$522+ Cheap flights from Seattle (SEA) to Australia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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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 August 10, 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 August 10, 2026.
This Air Canada deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:15 pm -
1 stop23h 20m
Mon 11/3011:20 am -
1 stop26h 02m
Deal found 8/5![Air Canada logo]()
$938
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:00 pm -
1 stop23h 20m
Wed 9/169:20 am -
1 stop22h 02m
Deal found 8/6![Air Canada logo]()
$940
This lol.travel deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Mon 9/1410:50 am -
1 stop27h 30m
Tue 9/227:30 am -
2 stops19h 35m
Deal found 8/9![Air Canada logo]()
$946
This FlightHub deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:57 pm -
1 stop18h 38m
Wed 11/2511:20 am -
1 stop17h 07m
Deal found 8/5![Multiple Airlines logo]()
$948
This FlightHub deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/2511:37 am -
1 stop26h 58m
Wed 11/411:20 am -
1 stop17h 07m
Deal found 8/9![Multiple Airlines logo]()
$949
This Air Canada deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 9/277:15 pm -
1 stop19h 05m
Wed 10/146:00 am -
2 stops21h 52m
Deal found 8/9![Multiple Airlines logo]()
$959
This lol.travel deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/307:20 pm -
2 stops24h 20m
Sun 9/139:20 am -
1 stop26h 12m
Deal found 8/8![Multiple Airlines logo]()
$960
This Goibibo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Goibibo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:15 pm -
1 stop23h 20m
Sun 11/298:30 am -
2 stops19h 57m
Deal found 8/9![Multiple Airlines logo]()
$963
This Air Canada deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 11/103:15 pm -
1 stop23h 20m
Sun 11/228:30 am -
2 stops19h 57m
Deal found 8/9![Air Canada logo]()
$965
This Air Canada deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:15 pm -
2 stops23h 10m
Sun 10/410:20 am -
1 stop22h 02m
Deal found 8/5![Multiple Airlines logo]()
$966
This lol.travel deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Mon 9/1410:50 am -
1 stop27h 15m
Tue 9/2210:15 am -
1 stop16h 50m
Deal found 8/9![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am -
1 stop27h 25m
Wed 8/2610:00 am -
1 stop17h 05m
Deal found 8/5![Air Canada logo]()
$980
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 August 10, 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 August 10, 2026.
This Air Canada deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/167:20 pm -
1 stop18h 45m
Wed 8/2610:00 am -
1 stop25h 32m
Deal found 8/8![Air Canada logo]()
$982
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 8/1310:55 am -
1 stop28h 20m
Wed 8/269:30 am -
1 stop19h 04m
Deal found 8/9![United Airlines logo]()
$1,038
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:50 am -
1 stop27h 15m
Sat 9/198:45 pm -
2 stops30h 20m
Deal found 8/6![Multiple Airlines logo]()
$1,049
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/249:35 pm -
1 stop39h 55m
Mon 11/2310:40 am -
1 stop18h 25m
Deal found 8/9![Delta logo]()
$1,098
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Sat 10/248:36 pm -
2 stops44h 09m
Fri 10/3010:55 am -
2 stops27h 55m
Deal found 8/7![Air New Zealand logo]()
$1,219
This American Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:22 pm -
2 stops26h 43m
Thu 9/106:10 am -
2 stops26h 47m
Deal found 8/6![American Airlines logo]()
$1,279
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:25 pm -
1 stop32h 05m
Wed 9/3010:10 pm -
1 stop31h 15m
Deal found 8/6![Qatar Airways logo]()
$1,280
This Qantas Airways deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Fri 9/115:44 pm -
2 stops23h 21m
Sat 9/192:00 pm -
2 stops22h 39m
Deal found 8/9![Qantas Airways logo]()
$1,407
This Cathay Pacific deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/2111:45 am -
1 stop28h 05m
Sun 10/258:30 am -
1 stop40h 40m
Deal found 8/8![Cathay Pacific logo]()
$1,606
This BusinessClass deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:15 am -
1 stop61h 45m
Wed 9/96:15 pm -
1 stop55h 30m
Deal found 8/5![Singapore Airlines logo]()
$2,146
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/249:35 pm -
1 stop39h 55m
Mon 11/1610:40 am -
1 stop18h 25m
Deal found 8/9![Delta logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:40 am -
2 stops29h 50m
Mon 9/2110:55 am -
1 stop18h 25m
Deal found 8/6![United Airlines logo]()
$1,109
This Asiana Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1912:10 am -
1 stop37h 10m
Thu 12/3110:20 am -
1 stop22h 35m
Deal found 8/8![Asiana Airlines logo]()
$2,242
This Air New Zealand deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:15 pm -
2 stops22h 20m
Tue 1/129:55 am -
2 stops25h 52m
Deal found 8/5![Multiple Airlines logo]()
$1,171
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/257:32 am -
1 stop29h 28m
Mon 11/2310:10 am -
1 stop24h 07m
Deal found 8/9![Delta logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/277:25 pm -
1 stop19h 50m
Sun 10/410:30 am -
2 stops25h 07m
Deal found 8/8![United Airlines logo]()
$1,109
This SmartFares deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/247:20 am -
2 stops23h 05m
Mon 10/197:45 pm -
2 stops42h 49m
Deal found 8/8![Multiple Airlines logo]()
$1,185
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Mon 10/262:30 pm -
1 stop22h 30m
Wed 11/2510:10 am -
1 stop21h 30m
Deal found 8/9![Delta logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:20 pm -
2 stops24h 20m
Wed 9/166:20 am -
2 stops26h 54m
Deal found 8/6![United Airlines logo]()
$1,153
This United deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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
Tue 9/86:20 am -
2 stops26h 54m
Deal found 8/8![Multiple Airlines logo]()
$1,199
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:45 pm -
1 stop21h 05m
Wed 11/1112:00 pm -
1 stop22h 17m
Deal found 8/5![Delta logo]()
$1,100
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:25 pm -
1 stop30h 05m
Sat 9/510:00 pm -
1 stop31h 15m
Deal found 8/6![Qatar Airways logo]()
$1,467
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.
