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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
15 Jan — 22 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 16 December 2025.
Fri 19/1221:40SYD - SEA
1 stop18h 30mMultiple Airlines
Sun 4/107:00SEA - SYD
1 stop17h 45mMultiple Airlines
Deal found 16/12$2,085
Fri 19/1221:40SYD - SEA
1 stop19h 14mHawaiian Airlines
Sat 3/117:50SEA - SYD
1 stop30h 55mHawaiian Airlines
Deal found 16/12$2,104
Fri 19/1211:20SYD - SEA
1 stop17h 11mAir Canada
Sun 4/120:00SEA - SYD
2 stops27h 05mAir Canada
Deal found 16/12$2,442
Tue 23/1221:40SYD - SEA
2 stops26h 20mMultiple Airlines
Wed 7/107:00SEA - SYD
1 stop17h 45mMultiple Airlines
Deal found 14/12$2,478
Fri 19/1211:20SYD - SEA
1 stop22h 11mAir Canada
Sat 3/120:00SEA - SYD
2 stops25h 40mAir Canada
Deal found 16/12$2,567
Fri 19/1221:40SYD - SEA
1 stop18h 30mHawaiian Airlines
Sun 4/107:00SEA - SYD
1 stop17h 45mHawaiian Airlines
Deal found 15/12$2,650
Sat 20/1221:40SYD - SEA
1 stop18h 30mMultiple Airlines
Sat 3/114:40SEA - SYD
1 stop34h 05mMultiple Airlines
Deal found 16/12$2,815
Fri 19/1221:40SYD - SEA
1 stop26h 35mAlaska Airlines
Sat 3/110:05SEA - SYD
1 stop38h 40mAlaska Airlines
Deal found 14/12$2,820
Tue 23/1210:40SYD - SEA
2 stops24h 53mDelta
Wed 7/113:38SEA - SYD
2 stops23h 52mDelta
Deal found 14/12$2,915
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 16 December 2025.
Thu 29/121:40SYD - SEA
1 stop18h 22mHawaiian Airlines
Thu 5/215:45SEA - SYD
1 stop33h 00mHawaiian Airlines
Deal found 15/12$1,425
Thu 29/121:40SYD - SEA
2 stops26h 24mMultiple Airlines
Thu 5/207:00SEA - SYD
1 stop17h 45mMultiple Airlines
Deal found 15/12$1,449
Sun 31/509:30SYD - SEA
1 stop22h 25mAsiana Airlines
Fri 26/600:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 15/12$1,473
Thu 29/121:40SYD - SEA
1 stop18h 22mAlaska Airlines
Thu 5/207:00SEA - SYD
1 stop17h 45mAlaska Airlines
Deal found 15/12$1,524
Wed 11/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Sun 15/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Sun 8/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Mon 16/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Wed 11/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Wed 11/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Sat 7/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Mon 16/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Fri 6/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Sun 15/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Mon 9/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Mon 16/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 16/12$1,476
Sat 16/509:30SYD - SEA
1 stop22h 25mAsiana Airlines
Sat 30/500:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 15/12$1,506
Last-minute flights from Sydney to Seattle
Discover last-minute flight deals from Sydney to Seattle. Data last updated 16 December 2025 and is based on user searches.
