$484+ Cheap flights from Seattle (SEA) to Australia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Oct 26 — Nov 21
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Australia 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 AustraliaExplore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
Explore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
This lol.travel deal was found by Cheapflights users on 9/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
1 stop19h 30m
Sun 11/811:20 am -
1 stop22h 17m
Deal found 9/23![Air Canada logo]()
$905
This lol.travel deal was found by Cheapflights users on 9/24. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:10 am -
1 stop28h 25m
Sun 11/1511:20 am -
1 stop22h 17m
Deal found 9/24![Air Canada logo]()
$950
This Expedia deal was found by Cheapflights users on 9/22. 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 10/253:15 pm -
1 stop23h 20m
Mon 11/911:20 am -
1 stop22h 17m
Deal found 9/22![Air Canada logo]()
$955
This Justfly.com deal was found by Cheapflights users on 9/21. 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 11/18:40 am -
1 stop29h 55m
Sun 11/811:20 am -
1 stop29h 37m
Deal found 9/21![Air Canada logo]()
$965
This Air Canada deal was found by Cheapflights users on 9/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:15 pm -
1 stop23h 20m
Sun 11/86:20 am -
2 stops22h 12m
Deal found 9/24![Multiple Airlines logo]()
$972
This Justfly.com deal was found by Cheapflights users on 9/21. 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 11/17:05 pm -
2 stops24h 35m
Sun 11/811:20 am -
1 stop22h 24m
Deal found 9/21![Multiple Airlines logo]()
$986
This lol.travel deal was found by Cheapflights users on 9/24. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:05 pm -
1 stop19h 40m
Sun 11/1510:45 am -
1 stop21h 52m
Deal found 9/24![Air Canada logo]()
$991
This lol.travel deal was found by Cheapflights users on 9/22. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:10 am -
1 stop28h 35m
Wed 11/2510:45 am -
1 stop25h 37m
Deal found 9/22![Air Canada logo]()
$995
This Air Canada deal was found by Cheapflights users on 9/22. 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.
Tue 10/207:15 pm -
1 stop18h 50m
Tue 10/279:45 am -
1 stop16h 42m
Deal found 9/22![Air Canada logo]()
$998
This Justfly.com deal was found by Cheapflights users on 9/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:15 pm -
1 stop23h 30m
Sun 12/1310:45 am -
1 stop29h 12m
Deal found 9/24![Air Canada logo]()
$1,045
This FlightHub deal was found by Cheapflights users on 9/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm -
1 stop19h 40m
Sun 11/2210:45 am -
1 stop21h 52m
Deal found 9/24![Air Canada logo]()
$1,047
This Air Canada deal was found by Cheapflights users on 9/22. 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.
Tue 11/177:05 pm -
2 stops24h 20m
Wed 11/256:05 am -
2 stops21h 27m
Deal found 9/22![Multiple Airlines logo]()
$1,049
Best flights from Seattle to AustraliaDiscover carefully curated flight deals from Seattle to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
Discover carefully curated flight deals from Seattle to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:05 am -
2 stops33h 00m
Wed 12/231:20 pm -
1 stop24h 09m
Deal found 9/24![United Airlines logo]()
$1,104
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:35 pm -
2 stops26h 05m
Tue 11/176:00 am -
2 stops25h 00m
Deal found 9/26![American Airlines logo]()
$1,149
This Delta deal was found by Cheapflights users on 9/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:05 am -
2 stops26h 15m
Thu 11/1910:40 am -
2 stops25h 13m
Deal found 9/23![Delta logo]()
$1,154
This oojo deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:35 pm -
2 stops26h 10m
Tue 11/172:35 pm -
2 stops28h 07m
Deal found 9/25![Qantas Airways logo]()
$1,254
This Air Canada deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 pm -
2 stops28h 10m
Tue 11/176:00 am -
2 stops21h 32m
Deal found 9/26![Multiple Airlines logo]()
$1,268
This Priceline deal was found by Cheapflights users on 9/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm -
2 stops32h 55m
Sat 11/146:10 am -
2 stops21h 52m
Deal found 9/23![Air Canada logo]()
$1,274
This Cathay Pacific deal was found by Cheapflights users on 9/24. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 am -
2 stops47h 20m
Wed 10/2112:20 pm -
1 stop38h 45m
Deal found 9/24![Cathay Pacific logo]()
$1,379
This Alaska Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:43 am -
1 stop25h 02m
Tue 10/139:45 am -
1 stop20h 31m
Deal found 9/26![Alaska Airlines logo]()
$1,543
This Ovago deal was found by Cheapflights users on 9/23. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:15 pm -
3 stops30h 55m
Sat 11/146:05 am -
3 stops31h 41m
Deal found 9/23![Air New Zealand logo]()
$1,590
This Qatar Airways deal was found by Cheapflights users on 9/23. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:50 pm -
1 stop29h 35m
Sat 11/141:20 pm -
2 stops40h 50m
Deal found 9/23![Qatar Airways logo]()
$1,699
This Singapore Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:40 am -
1 stop38h 05m
Tue 11/35:05 pm -
1 stop30h 00m
Deal found 9/25![Singapore Airlines logo]()
$1,803
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/263:30 pm -
1 stop22h 50m
Tue 3/1611:50 am -
1 stop18h 22m
Deal found 9/25![United Airlines logo]()
$1,133
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:24 pm -
2 stops26h 46m
Tue 11/176:10 am -
2 stops25h 50m
Deal found 9/26![American Airlines logo]()
$1,181
This Delta deal was found by Cheapflights users on 9/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:42 am -
2 stops27h 48m
Sat 11/1410:40 am -
2 stops25h 13m
Deal found 9/23![Delta logo]()
$1,204
This KAYAK deal was found by Cheapflights users on 9/21. 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 11/33:59 pm -
2 stops25h 21m
Mon 11/912:20 pm -
2 stops25h 08m
Deal found 9/21![Multiple Airlines logo]()
$1,276
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Tue 10/2010:44 am -
2 stops32h 51m
Tue 10/278:10 am -
2 stops22h 10m
Deal found 9/23![United Airlines logo]()
$1,180
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:37 pm -
2 stops29h 28m
Tue 10/279:50 am -
2 stops24h 17m
Deal found 9/26![American Airlines logo]()
$1,181
This Qantas Airways deal was found by Cheapflights users on 9/24. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:59 pm -
2 stops28h 16m
Mon 11/236:00 am -
2 stops26h 08m
Deal found 9/24![Qantas Airways logo]()
$1,304
This KLM deal was found by Cheapflights users on 9/21. 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.
