This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
9 Jan — 16 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in August or September, booked 39 days in advance, depart on a Thursday or Tuesday and return on a Monday
Cheap flight deals from Sydney to Seattle
Enter your travel dates to find the best prices.
Cheapest flights from Sydney to Seattle
Explore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 December 2025.
Thu 11/1216:00SYD - SEA
1 stop36h 31mAir Canada
Mon 29/1220:00SEA - SYD
2 stops41h 10mAir Canada
Deal found 9/12$1,681
Thu 11/1221:40SYD - SEA
1 stop21h 06mHawaiian Airlines
Wed 24/1217:50SEA - SYD
1 stop30h 55mHawaiian Airlines
Deal found 7/12$1,708
Thu 25/1211:20SYD - SEA
1 stop22h 11mAir Canada
Thu 15/115:40SEA - SYD
1 stop20h 15mAir Canada
Deal found 9/12$1,713
Thu 18/1206:20SYD - SEA
2 stops29h 32mMultiple Airlines
Sat 3/107:05SEA - SYD
2 stops44h 10mMultiple Airlines
Deal found 7/12$1,764
Thu 25/1208:30SYD - SEA
2 stops20h 01mMultiple Airlines
Thu 15/105:50SEA - SYD
1 stop30h 05mMultiple Airlines
Deal found 8/12$1,869
Tue 23/1206:20SYD - SEA
2 stops31h 25mMultiple Airlines
Mon 26/119:30SEA - SYD
2 stops30h 15mMultiple Airlines
Deal found 8/12$1,913
Sun 28/1211:20SYD - SEA
1 stop30h 26mMultiple Airlines
Wed 28/105:50SEA - SYD
2 stops39h 25mMultiple Airlines
Deal found 9/12$2,172
Thu 11/1221:40SYD - SEA
2 stops20h 53mAlaska Airlines
Wed 24/1217:50SEA - SYD
1 stop30h 55mAlaska Airlines
Deal found 7/12$2,175
Thu 25/1221:40SYD - SEA
2 stops27h 20mAlaska Airlines
Thu 15/120:50SEA - SYD
2 stops27h 55mAlaska Airlines
Deal found 8/12$2,207
Best flights from Sydney to Seattle
Discover carefully curated flight deals from Sydney to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 December 2025.
Thu 22/121:40SYD - SEA
2 stops26h 24mAlaska Airlines
Wed 4/218:59SEA - SYD
2 stops29h 46mAlaska Airlines
Deal found 9/12$1,335
Mon 16/221:30SYD - SEA
2 stops31h 01mMultiple Airlines
Wed 4/320:00SEA - SYD
2 stops31h 15mMultiple Airlines
Deal found 9/12$1,383
Mon 23/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Sun 29/300:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 8/12$1,423
Thu 5/314:55SYD - SEA
2 stops24h 03mQantas Airways
Mon 9/316:50SEA - SYD
2 stops23h 00mQantas Airways
Deal found 8/12$1,585
Mon 13/409:30SYD - SEA
1 stop22h 25mAsiana Airlines
Tue 12/500:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 7/12$1,472
Sat 24/111:20SYD - SEA
1 stop22h 11mMultiple Airlines
Fri 30/120:00SEA - SYD
2 stops26h 40mMultiple Airlines
Deal found 9/12$1,574
Thu 16/409:30SYD - SEA
1 stop22h 25mAsiana Airlines
Tue 12/500:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 7/12$1,472
Sun 31/509:30SYD - SEA
1 stop22h 25mAsiana Airlines
Fri 26/600:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 8/12$1,473
Last-minute flights from Sydney to Seattle
Discover last-minute flight deals from Sydney to Seattle. Data last updated 10 December 2025 and is based on user searches.
Thu 11/1216:00SYD - SEA
1 stop36h 31mAir Canada
Mon 29/1220:00SEA - SYD
2 stops41h 10mAir Canada
Deal found 9/12$1,681
Thu 11/1221:40SYD - SEA
1 stop21h 06mHawaiian Airlines
Wed 24/1217:50SEA - SYD
1 stop30h 55mHawaiian Airlines
Deal found 7/12$1,708
Thu 22/121:40SYD - SEA
2 stops26h 24mAlaska Airlines
Wed 4/218:59SEA - SYD
2 stops29h 46mAlaska Airlines
Deal found 9/12$1,335
Thu 22/106:20SYD - SEA
2 stops22h 11mMultiple Airlines
Thu 29/120:00SEA - SYD
2 stops31h 15mMultiple Airlines
Deal found 7/12$1,411
Fri 23/106:20SYD - SEA
2 stops31h 56mMultiple Airlines
Fri 30/120:00SEA - SYD
2 stops31h 15mMultiple Airlines
Deal found 9/12$1,436
Sat 24/106:20SYD - SEA
2 stops22h 11mMultiple Airlines
Fri 30/115:40SEA - SYD
2 stops31h 00mMultiple Airlines
Deal found 9/12$1,380
One-way flights from Sydney to Seattle
Search for one-way flight options from Sydney to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 December 2025.
Tue 10/209:35SYD - SEA
2 stops45h 54mMultiple Airlines
Deal found 9/12$783
Sat 24/106:20SYD - SEA
2 stops34h 46mMultiple Airlines
Deal found 8/12$807
Mon 9/213:50SYD - SEA
2 stops41h 39mMultiple Airlines
Deal found 9/12$819
Sun 8/206:20SYD - SEA
2 stops27h 11mMultiple Airlines
Deal found 9/12$827
Thu 15/121:30SYD - SEA
2 stops57h 59mMultiple Airlines
Deal found 7/12$844
Mon 11/509:55SYD - SEA
2 stops30h 34mAir New Zealand
Deal found 9/12$954
Tue 10/211:35SYD - SEA
1 stop26h 05mPhilippine Airlines
Deal found 9/12$967
Thu 18/1209:05SYD - SEA
2 stops28h 38mQantas Airways
Deal found 9/12$1,000
Find flight deals from Sydney to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 December 2025.
Customise your flight search to find flights from Sydney to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 10 December 2025.
Use the filters below to find and compare flights from Sydney to Seattle that are best for you.
Fly from
Sydney
Fly to
Seattle
Route
Depart
Return
Price
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 22/1
21:40-05:04
2 stops26h 24m
Seattle/Tacoma Intl
Wed 4/2
18:59-19:45
2 stops29h 46m
$1,335
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Mon 16/2
21:30-09:31
2 stops31h 01m
Seattle/Tacoma Intl
Wed 4/3
20:00-22:15
2 stops31h 15m
$1,383
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Mon 23/3
10:20-14:55
1 stop22h 35m
Seattle/Tacoma Intl
Sun 29/3
00:10-08:30
1 stop38h 20m
$1,423
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Mon 13/4
09:30-14:55
1 stop22h 25m
Seattle/Tacoma Intl
Tue 12/5
00:10-07:30
1 stop38h 20m
$1,472
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 16/4
09:30-14:55
1 stop22h 25m
Seattle/Tacoma Intl
Tue 12/5
00:10-07:30
1 stop38h 20m
$1,472
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sun 31/5
09:30-14:55
1 stop22h 25m
Seattle/Tacoma Intl
Fri 26/6
00:10-07:30
1 stop38h 20m
$1,473
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sat 24/1
11:20-14:31
1 stop22h 11m
Seattle/Tacoma Intl
Fri 30/1
20:00-17:40
2 stops26h 40m
$1,574
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 5/3
14:55-19:58
2 stops24h 03m
Seattle/Tacoma Intl
Mon 9/3
16:50-09:50
2 stops23h 00m
$1,585
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Tue 10/2
09:35-12:29
2 stops45h 54m
$783
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Mon 9/2
13:50-12:29
2 stops41h 39m
$819
Flights are sorted by cheapest return flights first.
Deals found on 9/12
Showing 1-10 of 18 results
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Best time to book a flight from Sydney to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Sydney to Seattle
Prices
More
How far ahead should I book a flight from Sydney to Seattle?
Use this chart to determine the optimal time to book a return flight from Sydney to Seattle. Price data was last updated on 5 December 2025.
Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Sydney to Seattle?
Currently, June is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,060). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SYD to SEA?
Find hourly flight availability from Sydney to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 December 2025.
One of the essential ways to save on airfare from Sydney to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 18% on airfare.
What is the cheapest day to fly from Sydney to Seattle?
Use this chart to determine the cheapest time to fly return from Sydney to Seattle. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Sydney to Seattle flight should consider departing on Saturday at midday when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
What’s the top stopover airport for flights from Sydney to Seattle?
Share of one-stop return flights from Sydney to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Vancouver (YVR) – chosen by Cheapflights users on 30% of one-stop itineraries from Sydney to Seattle on Cheapflights.
What’s the cheapest stopover airport for flights from Sydney to Seattle?
Average return fare for one-stop flights from Sydney to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Nadi (NAN) is the most affordable one-stop option, with an average return flight price of $1,020.
What’s the fastest stopover option from Sydney to Seattle?
Shortest average travel time for one-stop one-way flights from Sydney to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Nadi (NAN) have the shortest average one-way travel time for one-stop routes: 17h 40m.
Which airport typically offers the quickest stopover for flights from Sydney to Seattle?
Average stopover duration for one-stop one-way flights from Sydney to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average stopover time of 2h 21m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 10 December 2025.
See what other customers who have flown with Delta, Hawaiian Airlines, andQantas Airways from Sydney to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Related info for your journey
Find useful and relevant information for your journey from Sydney to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Sydney to Seattle?
Airlines like Alaska Airlines and Asiana Airlines fly from Sydney to Seattle in about 22h 35m. The time it takes to get you to your destination can typically vary by up to 3h 49m. Airlines will cover a distance of 12463 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Sydney to Seattle round-trip?
Currently priced at $731, Delta will fly you from Sydney to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Australia and Alaska Airlines - these airlines can fly you to your destination from $1,132 and $1,135, respectively. Users have found that Delta is 55% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Sydney to Seattle one-way?
For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $597. Users have also found prices from $742 and $763 on United Airlines and Qantas Airways, respectively.
Where are the most common stopover locations when flying from Sydney to Seattle?
Of the flights from Sydney to Seattle that have stopovers, most of them stop in Vancouver.
Where are the least popular stopover locations for Sydney to Seattle flights?
The least popular stopover on flights from Sydney to Seattle is San Francisco.
Can I find deals for flights from Sydney to Seattle that include hotel bookings?
Yes. In addition to deals on Sydney to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Seattle.
Can I find deals for business class flights from Sydney to Seattle?
Yes. Cheapflights offers flight deals from Sydney to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sydney to Seattle?
Currently, June is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,060). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Book flights to Seattle if you plan to visit one of these locations
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Fly from Sydney to Seattle on these airlines
Choose from the following airlines for your flight from Sydney to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 10 December 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 December 2025.
Discover the top 10 airlines that operate flights from Sydney to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 10 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Sydney to Seattle?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Sydney to Seattle?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Sydney.
Can Cheapflights find flights from Sydney to Seattle with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Seattle flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Sydney to Seattle become cheaper?
Yes, Cheapflights offers price alerts on Sydney to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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