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Find cheap flights from Idaho to Australia from $1,321

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho to Australia departing on 7/30. 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
Fri 7/5
Fri 7/12

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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

$1,321
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

7/30Tue
2 stopsAir New Zealand
30h 39mBOI-SYD
8/20Tue
2 stopsAir New Zealand
28h 30mSYD-BOI
$1,321
7/30Tue
1 stopAir New Zealand
27h 04mBOI-SYD
8/20Tue
2 stopsAir New Zealand
26h 35mSYD-BOI
$1,462
11/4Mon
1 stopAir New Zealand
22h 25mGEG-SYD
11/17Sun
2 stopsAir New Zealand
20h 09mSYD-GEG
$1,462
10/18Fri
2 stops
28h 58mBOI-SYD
11/2Sat
2 stops
25h 23mSYD-BOI
$1,478
8/12Mon
2 stopsQatar Airways
43h 11mGEG-PER
8/20Tue
2 stopsQatar Airways
55h 30mPER-GEG
$1,589
9/29Sun
1 stopUnited Airlines
19h 50mBOI-SYD
10/13Sun
1 stopUnited Airlines
26h 48mSYD-BOI
$1,625
11/4Mon
2 stopsCathay Pacific
46h 30mGEG-SYD
11/17Sun
2 stopsCathay Pacific
43h 54mSYD-GEG
$1,638
10/18Fri
1 stop
20h 10mBOI-SYD
11/2Sat
2 stops
35h 16mSYD-BOI
$1,683
8/12Mon
2 stopsUnited Airlines
44h 10mGEG-PER
8/19Mon
2 stopsUnited Airlines
36h 50mPER-GEG
$3,012
7/29Mon
2 stopsQatar Airways
72h 19mBOI-SYD
8/20Tue
2 stopsQatar Airways
40h 46mSYD-BOI
$5,278

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Last minute flights from Idaho to Australia

Last minute flight, train and bus deals

6/5Wed
multi-stopChina Airlines
35h 09mBOI-SYD
6/12Wed
multi-stopChina Airlines
64h 47mSYD-BOI
$3,980
6/5Wed
multi-stopUnited Airlines
24h 40mBOI-SYD
6/12Wed
multi-stopUnited Airlines
44h 33mSYD-BOI
$4,565
6/5Wed
multi-stopDelta
26h 30mBOI-SYD
6/12Wed
multi-stopDelta
17h 45mSYD-BOI
$4,991
6/5Wed
multi-stop
35h 09mBOI-SYD
6/12Wed
multi-stop
45h 05mSYD-BOI
$5,969

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Flights to Australia

Return flight deals:

Australia - Idaho

Cabin classes: