$498+ Cheap flights from Washington 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Cheapest flights from Washington to AustraliaExplore the most affordable flight options available from Washington to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Washington to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
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 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 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 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 Air Canada deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 10/267:05 pm -
1 stop19h 30m
Mon 11/211:20 am -
1 stop26h 02m
Deal found 9/28![Air Canada logo]()
$993
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 11/87:05 pm -
2 stops26h 35m
Sun 11/156:20 am -
2 stops22h 12m
Deal found 9/24![Multiple Airlines logo]()
$997
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 -
2 stops27h 25m
Sun 11/88:30 am -
2 stops20h 02m
Deal found 9/24![Air Canada logo]()
$999
This FlightHub deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/293:15 pm -
1 stop23h 20m
Sun 12/611:20 am -
1 stop17h 12m
Deal found 9/27![Air Canada logo]()
$1,003
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.
Sun 11/810:10 am -
1 stop28h 25m
Sun 11/2211:20 am -
1 stop22h 17m
Deal found 9/24![Air Canada logo]()
$1,005
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.
Mon 10/2610:10 am -
1 stop28h 35m
Mon 11/210:45 am -
1 stop16h 47m
Deal found 9/26![Air Canada logo]()
$1,036
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
Best flights from Washington to AustraliaDiscover carefully curated flight deals from Washington to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Washington to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/166:30 am -
1 stop29h 20m
Tue 6/89:15 am -
1 stop21h 52m
Deal found 9/27![Delta logo]()
$1,098
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/169:14 am -
3 stops26h 11m
Tue 6/810:20 am -
2 stops21h 16m
Deal found 9/25![Multiple Airlines logo]()
$1,099
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 oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am -
2 stops33h 00m
Sun 11/158:20 am -
2 stops30h 37m
Deal found 9/24![Air New Zealand logo]()
$1,150
This American Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Mon 10/191:37 pm -
2 stops29h 18m
Sat 10/319:15 am -
2 stops23h 10m
Deal found 9/27![American Airlines logo]()
$1,246
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 Cathay Pacific deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Sat 10/3111:25 am -
1 stop41h 40m
Wed 11/43:30 pm -
1 stop36h 15m
Deal found 9/27![Cathay Pacific logo]()
$1,373
This Air Canada deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 stops44h 20m
Wed 11/46:10 am -
2 stops21h 52m
Deal found 9/27![Air Canada logo]()
$1,492
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/128:40 am -
1 stop38h 10m
Sun 2/2110:15 am -
1 stop63h 20m
Deal found 9/24![Singapore Airlines logo]()
$1,613
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/143:50 pm -
2 stops34h 20m
Sat 2/2010:00 pm -
1 stop32h 10m
Deal found 9/24![Qatar Airways logo]()
$1,655
This China Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:10 am -
1 stop41h 05m
Wed 11/410:10 pm -
1 stop39h 00m
Deal found 9/28![China Airlines logo]()
$2,043
This Ovago deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 12/1211:30 pm -
1 stop26h 50m
Sat 1/910:35 pm -
1 stop37h 35m
Deal found 9/28![EVA Air logo]()
$2,181
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:30 am -
3 stops24h 55m
Tue 11/1711:15 am -
2 stops20h 55m
Deal found 9/26![Multiple Airlines logo]()
$1,099
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:30 pm -
2 stops23h 50m
Tue 11/310:40 am -
2 stops24h 44m
Deal found 9/28![Delta logo]()
$1,103
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.
Tue 10/201:05 pm -
1 stop24h 50m
Tue 12/111:50 am -
1 stop17h 48m
Deal found 9/25![United Airlines logo]()
$1,138
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:25 pm -
2 stops24h 05m
Wed 11/1810:40 am -
2 stops25h 13m
Deal found 9/26![Delta logo]()
$1,103
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.
Sun 10/181:05 pm -
1 stop24h 50m
Tue 12/111:50 am -
1 stop17h 48m
Deal found 9/25![United Airlines logo]()
$1,138
This Qantas Airways deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 2/191:23 pm -
2 stops22h 02m
Mon 3/82:05 pm -
1 stop25h 37m
Deal found 9/27![Multiple Airlines logo]()
$1,149
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/123:15 pm -
2 stops25h 10m
Sun 2/2112:05 pm -
2 stops24h 47m
Deal found 9/25![Air New Zealand logo]()
$1,267
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 9/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:05 pm -
2 stops39h 50m
Tue 11/178:40 pm -
3 stops55h 07m
Deal found 9/26![KLM logo]()
$2,653
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 Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/191:30 pm -
2 stops24h 00m
Mon 3/810:40 am -
2 stops26h 42m
Deal found 9/28![Delta logo]()
$1,153
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.
Sun 12/65:05 am -
2 stops30h 55m
Sun 12/1311:50 am -
1 stop19h 30m
Deal found 9/23![United Airlines logo]()
$1,154
This Air New Zealand 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:15 pm -
2 stops22h 20m
Mon 12/711:50 am -
2 stops23h 42m
Deal found 9/24![Multiple Airlines logo]()
$1,171
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 10/284:24 pm -
1 stop22h 06m
Wed 11/410:40 am -
1 stop23h 04m
Deal found 9/28![Delta logo]()
$1,163
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 11/2712:45 pm -
2 stops25h 20m
Thu 12/1011:20 am -
2 stops29h 01m
Deal found 9/25![United Airlines logo]()
$1,203
This Air New Zealand deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Wed 11/113:48 pm -
2 stops24h 37m
Wed 11/1812:05 pm -
2 stops24h 47m
Deal found 9/27![Multiple Airlines logo]()
$1,218
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.
