SYD - SEA

$430 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 2/6. 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
$932
Typical prices: $880-$1,034
Multiple Airlines
Tue 2/3Wed 2/18
SYD - SEA • 2 stops
Cheapest one-way
$430
Typical prices: $714-$953
Multiple Airlines
Fri 2/6
SYD - SEA • 2 stops
Top airlines
Hawaiian Airlines
Cheapest • from $919 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 13% 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

Tue, Feb 3 - Wed, Feb 18
Multiple Airlines Logo
9:40 pm - 6:44 am
SYD
-
SEA
28h 04m2 stops
Multiple Airlines Logo
6:30 pm - 7:45 pm
SEA
-
SYD
30h 15m2 stops
$932Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Hawaiian Airlines Logo
9:40 pm - 5:24 am
SYD
-
SEA
26h 44m1 stop
Hawaiian Airlines Logo
9:55 am - 7:45 pm
SEA
-
SYD
38h 50m1 stop
$936Hawaiian Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
6:00 am - 8:10 pm
SYD
-
SEA
33h 10m2 stops
Multiple Airlines Logo
12:01 pm - 10:05 pm
SEA
-
SYD
39h 04m2 stops
$948Multiple Airlines
Fri, Mar 13 - Tue, Mar 17
Alaska Airlines Logo
9:40 pm - 9:42 pm
SYD
-
SEA
18h 02m1 stop
Alaska Airlines Logo
5:50 pm - 7:45 pm
SEA
-
SYD
31h 55m1 stop
$965Alaska Airlines
Tue, Feb 3 - Wed, Feb 18
Multiple Airlines Logo
9:40 pm - 5:24 am
SYD
-
SEA
26h 44m1 stop
Multiple Airlines Logo
6:30 pm - 7:45 pm
SEA
-
SYD
30h 15m2 stops
$977Multiple Airlines
Sun, Feb 8 - Tue, Feb 24
Multiple Airlines Logo
9:40 pm - 6:11 am
SYD
-
SEA
27h 31m2 stops
Multiple Airlines Logo
5:50 pm - 7:45 pm
SEA
-
SYD
30h 55m1 stop
$980Multiple Airlines
Sun, Feb 15 - Fri, Feb 27
Alaska Airlines Logo
9:40 pm - 7:44 am
SYD
-
SEA
29h 04m1 stop
Alaska Airlines Logo
7:00 am - 7:45 pm
SEA
-
SYD
17h 45m1 stop
$983Alaska Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
9:40 pm - 6:11 am
SYD
-
SEA
27h 31m2 stops
Multiple Airlines Logo
3:45 pm - 7:45 pm
SEA
-
SYD
33h 00m1 stop
$985Multiple Airlines
Sun, May 31 - Fri, Jun 26
Asiana Airlines Logo
9:30 am - 2:55 pm
SYD
-
SEA
22h 25m1 stop
Asiana Airlines Logo
12:55 am - 7:30 am
SEA
-
SYD
37h 35m1 stop
$988Asiana Airlines
Sun, May 31 - Fri, Jun 26
Asiana Airlines Logo
9:30 am - 2:55 pm
SYD
-
SEA
22h 25m1 stop
Asiana Airlines Logo
12:55 am - 7:30 am
SEA
-
SYD
37h 35m1 stop
$990Asiana Airlines
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.

How much is a round-trip flight from Sydney to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Seattle departing in February.

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 $904 (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 $1,285 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 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$430
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 2% 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 $430 for a one-way ticket and $932 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 8025 reviews
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

2.0 MediocreWilliam, Jan 2026
LGA - BOS
Read more Delta reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

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.

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.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

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.

Better entertainment & food options more may be adding chicken option or on vegetarian side good quality pasta

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

Amazing service, with enthusiastic crew members, and some breathtaking views of Vancouver. No IFE though, as it is only a 1 hour flight on a regional Turboprop jet.

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

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

Information on your arrival and departure airports