Thu 2/47:05 pm -
2 stops25h 50m
Mon 2/86:00 am -
2 stops30h 22m
Deal found 8/4![Air Canada logo]()
$1,484
This BYOjet deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:59 pm -
2 stops30h 16m
Wed 9/306:05 pm -
3 stops36h 34m
Deal found 8/9![Qantas Airways logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/301:16 pm -
2 stops28h 24m
Tue 9/86:20 am -
2 stops29h 09m
Deal found 8/8![United Airlines logo]()
$1,154
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:35 pm -
1 stop26h 15m
Tue 10/1311:00 am -
1 stop19h 27m
Deal found 8/6![Delta logo]()
$1,100
This Jetabroad deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:37 pm -
2 stops24h 03m
Wed 11/46:00 am -
3 stops27h 42m
Deal found 8/6![Qantas Airways logo]()
$1,501
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:15 pm -
2 stops26h 05m
Mon 10/56:00 am -
2 stops26h 22m
Deal found 8/6![Multiple Airlines logo]()
$1,248
This BusinessClass deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:30 pm -
3 stops29h 25m
Thu 9/104:30 pm -
2 stops40h 15m
Deal found 8/6![Air New Zealand logo]()
$1,681
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/313:30 pm -
2 stops28h 45m
Tue 9/86:20 am -
2 stops25h 04m
Deal found 8/8![United Airlines logo]()
$1,157
Last-minute flights from Seattle to AustraliaDiscover last-minute flight deals from Seattle to Australia. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Australia. Data last updated August 10, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/303:00 pm -
1 stop23h 20m
Sun 9/139:20 am -
1 stop26h 12m
Deal found 8/8![Air Canada logo]()
$949
This lol.travel deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/307:20 pm -
2 stops24h 20m
Sun 9/139:20 am -
1 stop26h 12m
Deal found 8/8![Multiple Airlines logo]()
$960
This Air Canada deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/67:20 pm -
2 stops22h 20m
Sun 9/139:20 am -
1 stop17h 45m
Deal found 8/7![Air Canada logo]()
$970
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:00 pm -
1 stop23h 20m
Mon 9/149:20 am -
1 stop22h 02m
Deal found 8/6![Air Canada logo]()
$938
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:00 pm -
1 stop23h 20m
Wed 9/169:20 am -
1 stop22h 02m
Deal found 8/6![Air Canada logo]()
$940
This lol.travel deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Mon 9/1410:50 am -
1 stop27h 30m
Tue 9/227:30 am -
2 stops19h 35m
Deal found 8/9![Air Canada logo]()
$946
This FlightHub deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:50 am -
1 stop32h 30m
Wed 10/147:30 am -
2 stops20h 22m
Deal found 8/5![Air Canada logo]()
$964
This lol.travel deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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.
Mon 9/1410:50 am -
1 stop27h 15m
Tue 9/2210:15 am -
1 stop16h 50m
Deal found 8/9![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:15 pm -
2 stops23h 10m
Sun 10/410:20 am -
1 stop22h 02m
Deal found 8/5![Multiple Airlines logo]()
$966
This Air Canada deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/2010:50 am -
1 stop27h 30m
Sat 10/39:20 am -
1 stop26h 12m
Deal found 8/7![Air Canada logo]()
$976
This Travelocity deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:15 pm -
1 stop19h 05m
Wed 10/1410:20 am -
1 stop30h 22m
Deal found 8/9![Air Canada logo]()
$939
This Air Canada deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 9/277:15 pm -
1 stop19h 05m
Wed 10/146:00 am -
2 stops21h 52m
Deal found 8/9![Multiple Airlines logo]()
$959
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 August 10, 2026.
