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Idaho

$506+ Cheap flights from Australia to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 12/2511:40 amBNE - BOI
2 stops39h 21mUnited Airlines
Fri 1/302:20 pmBOI - BNE
1 stop24h 10mUnited Airlines
Deal found 12/16$846
This Delta deal was found by Cheapflights users on 12/17. 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 12/2710:40 amSYD - BOI
1 stop20h 47mDelta
Sun 1/41:00 pmBOI - SYD
2 stops25h 30mDelta
Deal found 12/17$1,650
This Jetabroad deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:30 amBNE - BOI
3 stops31h 32mMultiple Airlines
Fri 1/307:02 pmBOI - BNE
3 stops32h 23mMultiple Airlines
Deal found 12/16$2,080
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:30 amBNE - BOI
3 stops31h 32mAir Tahiti Nui
Fri 1/307:02 pmBOI - BNE
3 stops43h 28mAir Tahiti Nui
Deal found 12/17$2,090
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/259:40 amBNE - BOI
1 stop29h 24mAmerican Airlines
Fri 1/307:20 amBOI - BNE
1 stop30h 10mAmerican Airlines
Deal found 12/16$2,318
This Air Tahiti Nui deal was found by Cheapflights users on 12/17. 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 Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:15 pmSYD - BOI
3 stops45h 47mAir Tahiti Nui
Sun 1/47:00 amBOI - SYD
3 stops40h 40mAir Tahiti Nui
Deal found 12/17$2,976
This Cathay Pacific deal was found by Cheapflights users on 12/17. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:20 pmSYD - BOI
2 stops41h 42mMultiple Airlines
Sun 1/48:07 amBOI - SYD
3 stops40h 08mMultiple Airlines
Deal found 12/17$3,886

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$837
(American Airlines)

One-way from

$506
(Delta)

Popular in

July

Cheapest in

October

Average price

$1,208
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
One-way flight from Australia to Idaho
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($56 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 December 2025
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 December 18, 2025.
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

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Thu 2/19

9:40 am-10:36 pm

1 stop29h 56m

Boise Air Term. Gowen Fld

Mon 2/23

1:36 pm-6:30 am

1 stop23h 54m

$837

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Thu 2/19

11:40 am-9:11 pm

1 stop26h 31m

Boise Air Term. Gowen Fld

Mon 2/23

10:53 am-7:30 am

1 stop27h 37m

$845

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Fri 1/30

1:00 pm-11:39 am

2 stops41h 39m

Spokane

Fri 2/6

12:24 pm-10:00 am

1 stop26h 36m

$859

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 2/25

11:20 am-9:32 pm

2 stops28h 12m

Boise Air Term. Gowen Fld

Sun 3/1

5:24 pm-9:35 am

2 stops46h 11m

$1,426

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Thu 2/26

1:00 pm-9:17 pm

2 stops27h 17m

Spokane

Mon 3/2

12:38 pm-10:00 am

1 stop26h 22m

$1,562

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 2/25

2:05 pm-10:36 pm

1 stop26h 31m

Boise Air Term. Gowen Fld

Sun 3/1

7:00 am-6:55 am

1 stop29h 55m

$1,604

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 2/25

11:50 am-9:32 pm

2 stops27h 42m

Boise Air Term. Gowen Fld

Sun 3/1

6:55 pm-9:15 am

1 stop20h 20m

$1,609

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 12/27

10:40 am-1:27 pm

1 stop20h 47m

Boise Air Term. Gowen Fld

Sun 1/4

1:00 pm-8:30 am

2 stops25h 30m

$1,650

DarwinSpokane

DRW - GEG

DRWGEG

Darwin

Mon 1/26

1:40 am-6:49 pm

2 stops34h 39m

Spokane

Sat 1/31

6:50 am-12:00 pm

2 stops35h 40m

$1,741

NewcastleBoise

NTL - BOI

NTLBOI

Newcastle Williamtown

Thu 2/19

6:10 am-11:00 pm

2 stops34h 50m

Boise Air Term. Gowen Fld

Mon 2/23

8:16 am-9:05 pm

2 stops42h 49m

$2,313

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 16 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 December 18, 2025.
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
9,091 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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, United Airlines, and Air Canada fly from Australia to Idaho in about 28h 12m. The time it takes to get you to your destination can typically vary by up to 13h 27m. 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

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Alternative routes for Australia to Idaho

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,019Average$1,308FlexibilityNo cancel feeOn-time69%

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