SYD - SEA

$628 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 7/6. 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
$814
Typical prices: $1,224-$897
Air Canada
Mon 7/27Tue 8/11
SYD - SEA • 1 stop
Cheapest one-way
$628
Typical prices: $530-$815
Delta
Mon 7/6
SYD - SEA • 2 stops
Top airlines
Cheapest • from $814 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sydney and Seattle. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $1,087 (round-trip)
Shortest trip • 18h 06m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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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, Jul 27 - Tue, Aug 11
Air Canada Logo
9:20 am - 6:32 pm
SYD
-
SEA
26h 12m
1 stop
Air Canada Logo
10:45 am - 7:20 am
SEA
-
SYD
27h 35m
1 stop
$814Air Canada
Mon, Jul 27 - Tue, Aug 11
Multiple Airlines Logo
9:20 am - 6:32 pm
SYD
-
SEA
26h 12m
1 stop
Multiple Airlines Logo
7:20 pm - 11:40 am
SEA
-
SYD
23h 20m
2 stops
$829Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
Air Canada Logo
9:20 am - 9:52 am
SYD
-
SEA
17h 32m
1 stop
Air Canada Logo
3:00 pm - 8:20 am
SEA
-
SYD
23h 20m
1 stop
$850Air Canada
Tue, Sep 8 - Tue, Oct 6
Air Canada Logo
9:20 am - 2:22 pm
SYD
-
SEA
22h 02m
1 stop
Air Canada Logo
7:20 pm - 8:20 am
SEA
-
SYD
19h 00m
1 stop
$856Air Canada
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
6:00 am - 9:52 am
SYD
-
SEA
20h 52m
2 stops
Multiple Airlines Logo
3:00 pm - 8:20 am
SEA
-
SYD
23h 20m
1 stop
$859Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
6:00 am - 9:52 am
SYD
-
SEA
20h 52m
2 stops
Multiple Airlines Logo
10:30 am - 8:20 am
SEA
-
SYD
27h 50m
1 stop
$860Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
Air Canada Logo
10:20 am - 2:37 pm
SYD
-
SEA
22h 17m
1 stop
Air Canada Logo
3:15 pm - 9:35 am
SEA
-
SYD
23h 20m
1 stop
$862Air Canada
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
6:00 am - 9:52 am
SYD
-
SEA
20h 52m
2 stops
Multiple Airlines Logo
3:00 pm - 8:20 am
SEA
-
SYD
23h 20m
1 stop
$865Multiple Airlines
Tue, Sep 15 - Wed, Sep 23
Multiple Airlines Logo
6:00 am - 9:52 am
SYD
-
SEA
20h 52m
2 stops
Multiple Airlines Logo
3:00 pm - 7:20 am
SEA
-
SYD
23h 20m
1 stop
$870Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
Multiple Airlines Logo
6:20 am - 9:17 am
SYD
-
SEA
20h 57m
2 stops
Multiple Airlines Logo
7:05 pm - 9:35 am
SEA
-
SYD
19h 30m
1 stop
$872Multiple 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 July.

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 September, where tickets cost $864 (return) on average. On the other hand, the most expensive months are January and July, where the average cost of round-trip tickets is $1,294 and $1,175 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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$628
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 14% increase in price.
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 5 days, the lowest price for a flight from Sydney to Seattle was $628 for a one-way ticket and $814 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?

    Star Alliance is the only airline alliance operating flights between Sydney and Seattle.

  • Which is the best airline for flights from Sydney to Seattle, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Sydney to Seattle are United Airlines and Air Canada. With an average price for the route of $1,362 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $1,062 and an overall rating of 7.1.

  • 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 airlines flying 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.
7.4
United AirlinesOverall score based on 9781 reviews
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

8.0 ExcellentJane, Jun 2026
YYZ - DEN
Read more United Airlines reviews

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

gave me complimentary food as the flight was not full and was attentive to my needs

It was a nice and smooth trip. Gave a friendly environment throughout the journey.

Meal and drink service was good. Old plane with old business class seats were quite disappointing

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Pretzels were a bit dry and dusty, however it is nice to have a choice between sweet and savory snacks.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

Never flown with Air Canada before, but it's now a top choice! Loved it!

Horrible crew, horrible seats configuration, ridiculous space in the toilets, Air Canada is no longer a option.

Crew at gate and onboard were just very OK, not very friendly and honestly seemed bothered to be there. I will give a shout out to still selling headphones for those who forgot.

Flight Boarded and departed on time. The Flight crew was very friendly and accommodating. The aircraft was clean and free from clutter and debris. I will be happy to recommend Air Canada to my friends and relatives for their flight needs. They were very attentive and responsive to our needs as Senior citizens.

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

Information on your arrival and departure airports