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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
Sun 7/7
Sun 7/14

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In the last 7 days travelers have searched 44,281,614 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

11/11Mon
2 stops
30h 30mGEG-BNE
11/25Mon
2 stops
22h 28mBNE-GEG
$1,250
11/21Thu
2 stopsAir New Zealand
30h 40mBOI-SYD
12/6Fri
2 stopsAir New Zealand
25h 08mSYD-BOI
$1,335
8/12Mon
2 stopsQatar Airways
46h 35mGEG-PER
8/20Tue
2 stopsQatar Airways
55h 30mPER-GEG
$1,589
11/11Mon
1 stopAmerican Airlines
30h 44mGEG-BNE
11/25Mon
1 stopAmerican Airlines
28h 55mBNE-GEG
$1,611
11/11Mon
2 stopsAmerican Airlines
27h 29mGEG-BNE
11/25Mon
1 stopAmerican Airlines
28h 55mBNE-GEG
$1,616
9/29Sun
1 stopUnited Airlines
19h 50mBOI-SYD
10/13Sun
1 stopUnited Airlines
26h 48mSYD-BOI
$1,625
9/9Mon
1 stopDelta
26h 45mBOI-SYD
9/25Wed
1 stopDelta
17h 45mSYD-BOI
$1,641
10/24Thu
1 stopDelta
23h 50mGEG-SYD
11/9Sat
1 stopDelta
21h 02mSYD-GEG
$1,661
8/12Mon
2 stopsQatar Airways
38h 00mGEG-PER
8/20Tue
2 stopsQatar Airways
55h 30mPER-GEG
$1,739
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
24h 40mBOI-SYD
6/11Tue
multi-stopAir New Zealand
28h 17mSYD-BOI
$2,069
6/9Sun
multi-stopAir New Zealand
21h 45mBOI-SYD
6/11Tue
multi-stopAir New Zealand
25h 22mSYD-BOI
$2,090
6/9Sun
multi-stop
25h 55mBOI-SYD
6/11Tue
multi-stop
20h 37mSYD-BOI
$2,617
6/9Sun
multi-stop
30h 55mBOI-SYD
6/11Tue
multi-stop
58h 59mSYD-BOI
$5,012
6/9Sun
multi-stopSingapore Airlines
30h 55mBOI-SYD
6/11Tue
multi-stopSingapore Airlines
62h 34mSYD-BOI
$5,024

Search by stops

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Flights to Australia

Return flight deals:

Australia - Idaho

Cabin classes: