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Idaho

$771+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Australia to Idaho

Cheapest flights from Australia to Idaho
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 February 4, 2026.

This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:40 pm
BNE
-
BOI
2 stops34h 28m
American Airlines
Mon 2/97:20 am
BOI
-
BNE
2 stops28h 40m
American Airlines
Deal found 2/2$771
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:40 am
BNE
-
BOI
1 stop21h 30m
United Airlines
Mon 2/92:20 pm
BOI
-
BNE
1 stop24h 10m
United Airlines
Deal found 2/2$887
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/44:05 pm
MEL
-
GEG
1 stop21h 44m
American Airlines
Sun 2/86:00 am
GEG
-
MEL
2 stops56h 30m
American Airlines
Deal found 2/2$944
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” 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 5/119:10 am
SYD
-
BOI
2 stops24h 43m
American Airlines
Sun 6/72:07 pm
BOI
-
SYD
2 stops24h 58m
American Airlines
Deal found 2/3$1,014
This Qantas Airways deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” 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 5/115:50 pm
SYD
-
BOI
1 stop21h 11m
Multiple Airlines
Sun 6/76:49 pm
BOI
-
SYD
1 stop19h 36m
Multiple Airlines
Deal found 2/3$1,015
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” 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 5/1110:20 am
SYD
-
BOI
2 stops26h 57m
United Airlines
Sun 6/77:00 am
BOI
-
SYD
1 stop32h 00m
United Airlines
Deal found 2/3$1,016
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1211:20 am
SYD
-
BOI
2 stops23h 42m
American Airlines
Mon 3/167:00 am
BOI
-
SYD
2 stops33h 00m
American Airlines
Deal found 2/3$1,051
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/1311:20 am
SYD
-
BOI
2 stops48h 30m
American Airlines
Tue 3/1712:31 pm
BOI
-
SYD
2 stops49h 54m
American Airlines
Deal found 2/2$1,057
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:10 pm
SYD
-
BOI
1 stop26h 03m
United Airlines
Mon 3/1612:59 pm
BOI
-
SYD
1 stop27h 16m
United Airlines
Deal found 2/3$1,069
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/132:00 pm
SYD
-
BOI
1 stop22h 12m
United Airlines
Tue 3/1712:59 pm
BOI
-
SYD
1 stop27h 16m
United Airlines
Deal found 2/2$1,089
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 5/158:35 pm
BNE
-
BOI
2 stops32h 28m
American Airlines
Sun 6/1412:19 pm
BOI
-
BNE
2 stops24h 41m
American Airlines
Deal found 2/2$1,125
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 5/1510:30 am
BNE
-
BOI
1 stop24h 41m
United Airlines
Sun 6/146:59 pm
BOI
-
BNE
1 stop19h 31m
United Airlines
Deal found 2/2$1,136

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,014
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$1,312
Provider with most accurate pricing for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flights.
Search Deals
From Australia to Idaho
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Australia to Idaho that are best for you.

Fly from

Australia

Fly to

Idaho

Route

Depart

Return

Price

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 5/11

9:10 am-5:53 pm

2 stops24h 43m

Boise Air Term. Gowen Fld

Sun 6/7

2:07 pm-7:05 am

2 stops24h 58m

$1,014

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 5/11

5:50 pm-11:01 pm

1 stop21h 11m

Boise Air Term. Gowen Fld

Sun 6/7

6:49 pm-6:25 am

1 stop19h 36m

$1,015

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 5/11

10:20 am-9:17 pm

2 stops26h 57m

Boise Air Term. Gowen Fld

Sun 6/7

7:00 am-7:00 am

1 stop32h 00m

$1,016

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 3/12

11:20 am-6:02 pm

2 stops23h 42m

Boise Air Term. Gowen Fld

Mon 3/16

7:00 am-9:00 am

2 stops33h 00m

$1,051

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Fri 3/13

11:20 am-6:50 pm

2 stops48h 30m

Boise Air Term. Gowen Fld

Tue 3/17

12:31 pm-7:25 am

2 stops49h 54m

$1,057

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 3/12

12:10 pm-9:13 pm

1 stop26h 03m

Boise Air Term. Gowen Fld

Mon 3/16

2:40 pm-8:05 am

2 stops24h 25m

$1,069

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Fri 3/13

2:00 pm-7:12 pm

1 stop22h 12m

Boise Air Term. Gowen Fld

Tue 3/17

12:59 pm-9:15 am

1 stop27h 16m

$1,089

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Fri 5/15

8:35 pm-1:03 pm

2 stops32h 28m

Boise Air Term. Gowen Fld

Sun 6/14

12:19 pm-5:00 am

2 stops24h 41m

$1,125

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Fri 5/15

10:30 am-9:17 pm

2 stops26h 47m

Boise Air Term. Gowen Fld

Sun 6/14

2:15 pm-6:30 am

1 stop24h 15m

$1,140

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Wed 5/13

9:35 am-5:41 pm

2 stops24h 06m

Boise Air Term. Gowen Fld

Fri 11/20

8:18 am-7:00 am

2 stops29h 42m

$1,186

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 17 results
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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.
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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated February 4, 2026.
Read reviews from past customers who have flown United Airlines from Australia to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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.

  • How long is the flight from Australia to Idaho?

    Airlines like American Airlines and United Airlines fly from Australia to Idaho in about 24h 43m. The time it takes to get you to your destination can typically vary by up to 2h 14m. The distance from Australia to Idaho is about 7894 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Australia to Idaho that include hotel bookings?

    Yes. In addition to deals on Australia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Australia to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Idaho.

  • Can I find deals for business class flights from Australia to Idaho?

    Yes. Cheapflights offers flight deals from Australia to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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.

Top airline flying from Australia to Idaho

Discover the top airline that operate flights from Australia to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,019Average$1,360FlexibilityNo cancel feeOn-time69%

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