$469+ Cheap flights from Seattle (SEA) to New South Wales
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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Jun 5 — Jun 121
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to New South Wales with Cheapflights
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Cheapest flights from Seattle to New South WalesExplore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.
Explore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.
This flugladen.de deal was found by Cheapflights users on 5/6. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Sun 5/249:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/6![Air Canada logo]()
$990
This Orbitz deal was found by Cheapflights users on 5/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Tue 6/99:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,012
This lol.travel deal was found by Cheapflights users on 5/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Sun 5/247:00 am
SYD
- SEA
2 stops20h 05m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,020
This Air Canada deal was found by Cheapflights users on 5/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:55 pm
SEA
- SYD
1 stop23h 25m
Multiple Airlines
Tue 6/26:00 am
SYD
- SEA
2 stops21h 05m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,032
This Air Canada deal was found by Cheapflights users on 5/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 pm
SEA
- SYD
2 stops23h 35m
Multiple Airlines
Sun 5/249:20 am
SYD
- SEA
1 stop26h 10m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,051
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:20 pm
SEA
- SYD
2 stops22h 35m
Multiple Airlines
Mon 6/159:20 am
SYD
- SEA
1 stop26h 10m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,052
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Thu 6/49:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,055
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Mon 6/299:20 am
SYD
- SEA
1 stop17h 47m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,063
This oojo deal was found by Cheapflights users on 5/5. 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.
Mon 5/186:40 pm
SEA
- SYD
1 stop19h 25m
Qantas Airways
Wed 6/35:50 pm
SYD
- SEA
1 stop20h 59m
Qantas Airways
Deal found 5/5![Qantas Airways logo]()
$1,075
This SmartFares deal was found by Cheapflights users on 5/3. 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.
Sat 10/247:00 am
SEA
- OOL
2 stops30h 30m
Multiple Airlines
Fri 10/302:30 pm
OOL
- SEA
2 stops24h 07m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$1,291
This SmartFares deal was found by Cheapflights users on 5/1. 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 10/255:55 pm
SEA
- OOL
2 stops46h 45m
Multiple Airlines
Fri 10/3011:10 am
OOL
- SEA
2 stops26h 35m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,319
This BusinessClass deal was found by Cheapflights users on 5/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:05 pm
SEA
- OOL
2 stops25h 35m
Multiple Airlines
Thu 6/116:00 am
OOL
- SEA
2 stops25h 30m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,387
Best flights from Seattle to New South WalesDiscover carefully curated flight deals from Seattle to New South Wales that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
Discover carefully curated flight deals from Seattle to New South Wales that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Mon 6/17:05 pm
SEA
- SYD
1 stop18h 50m
United Airlines
Sun 6/1410:20 am
SYD
- SEA
1 stop23h 09m
United Airlines
Deal found 5/2![United Airlines logo]()
$1,100
This Qantas Airways deal was found by Cheapflights users on 5/4. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:40 pm
SEA
- SYD
1 stop23h 25m
Qantas Airways
Tue 6/239:10 am
SYD
- SEA
1 stop29h 48m
Qantas Airways
Deal found 5/4![Qantas Airways logo]()
$1,175
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 5/98:00 am
SEA
- SYD
1 stop17h 50m
Multiple Airlines
Sat 5/308:45 pm
SYD
- SEA
2 stops30h 15m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,423
This Delta deal was found by Cheapflights users on 5/6. 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.
Thu 6/1110:05 am
SEA
- SYD
1 stop27h 45m
Delta
Thu 6/259:15 am
SYD
- SEA
1 stop28h 19m
Delta
Deal found 5/6![Delta logo]()
$1,449
This oojo deal was found by Cheapflights users on 5/1. 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.
Mon 6/1511:00 pm
SEA
- OOL
2 stops42h 45m
Air New Zealand
Mon 6/226:00 pm
OOL
- SEA
2 stops34h 52m
Air New Zealand
Deal found 5/1![Air New Zealand logo]()
$1,738
This Gotogate deal was found by Cheapflights users on 5/1. 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.
Mon 6/1510:45 am
SEA
- OOL
3 stops33h 55m
ANA
Mon 6/227:05 am
OOL
- SEA
3 stops28h 27m
ANA
Deal found 5/1![ANA logo]()
$1,786
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Mon 5/257:05 pm
SEA
- SYD
1 stop18h 50m
United Airlines
Tue 6/1610:20 am
SYD
- SEA
1 stop23h 00m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,101
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 5/205:45 pm
SEA
- SYD
1 stop20h 15m
United Airlines
Sat 6/69:30 am
SYD
- SEA
2 stops28h 49m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,150
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 5/163:40 pm
SEA
- SYD
2 stops46h 20m
United Airlines
Thu 5/2810:20 am
SYD
- SEA
1 stop19h 14m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,169
This Delta deal was found by Cheapflights users on 5/1. 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.
