$427+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to New South Wales with Cheapflights
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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
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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 April 24, 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 April 24, 2026.
This KAYAK deal was found by Cheapflights users on 4/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:01 pm
SEA
- OOL
2 stops24h 29m
Multiple Airlines
Mon 9/712:30 pm
OOL
- SEA
2 stops24h 12m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$972
This Ovago deal was found by Cheapflights users on 4/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:03 pm
SEA
- OOL
2 stops43h 27m
Multiple Airlines
Thu 8/2712:30 pm
OOL
- SEA
2 stops22h 56m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$984
This Trip.com deal was found by Cheapflights users on 4/21. 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.
Mon 5/1111:06 am
SEA
- SYD
2 stops31h 44m
Multiple Airlines
Thu 5/281:15 pm
SYD
- SEA
3 stops37h 51m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,041
This lastminute.com deal was found by Cheapflights users on 4/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:30 pm
SEA
- SYD
1 stop33h 40m
ANA
Tue 5/198:55 pm
SYD
- SEA
1 stop34h 30m
ANA
Deal found 4/24![ANA logo]()
$1,054
This BusinessClass deal was found by Cheapflights users on 4/19. 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 6/256:10 pm
SEA
- OOL
2 stops24h 20m
Multiple Airlines
Thu 7/2312:30 pm
OOL
- SEA
2 stops22h 40m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,060
This Expedia deal was found by Cheapflights users on 4/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/32:55 pm
SEA
- SYD
1 stop23h 25m
Air Canada
Tue 5/199:20 am
SYD
- SEA
1 stop22h 00m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,072
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:45 am
SEA
- SYD
1 stop27h 35m
Air Canada
Wed 5/279:20 am
SYD
- SEA
1 stop22h 00m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,078
This Air Canada deal was found by Cheapflights users on 4/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Wed 6/39:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,084
This United Airlines deal was found by Cheapflights users on 4/20. 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 4/2611:35 am
SEA
- SYD
1 stop26h 20m
United Airlines
Sun 5/109:30 am
SYD
- SEA
2 stops28h 36m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,089
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:36 pm
SEA
- SYD
1 stop18h 19m
United Airlines
Tue 5/199:30 am
SYD
- SEA
2 stops28h 36m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,090
This flugladen.de deal was found by Cheapflights users on 4/21. 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.
Sun 4/267:08 pm
SEA
- SYD
1 stop30h 42m
Multiple Airlines
Sun 5/108:45 pm
SYD
- SEA
1 stop21h 08m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,091
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/316:48 pm
SEA
- SYD
1 stop19h 07m
United Airlines
Tue 6/1610:20 am
SYD
- SEA
1 stop19h 14m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,093
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 April 24, 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 April 24, 2026.
This KAYAK deal was found by Cheapflights users on 4/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:01 pm
SEA
- OOL
2 stops24h 29m
Multiple Airlines
Mon 9/712:30 pm
OOL
- SEA
2 stops24h 12m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$972
This United Airlines deal was found by Cheapflights users on 4/20. 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 5/204:32 pm
SEA
- SYD
1 stop21h 28m
United Airlines
Tue 6/29:30 am
SYD
- SEA
1 stop22h 06m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,100
This Delta deal was found by Cheapflights users on 4/20. 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.
Sat 8/110:50 am
SEA
- SYD
2 stops27h 00m
Delta
Fri 8/149:15 am
SYD
- SEA
2 stops24h 37m
Delta
Deal found 4/20![Delta logo]()
$1,205
This Hawaiian Airlines deal was found by Cheapflights users on 4/24. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:52 pm
SEA
- SYD
1 stop28h 58m
Alaska Airlines
Tue 11/179:40 pm
SYD
- SEA
1 stop17h 20m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$1,287
This oojo deal was found by Cheapflights users on 4/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:29 am
SEA
- OOL
2 stops31h 21m
Air New Zealand
Mon 10/1210:55 am
OOL
- SEA
2 stops28h 01m
Air New Zealand
Deal found 4/22![Air New Zealand logo]()
$1,525
This Qantas Airways deal was found by Cheapflights users on 4/23. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:59 pm
SEA
- DBO
2 stops27h 01m
Qantas Airways
Sun 9/64:45 pm
DBO
- SEA
2 stops43h 57m
Qantas Airways
Deal found 4/23![Qantas Airways logo]()
$1,662
This Gurufare deal was found by Cheapflights users on 4/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:45 am
SEA
- OOL
3 stops33h 55m
ANA
Sun 6/147:05 am
OOL
- SEA
3 stops28h 25m
ANA
Deal found 4/23![ANA logo]()
$1,672
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/316:48 pm
SEA
- SYD
1 stop19h 07m
United Airlines
Thu 6/1810:20 am
SYD
- SEA
1 stop21h 10m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,142
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/1112:51 pm
SEA
- SYD
2 stops25h 09m
United Airlines
Thu 5/2810:20 am
SYD
- SEA
2 stops22h 35m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,155
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:35 am
SEA
- OOL
2 stops30h 45m
Multiple Airlines
Sat 6/138:50 pm
OOL
- SEA
2 stops44h 09m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,306
This KLM deal was found by Cheapflights users on 4/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:40 pm
SEA
- SYD
2 stops43h 45m
KLM
Mon 6/159:15 am
SYD
- SEA
2 stops43h 22m
KLM
Deal found 4/21![KLM logo]()
$2,677
This Delta deal was found by Cheapflights users on 4/21. 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 5/59:50 am
SEA
- SYD
2 stops28h 00m
Delta
Fri 5/89:15 am
SYD
- SEA
1 stop20h 08m
Delta
Deal found 4/21![Delta logo]()
$1,391
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 6/41:30 pm
SEA
- SYD
1 stop24h 25m
United Airlines
Thu 6/1810:20 am
SYD
- SEA
1 stop23h 00m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,200
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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.
