$532+ Cheap flights from Idaho 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SYD
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Australia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Australia
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Cheapest flights from Idaho to AustraliaExplore the most affordable flight options available from Idaho to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Idaho to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Bravofly deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:24 pm -
1 stop20h 36m
Wed 11/112:05 pm -
1 stop25h 35m
Deal found 9/20![Qantas Airways logo]()
$1,016
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Tue 11/102:05 pm -
1 stop25h 35m
Deal found 9/19![Qantas Airways logo]()
$1,050
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:05 am -
2 stops30h 30m
Thu 11/2611:20 am -
2 stops26h 20m
Deal found 9/17![Multiple Airlines logo]()
$1,055
This Qantas Airways deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:24 pm -
1 stop20h 36m
Wed 11/119:25 pm -
2 stops20h 31m
Deal found 9/20![Multiple Airlines logo]()
$1,058
This Qantas Airways deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Tue 11/1011:15 am -
2 stops22h 07m
Deal found 9/18![Multiple Airlines logo]()
$1,059
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/207:00 am -
2 stops31h 35m
Thu 11/2611:20 am -
2 stops42h 18m
Deal found 9/17![Multiple Airlines logo]()
$1,064
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Fri 10/167:46 pm -
2 stops42h 34m
Wed 11/2511:20 am -
2 stops28h 37m
Deal found 9/17![Multiple Airlines logo]()
$1,076
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/17:00 am -
2 stops31h 35m
Sat 11/2111:20 am -
2 stops26h 21m
Deal found 9/17![Multiple Airlines logo]()
$1,088
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/2411:50 am -
1 stop17h 48m
Deal found 9/17![United Airlines logo]()
$1,091
This oojo deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
1 stop28h 50m
Tue 11/101:10 pm -
1 stop28h 42m
Deal found 9/19![Multiple Airlines logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:05 pm -
1 stop24h 25m
Thu 12/311:20 am -
1 stop18h 08m
Deal found 9/20![United Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/141:05 pm -
1 stop24h 25m
Sun 11/2211:20 am -
1 stop17h 18m
Deal found 9/17![United Airlines logo]()
$1,128
Best flights from Idaho to AustraliaDiscover carefully curated flight deals from Idaho to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Idaho to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Qantas Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Wed 11/119:25 pm -
2 stops20h 31m
Deal found 9/19![Multiple Airlines logo]()
$1,059
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:05 pm -
1 stop24h 25m
Wed 12/211:20 am -
1 stop18h 08m
Deal found 9/20![United Airlines logo]()
$1,127
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:03 pm -
2 stops22h 22m
Wed 11/112:05 pm -
1 stop26h 37m
Deal found 9/19![American Airlines logo]()
$1,310
This Qantas Airways deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Tue 11/1011:15 am -
2 stops22h 07m
Deal found 9/18![Multiple Airlines logo]()
$1,059
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:00 am -
2 stops32h 30m
Sun 11/2211:20 am -
2 stops27h 51m
Deal found 9/19![United Airlines logo]()
$1,132
This Qantas Airways deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1612:36 pm -
2 stops22h 49m
Tue 6/810:20 am -
3 stops22h 47m
Deal found 9/20![Multiple Airlines logo]()
$1,060
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/191:38 pm -
2 stops23h 52m
Mon 11/2311:20 am -
2 stops27h 51m
Deal found 9/17![United Airlines logo]()
$1,132
This Qantas Airways deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/310:00 am -
3 stops25h 25m
Wed 2/179:25 pm -
2 stops20h 32m
Deal found 9/18![Multiple Airlines logo]()
$1,060
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/181:38 pm -
2 stops24h 22m
Fri 11/2711:50 am -
1 stop17h 48m
Deal found 9/17![United Airlines logo]()
$1,146
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/194:47 pm -
1 stop18h 38m
Mon 3/82:05 pm -
1 stop25h 37m
Deal found 9/21![Multiple Airlines logo]()
$1,106
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:05 pm -
2 stops30h 15m
Fri 11/2711:20 am -
1 stop17h 18m
Deal found 9/20![United Airlines logo]()
$1,150
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:00 am -
2 stops32h 30m
Tue 11/247:55 am -
2 stops31h 02m
Deal found 9/19![United Airlines logo]()
$1,155
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/185:00 am -
2 stops32h 30m
Fri 11/275:05 am -
2 stops23h 33m
