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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
14 Dec — 21 Dec1
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
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 14 November 2025.
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 14 November 2025.
Thu 4/1209:55SYD - SEA
2 stops27h 37mAir New Zealand
Sun 14/1215:40SEA - SYD
2 stops23h 50mAir New Zealand
Deal found 13/11$1,517
Thu 4/1213:55SYD - SEA
3 stops26h 05mMultiple Airlines
Sun 14/1215:45SEA - SYD
2 stops23h 45mMultiple Airlines
Deal found 13/11$1,711
Thu 4/1213:55SYD - SEA
2 stops26h 05mAir New Zealand
Sun 21/1205:50SEA - SYD
2 stops31h 55mAir New Zealand
Deal found 11/11$1,723
Thu 4/1213:55SYD - SEA
3 stops26h 05mMultiple Airlines
Sun 21/1215:40SEA - SYD
2 stops22h 05mMultiple Airlines
Deal found 11/11$1,860
Thu 11/1211:20SYD - SEA
1 stop22h 04mQantas Airways
Thu 1/106:00SEA - SYD
2 stops33h 55mQantas Airways
Deal found 12/11$1,911
Thu 4/1211:20SYD - SEA
1 stop26h 00mQantas Airways
Sun 14/1206:25SEA - SYD
2 stops34h 50mQantas Airways
Deal found 13/11$1,952
Thu 20/1113:55SYD - SEA
2 stops25h 03mQantas Airways
Fri 28/1106:05SEA - SYD
1 stop31h 55mQantas Airways
Deal found 12/11$2,066
Thu 4/1221:40SYD - SEA
1 stop28h 57mHawaiian Airlines
Sun 14/1214:40SEA - SYD
1 stop34h 05mHawaiian Airlines
Deal found 13/11$2,091
Thu 11/1211:20SYD - SEA
1 stop30h 26mMultiple Airlines
Fri 26/1220:00SEA - SYD
2 stops25h 15mMultiple Airlines
Deal found 13/11$2,092
Thu 4/1211:20SYD - SEA
1 stop28h 15mQantas Airways
Sun 21/1206:00SEA - SYD
2 stops34h 35mQantas Airways
Deal found 11/11$2,104
Thu 11/1216:00SYD - SEA
1 stop17h 31mAir Canada
Fri 26/1220:00SEA - SYD
1 stop18h 35mAir Canada
Deal found 13/11$2,139
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 14 November 2025.
Fri 1/509:10SYD - SEA
1 stop30h 39mAmerican Airlines
Wed 6/506:05SEA - SYD
1 stop32h 00mAmerican Airlines
Deal found 12/11$1,355
Thu 30/409:30SYD - SEA
1 stop22h 25mAsiana Airlines
Mon 4/500:10SEA - SYD
1 stop38h 20mAsiana Airlines
Deal found 12/11$1,474
Thu 30/406:00SYD - SEA
2 stops33h 08mMultiple Airlines
Thu 7/523:05SEA - SYD
1 stop41h 40mMultiple Airlines
Deal found 13/11$1,552
Wed 11/311:35SYD - SEA
1 stop26h 05mPhilippine Airlines
Sun 15/322:30SEA - SYD
1 stop41h 20mPhilippine Airlines
Deal found 11/11$1,573
Wed 11/317:30SYD - SEA
2 stops21h 28mQantas Airways
Sun 15/316:50SEA - SYD
2 stops26h 10mQantas Airways
Deal found 12/11$1,576
Wed 11/307:30SYD - SEA
2 stops20h 01mAir Canada
Sun 15/320:00SEA - SYD
1 stop18h 35mAir Canada
Deal found 11/11$1,689
Thu 30/409:25SYD - SEA
1 stop44h 33mDelta
Mon 4/514:00SEA - SYD
1 stop23h 35mDelta
Deal found 12/11$1,746
Wed 11/310:20SYD - SEA
1 stop22h 35mAsiana Airlines
Sat 14/300:10SEA - SYD
1 stop38h 10mAsiana Airlines
Deal found 12/11$1,476
Sun 1/307:00SYD - SEA
2 stops30h 57mMultiple Airlines
Wed 4/321:30SEA - SYD
1 stop42h 15mMultiple Airlines
Deal found 13/11$1,676
Sun 1/311:20SYD - SEA
1 stop17h 11mAir Canada
Wed 4/320:00SEA - SYD
1 stop18h 35mAir Canada
Deal found 13/11$1,724
Wed 29/409:25SYD - SEA
1 stop42h 07mDelta
Tue 5/518:55SEA - SYD
1 stop18h 40mDelta
Deal found 12/11$1,746
Wed 29/409:25SYD - SEA
1 stop18h 07mDelta
Mon 4/518:55SEA - SYD
1 stop18h 40mDelta
Deal found 12/11$1,746
Last-minute flights from Sydney to Seattle
Discover last-minute flight deals from Sydney to Seattle. Data last updated 14 November 2025 and is based on user searches.
Tue 18/1111:20SYD - SEA
1 stop19h 19mUnited Airlines
Tue 18/1123:59SEA - SYD
1 stop36h 01mUnited Airlines
Deal found 11/11$2,405
Tue 18/1121:40SYD - SEA
1 stop17h 29mAlaska Airlines
Tue 18/1123:10SEA - SYD
2 stops25h 35mAlaska Airlines
Deal found 13/11$2,698
Thu 20/1113:55SYD - SEA
2 stops25h 03mQantas Airways
Fri 28/1106:05SEA - SYD
1 stop31h 55mQantas Airways
Deal found 12/11$2,066
Thu 20/1116:10SYD - SEA
1 stop34h 00mSingapore Airlines
Fri 28/1108:45SEA - SYD
1 stop32h 05mSingapore Airlines
Deal found 12/11$2,193
Thu 20/1121:40SYD - SEA
2 stops20h 56mAlaska Airlines
Fri 28/1107:00SEA - SYD
1 stop17h 45mAlaska Airlines
Deal found 13/11$2,207
Thu 20/1115:15SYD - SEA
2 stops42h 40mCathay Pacific
Fri 28/1119:56SEA - SYD
2 stops42h 39mCathay Pacific
Deal found 12/11$2,217
Thu 20/1110:20SYD - SEA
1 stop22h 35mAsiana Airlines
Thu 27/1100:10SEA - SYD
1 stop37h 10mAsiana Airlines
Deal found 12/11$2,391
Thu 20/1107:05SYD - SEA
3 stops28h 51mAir Tahiti Nui
Fri 28/1117:47SEA - SYD
3 stops28h 53mAir Tahiti Nui
Deal found 12/11$3,447
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 14 November 2025.
Fri 20/206:20SYD - SEA
2 stops34h 46mMultiple Airlines
Deal found 12/11$743
Tue 27/106:20SYD - SEA
2 stops34h 46mMultiple Airlines
Deal found 11/11$755
Mon 2/209:00SYD - SEA
2 stops30h 52mMultiple Airlines
Deal found 13/11$790
Sun 1/209:00SYD - SEA
2 stops22h 29mMultiple Airlines
Deal found 11/11$798
Thu 15/120:00SYD - SEA
2 stops45h 46mMultiple Airlines
Deal found 13/11$841
Fri 16/107:00SYD - SEA
2 stops34h 46mMultiple Airlines
Deal found 13/11$842
Sat 17/108:30SYD - SEA
2 stops46h 59mMultiple Airlines
Deal found 13/11$845
Fri 21/1117:00SYD - SEA
2 stops22h 23mQantas Airways
Deal found 13/11$859
Sun 18/107:05SYD - SEA
2 stops29h 47mQantas Airways
Deal found 13/11$873
Tue 28/412:15SYD - SEA
2 stops44h 55mMultiple Airlines
Deal found 12/11$893
Wed 14/113:55SYD - SEA
2 stops46h 57mQantas Airways
Deal found 13/11$911
Fri 1/506:00SYD - SEA
2 stops31h 59mMultiple Airlines
Deal found 12/11$929
Cheapflights Fare Finder
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 14 November 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
Fri 1/5
09:10-22:49
1 stop30h 39m
Seattle/Tacoma Intl
Wed 6/5
06:05-07:05
1 stop32h 00m
$1,355
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 30/4
09:30-14:55
1 stop22h 25m
Seattle/Tacoma Intl
Mon 4/5
00:10-07:30
1 stop38h 20m
$1,474
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Wed 11/3
10:20-14:55
1 stop22h 35m
Seattle/Tacoma Intl
Sat 14/3
00:10-08:20
1 stop38h 10m
$1,476
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 30/4
06:00-22:08
2 stops33h 08m
Seattle/Tacoma Intl
Thu 7/5
23:05-09:45
1 stop41h 40m
$1,552
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Wed 11/3
11:35-19:40
1 stop26h 05m
Seattle/Tacoma Intl
Sun 15/3
22:30-09:50
1 stop41h 20m
$1,573
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Wed 11/3
17:30-20:58
2 stops21h 28m
Seattle/Tacoma Intl
Sun 15/3
16:50-13:00
2 stops26h 10m
$1,576
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sun 1/3
07:00-18:57
2 stops30h 57m
Seattle/Tacoma Intl
Wed 4/3
21:30-10:45
1 stop42h 15m
$1,676
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Wed 11/3
07:30-09:31
2 stops20h 01m
Seattle/Tacoma Intl
Sun 15/3
20:00-08:35
1 stop18h 35m
$1,689
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Sun 1/3
11:20-09:31
1 stop17h 11m
Seattle/Tacoma Intl
Wed 4/3
20:00-09:35
1 stop18h 35m
$1,724
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
Thu 30/4
09:25-12:58
1 stop44h 33m
Seattle/Tacoma Intl
Mon 4/5
14:00-06:35
1 stop23h 35m
$1,746
Flights are sorted by cheapest return flights first.
Deals found on 11/11
Showing 1-10 of 23 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 7 November 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 $1,083). Flying from Sydney to Seattle in March is currently the most expensive (average of $1,343). 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 14 November 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.
How much does it cost for a return flight from Sydney to Seattle?
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 29% of one-stop itineraries from Sydney to Seattle on Cheapflights.
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.
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 14 November 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 American Airlines, Asiana Airlines, and Philippine Airlines fly from Sydney to Seattle in about 22h 25m. The time it takes to get you to your destination can typically vary by up to 8h 14m. 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 $1,147, Virgin Australia will fly you from Sydney to Seattle and back. In addition to Virgin Australia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $1,150 and $1,158, respectively. Users have found that Virgin Australia is 32% cheaper than the other options available to this destination.
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 San Francisco.
What are some popular things to do or see while on a stopover in San Francisco?
If you're on a stopover in San Francisco and looking for things to do, consider visiting Fisherman's Wharf, Union Square, or Ghirardelli Square. Fisherman's Wharf, Union Square and Ghirardelli Square are located about 21.0 km, 18.7 km, and 20.8 km, respectively from San Francisco if you are interested in checking them out. Those looking to explore during their stopover in San Francisco can hire a car from San Francisco for about $61 per day.
Where are the least popular stopover locations for Sydney to Seattle flights?
The least popular stopover on flights from Sydney to Seattle is Vancouver.
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 $1,083). Flying from Sydney to Seattle in March is currently the most expensive (average of $1,343). 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 14 November 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 November 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 14 November 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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