Sun 10/188:40 pm
SEA
- OOL
2 stops44h 00m
Multiple Airlines
Thu 10/222:50 pm
OOL
- SEA
2 stops23h 03m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,325
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 8/111:02 am
SEA
- SYD
2 stops26h 58m
United Airlines
Fri 8/149:30 am
SYD
- SEA
2 stops28h 41m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,204
This Orbitz deal was found by Cheapflights users on 4/20. 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.
Thu 5/217:35 am
SEA
- OOL
2 stops30h 45m
Multiple Airlines
Mon 5/258:50 pm
OOL
- SEA
2 stops50h 10m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,381
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/2111:02 am
SEA
- SYD
2 stops26h 58m
United Airlines
Thu 5/289:30 am
SYD
- SEA
2 stops23h 25m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,204
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:20 am
SEA
- SYD
1 stop18h 30m
Multiple Airlines
Tue 11/179:40 pm
SYD
- SEA
2 stops20h 20m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,407
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 6/76:48 pm
SEA
- OOL
2 stops24h 37m
United Airlines
Sun 6/147:05 am
OOL
- SEA
2 stops24h 25m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,237
This BusinessClass deal was found by Cheapflights users on 4/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:04 pm
SEA
- DBO
2 stops23h 51m
Multiple Airlines
Sat 6/136:30 am
DBO
- SEA
2 stops33h 49m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$1,438
This Booking.com deal was found by Cheapflights users on 4/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:04 pm
SEA
- DBO
3 stops34h 06m
Air New Zealand
Sat 6/136:30 am
DBO
- SEA
3 stops32h 29m
Air New Zealand
Deal found 4/22![Air New Zealand logo]()
$2,291
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:30 am
SEA
- SYD
1 stop31h 30m
United Airlines
Wed 8/269:30 am
SYD
- SEA
2 stops28h 41m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,309
This Jetabroad deal was found by Cheapflights users on 4/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:20 pm
SEA
- OOL
3 stops45h 20m
Multiple Airlines
Sun 6/143:50 pm
OOL
- SEA
2 stops25h 09m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,479
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/67:05 pm
SEA
- OOL
2 stops24h 20m
United Airlines
Sat 6/136:00 am
OOL
- SEA
3 stops32h 19m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,337
This United Airlines deal was found by Cheapflights users on 4/20. 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 5/156:58 pm
SEA
- OOL
2 stops24h 27m
United Airlines
Fri 5/226:00 am
OOL
- SEA
3 stops32h 10m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,337
Last-minute flights from Seattle to New South WalesDiscover last-minute flight deals from Seattle to New South Wales. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to New South Wales. Data last updated April 24, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/20. 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 4/2611:35 am
SEA
- SYD
1 stop26h 20m
United Airlines
Sun 5/109:30 am
SYD
- SEA
2 stops28h 36m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,089
This flugladen.de deal was found by Cheapflights users on 4/21. 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.
Sun 4/267:08 pm
SEA
- SYD
1 stop30h 42m
Multiple Airlines
Sun 5/108:45 pm
SYD
- SEA
1 stop21h 08m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,091
This lastminute.com deal was found by Cheapflights users on 4/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:30 pm
SEA
- SYD
1 stop33h 40m
ANA
Tue 5/198:55 pm
SYD
- SEA
1 stop34h 30m
ANA
Deal found 4/24![ANA logo]()
$1,054
This Expedia deal was found by Cheapflights users on 4/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/32:55 pm
SEA
- SYD
1 stop23h 25m
Air Canada
Tue 5/199:20 am
SYD
- SEA
1 stop22h 00m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:36 pm
SEA
- SYD
1 stop18h 19m
United Airlines
Tue 5/199:30 am
SYD
- SEA
2 stops28h 36m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,090
This Justfly.com deal was found by Cheapflights users on 4/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/102:55 pm
SEA
- SYD
1 stop23h 25m
Air Canada
Tue 7/79:20 am
SYD
- SEA
1 stop17h 47m
Air Canada
Deal found 4/21![Air Canada logo]()
$1,094
This Trip.com deal was found by Cheapflights users on 4/21. 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.