Deal found 9/17![United Airlines logo]()
$1,156
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:10 pm -
1 stop24h 20m
Wed 11/411:20 am -
1 stop25h 21m
Deal found 9/17![United Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 3/912:30 pm -
1 stop25h 50m
Thu 3/2511:50 am -
1 stop17h 34m
Deal found 9/18![United Airlines logo]()
$1,229
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/176:16 pm -
2 stops36h 39m
Sun 2/78:30 am -
3 stops40h 34m
Deal found 9/21![Multiple Airlines logo]()
$1,671
This Cathay Pacific deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Mon 11/27:00 am -
3 stops41h 15m
Mon 11/97:45 pm -
3 stops44h 43m
Deal found 9/18![Multiple Airlines logo]()
$1,730
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:00 pm -
1 stop27h 20m
Wed 12/301:20 pm -
1 stop26h 16m
Deal found 9/20![United Airlines logo]()
$1,409
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2712:30 pm -
2 stops31h 30m
Wed 3/36:00 am -
2 stops23h 24m
Deal found 9/20![United Airlines logo]()
$1,416
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/212:00 pm -
2 stops34h 50m
Mon 11/96:10 am -
2 stops22h 39m
Deal found 9/18![United Airlines logo]()
$1,493
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:00 pm -
1 stop27h 20m
Thu 11/1211:50 am -
1 stop17h 29m
Deal found 9/19![United Airlines logo]()
$1,499
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:14 pm -
1 stop24h 41m
Mon 10/511:20 am -
1 stop19h 43m
Deal found 9/20![United Airlines logo]()
$1,529
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:10 pm -
2 stops55h 10m
Wed 11/411:45 pm -
2 stops37h 12m
Deal found 9/17![United Airlines logo]()
$1,631
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:10 pm -
2 stops25h 30m
Thu 11/128:40 am -
2 stops25h 32m
Deal found 9/19![United Airlines logo]()
$1,689
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Sat 12/191:25 pm -
3 stops53h 45m
Sat 1/25:20 pm -
3 stops60h 40m
Deal found 9/18![Multiple Airlines logo]()
$6,391
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/197:45 am -
2 stops38h 25m
Sat 1/27:20 am -
2 stops29h 55m
Deal found 9/18![United Airlines logo]()
$3,539
Last-minute flights from Idaho to AustraliaDiscover last-minute flight deals from Idaho to Australia. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Australia. Data last updated September 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/141:05 pm -
1 stop24h 25m
Sun 11/2211:20 am -
1 stop17h 18m
Deal found 9/17![United Airlines logo]()
$1,128
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Fri 10/167:46 pm -
2 stops42h 34m
Wed 11/2511:20 am -
2 stops28h 37m
Deal found 9/17![Multiple Airlines logo]()
$1,076
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/177:20 pm -
2 stops42h 30m
Wed 11/2510:40 am -
2 stops20h 39m
Deal found 9/17![Delta logo]()
$1,109
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:51 pm -
1 stop22h 39m
Tue 11/242:05 pm -
1 stop25h 46m
Deal found 9/19![Multiple Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/2411:50 am -
1 stop17h 48m
Deal found 9/17![United Airlines logo]()
$1,091
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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
Wed 11/2511:20 am -
2 stops28h 51m
Deal found 9/17![United Airlines logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:05 pm -
1 stop24h 25m
Thu 12/311:20 am -
1 stop18h 08m
Deal found 9/20![United Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 25m
Mon 11/2311:20 am -
2 stops27h 51m
Deal found 9/17![United Airlines logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am -
1 stop31h 30m
Mon 11/3011:20 am -
1 stop17h 18m
Deal found 9/20![United Airlines logo]()
$1,135
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Tue 11/102:05 pm -
1 stop25h 35m
Deal found 9/19![Qantas Airways logo]()
$1,050
This Qantas Airways deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:51 pm -
1 stop24h 09m
Tue 11/1011:15 am -
2 stops22h 07m
Deal found 9/18![Multiple Airlines logo]()
$1,059
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:57 pm -
2 stops25h 03m
Tue 11/1011:15 am -
2 stops24h 24m
Deal found 9/19![American Airlines logo]()
$1,092
One-way flights from Idaho to AustraliaSearch for one-way flight options from Idaho to Australia. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Idaho to Australia. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:45 pm -
2 stops23h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Qantas Airways logo]()
$532
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:51 pm -
1 stop22h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$536
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.