Sat 24/115:55SYD - SEA
2 stops39h 34mMultiple Airlines
Wed 28/115:57SEA - SYD
2 stops30h 43mMultiple Airlines
Deal found 16/12$1,402
Mon 26/121:40SYD - SEA
1 stop26h 44mHawaiian Airlines
Thu 5/217:45SEA - SYD
1 stop31h 00mHawaiian Airlines
Deal found 13/12$1,426
Mon 26/121:40SYD - SEA
2 stops26h 24mMultiple Airlines
Thu 5/218:59SEA - SYD
2 stops29h 46mMultiple Airlines
Deal found 13/12$1,432
Wed 28/121:40SYD - SEA
2 stops26h 24mMultiple Airlines
Wed 4/218:59SEA - SYD
2 stops29h 46mMultiple Airlines
Deal found 13/12$1,341
Wed 28/121:40SYD - SEA
1 stop18h 20mHawaiian Airlines
Wed 4/215:45SEA - SYD
1 stop33h 00mHawaiian Airlines
Deal found 13/12$1,499
Thu 29/121:40SYD - SEA
1 stop18h 22mHawaiian Airlines
Thu 5/215:45SEA - SYD
1 stop33h 00mHawaiian Airlines
Deal found 15/12$1,425
Thu 29/121:40SYD - SEA
1 stop18h 22mAlaska Airlines
Thu 5/207:00SEA - SYD
1 stop17h 45mAlaska Airlines
Deal found 15/12$1,524
Fri 30/114:00SYD - SEA
2 stops21h 47mMultiple Airlines
Fri 6/217:59SEA - SYD
2 stops23h 36mMultiple Airlines
Deal found 16/12$1,505
Fri 30/121:40SYD - SEA
1 stop26h 44mAlaska Airlines
Fri 6/207:00SEA - SYD
1 stop17h 45mAlaska Airlines
Deal found 16/12$1,575
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 16 December 2025.
Fri 16/117:00SYD - SEA
2 stops38h 29mMultiple Airlines
Deal found 15/12$862
Wed 29/413:10SYD - SEA
2 stops22h 44mMultiple Airlines
Deal found 15/12$934
Mon 29/1211:20SYD - SEA
1 stop26h 56mAir Canada
Deal found 15/12$1,008
Sat 27/1216:00SYD - SEA
1 stop17h 31mAir Canada
Deal found 16/12$1,053
Wed 29/409:10SYD - SEA
1 stop20h 46mQantas Airways
Deal found 16/12$1,080
Fri 16/110:20SYD - SEA
1 stop22h 35mAsiana Airlines
Deal found 15/12$1,136
Mon 29/1219:15SYD - SEA
3 stops52h 45mMultiple Airlines
Deal found 15/12$1,344
Wed 29/419:25SYD - SEA
3 stops45h 43mAir Tahiti Nui
Deal found 15/12$1,351
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 16 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 16 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 29/1
21:40-21:02
1 stop18h 22m
Seattle/Tacoma Intl
Thu 5/2
15:45-19:45
1 stop33h 00m
$1,425
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 29/1
21:40-05:04
2 stops26h 24m
Seattle/Tacoma Intl
Thu 5/2
07:00-19:45
1 stop17h 45m
$1,449
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
Wed 11/3
10:20-14:55
1 stop22h 35m
Seattle/Tacoma Intl
Sun 15/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sun 8/3
10:20-13:55
1 stop22h 35m
Seattle/Tacoma Intl
Mon 16/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Wed 11/3
10:20-14:55
1 stop22h 35m
Seattle/Tacoma Intl
Wed 11/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sat 7/3
10:20-13:55
1 stop22h 35m
Seattle/Tacoma Intl
Mon 16/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Fri 6/3
10:20-13:55
1 stop22h 35m
Seattle/Tacoma Intl
Sun 15/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Mon 9/3
10:20-14:55
1 stop22h 35m
Seattle/Tacoma Intl
Mon 16/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sat 16/5
09:30-14:55
1 stop22h 25m
Seattle/Tacoma Intl
Sat 30/5
00:10-07:30
1 stop38h 20m
$1,506
Flights are sorted by cheapest return flights first.
Deals found on 14/12
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 12 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 $1,059). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,311). 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 16 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 $1,019.
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 22m.
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 16 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 Hawaiian Airlines and Asiana Airlines fly from Sydney to Seattle in about 18h 22m. The time it takes to get you to your destination can typically vary by up to 4h 03m. 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 $730, 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 $1,131 and $1,134, 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 $741 and $762 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 $1,059). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,311). 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 16 December 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 16 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 16 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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