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Find cheap flights from Idaho to Australia from $823

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho to Australia departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 7/6
Sat 7/13

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In the last 7 days travelers have searched 44,060,346 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$823
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Boise to Sydney

FAQs for booking flights from Idaho to Australia

  • How does KAYAK find such low prices on flights from Idaho to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Australia with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Australia from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Idaho to Australia

Recent round-trip flight deals

11/21Thu
2 stopsAir New Zealand
30h 40mBOI-SYD
12/6Fri
2 stopsAir New Zealand
25h 08mSYD-BOI
$1,335
9/25Wed
2 stops
48h 35mGEG-PER
10/2Wed
2 stops
52h 53mPER-GEG
$1,378
9/23Mon
2 stops
42h 19mBOI-SYD
10/31Thu
2 stops
44h 46mSYD-BOI
$1,425
9/29Sun
1 stopUnited Airlines
19h 50mBOI-SYD
10/13Sun
1 stopUnited Airlines
26h 48mSYD-BOI
$1,625
9/13Fri
2 stopsCathay Pacific
47h 35mGEG-BNE
10/3Thu
2 stopsCathay Pacific
38h 37mBNE-GEG
$1,694
8/12Mon
2 stopsQatar Airways
38h 00mGEG-PER
8/20Tue
2 stopsQatar Airways
55h 30mPER-GEG
$1,739
10/25Fri
2 stopsQantas Airways
28h 53mGEG-BNE
11/13Wed
1 stopQantas Airways
18h 34mBNE-GEG
$1,792
8/23Fri
2 stopsCathay Pacific
47h 35mGEG-BNE
9/12Thu
2 stopsCathay Pacific
39h 11mBNE-GEG
$1,794
10/24Thu
1 stopQantas Airways
19h 50mGEG-SYD
11/9Sat
1 stopQantas Airways
24h 04mSYD-GEG
$1,799
7/2Tue
1 stopUnited Airlines
21h 20mGEG-SYD
7/16Tue
1 stopUnited Airlines
22h 32mSYD-GEG
$1,834

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Recent one-way flight deals

8/11Sun
2 stops
33h 39mBOI-SYD
$823
8/11Sun
1 stopUnited Airlines
24h 40mBOI-SYD
$1,165
8/11Sun
3 stopsAir Tahiti Nui
30h 56mBOI-SYD
$1,277

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Last minute flights from Idaho to Australia

Last minute flight, train and bus deals

6/9Sun
multi-stopAir New Zealand
20h 00mBOI-SYD
6/11Tue
multi-stopAir New Zealand
28h 17mSYD-BOI
$1,944
6/9Sun
multi-stopAir New Zealand
32h 35mBOI-SYD
6/11Tue
multi-stopAir New Zealand
25h 22mSYD-BOI
$2,034
6/9Sun
multi-stop
31h 10mGEG-SYD
6/11Tue
multi-stop
27h 41mSYD-GEG
$2,222
6/9Sun
multi-stop
26h 00mGEG-SYD
6/11Tue
multi-stop
29h 36mSYD-GEG
$2,513
6/9Sun
multi-stop
25h 55mBOI-SYD
6/11Tue
multi-stop
20h 37mSYD-BOI
$2,618
6/9Sun
multi-stop
25h 37mGEG-SYD
6/11Tue
multi-stop
22h 25mSYD-GEG
$3,232
6/9Sun
multi-stopQantas Airways
32h 25mGEG-SYD
6/11Tue
multi-stopQantas Airways
21h 56mSYD-GEG
$3,371
6/9Sun
multi-stop
25h 37mGEG-SYD
6/11Tue
multi-stop
28h 19mSYD-GEG
$3,642
6/9Sun
multi-stop
30h 55mBOI-SYD
6/11Tue
multi-stop
58h 59mSYD-BOI
$5,012

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Flights to Australia

Return flight deals:

Australia - Idaho

Cabin classes: