$1,161 Find Cheap Flights from Idaho to Australia

1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Australia

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

May

High season

December

Cheapest flight

$1,161
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Spokane 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 from Idaho to Australia 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 from Idaho to Australia with an airline and back 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 from Idaho to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Australia?

    Based on KAYAK data, the cheapest day to fly to Australia is Sunday where round-trip tickets can be as cheap as $1,164. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $1,529 on average.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally in the evening, when round-trip flights cost $1,311 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to Australia is generally at night, which is peak travel time and where the average cost of a ticket is $1,539.

  • What is the cheapest month to fly from Idaho to Australia?

    The cheapest month for flights from Idaho to Australia is May, when tickets cost $1,033 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,966 and $1,734 respectively.

  • How long is the flight to Australia?

    An average nonstop flight from Idaho to Australia takes 26h 17m, covering a distance of 8127 miles. The shortest route is Boise (BOI) to Sydney (SYD) with an average flight time of 20h 06m.

  • What are the most popular destinations in Australia?

    Based on KAYAK flight searches, the most popular destination is Sydney (96% of total searches to Australia). The next most popular destination is Adelaide (4%).

See more FAQs

Book cheap flights from Idaho to Australia

Recent round-trip flight deals

5/17Sat
2 stopsAlaska Airlines
20h 45mGEG-SYD
5/24Sat
2 stopsAlaska Airlines
32h 05mSYD-GEG
$1,161
7/31Thu
2 stopsAlaska Airlines
20h 45mGEG-SYD
8/16Sat
2 stopsAlaska Airlines
35h 27mSYD-GEG
$1,162
9/10Wed
2 stopsAir New Zealand
21h 36mBOI-SYD
9/19Fri
2 stopsAir New Zealand
41h 40mSYD-BOI
$1,216
9/10Wed
2 stopsAir New Zealand
23h 26mBOI-SYD
9/19Fri
1 stopAir New Zealand
20h 00mSYD-BOI
$1,337
7/11Fri
2 stopsAir New Zealand
21h 30mBOI-SYD
7/26Sat
2 stopsAir New Zealand
37h 37mSYD-BOI
$1,344
7/31Thu
1 stopUnited Airlines
22h 27mGEG-SYD
8/16Sat
2 stopsUnited Airlines
28h 33mSYD-GEG
$1,361
7/31Thu
1 stopDelta
23h 03mGEG-SYD
8/16Sat
1 stopDelta
21h 25mSYD-GEG
$1,366
5/13Tue
2 stopsCathay Pacific
34h 45mBOI-SYD
5/27Tue
2 stopsCathay Pacific
41h 02mSYD-BOI
$1,375
6/1Sun
1 stopUnited Airlines
22h 01mGEG-BNE
6/8Sun
1 stopUnited Airlines
21h 17mBNE-GEG
$1,403
7/11Fri
1 stopDelta
22h 52mBOI-SYD
7/26Sat
1 stopDelta
21h 37mSYD-BOI
$1,466

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Australia

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.