$531+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Sep 4 — Sep 111
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to New South Wales 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
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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 August 5, 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 August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 11/511:06 am -
1 stop24h 19m
Wed 11/182:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Thu 11/511:06 am -
1 stop24h 19m
Mon 11/162:00 pm -
2 stops23h 26m
Deal found 8/2![Multiple Airlines logo]()
$925
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:06 am -
1 stop24h 19m
Tue 11/102:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$936
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 11/511:06 am -
1 stop24h 19m
Tue 11/102:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$938
This Air Canada deal was found by Cheapflights users on 8/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:20 pm -
1 stop19h 00m
Wed 9/169:20 am -
1 stop17h 45m
Deal found 8/4![Air Canada logo]()
$939
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:06 am -
1 stop24h 19m
Wed 11/182:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$940
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Tue 11/1011:06 am -
1 stop24h 19m
Wed 11/182:00 pm -
2 stops23h 26m
Deal found 8/3![Multiple Airlines logo]()
$942
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:06 am -
1 stop24h 19m
Mon 11/162:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$947
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:00 pm -
1 stop23h 20m
Sun 9/279:20 am -
1 stop22h 02m
Deal found 8/4![Air Canada logo]()
$949
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:06 am -
1 stop24h 19m
Mon 11/162:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$951
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Thu 11/1211:06 am -
1 stop24h 19m
Wed 11/182:00 pm -
2 stops23h 26m
Deal found 8/3![Multiple Airlines logo]()
$952
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:06 am -
1 stop24h 19m
Tue 11/172:00 pm -
2 stops23h 26m
Deal found 7/31![Multiple Airlines logo]()
$958
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 August 5, 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 August 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/95:04 pm -
1 stop20h 56m
Sun 8/239:30 am -
2 stops28h 45m
Deal found 8/4![United Airlines logo]()
$1,030
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:15 pm -
1 stop22h 35m
Tue 11/310:40 am -
1 stop20h 47m
Deal found 7/30![Delta logo]()
$1,089
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:55 pm -
2 stops28h 45m
Tue 9/227:00 am -
2 stops26h 42m
Deal found 8/1![American Airlines logo]()
$1,140
This Priceline deal was found by Cheapflights users on 8/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
2 stops26h 00m
Sat 10/316:00 am -
2 stops20h 17m
Deal found 8/4![Multiple Airlines logo]()
$1,272
This Priceline deal was found by Cheapflights users on 8/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:10 am -
2 stops33h 30m
Fri 10/306:00 am -
2 stops29h 22m
Deal found 8/2![Air Canada logo]()
$1,336
This Booking.com deal was found by Cheapflights users on 8/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:15 pm -
3 stops35h 30m
Sat 10/316:00 am -
3 stops32h 57m
Deal found 8/4![Air New Zealand logo]()
$1,609
This Fiji Airways deal was found by Cheapflights users on 7/30. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:44 pm -
2 stops35h 41m
Sun 10/182:15 pm -
2 stops23h 41m
Deal found 7/30![Fiji Airways logo]()
$1,656
This Qatar Airways deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:25 pm -
2 stops36h 00m
Thu 8/2011:30 am -
2 stops42h 15m
Deal found 7/31![Qatar Airways logo]()
$2,094
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/108:56 am -
2 stops29h 04m
Thu 8/2010:20 am -
2 stops22h 32m
Deal found 7/31![United Airlines logo]()
$1,093
This Qantas Airways deal was found by Cheapflights users on 7/31. 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 11/41:35 pm -
2 stops25h 15m
Sun 11/81:25 pm -
2 stops40h 27m
Deal found 7/31![Qantas Airways logo]()
$2,228
This Delta deal was found by Cheapflights users on 8/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:22 am -
2 stops26h 28m
Sat 10/39:15 am -
2 stops26h 40m
Deal found 8/3![Delta logo]()
$1,144
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:44 pm -
2 stops25h 16m
Sat 9/269:30 am -
1 stop26h 59m
Deal found 8/1![United Airlines logo]()
$1,143
This United deal was found by Cheapflights users on 8/1. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm -
2 stops22h 05m
Fri 10/167:20 am -
2 stops22h 03m
Deal found 8/1![Multiple Airlines logo]()
$1,277
This KLM deal was found by Cheapflights users on 7/31. 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.
Sun 11/12:35 pm -
3 stops48h 10m
Sat 11/1410:15 pm -
2 stops56h 32m
Deal found 7/31![KLM logo]()
$2,673
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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.
