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Cheap flights from Idaho to Adelaide from $1,731

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ADL
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

$1,731
30/10-6/11
  • 30/10-6/11
  • 4 total stops
  • 62h 54m total
  • Idaho to Adelaide
Search Deals

Find flight deals from Idaho to Adelaide

Cheapest flights from Idaho to Adelaide
Explore the most affordable flight options available from Idaho to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Thu 16/1020:26BOI - ADL
2 stops23h 39mMultiple Airlines
Thu 23/1013:35ADL - BOI
2 stops25h 51mMultiple Airlines
Deal found 18/9$2,131
Thu 16/1006:00BOI - ADL
3 stops33h 45mHawaiian Airlines
Thu 23/1012:45ADL - BOI
3 stops36h 59mHawaiian Airlines
Deal found 18/9$3,005

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 18 September 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

Thu 30/10

08:08-12:15

2 stops35h 37m

Adelaide

Thu 6/11

13:15-23:02

2 stops27h 17m

$1,731

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

19:05-09:30

1 stop20h 55m

Adelaide

Sat 21/2

14:55-16:31

1 stop19h 06m

$2,081

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

07:25-10:55

2 stops34h 00m

Adelaide

Sat 21/2

17:10-21:11

2 stops45h 31m

$2,085

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Wed 11/2

17:16-09:30

2 stops46h 44m

Adelaide

Sun 15/2

08:30-16:31

2 stops25h 31m

$2,569

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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 return 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?

    If you book a flight to Adelaide from Idaho, you will be flying to Adelaide, which is the city’s only airport. Adelaide (ADL) is located 6.6 km from the centre of Adelaide.

  • How long is the flight from Idaho to Adelaide?

    Departing from Idaho to Adelaide will take you 20h 55m. The distance from Idaho to Adelaide is about 13715 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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, June is the cheapest month in which you can book a flight from Idaho to Adelaide (average of $168). Flying from Idaho to Adelaide in October is currently the most expensive (average of $241). 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

Travelling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg
Stirling

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Can Cheapflights find flights from Idaho to Adelaide with no change fees?

Certainly. Search results for flights to Adelaide from Idaho shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Of course! You can now track prices for flights from Idaho to Adelaide and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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