Mon 5/1111:06 am
SEA
- SYD
2 stops31h 44m
Multiple Airlines
Thu 5/281:15 pm
SYD
- SEA
3 stops37h 51m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,041
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/1212:34 pm
SEA
- SYD
1 stop25h 26m
United Airlines
Mon 7/69:30 am
SYD
- SEA
1 stop22h 06m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,100
This Ovago deal was found by Cheapflights users on 4/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:35 am
SEA
- OOL
2 stops32h 05m
Multiple Airlines
Fri 5/223:50 pm
OOL
- SEA
2 stops23h 03m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,314
This Air Canada deal was found by Cheapflights users on 4/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:20 pm
SEA
- SYD
1 stop19h 00m
Air Canada
Wed 6/39:20 am
SYD
- SEA
1 stop17h 45m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,084
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:45 am
SEA
- SYD
1 stop27h 35m
Air Canada
Wed 5/279:20 am
SYD
- SEA
1 stop22h 00m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,078
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/316:48 pm
SEA
- SYD
1 stop19h 07m
United Airlines
Tue 6/1610:20 am
SYD
- SEA
1 stop19h 14m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,093
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 April 24, 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 April 24, 2026.
This Trip.com deal was found by Cheapflights users on 4/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2411:21 am
SEA
- SYD
2 stops31h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$427
This Trip.com deal was found by Cheapflights users on 4/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:03 am
SEA
- SYD
2 stops31h 47m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:38 pm
SEA
- SYD
2 stops30h 12m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:18 pm
SEA
- SYD
2 stops45h 32m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
SEA
- SYD
2 stops36h 50m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 8/1911:03 am
SEA
- SYD
2 stops31h 47m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$515
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:03 am
SEA
- SYD
2 stops31h 47m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$530
This Trip.com deal was found by Cheapflights users on 4/21. 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.
Fri 6/53:48 pm
SEA
- SYD
2 stops27h 02m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/209:15 pm
SEA
- SYD
2 stops55h 55m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$548
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2411:03 am
SEA
- SYD
2 stops31h 47m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$569
This Thrive Travel deal was found by Cheapflights users on 4/22. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:40 pm
SEA
- OOL
2 stops29h 35m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$1,111
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 April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $972 (KAYAK) |
One-way from | $427 (Trip.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,065 |
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 April 24, 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
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Tue 8/25
6:01 pm-11:30 am
2 stops24h 29m
Coolangatta Gold Coast
Mon 9/7
12:30 pm-7:42 pm
2 stops24h 12m
$972
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Wed 5/20
4:32 pm-7:00 am
1 stop21h 28m
Sydney Kingsford Smith
Tue 6/2
9:30 am-2:36 pm
1 stop22h 06m
$1,100
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sun 5/31
6:48 pm-6:55 am
1 stop19h 07m
Sydney Kingsford Smith
Thu 6/18
10:20 am-2:30 pm
1 stop21h 10m
$1,142
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Mon 5/11
12:51 pm-7:00 am
2 stops25h 09m
Sydney Kingsford Smith
Thu 5/28
10:20 am-3:55 pm
2 stops22h 35m
$1,155
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Thu 6/4
1:30 pm-6:55 am
1 stop24h 25m
Sydney Kingsford Smith
Thu 6/18
10:20 am-4:20 pm
1 stop23h 00m
$1,200
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 8/1
11:02 am-7:00 am
2 stops26h 58m
Sydney Kingsford Smith
Fri 8/14
9:30 am-9:11 pm
2 stops28h 41m
$1,204
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Thu 5/21
11:02 am-7:00 am
2 stops26h 58m
Sydney Kingsford Smith
Thu 5/28
9:30 am-3:55 pm
2 stops23h 25m
$1,204
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 8/1
10:50 am-6:50 am
2 stops27h 00m
Sydney Kingsford Smith
Fri 8/14
9:15 am-4:52 pm
2 stops24h 37m
$1,205
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Sun 6/7
6:48 pm-12:25 pm
2 stops24h 37m
Coolangatta Gold Coast
Sun 6/14
7:05 am-2:30 pm
2 stops24h 25m
$1,237
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Tue 9/29
8:52 pm-6:50 pm
1 stop28h 58m
Sydney Kingsford Smith
Tue 11/17
9:40 pm-8:00 pm
1 stop17h 20m
$1,287
Showing 1-10 of 33 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 April 24, 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
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
EWR - NRT
Crew
8.7
Food
7.8
Entertainment
8.0
Comfort
8.2
Overall
8.4
Boarding
8.5
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.
Search flights from Seattle to New South Wales by cabin class
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 April 24, 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$655 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$591 | Average$1,162 | 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$988 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$813 | Average$1,155 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$833 | Average$1,111 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$842 | Average$1,227 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$947 | Average$1,220 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,126 | Average$1,268 | FlexibilityNo cancel fee | On-timeN/A |