Sun 11/152:35 pm -
3 stops45h 50m
Mon 11/236:35 am -
3 stops48h 12m
Deal found 9/21![KLM logo]()
$2,676
This Air Canada deal was found by Cheapflights users on 9/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm -
2 stops25h 50m
Sat 11/146:00 am -
2 stops26h 37m
Deal found 9/23![Multiple Airlines logo]()
$1,282
This American Airlines deal was found by Cheapflights users on 9/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:27 am -
2 stops29h 13m
Sun 11/156:00 am -
2 stops28h 00m
Deal found 9/24![American Airlines logo]()
$1,185
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:31 pm -
1 stop24h 29m
Thu 11/2610:10 am -
1 stop21h 30m
Deal found 9/25![Delta logo]()
$1,321
This Air Canada deal was found by Cheapflights users on 9/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:05 pm -
2 stops27h 45m
Wed 11/46:10 am -
2 stops30h 42m
Deal found 9/23![Air Canada logo]()
$1,454
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 12/253:24 pm -
1 stop22h 06m
Tue 1/1211:20 am -
2 stops29h 19m
Deal found 9/21![United Airlines logo]()
$1,222
This FlightHub deal was found by Cheapflights users on 9/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:10 am -
2 stops33h 40m
Sun 10/258:30 am -
2 stops49h 01m
Deal found 9/21![Cathay Pacific logo]()
$1,501
This Trip.com deal was found by Cheapflights users on 9/22. 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.
Fri 11/67:05 pm -
2 stops25h 50m
Fri 11/134:35 pm -
2 stops35h 57m
Deal found 9/22![Multiple Airlines logo]()
$1,298
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Fri 12/255:35 pm -
1 stop19h 55m
Fri 1/1511:20 am -
2 stops27h 52m
Deal found 9/21![United Airlines logo]()
$1,222
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:39 pm -
2 stops33h 46m
Mon 11/236:05 am -
3 stops34h 52m
Deal found 9/24![Air New Zealand logo]()
$1,659
This Delta deal was found by Cheapflights users on 9/21. 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.
Wed 11/257:55 pm -
2 stops41h 05m
Sat 12/1910:10 am -
1 stop29h 32m
Deal found 9/21![Delta logo]()
$1,393
This Air Canada deal was found by Cheapflights users on 9/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:40 am -
2 stops32h 55m
Wed 11/46:30 am -
2 stops27h 07m
Deal found 9/23![Air Canada logo]()
$1,533
Last-minute flights from Seattle to AustraliaDiscover last-minute flight deals from Seattle to Australia. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Australia. Data last updated September 26, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 9/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am -
1 stop43h 55m
Tue 10/2712:25 am -
1 stop24h 20m
Deal found 9/22![Cathay Pacific logo]()
$1,280
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Tue 9/2911:10 pm -
2 stops42h 45m
Wed 10/2810:35 am -
1 stop36h 30m
Deal found 9/22![Multiple Airlines logo]()
$1,285
This Air Canada deal was found by Cheapflights users on 9/22. 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.
