    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.

  • What is the cheapest flight from Sydney to Seattle?

    In the last 3 days, the lowest price for a flight from Sydney to Seattle was $566 for a one-way ticket and $936 for a round-trip.

  • Do I need a passport to fly between Sydney and Seattle?

    Yes

  • Which airports will I be using when flying from Sydney to Seattle?

    When flying out of Sydney you will be using Sydney Kingsford Smith. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Sydney to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Seattle?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Sydney and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Sydney to Seattle, Delta or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Seattle are Delta and Hawaiian Airlines. With an average price for the route of $1,374 and an overall rating of 7.9, Delta is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of $1,517 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Sydney to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Sydney with another airline. Booking your flights between Sydney and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sydney to Seattle

  • Taxis and rideshare providers offer a quick and easy way to get to Sydney Airport (SYD). The trip takes around 20min from the city centre (depending on traffic) and generally costs around A$ 45-55.
  • Sydney’s Kingsford Smith Airport (SYD) has three terminals. However, all international flights depart from Terminal 1, so this is the terminal you’ll need for your flight to Seattle, Washington.
  • Seattle-Tacoma International Airport (SEA) features a range of larger-than-life art installations. It’s worth taking some time to explore creations like The Cathedral and Carbon Veil.

Reviews of the top 4 airlines serving from Sydney to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8024 reviews
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
Airline reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

10.0 ExcellentAnonymous, Dec 2025
DCA - SEA
Read more Delta reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

I went to washroom twice and once there was no toilet seat cover and the other no toilet paper at all. I don't think it was ever replenished or checked before we boarded as it was very early on in the flight.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Alaska was fine as usual. My frustration came with accessing boarding passes. On the first trip, I could only get one to print ans took a picture of the second one. On our return trip, the system was down? Friends who booked directly with Alaska had theirs process. I even tried the 800 number and had others try it too. It said something in Spanish and hung up. The agent at the airport succeeded.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

In Liberia airport 5 min before our departure the airport was closed for takeoff for 30 min. Upon arrival to IAH we didn’t have any available gate and waited taxing another 40 min. As a result we arrived for 1+ h later. The walkway to the passport control in IAH is about 1-2 ml long. After the passport control you have to pass the security check again. Only 3 out of 16 checkpoints were open and the line was enormously long. As a result, even though we supposed to have 2.5 hrs gap in between the flights we missed our transfer. United rebooked us for the next available flight early morning and provided free hotel and meal vouchers through.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

The staff was great and made the long trip easy peasy!

Everything you need to know for your flight from Sydney to Seattle

Information on your arrival and departure airports