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$1,245+ Cheap flights from Idaho to Adelaide (ADL)

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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ADL
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
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Cheap flight deals from Idaho to Adelaide

Keep the following information in mind while searching for Idaho to Adelaide flight deals. Data was last updated August 28, 2025.

Round-trip from

$1,245
(Booking.com)
From Idaho to Adelaide
Search Deals

Find flight deals from Idaho to Adelaide

Best flights from Idaho to Adelaide
Discover carefully curated flight deals from Idaho to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 28, 2025.

This Booking.com deal was found by Cheapflights users on 8/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/178:05 amBOI - ADL
2 stops33h 20mAir New Zealand
Tue 3/177:00 pmADL - BOI
3 stops43h 52mAir New Zealand
Deal found 8/28$1,245
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Mon 2/22:20 pmBOI - ADL
1 stop25h 40mUnited Airlines
Sat 2/212:55 pmADL - BOI
1 stop22h 16mUnited Airlines
Deal found 8/26$1,387
This Ovago deal was found by Cheapflights users on 8/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/210:15 amBOI - ADL
2 stops31h 10mAir New Zealand
Sat 2/215:10 pmADL - BOI
2 stops44h 01mAir New Zealand
Deal found 8/28$1,369

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Adelaide 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 August 28, 2025.
Use the filters below to find and compare flights from Idaho to Adelaide that are best for you.

Fly from

Idaho

Fly to

Adelaide

Route

Depart

Return

Price

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Tue 2/17

8:05 am-10:55 am

2 stops33h 20m

Adelaide

Tue 3/17

7:00 pm-10:22 pm

3 stops43h 52m

$1,245

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

10:15 am-10:55 am

2 stops31h 10m

Adelaide

Sat 2/21

5:10 pm-7:41 pm

2 stops44h 01m

$1,369

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

2:20 pm-9:30 am

1 stop25h 40m

Adelaide

Sat 2/21

2:55 pm-7:41 pm

1 stop22h 16m

$1,387

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Best time to book a flight from Idaho to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Idaho 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 Idaho to Adelaide
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 Idaho to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Idaho?

    Most people fly into Adelaide (ADL) if they book a flight to Adelaide from Idaho. Adelaide is conveniently located just 4.1 mi from Adelaide’s city center.

  • How long is the flight from Idaho to Adelaide?

    A quick flight from Idaho to Adelaide can take about 33h 20m. Air New Zealand provides one of the quickest options available for as low as $1,245. Idaho and Adelaide are separated by a distance of 8522 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Adelaide 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 Idaho to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Idaho to Adelaide (average of $1,214). Flying from Idaho to Adelaide in December is currently the most expensive (average of $2,057). 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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