Fri 5/1510:50 am
SEA
- SYD
2 stops27h 00m
Delta
Thu 5/219:15 am
SYD
- SEA
2 stops23h 08m
Delta
Deal found 5/1![Delta logo]()
$1,460
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Sat 6/135:20 pm
SEA
- SYD
1 stop20h 35m
United Airlines
Sat 7/49:30 am
SYD
- SEA
3 stops30h 48m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,205
This Alaska Airlines deal was found by Cheapflights users on 5/3. 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 6/189:10 pm
SEA
- OOL
2 stops44h 30m
Multiple Airlines
Thu 6/257:00 am
OOL
- SEA
2 stops39h 59m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$1,706
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Sun 8/211:02 am
SEA
- SYD
2 stops26h 58m
United Airlines
Wed 8/1910:20 am
SYD
- SEA
2 stops24h 25m
United Airlines
Deal found 5/2![United Airlines logo]()
$1,304
This Qantas Airways deal was found by Cheapflights users on 5/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:31 pm
SEA
- DBO
2 stops33h 39m
Qantas Airways
Wed 5/206:30 am
DBO
- SEA
2 stops33h 28m
Qantas Airways
Deal found 5/1![Qantas Airways logo]()
$1,998
This Gotogate deal was found by Cheapflights users on 5/4. 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.
Thu 6/183:00 pm
SEA
- OOL
2 stops26h 45m
Air New Zealand
Thu 6/256:00 pm
OOL
- SEA
3 stops44h 59m
Air New Zealand
Deal found 5/4![Air New Zealand logo]()
$2,038
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sun 5/177:36 pm
SEA
- OOL
2 stops22h 04m
United Airlines
Sun 6/286:00 am
OOL
- SEA
2 stops31h 53m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,444
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Thu 6/47:05 pm
SEA
- OOL
2 stops24h 20m
United Airlines
Thu 6/116:00 am
OOL
- SEA
3 stops32h 10m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,555
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/194:32 pm
SEA
- OOL
2 stops25h 08m
United Airlines
Fri 5/227:05 am
OOL
- SEA
2 stops30h 48m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,730
This Booking.com deal was found by Cheapflights users on 5/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:35 am
SEA
- OOL
2 stops30h 15m
Multiple Airlines
Tue 7/219:15 am
OOL
- SEA
3 stops43h 20m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$5,358
Last-minute flights from Seattle to New South WalesDiscover last-minute flight deals from Seattle to New South Wales. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to New South Wales. Data last updated May 6, 2026 and is based on user searches.
This lol.travel deal was found by Cheapflights users on 5/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Sun 5/247:00 am
SYD
- SEA
2 stops20h 05m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,020
This flugladen.de deal was found by Cheapflights users on 5/6. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Sun 5/249:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/6![Air Canada logo]()
$990
This Air Canada deal was found by Cheapflights users on 5/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 pm
SEA
- SYD
2 stops23h 35m
Multiple Airlines
Sun 5/249:20 am
SYD
- SEA
1 stop26h 10m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,051
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sun 5/177:36 pm
SEA
- OOL
2 stops22h 04m
United Airlines
Sun 6/286:00 am
OOL
- SEA
2 stops31h 53m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,444
This oojo deal was found by Cheapflights users on 5/5. 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.
Mon 5/186:40 pm
SEA
- SYD
1 stop19h 25m
Qantas Airways
Wed 6/35:50 pm
SYD
- SEA
1 stop20h 59m
Qantas Airways
Deal found 5/5![Qantas Airways logo]()
$1,075
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Thu 6/49:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,055
This Air Canada deal was found by Cheapflights users on 5/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:55 pm
SEA
- SYD
1 stop23h 25m
Multiple Airlines
Tue 6/26:00 am
SYD
- SEA
2 stops21h 05m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,032
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Mon 6/299:20 am
SYD
- SEA
1 stop17h 47m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,063
This Orbitz deal was found by Cheapflights users on 5/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Tue 6/99:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 5/5![Air Canada logo]()
$1,012
This Air Canada deal was found by Cheapflights users on 5/5. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:20 pm
SEA
- SYD
2 stops22h 35m
Multiple Airlines
Mon 6/159:20 am
SYD
- SEA
1 stop26h 10m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,052
This BusinessClass deal was found by Cheapflights users on 5/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:05 pm
SEA
- OOL
2 stops25h 35m
Multiple Airlines
Thu 6/116:00 am
OOL
- SEA
2 stops25h 30m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,387
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Thu 6/47:05 pm
SEA
- OOL
2 stops24h 20m
United Airlines
Thu 6/116:00 am
OOL
- SEA
3 stops32h 10m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,555
One-way flights from Seattle to New South WalesSearch for one-way flight options from Seattle to New South Wales. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
Search for one-way flight options from Seattle to New South Wales. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/511:21 am
SEA
- SYD
2 stops31h 29m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$469
This Trip.com deal was found by Cheapflights users on 5/1. 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.
