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Idaho

$507+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap 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 16, 2025.

Round-trip from

$844
(United Airlines)

One-way from

$507
(American Airlines)

Popular in

July

Cheapest in

October
From Australia to Idaho
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One-way flight from Australia to Idaho
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Highest demand for flights based on searches. 2% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Find 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 10/3012:00 pmMEL - GEG
2 stops42h 45mUnited Airlines
Thu 11/66:00 amGEG - MEL
1 stop33h 00mUnited Airlines
Deal found 9/14$844
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:35 amBNE - BOI
2 stops27h 21mMultiple Airlines
Wed 10/158:05 amBOI - BNE
2 stops34h 30mMultiple Airlines
Deal found 9/15$922
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/3011:05 amSYD - BOI
2 stops28h 40mUnited Airlines
Mon 11/32:31 pmBOI - SYD
2 stops46h 29mUnited Airlines
Deal found 9/14$937
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/309:40 amSYD - BOI
2 stops26h 11mDelta
Mon 11/311:41 amBOI - SYD
2 stops26h 49mDelta
Deal found 9/15$959
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/710:30 amBNE - BOI
2 stops43h 03mUnited Airlines
Wed 10/1512:35 pmBOI - BNE
3 stops49h 55mUnited Airlines
Deal found 9/15$1,028
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/3012:40 amDRW - GEG
2 stops39h 19mUnited Airlines
Tue 11/412:45 pmGEG - DRW
2 stops31h 20mUnited Airlines
Deal found 9/14$1,395
This Qantas Airways deal was found by Cheapflights users on 9/14. 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.
Thu 10/305:00 pmNTL - BOI
2 stops47h 02mQantas Airways
Mon 11/38:08 amBOI - NTL
2 stops42h 57mQantas Airways
Deal found 9/14$2,392
This Emirates deal was found by Cheapflights users on 9/15. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/61:55 amBNE - BOI
2 stops57h 20mEmirates
Wed 10/1512:35 pmBOI - BNE
2 stops49h 50mEmirates
Deal found 9/15$3,017

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 September 16, 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

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Thu 10/30

12:00 pm-12:45 pm

2 stops42h 45m

Spokane

Thu 11/6

6:00 am-10:00 am

1 stop33h 00m

$844

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 1/28

10:40 am-4:53 pm

2 stops24h 13m

Boise Air Term. Gowen Fld

Sun 2/22

7:30 am-8:30 am

2 stops31h 00m

$851

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 3/11

4:05 pm-8:34 pm

1 stop22h 29m

Spokane

Sun 3/15

3:45 pm-5:00 am

2 stops43h 15m

$901

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Tue 10/7

11:35 am-10:56 pm

2 stops27h 21m

Boise Air Term. Gowen Fld

Wed 10/15

8:05 am-10:35 am

2 stops34h 30m

$922

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Sun 1/18

9:40 am-4:56 pm

2 stops24h 16m

Boise Air Term. Gowen Fld

Thu 5/14

1:37 pm-5:00 am

2 stops23h 23m

$926

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 10/30

11:05 am-10:45 pm

2 stops28h 40m

Boise Air Term. Gowen Fld

Mon 11/3

2:31 pm-7:00 am

2 stops46h 29m

$937

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 10/30

9:40 am-8:16 pm

2 stops27h 36m

Boise Air Term. Gowen Fld

Mon 11/3

4:00 pm-8:30 am

1 stop22h 30m

$959

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Thu 2/19

9:40 am-9:09 pm

1 stop28h 29m

Boise Air Term. Gowen Fld

Mon 2/23

2:17 pm-6:30 am

2 stops47h 13m

$969

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 3/11

12:00 pm-9:24 pm

1 stop27h 24m

Spokane

Sun 3/15

2:05 pm-9:00 am

1 stop24h 55m

$977

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Thu 2/19

11:40 am-9:16 pm

2 stops26h 36m

Boise Air Term. Gowen Fld

Mon 2/23

2:43 pm-7:30 am

2 stops47h 47m

$978

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 15 results
1
2

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 September 16, 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
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 United Airlines, Delta, and American Airlines fly from Australia to Idaho in about 22h 29m. The time it takes to get you to your destination can typically vary by up to 20h 16m. The distance from Australia to Idaho is about 8388 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.

  • What is the cheapest month to book a flight from Australia to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Australia to Idaho (average of $314). Flying from Australia to Idaho in June is currently the most expensive (average of $398). 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.

See more FAQs

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Alternative routes for Australia to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,019Average$1,308FlexibilityNo cancel feeOn-time69%

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