$413+ Cheap flights from Sydney (SYD) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Nov 27 — Dec 41
Round-trip
1 adult, Economy
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Find cheap flights from Sydney to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sydney to Seattle
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Best
Last-minute
One-way
Cheapest flights from Sydney to SeattleExplore 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 October 28, 2026.
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 October 28, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:40 pm -
2 stops26h 35m
Mon 11/237:00 am -
1 stop17h 45m
Deal found 10/26![Multiple Airlines logo]()
$877
This SmartFares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:40 pm -
1 stop18h 45m
Mon 12/77:00 am -
1 stop17h 45m
Deal found 10/25![Multiple Airlines logo]()
$878
This BYOjet deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 pm -
2 stops21h 19m
Thu 11/127:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$880
This Aunt Betty deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:40 pm -
1 stop21h 19m
Sun 12/69:30 am -
1 stop39h 15m
Deal found 10/24![Multiple Airlines logo]()
$882
This Aunt Betty deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:40 pm -
1 stop21h 19m
Sun 11/295:10 pm -
1 stop31h 35m
Deal found 10/23![Multiple Airlines logo]()
$883
This Flighttix deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:10 am -
2 stops21h 59m
Wed 11/115:10 am -
2 stops32h 50m
Deal found 10/25![Iberia logo]()
$896
This oojo deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:40 pm -
1 stop27h 28m
Wed 11/187:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$897
This oojo deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 pm -
1 stop27h 28m
Fri 11/137:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$907
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:40 pm -
1 stop17h 57m
Tue 11/245:10 pm -
1 stop31h 35m
Deal found 10/26![Multiple Airlines logo]()
$912
This SmartFares deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:40 pm -
1 stop18h 45m
Fri 12/47:00 am -
1 stop17h 45m
Deal found 10/23![Multiple Airlines logo]()
$914
Best flights from Sydney to SeattleDiscover carefully curated flight deals from Sydney to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
Discover carefully curated flight deals from Sydney to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:40 am -
1 stop18h 25m
Tue 12/15:37 pm -
1 stop19h 53m
Deal found 10/25![Delta logo]()
$926
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:50 am -
1 stop19h 30m
Tue 12/18:30 am -
2 stops29h 35m
Deal found 10/25![United Airlines logo]()
$926
This Gotogate deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/158:20 pm -
2 stops31h 33m
Sat 1/162:24 pm -
2 stops56h 21m
Deal found 10/22![Air Tahiti Nui logo]()
$1,501
This Air Tahiti Nui deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/178:55 am -
3 stops26h 52m
Sat 1/308:51 pm -
2 stops49h 54m
Deal found 10/22![Multiple Airlines logo]()
$1,506
This Qatar Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/259:10 pm -
1 stop33h 30m
Fri 1/13:50 pm -
3 stops54h 15m
Deal found 10/27![Qatar Airways logo]()
$1,605
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:20 am -
2 stops25h 37m
Sat 12/511:59 pm -
2 stops38h 06m
Deal found 10/23![United Airlines logo]()
$972
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1710:40 am -
1 stop22h 57m
Mon 2/15:45 am -
2 stops31h 45m
Deal found 10/22![Delta logo]()
$972
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:20 am -
1 stop18h 54m
Wed 12/25:28 pm -
1 stop20h 37m
Deal found 10/26![United Airlines logo]()
$975
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1710:40 am -
1 stop21h 19m
Sat 1/307:15 am -
1 stop30h 15m
Deal found 10/26![Delta logo]()
$1,345
This Gotogate deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1511:30 am -
1 stop26h 15m
Sat 1/167:05 pm -
2 stops53h 20m
Deal found 10/22![Multiple Airlines logo]()
$1,553
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:20 am -
3 stops31h 24m
Sat 12/127:30 pm -
1 stop39h 50m
Deal found 10/25![United Airlines logo]()
$1,511
Last-minute flights from Sydney to SeattleDiscover last-minute flight deals from Sydney to Seattle. Data last updated October 28, 2026 and is based on user searches.
