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Find cheap flights from Idaho to Australia from $959

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 7/5. 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 6/22
Sat 6/29

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In the last 7 days travelers have searched 43,800,826 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$959
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 27% 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

11/2Sat
2 stops
44h 45mBOI-SYD
11/10Sun
2 stops
21h 31mSYD-BOI
$1,227
8/22Thu
2 stopsAir New Zealand
34h 30mBOI-SYD
9/8Sun
2 stopsAir New Zealand
28h 21mSYD-BOI
$1,268
11/2Sat
2 stopsUnited Airlines
44h 38mBOI-SYD
11/10Sun
1 stopUnited Airlines
17h 27mSYD-BOI
$1,289
11/2Sat
1 stopUnited Airlines
20h 32mBOI-SYD
11/10Sun
1 stopUnited Airlines
17h 27mSYD-BOI
$1,335
8/22Thu
2 stopsUnited Airlines
26h 53mBOI-SYD
9/8Sun
1 stopUnited Airlines
20h 00mSYD-BOI
$1,339
8/12Mon
2 stopsQatar Airways
46h 35mGEG-PER
8/20Tue
2 stopsQatar Airways
55h 30mPER-GEG
$1,518
8/12Mon
3 stopsAmerican Airlines
39h 55mGEG-PER
8/20Tue
3 stopsAmerican Airlines
38h 06mPER-GEG
$1,821
8/22Thu
3 stopsSingapore Airlines
40h 50mBOI-SYD
9/8Sun
3 stopsSingapore Airlines
69h 35mSYD-BOI
$2,424
10/8Tue
2 stopsAmerican Airlines
30h 34mBOI-SYD
10/23Wed
2 stopsAmerican Airlines
28h 06mSYD-BOI
$3,289
10/8Tue
3 stopsSingapore Airlines
40h 45mBOI-SYD
10/23Wed
2 stopsSingapore Airlines
45h 35mSYD-BOI
$4,194

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Recent one-way flight deals

7/5Fri
2 stops
32h 26mBOI-SYD
$959
6/24Mon
3 stops
54h 32mBOI-SYD
$1,025
6/24Mon
2 stops
24h 51mBOI-SYD
$1,059
6/24Mon
1 stopUnited Airlines
19h 53mBOI-SYD
$1,287
7/5Fri
1 stop
21h 16mBOI-SYD
$1,336
7/5Fri
3 stops
27h 10mBOI-SYD
$1,352

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Last minute flights from Idaho to Australia

Last minute flight, train and bus deals

5/26Sun
multi-stop
30h 11mGEG-SYD
5/28Tue
multi-stop
26h 16mSYD-GEG
$10,374
5/26Sun
multi-stopQantas Airways
31h 20mGEG-SYD
5/28Tue
multi-stopQantas Airways
21h 56mSYD-GEG
$14,775
5/26Sun
multi-stopQantas Airways
33h 10mGEG-SYD
5/28Tue
multi-stopQantas Airways
21h 56mSYD-GEG
$16,103
5/26Sun
multi-stop
27h 15mGEG-SYD
5/28Tue
multi-stop
22h 24mSYD-GEG
$17,172
5/26Sun
multi-stop
27h 15mGEG-SYD
5/28Tue
multi-stop
31h 14mSYD-GEG
$17,191

Search by stops

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Search by price

Flights to Australia

Return flight deals:

Australia - Idaho

Cabin classes: