Cheap flights from Idaho to Sydney from $892
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Idaho to Sydney
Keep the following information in mind while searching for Idaho to Sydney flight deals. Data was last updated 29 August 2025.
Round-trip from | $1,343 |
---|---|
One-way from | $892 |
Popular in | January |
Cheapest in | May |
Average price | $1,850 |
Find flight deals from Idaho to Sydney
Cheapest flights from Idaho to SydneyExplore the most affordable flight options available from Idaho to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Explore the most affordable flight options available from Idaho to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Idaho to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SpokaneSydney
GEG - SYD
GEGSYD
Spokane
Sat 8/11
13:47-09:05
2 stops24h 18m
Sydney Kingsford Smith
Sat 15/11
12:10-10:42
1 stop17h 32m
SpokaneSydney
GEG - SYD
GEGSYD
Spokane
Sat 27/9
12:35-06:55
1 stop25h 20m
Sydney Kingsford Smith
Sat 4/10
09:30-20:24
2 stops27h 54m
SpokaneSydney
GEG - SYD
GEGSYD
Spokane
Fri 21/11
16:05-09:05
2 stops46h 00m
Sydney Kingsford Smith
Fri 28/11
11:50-20:45
2 stops27h 55m
SpokaneSydney
GEG - SYD
GEGSYD
Spokane
Tue 4/11
16:05-07:00
2 stops67h 55m
Sydney Kingsford Smith
Mon 17/11
12:10-10:42
1 stop17h 32m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Tue 30/9
13:57-07:05
2 stops25h 08m
Sydney Kingsford Smith
Tue 7/10
10:10-19:37
2 stops26h 27m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Fri 26/9
13:57-07:30
2 stops25h 33m
Sydney Kingsford Smith
Fri 3/10
12:10-21:48
1 stop25h 38m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Wed 19/11
14:11-21:45
2 stops37h 34m
Sydney Kingsford Smith
Wed 18/2
09:55-22:22
2 stops30h 27m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Mon 27/10
14:11-08:45
2 stops25h 34m
Sydney Kingsford Smith
Sun 2/11
19:15-23:02
2 stops45h 47m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Tue 30/9
20:27-07:05
1 stop18h 38m
Sydney Kingsford Smith
Tue 7/10
10:10-23:05
2 stops29h 55m
BoiseSydney
BOI - SYD
BOISYD
Boise Air Term. Gowen Fld
Tue 30/12
07:15-08:45
2 stops31h 30m
Sydney Kingsford Smith
Sun 15/2
13:55-21:08
2 stops25h 13m
Best time to book a flight from Idaho to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Idaho with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Sydney
What is the cheapest month to book a flight from Idaho to Sydney?
Currently, May is the cheapest month in which you can book a flight from Idaho to Sydney (average of $129). Flying from Idaho to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Idaho to Sydney
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Idaho to Sydney?
Cheapflights makes it easy to find Idaho to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Idaho to Sydney?
Cheapflights helps you find that perfect flight to Sydney from Idaho by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Idaho to Sydney with no change fees?
Certainly. Search results for flights to Sydney from Idaho shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Idaho to Sydney become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Idaho today and book when prices fit your budget.