Discover last-minute flight deals from Sydney to Seattle. Data last updated October 28, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:40 pm -
2 stops26h 35m
Mon 11/237:00 am -
1 stop17h 45m
Deal found 10/26![Multiple Airlines logo]()
$877
This Flighttix deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:10 am -
2 stops21h 59m
Wed 11/115:10 am -
2 stops32h 50m
Deal found 10/25![Iberia logo]()
$896
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:40 pm -
1 stop19h 12m
Sun 11/226:30 pm -
1 stop30h 15m
Deal found 10/26![Multiple Airlines logo]()
$912
This BYOjet deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 pm -
2 stops21h 19m
Thu 11/127:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$880
This oojo deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 pm -
1 stop27h 28m
Fri 11/137:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$907
This oojo deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:40 pm -
1 stop27h 28m
Wed 11/187:00 am -
1 stop17h 45m
Deal found 10/24![Multiple Airlines logo]()
$897
This Aunt Betty deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:40 pm -
1 stop21h 19m
Sun 12/69:30 am -
1 stop39h 15m
Deal found 10/24![Multiple Airlines logo]()
$882
This SmartFares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:40 pm -
1 stop18h 45m
Mon 12/77:00 am -
1 stop17h 45m
Deal found 10/25![Multiple Airlines logo]()
$878
This Aunt Betty deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:40 pm -
1 stop21h 19m
Sun 11/295:10 pm -
1 stop31h 35m
Deal found 10/23![Multiple Airlines logo]()
$883
This SmartFares deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:40 pm -
1 stop18h 45m
Fri 12/47:00 am -
1 stop17h 45m
Deal found 10/23![Multiple Airlines logo]()
$914
One-way flights from Sydney to SeattleSearch for one-way flight options from Sydney to Seattle. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
Search for one-way flight options from Sydney to Seattle. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:00 pm -
2 stops23h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/202:55 pm -
3 stops45h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/272:00 pm -
2 stops25h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/222:00 pm -
3 stops44h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:00 am -
3 stops52h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$512
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:00 pm -
3 stops46h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:00 pm -
2 stops23h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$522
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 October 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $848 (oojo) |
One-way from | $413 (Kiwi.com) |
Popular in | September |
Cheapest in | November |
Average price | $1,022 |
Cheapflights Fare Finder
Customize 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 7,457,451 searches. Data last updated October 28, 2026.
Use the filters below to find and compare flights from Sydney to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Mon 11/9
10:40 am-10:04 pm
1 stop30h 24m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$543
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Thu 1/21
10:40 am-6:39 pm
2 stops26h 59m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$543
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Mon 1/18
1:20 pm-9:49 am
2 stops39h 29m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$550
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Mon 11/9
11:20 am-5:57 pm
2 stops25h 37m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$551
Quickest round-trip
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Fri 1/22
9:20 am-1:13 pm
1 stop22h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$603
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Thu 1/21
8:55 am-8:40 pm
3 stops30h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$763
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Tue 11/24
10:40 am-10:05 am
1 stop18h 25m
Seattle/Tacoma Intl
Tue 12/1
5:37 pm-8:30 am
1 stop19h 53m
$926
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Tue 11/24
11:50 am-12:20 pm
1 stop19h 30m
Seattle/Tacoma Intl
Tue 12/1
8:30 am-9:05 am
2 stops29h 35m
$926
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Fri 11/20
11:20 am-5:57 pm
2 stops25h 37m
Seattle/Tacoma Intl
Sat 12/5
11:59 pm-9:05 am
2 stops38h 06m
$972
SydneySeattle
SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl
SYDSEA
Sydney Kingsford Smith
Sun 1/17
10:40 am-2:37 pm
1 stop22h 57m
Seattle/Tacoma Intl
Mon 2/1
5:45 am-8:30 am
2 stops31h 45m
$972
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Sydney to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Sydney-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sydney-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SYD-SEA
Estimated round-trip 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
How far ahead should I book a flight from Sydney to Seattle?
The best time to book flights from Sydney to Seattle is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Sydney to Seattle?
Currently, November is the cheapest month in which you can book a flight from Sydney to Seattle (average of $956). Flying from Sydney to Seattle in September is currently the most expensive (average of $1,457). 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.
How much does it cost to fly round-trip from Sydney to Seattle?
Airfare is below average for this route at the moment.
Sydney to Seattle flights typically cost between $905 and $1,083 in January.The cheapest round-trip price found within the last 5 days was $848 on Multiple Airlines (Jan 21-Jan 31).
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 October 28, 2026.
Read through reviews of airlines operating flights from Sydney to Seattle, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.3
Comfort
7.3
Food
6.7
Entertainment
7.1
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Overall
7.3
Comfort
7.3
Food
6.7
Entertainment
7.1
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Overall
7.3
Comfort
7.3
Food
6.7
Entertainment
7.1
Boarding
7.7
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Olympia
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Sydney to Seattle by cabin class
Find flights from Sydney to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sydney and Seattle flights
Browse other Sydney and Seattle flight options. Last updated on October 28, 2026.
Other flights from Sydney
Browse through other flights departing from Sydney. Flights are based on user searches made on Cheapflights and were last updated on October 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 28, 2026.
Top 2 airlines flying from Sydney to Seattle
Discover the top 2 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 7,457,451 searches. Data last updated October 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$691 | Average$1,053 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$847 | Average$1,307 | FlexibilityNo cancel fee | On-time67% |