$496+ Cheap flights from Sydney (SYD) to Seattle (SEA)
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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
maj 17 — maj 241
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
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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 april 17, 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 april 17, 2026.
This Delta deal was found by Cheapflights users on 4/14. 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.
tis 5/59:15 am
SYD
- SEA
2 stops22h 31m
Delta
tis 5/1210:50 am
SEA
- SYD
2 stops27h 00m
Delta
Deal found 4/14![Delta logo]()
$967
This Delta deal was found by Cheapflights users on 4/14. 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.
tis 5/129:15 am
SYD
- SEA
1 stop24h 38m
Delta
tis 5/1910:15 am
SEA
- SYD
1 stop27h 35m
Delta
Deal found 4/14![Delta logo]()
$974
This Bravofly deal was found by Cheapflights users on 4/17. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 6/19:10 am
SYD
- SEA
1 stop29h 39m
Qantas Airways
mån 6/86:14 pm
SEA
- SYD
1 stop19h 51m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$975
This BYOjet deal was found by Cheapflights users on 4/14. 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.
tis 5/121:15 pm
SYD
- SEA
2 stops22h 25m
Multiple Airlines
ons 5/275:59 pm
SEA
- SYD
2 stops24h 51m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,007
This Delta deal was found by Cheapflights users on 4/14. 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.
lör 5/29:15 am
SYD
- SEA
2 stops20h 10m
Delta
sön 5/101:25 pm
SEA
- SYD
2 stops24h 25m
Delta
Deal found 4/14![Delta logo]()
$1,016
This Bravofly deal was found by Cheapflights users on 4/16. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/149:10 am
SYD
- SEA
1 stop20h 46m
Qantas Airways
fre 5/295:28 pm
SEA
- SYD
1 stop21h 02m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$1,021
This Delta deal was found by Cheapflights users on 4/15. 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.
fre 5/19:15 am
SYD
- SEA
1 stop22h 36m
Delta
mån 6/11:25 pm
SEA
- SYD
2 stops24h 25m
Delta
Deal found 4/15![Delta logo]()
$1,024
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/299:30 am
SYD
- SEA
1 stop22h 25m
Asiana Airlines
tors 6/412:55 am
SEA
- SYD
1 stop37h 35m
Asiana Airlines
Deal found 4/13![Asiana Airlines logo]()
$1,032
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 april 17, 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 april 17, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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.
tis 5/129:15 am
SYD
- SEA
1 stop24h 38m
Delta
tis 5/197:25 am
SEA
- SYD
1 stop30h 25m
Delta
Deal found 4/15![Delta logo]()
$978
This Flighttix deal was found by Cheapflights users on 4/12. 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.
ons 5/279:10 am
SYD
- SEA
1 stop21h 27m
British Airways
ons 6/310:27 am
SEA
- SYD
2 stops27h 38m
British Airways
Deal found 4/12![British Airways logo]()
$1,077
This United Airlines deal was found by Cheapflights users on 4/13. 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.
ons 5/610:20 am
SYD
- SEA
1 stop19h 05m
United Airlines
tis 5/1211:53 pm
SEA
- SYD
2 stops38h 07m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,100
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 5/3110:00 pm
SYD
- SEA
2 stops32h 57m
American Airlines
lör 6/277:00 am
SEA
- SYD
1 stop31h 05m
American Airlines
Deal found 4/12![American Airlines logo]()
$1,153
This Delta deal was found by Cheapflights users on 4/15. 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.
ons 5/69:15 am
SYD
- SEA
2 stops20h 10m
Delta
lör 5/167:15 am
SEA
- SYD
2 stops30h 35m
Delta
Deal found 4/15![Delta logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 4/15. 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.
tors 4/309:30 am
SYD
- SEA
2 stops27h 14m
United Airlines
lör 5/2311:52 pm
SEA
- SYD
2 stops38h 03m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,108
This Delta deal was found by Cheapflights users on 4/12. 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.
tis 4/289:15 am
SYD
- SEA
1 stop22h 36m
Delta
lör 5/309:20 pm
SEA
- SYD
1 stop40h 30m
Delta
Deal found 4/12![Delta logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 4/15. 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.
tors 6/49:30 am
SYD
- SEA
1 stop22h 06m
United Airlines
sön 6/285:04 pm
SEA
- SYD
1 stop20h 56m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,108
This Delta deal was found by Cheapflights users on 4/14. 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.
ons 5/139:15 am
SYD
- SEA
1 stop18h 40m
Delta
fre 5/291:25 pm
SEA
- SYD
2 stops24h 25m
Delta
Deal found 4/14![Delta logo]()
$1,149
Last-minute flights from Sydney to SeattleDiscover last-minute flight deals from Sydney to Seattle. Data last updated april 17, 2026 and is based on user searches.