Wed 12/27:00 am -
2 stops37h 05m
Sun 12/610:25 am -
2 stops27h 35m
Deal found 8/3![Multiple Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/2711:03 am -
2 stops26h 57m
Thu 9/39:30 am -
3 stops30h 56m
Deal found 7/30![United Airlines logo]()
$1,512
This Jetabroad deal was found by Cheapflights users on 8/4. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:08 pm -
2 stops23h 12m
Fri 10/309:20 am -
3 stops26h 13m
Deal found 8/4![Multiple Airlines logo]()
$1,581
This Air New Zealand deal was found by Cheapflights users on 8/1. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/293:00 pm -
2 stops26h 45m
Wed 9/307:00 am -
3 stops28h 44m
Deal found 8/1![Air New Zealand logo]()
$1,949
This SmartFares deal was found by Cheapflights users on 8/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:25 pm -
2 stops47h 35m
Wed 9/96:00 pm -
2 stops35h 45m
Deal found 8/4![Multiple Airlines logo]()
$1,717
This BusinessClass deal was found by Cheapflights users on 8/4. 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 9/34:30 pm -
3 stops47h 55m
Wed 9/96:00 am -
3 stops32h 51m
Deal found 8/4![Air New Zealand logo]()
$2,159
This Singapore Airlines deal was found by Cheapflights users on 8/2. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:15 am -
2 stops30h 15m
Sat 10/32:50 pm -
3 stops46h 54m
Deal found 8/2![Multiple Airlines logo]()
$2,695
This Condor deal was found by Cheapflights users on 8/2. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:40 pm -
3 stops45h 35m
Wed 9/1610:15 am -
3 stops46h 45m
Deal found 8/2![Multiple Airlines logo]()
$2,770
This Condor deal was found by Cheapflights users on 7/31. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:40 pm -
3 stops45h 35m
Tue 10/2010:10 pm -
3 stops59h 50m
Deal found 7/31![Multiple Airlines logo]()
$2,870
This Condor deal was found by Cheapflights users on 7/30. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:05 pm -
3 stops46h 55m
Thu 9/310:15 am -
3 stops46h 45m
Deal found 7/30![Multiple Airlines logo]()
$2,900
Last-minute flights from Seattle to New South WalesDiscover last-minute flight deals from Seattle to New South Wales. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to New South Wales. Data last updated August 5, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:40 am -
1 stop27h 40m
Sat 8/228:15 pm -
2 stops30h 50m
Deal found 8/4![Multiple Airlines logo]()
$966
This Air Canada deal was found by Cheapflights users on 8/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:40 am -
1 stop27h 40m
Sat 8/229:20 am -
1 stop26h 12m
Deal found 8/4![Air Canada logo]()
$977
This Air Canada deal was found by Cheapflights users on 8/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:20 pm -
1 stop19h 00m
Wed 9/169:20 am -
1 stop17h 45m
Deal found 8/4![Air Canada logo]()
$939
This Air Canada deal was found by Cheapflights users on 8/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:20 pm -
1 stop19h 00m
Wed 9/166:00 am -
2 stops21h 05m
Deal found 8/4![Multiple Airlines logo]()
$959
This FlightHub deal was found by Cheapflights users on 8/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:20 pm -
2 stops22h 20m
Mon 9/149:20 am -
1 stop22h 02m
Deal found 8/4![Air Canada logo]()
$970
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:50 am -
1 stop32h 30m
Mon 9/76:30 am -
2 stops29h 02m
Deal found 8/4![Air Canada logo]()
$1,002
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:32 pm -
2 stops24h 08m
Wed 9/307:00 am -
2 stops26h 42m
Deal found 8/1![American Airlines logo]()
$1,165
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/310:34 am -
1 stop27h 56m
Wed 10/212:15 pm -
2 stops22h 11m
Deal found 7/31![Multiple Airlines logo]()
$997
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:15 pm -
1 stop19h 05m
Sun 9/279:20 am -
1 stop22h 02m
Deal found 8/4![Air Canada logo]()
$987
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:50 am -
2 stops31h 50m
Sun 9/279:20 am -
1 stop17h 45m
Deal found 8/4![Air Canada logo]()
$1,008
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:00 pm -
1 stop23h 20m
Sun 9/279:20 am -
1 stop22h 02m
Deal found 8/4![Air Canada logo]()
$949
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:55 pm -
2 stops28h 45m
Tue 9/227:00 am -
2 stops26h 42m
Deal found 8/1![American Airlines logo]()
$1,140
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 August 5, 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 August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:06 am -
3 stops39h 59m
Deal found 7/31![Multiple Airlines logo]()
$531
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:02 pm -
1 stop21h 03m
Deal found 8/3![American Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:40 am -
2 stops29h 15m
Deal found 8/3![United Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 11/111:06 am -
2 stops38h 09m
Deal found 8/1![Multiple Airlines logo]()
$535
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/118:15 pm -
3 stops57h 00m
Deal found 7/31![Multiple Airlines logo]()
$547
This Delta deal was found by Cheapflights users on 7/31. 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 8/151:25 pm -
2 stops48h 25m
Deal found 7/31![Delta logo]()
$554
This SmartFares deal was found by Cheapflights users on 7/31. 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.