Tue 5/1911:06 am
SEA
- SYD
2 stops31h 44m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$509
This Trip.com deal was found by Cheapflights users on 5/1. 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.
Thu 5/2811:21 am
SEA
- SYD
2 stops31h 29m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/2011:06 am
SEA
- SYD
2 stops31h 44m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$537
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/3011:21 am
SEA
- SYD
1 stop27h 09m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Sun 5/1711:06 am
SEA
- SYD
2 stops31h 44m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/223:19 pm
SEA
- SYD
3 stops51h 31m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/1711:03 am
SEA
- SYD
1 stop27h 27m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$594
Find flight deals from Seattle to New South Wales
Keep the following information in mind while searching for Seattle to New South Wales flight deals. Data was last updated May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,012 (Orbitz) |
One-way from | $469 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,106 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to New South Wales 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 May 6, 2026.
Use the filters below to find and compare flights from Seattle to New South Wales that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Mon 6/1
7:05 pm-6:55 am
1 stop18h 50m
Sydney Kingsford Smith
Sun 6/14
10:20 am-4:29 pm
1 stop23h 09m
$1,100
Quickest round-trip
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Mon 5/25
7:05 pm-6:55 am
1 stop18h 50m
Sydney Kingsford Smith
Tue 6/16
10:20 am-4:20 pm
1 stop23h 00m
$1,101
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Wed 5/20
5:45 pm-7:00 am
1 stop20h 15m
Sydney Kingsford Smith
Sat 6/6
9:30 am-9:19 pm
2 stops28h 49m
$1,150
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 5/16
3:40 pm-7:00 am
2 stops46h 20m
Sydney Kingsford Smith
Thu 5/28
10:20 am-12:34 pm
1 stop19h 14m
$1,169
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Tue 5/26
2:40 pm-7:05 am
1 stop23h 25m
Sydney Kingsford Smith
Tue 6/23
9:10 am-9:58 pm
1 stop29h 48m
$1,175
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 6/13
5:20 pm-6:55 am
1 stop20h 35m
Sydney Kingsford Smith
Sat 7/4
9:30 am-11:18 pm
3 stops30h 48m
$1,205
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sun 8/2
11:02 am-7:00 am
2 stops26h 58m
Sydney Kingsford Smith
Wed 8/19
10:20 am-5:45 pm
2 stops24h 25m
$1,304
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 5/9
8:00 am-6:50 pm
1 stop17h 50m
Sydney Kingsford Smith
Sat 5/30
8:45 pm-10:00 am
2 stops30h 15m
$1,423
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Sun 5/17
7:36 pm-10:40 am
2 stops22h 04m
Coolangatta Gold Coast
Sun 6/28
6:00 am-8:53 pm
2 stops31h 53m
$1,444
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Thu 6/11
10:05 am-6:50 am
1 stop27h 45m
Sydney Kingsford Smith
Thu 6/25
9:15 am-8:34 pm
1 stop28h 19m
$1,449
Showing 1-10 of 27 resultsSorted by cheapest first
Best time to book a flight from Seattle to New South Wales
Have a flexible travel schedule? Discover the best time to fly to New South Wales from Seattle with our price prediction graph.
SEA-SYD
SEA-OOL
SEA-DBO
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 Seattle to New South Wales
SEA-AUNSW
SEA-SYD
SEA-OOL
SEA-DBO
How far ahead should I book a flight from Seattle to New South Wales?
Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to New South Wales. 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 Seattle to New South Wales?
Currently, February is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $142). Flying from Seattle to New South Wales in January is currently the most expensive (average of $825). 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 Seattle to New South Wales?
Reviews of airlines servicing New South Wales
Get insights into the airlines that provide service to New South Wales. 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 New South Wales. Reviews last updated May 6, 2026.
Peruse reviews from past customers who have flown with ANA,Alaska Airlines, andQantas Airways from Seattle to New South Wales to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Boarding
8.5
Overall
8.3
Food
7.7
Entertainment
8.0
Comfort
8.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Related info for your journey
Find useful and relevant information for your journey from Seattle to New South Wales. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to New South Wales
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Complete your trip
Complete your trip to New South Wales by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Seattle to New South Wales, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and New South Wales flights
Browse other Seattle and New South Wales flight options. Last updated on May 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to New South Wales
Discover the top 10 airlines that operate flights from Seattle to New South Wales. 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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$655 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$591 | Average$1,164 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$778 | Average$1,058 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$789 | Average$888 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$804 | Average$1,011 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$813 | Average$1,153 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$831 | Average$1,090 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$842 | Average$1,218 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$947 | Average$1,220 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,126 | Average$1,237 | FlexibilityNo cancel fee | On-timeN/A |