Tue 10/201:57 pm -
1 stop22h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$552
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.
Wed 10/212:51 pm -
1 stop22h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Qantas Airways logo]()
$567
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 1/196:30 am -
1 stop29h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:49 am -
2 stops25h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$582
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 10/186:00 am -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Air Canada logo]()
$592
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.
Tue 10/201:38 pm -
2 stops24h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Air Canada logo]()
$593
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:51 pm -
1 stop21h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$621
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.
Wed 10/214:41 pm -
2 stops44h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$634
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.
Wed 10/211:05 pm -
1 stop24h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$647
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.
Sat 10/175:00 am -
2 stops33h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$648
Find flight deals from Idaho to Australia
Keep the following information in mind while searching for Idaho to Australia flight deals. Data was last updated September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,016 (Bravofly) |
One-way from | $532 (oojo) |
Popular in | November |
Cheapest in | March |
Average price | $1,223 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho 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 22, 2026.
Use the filters below to find and compare flights from Idaho to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneSydney
GEG Spokane - SYD Sydney Kingsford Smith
GEGSYD
Spokane
Tue 10/20
1:57 pm-6:25 am
1 stop22h 28m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$552
SpokaneSydney
GEG Spokane - SYD Sydney Kingsford Smith
GEGSYD
Spokane
Tue 1/19
6:30 am-6:50 am
1 stop29h 20m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$570
BoiseSydney
BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith
BOISYD
Boise Air Term. Gowen Fld
Tue 11/3
10:49 am-6:25 am
2 stops25h 36m
Sydney Kingsford Smith
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$582
Quickest round-trip
SpokaneBrisbane
GEG Spokane - BNE Brisbane
GEGBNE
Spokane
Mon 10/19
2:51 pm-5:00 am
1 stop21h 09m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$621
SpokaneBrisbane
GEG Spokane - BNE Brisbane
GEGBNE
Spokane
Sun 10/18
1:05 pm-6:30 am
1 stop24h 25m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$647
SpokaneSydney
GEG Spokane - SYD Sydney Kingsford Smith
GEGSYD
Spokane
Sun 10/18
11:18 am-7:50 am
2 stops26h 32m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$648
SpokaneBrisbane
GEG Spokane - BNE Brisbane
GEGBNE
Spokane
Thu 10/22
1:05 pm-8:20 am
2 stops50h 15m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$670
SpokaneBrisbane
GEG Spokane - BNE Brisbane
GEGBNE
Spokane
Sat 10/17
1:05 pm-8:20 am
2 stops50h 15m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$670
BoiseSydney
BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith
BOISYD
Boise Air Term. Gowen Fld
Tue 11/3
2:03 pm-6:25 am
2 stops22h 22m
Sydney Kingsford Smith
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$681
BoiseSydney
BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith
BOISYD
Boise Air Term. Gowen Fld
Thu 10/1
1:52 pm-7:05 am
2 stops25h 13m
Sydney Kingsford Smith
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$816
Showing 1-10 of 40 resultsSorted by cheapest first
Best time to book a flight from Idaho to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Idaho with our price prediction graph.
GEG-SYD
GEG-BNE
BOI-SYD
GEG-PER
BOI-ADL
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 Idaho to Australia
USID-AU0
GEG-SYD
GEG-BNE
BOI-SYD
GEG-PER
What is the cheapest month to book a flight from Idaho to Australia?
Currently, March is the cheapest month in which you can book a flight from Idaho to Australia (average of $1,076). Flying from Idaho to Australia in November is currently the most expensive (average of $1,616). 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.
Related info for your journey
Find useful and relevant information for your journey from Idaho 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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Complete your trip
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Top regions
Alternative routes for Idaho 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 Idaho to Australia by cabin class
Find flights from Idaho to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Australia flights
Browse other Idaho and Australia flight options. Last updated on September 22, 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 Idaho after your stay in Australia
Idaho to Australia flights
Consider these flights traveling from Idaho to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 2 airlines flying from Idaho to Australia
Discover the top 2 airlines that operate flights from Idaho 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 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$966 | Average$1,340 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$967 | Average$1,126 | FlexibilityNo cancel fee | On-time71% |