Tue 10/207:15 pm -
1 stop18h 50m
Tue 10/279:45 am -
1 stop16h 42m
Deal found 9/22![Air Canada logo]()
$998
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:37 pm -
2 stops24h 53m
Tue 10/276:45 am -
2 stops23h 22m
Deal found 9/22![American Airlines logo]()
$1,260
This lol.travel deal was found by Cheapflights users on 9/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
1 stop19h 30m
Sun 11/811:20 am -
1 stop22h 17m
Deal found 9/23![Air Canada logo]()
$905
This Expedia deal was found by Cheapflights users on 9/22. 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 10/253:15 pm -
1 stop23h 20m
Mon 11/911:20 am -
1 stop22h 17m
Deal found 9/22![Air Canada logo]()
$955
This Air Canada deal was found by Cheapflights users on 9/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:15 pm -
1 stop23h 20m
Sun 11/86:20 am -
2 stops22h 12m
Deal found 9/24![Multiple Airlines logo]()
$972
This KAYAK deal was found by Cheapflights users on 9/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:57 pm -
1 stop18h 38m
Tue 11/1011:20 am -
1 stop17h 12m
Deal found 9/22![Multiple Airlines logo]()
$991
This Air Canada deal was found by Cheapflights users on 9/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:10 am -
1 stop28h 35m
Thu 10/299:45 am -
1 stop21h 52m
Deal found 9/21![Air Canada logo]()
$1,212
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:40 pm -
2 stops36h 15m
Tue 11/2410:35 am -
1 stop36h 30m
Deal found 9/23![Multiple Airlines logo]()
$1,286
This Air Canada deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:15 pm -
1 stop23h 20m
Sun 11/811:20 am -
1 stop26h 02m
Deal found 9/25![Air Canada logo]()
$989
This Air Canada deal was found by Cheapflights users on 9/22. 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.
Wed 10/2810:10 am -
1 stop28h 25m
Thu 11/1911:20 am -
1 stop17h 12m
Deal found 9/22![Air Canada logo]()
$993
One-way flights from Seattle to AustraliaSearch for one-way flight options from Seattle to Australia. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
Search for one-way flight options from Seattle to Australia. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Booking.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/89:30 pm -
1 stop41h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Philippine Airlines logo]()
$484
This SmartFares deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates ” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1710:30 pm -
1 stop41h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Philippine Airlines logo]()
$487
This Trip.com deal was found by Cheapflights users on 9/22. 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 2/248:40 am -
1 stop31h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$487
This SmartFares deal was found by Cheapflights users on 9/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2110:30 pm -
1 stop41h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Philippine Airlines logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Tue 2/238:40 am -
2 stops52h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Sun 2/218:40 am -
2 stops51h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 11/48:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Sat 2/278:40 am -
2 stops52h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$512
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/178:40 am -
2 stops48h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$517
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Tue 10/278:09 pm -
1 stop40h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 2/128:40 am -
2 stops52h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$530
Find flight deals from Seattle to Australia
Keep the following information in mind while searching for Seattle to Australia flight deals. Data was last updated September 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $905 (lol.travel) |
One-way from | $484 (Booking.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,041 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
Use the filters below to find and compare flights from Seattle to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Sat 2/27
8:40 am-8:25 am
1 stop31h 45m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$521
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Mon 11/9
5:59 pm-9:00 am
1 stop20h 01m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$541
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Mon 10/26
6:30 pm-8:40 am
1 stop20h 10m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$544
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Mon 11/9
3:00 pm-9:00 am
2 stops23h 00m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$546
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Wed 11/18
12:45 pm-9:05 am
2 stops25h 20m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$548
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Mon 11/16
8:30 am-9:05 am
2 stops29h 35m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$548
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Wed 11/11
11:30 am-8:30 am
2 stops26h 00m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$568
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 2/22
9:30 pm-7:20 am
1 stop41h 50m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$578
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 2/22
9:40 pm-8:25 am
2 stops42h 45m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$579
Quickest round-trip
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Thu 12/31
3:40 pm-6:25 am
1 stop19h 45m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$590
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Seattle with our price prediction graph.
SEA-SYD
SEA-BNE
SEA-PER
SEA-MEL
SEA-CNS
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 Australia
SEA-AU0
SEA-SYD
SEA-BNE
SEA-PER
SEA-MEL
What is the cheapest month to book a flight from Seattle to Australia?
Currently, February is the cheapest month in which you can book a flight from Seattle to Australia (average of $1,036). Flying from Seattle to Australia in December is currently the most expensive (average of $1,698). 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 far ahead should I book a flight from Seattle to Australia?
Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Australia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated September 26, 2026.
Peruse reviews from past customers who have flown with ANA,Delta, andQantas Airways from Seattle to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Entertainment
8.0
Boarding
8.5
Food
7.8
Crew
8.7
Comfort
8.2
Overall
8.3
Reviews
1 / 20
8.0
ExcellentRyan,Aug 2026
JFK - HND
Related info for your journey
Find useful and relevant information for your journey from Seattle to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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Popular flights
Top regions
Alternative routes for Seattle to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Australia by cabin class
Find flights from Seattle to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Australia flights
Browse other Seattle and Australia flight options. Last updated on September 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 10 airlines flying from Seattle to Australia
Discover the top 10 airlines that operate flights from Seattle to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$1,517 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$570 | Average$1,492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$583 | Average$627 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$796 | Average$1,145 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$819 | Average$1,328 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$822 | Average$894 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$845 | Average$1,383 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$947 | Average$1,450 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$975 | Average$1,129 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,153 | Average$1,339 | FlexibilityNo cancel fee | On-time72% |