Discover last-minute flight deals from Sydney to Seattle. Data last updated april 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/15. 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.
fre 5/19:15 am
SYD
- SEA
1 stop22h 36m
Delta
mån 6/11:25 pm
SEA
- SYD
2 stops24h 25m
Delta
Deal found 4/15![Delta logo]()
$1,024
This Delta deal was found by Cheapflights users on 4/14. 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.
lör 5/29:15 am
SYD
- SEA
2 stops20h 10m
Delta
ons 5/135:35 pm
SEA
- SYD
1 stop20h 15m
Delta
Deal found 4/14![Delta logo]()
$1,016
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 5/41:15 pm
SYD
- SEA
2 stops24h 35m
Multiple Airlines
mån 5/115:06 pm
SEA
- SYD
2 stops25h 44m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,037
This Delta deal was found by Cheapflights users on 4/14. 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.
tis 5/59:15 am
SYD
- SEA
2 stops22h 31m
Delta
tis 5/1210:50 am
SEA
- SYD
2 stops27h 00m
Delta
Deal found 4/14![Delta logo]()
$967
This Delta deal was found by Cheapflights users on 4/14. 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.
tis 5/129:15 am
SYD
- SEA
1 stop24h 38m
Delta
tis 5/1910:15 am
SEA
- SYD
1 stop27h 35m
Delta
Deal found 4/14![Delta logo]()
$974
This BYOjet deal was found by Cheapflights users on 4/14. 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.
tis 5/121:15 pm
SYD
- SEA
2 stops22h 25m
Multiple Airlines
ons 5/275:59 pm
SEA
- SYD
2 stops24h 51m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,007
This Bravofly deal was found by Cheapflights users on 4/16. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/149:10 am
SYD
- SEA
1 stop20h 46m
Qantas Airways
fre 5/295:28 pm
SEA
- SYD
1 stop21h 02m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$1,021
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/299:30 am
SYD
- SEA
1 stop22h 25m
Asiana Airlines
tors 6/412:55 am
SEA
- SYD
1 stop37h 35m
Asiana Airlines
Deal found 4/13![Asiana Airlines logo]()
$1,032
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 april 17, 2026.
Search for one-way flight options from Sydney to Seattle. Find affordable one-way fares based on user searches. Data last updated april 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
mån 8/318:10 am
SYD
- SEA
3 stops27h 16m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
mån 7/277:20 am
SYD
- SEA
3 stops28h 06m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
mån 7/138:20 am
SYD
- SEA
3 stops27h 06m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$542
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
ons 9/28:45 pm
SYD
- SEA
3 stops51h 46m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$547
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
ons 5/1312:40 pm
SYD
- SEA
3 stops46h 55m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
tors 10/18:20 am
SYD
- SEA
3 stops27h 08m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
ons 7/87:15 pm
SYD
- SEA
3 stops40h 11m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$643
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
ons 7/157:15 pm
SYD
- SEA
3 stops40h 11m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$649
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
ons 7/298:45 pm
SYD
- SEA
3 stops40h 51m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$658
This FlightHub deal was found by Cheapflights users on 4/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 4/221:20 pm
SYD
- SEA
2 stops25h 58m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$664
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 6/19:10 am
SYD
- SEA
1 stop21h 47m
American Airlines
Deal found 4/14![American Airlines logo]()
$668
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 april 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $967 (Delta) |
One-way from | $496 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $1,095 |
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 2,558,603 searches. Data last updated april 17, 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 - SEA
SYDSEA
Sydney Kingsford Smith
tis 5/12
9:15 am-4:53 pm
1 stop24h 38m
Seattle/Tacoma Intl
tis 5/19
7:25 am-6:50 am
1 stop30h 25m
$978
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
ons 5/6
9:15 am-12:25 pm
2 stops20h 10m
Seattle/Tacoma Intl
lör 5/16
7:15 am-6:50 am
2 stops30h 35m
$1,024
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
ons 5/27
9:10 am-1:37 pm
1 stop21h 27m
Seattle/Tacoma Intl
ons 6/3
10:27 am-7:05 am
2 stops27h 38m
$1,077
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
ons 5/6
10:20 am-12:25 pm
1 stop19h 05m
Seattle/Tacoma Intl
tis 5/12
11:53 pm-7:00 am
2 stops38h 07m
$1,100
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
tis 4/28
9:15 am-2:51 pm
1 stop22h 36m
Seattle/Tacoma Intl
lör 5/30
9:20 pm-6:50 am
1 stop40h 30m
$1,100
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
tors 4/30
9:30 am-7:44 pm
2 stops27h 14m
Seattle/Tacoma Intl
lör 5/23
11:52 pm-6:55 am
2 stops38h 03m
$1,108
Quickest round-trip
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
tors 6/4
9:30 am-2:36 pm
1 stop22h 06m
Seattle/Tacoma Intl
sön 6/28
5:04 pm-7:00 am
1 stop20h 56m
$1,108
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
ons 5/13
9:15 am-10:55 am
1 stop18h 40m
Seattle/Tacoma Intl
fre 5/29
1:25 pm-6:50 am
2 stops24h 25m
$1,149
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
sön 5/31
10:00 pm-1:57 pm
2 stops32h 57m
Seattle/Tacoma Intl
lör 6/27
7:00 am-7:05 am
1 stop31h 05m
$1,153
Cheapest one-way
SydneySeattle
SYD - SEA
SYDSEA
Sydney Kingsford Smith
ons 4/29
1:15 pm-6:40 pm
2 stops22h 25m
$664
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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?
Use this chart to determine the optimal time to book a round-trip flight from Sydney to Seattle. Price data was last updated on April 10, 2026.
The best time to book flights from Sydney to Seattle is 39 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, September is the cheapest month in which you can book a flight from Sydney to Seattle (average of $876). Flying from Sydney to Seattle in July is currently the most expensive (average of $1,391). 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?
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 april 17, 2026.
Read through reviews of airlines operating flights from Sydney to Seattle, such as Delta,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Kent
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
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Sydney and Seattle flights
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Top 3 airlines flying from Sydney to Seattle
Discover the top 3 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 2,558,603 searches. Data last updated april 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$794 | Average$1,121 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$828 | Average$1,054 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$939 | Average$1,391 | FlexibilityNo cancel fee | On-timeN/A |