Sun 2/148:40 am -
1 stop29h 40m
Sat 2/206:35 pm -
1 stop31h 00m
Deal found 9/25![Singapore Airlines logo]()
$1,681
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
Last-minute flights from Washington to AustraliaDiscover last-minute flight deals from Washington to Australia. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Australia. Data last updated September 29, 2026 and is based on user searches.
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.
Sun 10/181:05 pm -
1 stop24h 50m
Tue 12/111:50 am -
1 stop17h 48m
Deal found 9/25![United Airlines logo]()
$1,138
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:40 pm -
2 stops44h 40m
Wed 10/2810:20 am -
2 stops40h 43m
Deal found 9/23![Multiple Airlines logo]()
$1,010
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 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 -
2 stops27h 25m
Sun 11/88:30 am -
2 stops20h 02m
Deal found 9/24![Air Canada logo]()
$999
This Air Canada deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/257:05 pm -
2 stops23h 15m
Sun 11/111:20 am -
1 stop26h 02m
Deal found 9/27![Multiple Airlines logo]()
$1,020
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 9/28. Clicking the “Pick Dates” 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 10/267:05 pm -
1 stop19h 30m
Mon 11/211:20 am -
1 stop26h 02m
Deal found 9/28![Air Canada logo]()
$993
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 11/86:20 am -
2 stops22h 12m
Deal found 9/25![Multiple Airlines logo]()
$1,009
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.
Mon 10/2610:10 am -
1 stop28h 35m
Mon 11/210:45 am -
1 stop16h 47m
Deal found 9/26![Air Canada logo]()
$1,036
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.
Mon 10/263:15 pm -
1 stop23h 30m
Mon 11/26:10 am -
2 stops21h 22m
Deal found 9/26![Multiple Airlines logo]()
$1,066
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:49 pm -
1 stop24h 06m
Mon 11/22:05 pm -
1 stop25h 35m
Deal found 9/26![Qantas Airways logo]()
$1,091
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.
Mon 10/2612:49 pm -
2 stops26h 11m
Mon 11/211:10 am -
2 stops24h 29m
Deal found 9/26![American Airlines logo]()
$1,099
One-way flights from Washington to AustraliaSearch for one-way flight options from Washington to Australia. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Washington to Australia. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/288:09 pm -
1 stop40h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$501
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.
Tue 11/38:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$505
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 12/102:07 pm -
1 stop21h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$524
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$527
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 9/28![Multiple Airlines logo]()
$533
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$534
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:09 pm -
1 stop39h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$536
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:59 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Qantas Airways logo]()
$542
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.
Wed 12/28:40 am -
1 stop31h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$547
Find flight deals from Washington to Australia
Keep the following information in mind while searching for Washington to Australia flight deals. Data was last updated September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $950 (lol.travel) |
One-way from | $498 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,044 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 29, 2026.
Use the filters below to find and compare flights from Washington to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Thu 12/10
2:07 pm-6:25 am
1 stop21h 18m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$524
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Wed 12/2
8:40 am-8:25 am
1 stop31h 45m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$547
SeattleBrisbane
SEA Seattle/Tacoma Intl - BNE Brisbane
SEABNE
Seattle/Tacoma Intl
Tue 10/20
8:00 pm-5:00 am
1 stop40h 00m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$563
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Sat 11/7
10:56 pm-7:00 am
2 stops37h 04m
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 11/30
9:30 pm-7:20 am
1 stop41h 50m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$568
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
$568
SeattleSydney
SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith
SEASYD
Seattle/Tacoma Intl
Mon 11/9
12:20 pm-7:00 am
3 stops47h 40m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$573
SpokaneSydney
GEG Spokane - SYD Sydney Kingsford Smith
GEGSYD
Spokane
Tue 12/8
12:30 pm-9:20 am
1 stop25h 50m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$582
SeattlePerth
SEA Seattle/Tacoma Intl - PER Perth
SEAPER
Seattle/Tacoma Intl
Mon 11/30
11:00 am-8:25 am
2 stops53h 25m
Perth
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$584
SpokaneSydney
GEG Spokane - SYD Sydney Kingsford Smith
GEGSYD
Spokane
Wed 12/9
1:53 pm-6:25 am
2 stops45h 32m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$585
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Washington with our price prediction graph.
SEA-SYD
SEA-BNE
GEG-SYD
GEG-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 Washington to Australia
USWA-AU0
SEA-SYD
SEA-BNE
GEG-SYD
GEG-BNE
What is the cheapest month to book a flight from State of Washington to Australia?
Currently, February is the cheapest month in which you can book a flight from State of Washington to Australia (average of $1,036). Flying from State of Washington 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 State of Washington to Australia?
The best time to book flights from State of Washington to Australia is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Related info for your journey
Find useful and relevant information for your journey from Washington 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.
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Alternative routes for Washington 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 Washington to Australia by cabin class
Find flights from Washington to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Australia flights
Browse other Washington and Australia flight options. Last updated on September 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Australia
Find the right flight back to Washington after your stay in Australia
Washington to Australia flights
Consider these flights traveling from Washington to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 10 airlines flying from Washington to Australia
Discover the top 10 airlines that operate flights from Washington 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 29, 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$598 | Average$1,265 | FlexibilityNo cancel fee | On-time69% | |
| 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$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% |