Wed 9/97:20 am -
1 stop18h 30m
Deal found 7/31![Alaska Airlines logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/125:50 pm -
3 stops44h 40m
Deal found 7/31![Multiple Airlines logo]()
$565
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:02 pm -
1 stop21h 03m
Deal found 8/4![American Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 9/65:22 pm -
1 stop20h 43m
Deal found 7/30![American Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 9/99:40 am -
2 stops28h 10m
Deal found 7/31![Delta logo]()
$569
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/295:32 pm -
1 stop20h 33m
Deal found 7/30![Qantas Airways logo]()
$577
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 August 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $921 (Kiwi.com) |
One-way from | $531 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $735 |
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 August 5, 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
Sun 8/9
5:04 pm-7:00 am
1 stop20h 56m
Sydney Kingsford Smith
Sun 8/23
9:30 am-9:15 pm
2 stops28h 45m
$1,030
Quickest round-trip
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sun 9/6
3:15 pm-6:50 am
1 stop22h 35m
Sydney Kingsford Smith
Tue 11/3
10:40 am-12:27 pm
1 stop20h 47m
$1,089
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Mon 8/10
8:56 am-7:00 am
2 stops29h 04m
Sydney Kingsford Smith
Thu 8/20
10:20 am-3:52 pm
2 stops22h 32m
$1,093
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Tue 9/15
12:55 pm-10:40 am
2 stops28h 45m
Coolangatta Gold Coast
Tue 9/22
7:00 am-4:42 pm
2 stops26h 42m
$1,140
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sat 8/29
12:44 pm-7:00 am
2 stops25h 16m
Sydney Kingsford Smith
Sat 9/26
9:30 am-7:29 pm
1 stop26h 59m
$1,143
SeattleSydney
SEA - SYD
SEASYD
Seattle/Tacoma Intl
Sun 9/20
11:22 am-6:50 am
2 stops26h 28m
Sydney Kingsford Smith
Sat 10/3
9:15 am-6:55 pm
2 stops26h 40m
$1,144
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Sun 10/25
7:05 pm-2:05 pm
2 stops26h 00m
Coolangatta Gold Coast
Sat 10/31
6:00 am-9:17 am
2 stops20h 17m
$1,272
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Fri 8/28
7:35 pm-10:40 am
2 stops22h 05m
Coolangatta Gold Coast
Fri 10/16
7:20 am-12:23 pm
2 stops22h 03m
$1,277
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Sun 10/25
10:10 am-12:40 pm
2 stops33h 30m
Coolangatta Gold Coast
Fri 10/30
6:00 am-6:22 pm
2 stops29h 22m
$1,336
SeattleCoolangatta
SEA - OOL
SEAOOL
Seattle/Tacoma Intl
Wed 12/2
7:00 am-2:05 pm
2 stops37h 05m
Coolangatta Gold Coast
Sun 12/6
10:25 am-8:00 pm
2 stops27h 35m
$1,364
Showing 1-10 of 37 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-NTL
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-NTL
SEA-DBO
What is the cheapest month to book a flight from Seattle to New South Wales?
Currently, August is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $748). Flying from Seattle to New South Wales in December is currently the most expensive (average of $1,690). 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?
Airfare is typical for this route at the moment.
Seattle to New South Wales flights typically cost between $615 and $1,126 in November.The cheapest round-trip price found within the last 5 days was $921 on Multiple Airlines (Nov 5-Nov 18).
How far ahead should I book a flight from Seattle to New South Wales?
Booking 47 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.
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 August 5, 2026.
Peruse reviews from past customers who have flown with ANA,Alaska Airlines, andDelta 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.
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Food
7.8
Overall
8.3
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
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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Complete your trip
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Seattle and New South Wales flights
Browse other Seattle and New South Wales flight options. Last updated on August 5, 2026.
Popular flight searches
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Top 9 airlines flying from Seattle to New South Wales
Discover the top 9 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 August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$632 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$778 | Average$1,077 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$803 | Average$1,074 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$804 | Average$1,126 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$812 | Average$898 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$827 | Average$1,341 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$841 | Average$1,201 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$842 | Average$1,223 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$947 | Average$1,276 | FlexibilityNo cancel fee | On-time78% |