Search for one-way flight options from Seattle to Australia. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This American Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:00 am -
1 stop30h 45m
Deal found 8/6![American Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:30 pm -
1 stop22h 25m
Deal found 8/5![United Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:30 pm -
1 stop23h 45m
Deal found 8/6![United Airlines logo]()
$533
This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 8/1911:40 am -
1 stop26h 50m
Deal found 8/9![American Airlines logo]()
$533
This Trip.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 11/3010:10 am -
3 stops45h 35m
Deal found 8/9![Multiple Airlines logo]()
$540
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 8/7![Delta logo]()
$554
This SmartFares deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:20 am -
1 stop18h 30m
Deal found 8/6![Alaska Airlines logo]()
$560
This BYOjet deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:20 am -
1 stop18h 30m
Deal found 8/9![Alaska Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:22 pm -
1 stop20h 43m
Deal found 8/6![American Airlines logo]()
$563
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:59 am -
1 stop27h 51m
Deal found 8/6![Delta logo]()
$565
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 1/193:30 pm -
1 stop19h 50m
Deal found 8/7![United Airlines logo]()
$567
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 9/65:10 pm -
1 stop21h 20m
Deal found 8/9![Multiple Airlines logo]()
$568
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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $938 (Air Canada) |
One-way from | $522 (American Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $796 |
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 2,558,603 searches. Data last updated August 10, 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
SeattleBrisbane
SEA Seattle/Tacoma Intl - BNE Brisbane
SEABNE
Seattle/Tacoma Intl
Sun 8/16
7:20 pm-7:05 am
1 stop18h 45m
Brisbane
Wed 8/26
10:00 am-6:32 pm
1 stop25h 32m
$982
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Thu 8/13
10:55 am-8:15 am
1 stop28h 20m
Melbourne
Wed 8/26
9:30 am-11:34 am
1 stop19h 04m
$1,038
SeattleBrisbane
SEA Seattle/Tacoma Intl - BNE Brisbane
SEABNE
Seattle/Tacoma Intl
Fri 9/11
10:50 am-7:05 am
1 stop27h 15m
Brisbane
Sat 9/19
8:45 pm-10:05 am
2 stops30h 20m
$1,049
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Sat 10/24
9:35 pm-7:30 am
1 stop39h 55m
Sydney Kingsford Smith
Mon 11/23
10:40 am-10:05 am
1 stop18h 25m
$1,098
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Sat 10/24
9:35 pm-7:30 am
1 stop39h 55m
Sydney Kingsford Smith
Mon 11/16
10:40 am-10:05 am
1 stop18h 25m
$1,098
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Sun 10/25
7:32 am-7:00 am
1 stop29h 28m
Melbourne
Mon 11/23
10:10 am-3:17 pm
1 stop24h 07m
$1,100
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Mon 10/26
2:30 pm-7:00 am
1 stop22h 30m
Melbourne
Wed 11/25
10:10 am-12:40 pm
1 stop21h 30m
$1,100
Quickest round-trip
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Sun 11/1
5:45 pm-9:50 am
1 stop21h 05m
Melbourne
Wed 11/11
12:00 pm-3:17 pm
1 stop22h 17m
$1,100
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Mon 10/5
12:35 pm-8:50 am
1 stop26h 15m
Melbourne
Tue 10/13
11:00 am-12:27 pm
1 stop19h 27m
$1,100
SeattleMelbourne
SEA Seattle/Tacoma Intl - MEL Melbourne
SEAMEL
Seattle/Tacoma Intl
Wed 9/9
8:40 am-7:30 am
2 stops29h 50m
Melbourne
Mon 9/21
10:55 am-12:20 pm
1 stop18h 25m
$1,109
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-MEL
SEA-SYD
SEA-PER
SEA-BNE
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-MEL
SEA-SYD
SEA-PER
SEA-BNE
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 $968). Flying from Seattle to Australia in December is currently the most expensive (average of $1,679). 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 90 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 August 10, 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.
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
IAH - HND
Boarding
8.5
Crew
8.7
Comfort
8.2
Entertainment
8.0
Food
7.8
Overall
8.3
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 Australia. 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 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 August 10, 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 2,558,603 searches. Data last updated August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$1,486 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$385 | Average$1,100 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$583 | Average$632 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$803 | Average$1,270 | 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$841 | Average$1,368 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$842 | Average$1,401 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$947 | Average$1,470 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,153 | Average$1,271 | FlexibilityNo cancel fee | On-time72% |