$606+ Cheap flights from Australia to Idaho
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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Australia to Idaho with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 Australia to Idaho
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Cheapest flights from Australia to IdahoExplore the most affordable flight options available from Australia to Idaho. 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 Australia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
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.
Tue 11/1010:40 am -
2 stops25h 37m
Tue 11/171:11 pm -
2 stops25h 19m
Deal found 9/26![Delta logo]()
$962
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:10 am -
1 stop30h 42m
Mon 11/168:49 am -
2 stops29h 11m
Deal found 9/25![Delta logo]()
$962
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:05 pm -
1 stop25h 38m
Tue 11/171:35 pm -
2 stops25h 25m
Deal found 9/26![American Airlines logo]()
$972
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:20 am -
1 stop18h 38m
Sat 10/315:44 pm -
2 stops46h 21m
Deal found 9/26![United Airlines logo]()
$1,010
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.
Sat 10/2410:10 am -
2 stops23h 54m
Sat 10/312:02 pm -
2 stops25h 58m
Deal found 9/26![American Airlines logo]()
$1,066
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:10 am -
2 stops44h 13m
Tue 11/102:41 pm -
1 stop22h 14m
Deal found 9/25![American Airlines logo]()
$1,165
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.
Fri 11/611:20 am -
2 stops40h 36m
Tue 11/105:00 am -
2 stops34h 35m
Deal found 9/28![Air Canada logo]()
$1,355
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:40 pm -
3 stops33h 36m
Tue 11/171:53 pm -
2 stops35h 52m
Deal found 9/26![Multiple Airlines logo]()
$1,629
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:55 pm -
3 stops36h 35m
Mon 11/1610:13 am -
2 stops42h 52m
Deal found 9/25![Multiple Airlines logo]()
$1,650
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 am -
1 stop22h 52m
Tue 11/1012:00 pm -
1 stop27h 20m
Deal found 9/28![United Airlines logo]()
$2,016
Best flights from Australia to IdahoDiscover carefully curated flight deals from Australia to Idaho 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 Australia to Idaho 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 9/26. 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.
Tue 11/1010:40 am -
2 stops25h 37m
Tue 11/171:11 pm -
2 stops25h 19m
Deal found 9/26![Delta logo]()
$962
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:05 pm -
1 stop25h 38m
Tue 11/171:35 pm -
1 stop23h 20m
Deal found 9/26![American Airlines logo]()
$973
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:20 am -
1 stop18h 38m
Sat 10/315:44 pm -
2 stops46h 21m
Deal found 9/26![United Airlines logo]()
$1,010
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:40 pm -
3 stops33h 36m
Tue 11/171:53 pm -
2 stops35h 52m
Deal found 9/26![Multiple Airlines logo]()
$1,629
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:10 am -
1 stop22h 48m
Mon 11/164:45 pm -
1 stop21h 15m
Deal found 9/25![Delta logo]()
$962
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:10 am -
2 stops44h 13m
Tue 11/102:41 pm -
1 stop22h 14m
Deal found 9/25![American Airlines logo]()
$1,165
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:55 pm -
3 stops36h 35m
Mon 11/1610:13 am -
2 stops42h 52m
Deal found 9/25![Multiple Airlines logo]()
$1,650
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 am -
1 stop22h 52m
Tue 11/1012:00 pm -
1 stop27h 20m
Deal found 9/28![United Airlines logo]()
$2,016
Last-minute flights from Australia to IdahoDiscover last-minute flight deals from Australia to Idaho. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Australia to Idaho. Data last updated September 29, 2026 and is based on user searches.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:20 am -
2 stops23h 23m
Sat 10/315:44 pm -
2 stops46h 21m
Deal found 9/26![United Airlines logo]()
$1,010
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.
Sat 10/2410:10 am -
2 stops23h 54m
Sat 10/312:02 pm -
2 stops25h 58m
Deal found 9/26![American Airlines logo]()
$1,066
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:50 pm -
3 stops42h 07m
Sat 10/312:41 pm -
2 stops47h 34m
Deal found 9/26![Multiple Airlines logo]()
$2,195
One-way flights from Australia to IdahoSearch for one-way flight options from Australia to Idaho. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Australia to Idaho. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1911:20 am -
2 stops28h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air Canada logo]()
$606
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2111:20 am -
2 stops19h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$609
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2011:20 am -
2 stops41h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air Canada logo]()
$645
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 1/184:00 pm -
2 stops41h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Air Canada logo]()
$649
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.
Mon 1/2511:20 am -
2 stops41h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Air Canada logo]()
$652
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.
Wed 1/2711:20 am -
2 stops40h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$657
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2811:20 am -
2 stops21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$675
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2211:20 am -
2 stops41h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air Canada logo]()
$691
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.
Sat 1/3011:20 am -
2 stops41h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Air Canada logo]()
$698
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.
Sun 1/2411:20 am -
2 stops23h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Air Canada logo]()
$717
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.
Wed 1/2711:20 am -
3 stops45h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$719
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.
Wed 10/1410:30 am -
2 stops21h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$1,406
Find flight deals from Australia to Idaho
Keep the following information in mind while searching for Australia to Idaho flight deals. Data was last updated September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $962 (Delta) |
One-way from | $606 (Travelocity) |
Cheapflights Fare Finder
Customize your flight search to find flights from Australia to Idaho 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 Australia to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Tue 1/19
11:20 am-9:35 pm
2 stops28h 15m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$606
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Thu 1/28
11:20 am-3:03 pm
3 stops45h 43m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$719
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Wed 1/20
10:40 am-11:08 pm
1 stop30h 28m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$720
Quickest round-trip
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Mon 1/18
11:50 am-3:03 pm
1 stop21h 13m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$720
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Thu 1/21
10:40 am-11:08 pm
1 stop30h 28m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$720
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Wed 1/20
11:50 am-3:03 pm
1 stop21h 13m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$720
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Tue 1/19
1:20 pm-11:07 am
1 stop39h 47m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$720
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Sat 1/30
11:50 am-3:03 pm
1 stop21h 13m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$778
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Sun 1/31
11:20 am-3:03 pm
3 stops45h 43m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$778
SydneyBoise
SYD Sydney Kingsford Smith - BOI Boise Air Term. Gowen Fld
SYDBOI
Sydney Kingsford Smith
Sun 1/24
1:20 pm-11:07 am
1 stop39h 47m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$779
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Australia to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Australia with our price prediction graph.
SYD-BOI
SYD-IDA
MEL-BOI
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 Australia to Idaho
AU0-USID
SYD-BOI
SYD-IDA
MEL-BOI
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Australia to Idaho. 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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