Cheap flights from Idaho to Australia from $1,183

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Australia departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

United Airlines Logo
05:15 - 07:00GEG-SYD
32h 45m2 stops
United Airlines Logo
09:30 - 21:03SYD-GEG
28h 33m2 stops
$1,350United Airlines
Find Deal
Sat, 30 Aug - Sat, 6 Sep
United Airlines Logo
16:05 - 07:00GEG-SYD
67h 55m2 stops
United Airlines Logo
12:10 - 10:42SYD-GEG
17h 32m1 stop
$1,400United Airlines
Find Deal
Tue, 4 Nov - Mon, 17 Nov
Qantas Airways Logo
14:38 - 09:00GEG-SYD
23h 22m1 stop
Qantas Airways Logo
17:45 - 13:58SYD-GEG
39h 13m1 stop
$1,405Qantas Airways
Find Deal
Tue, 4 Nov - Mon, 17 Nov
 Logo
14:28 - 07:05BOI-SYD
24h 37m2 stops
 Logo
09:10 - 15:54SYD-BOI
22h 44m2 stops
$1,482
Find Deal
Tue, 9 Sep - Tue, 16 Sep
American Airlines Logo
14:06 - 09:00BOI-SYD
24h 54m2 stops
American Airlines Logo
11:15 - 16:51SYD-BOI
23h 36m2 stops
$1,557American Airlines
Find Deal
Wed, 19 Nov - Wed, 18 Feb
American Airlines Logo
13:57 - 07:05BOI-SYD
25h 08m2 stops
American Airlines Logo
09:10 - 20:02SYD-BOI
26h 52m2 stops
$1,561American Airlines
Find Deal
Wed, 24 Sep - Wed, 1 Oct
Qantas Airways Logo
12:29 - 06:55GEG-SYD
25h 26m1 stop
Qantas Airways Logo
17:45 - 22:25SYD-GEG
21h 40m1 stop
$1,632Qantas Airways
Find Deal
Sat, 30 Aug - Sat, 6 Sep
 Logo
19:17 - 14:40BOI-SYD
27h 23m2 stops
 Logo
17:45 - 22:54SYD-BOI
21h 09m1 stop
$1,762
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Alaska Airlines Logo
20:26 - 08:05BOI-SYD
18h 39m1 stop
Alaska Airlines Logo
11:15 - 13:40SYD-BOI
20h 25m1 stop
$1,765Alaska Airlines
Find Deal
Sat, 18 Oct - Fri, 14 Nov
Alaska Airlines Logo
09:00 - 08:05BOI-SYD
30h 05m2 stops
Alaska Airlines Logo
10:10 - 13:35SYD-BOI
20h 25m1 stop
$1,773Alaska Airlines
Find Deal
Thu, 9 Oct - Sat, 18 Oct

Qantas Airways flights from Idaho to Australia

Our best Qantas Airways deals on Idaho to Australia flight tickets
Qantas Airways
4 Nov
GEG14:38Spokane
23h 22m
1 stop
SYD09:00Sydney Kingsford Smith
17 Nov
SYD17:45Sydney Kingsford Smith
39h 13m
1 stop
GEG13:58Spokane
Qantas Airways
30 Aug
GEG12:29Spokane
25h 26m
1 stop
SYD06:55Sydney Kingsford Smith
6 Sept
SYD17:45Sydney Kingsford Smith
21h 40m
1 stop
GEG22:25Spokane
Qantas Airways
11 Sept
GEG13:25Spokane
30h 45m
2 stops
BNE13:10Brisbane
26 Sept
BNE11:25Brisbane
28h 00m
2 stops
GEG22:25Spokane

Alaska Airlines flights from Idaho to Australia

Our best Alaska Airlines deals on Idaho to Australia flight tickets
Alaska Airlines
18 Oct
BOI20:26Boise Air Term. Gowen Fld
18h 39m
1 stop
SYD08:05Sydney Kingsford Smith
14 Nov
SYD11:15Sydney Kingsford Smith
20h 25m
1 stop
BOI13:40Boise Air Term. Gowen Fld
Alaska Airlines
9 Oct
BOI09:00Boise Air Term. Gowen Fld
30h 05m
2 stops
SYD08:05Sydney Kingsford Smith
18 Oct
SYD10:10Sydney Kingsford Smith
20h 25m
1 stop
BOI13:35Boise Air Term. Gowen Fld
Alaska Airlines
15 Oct
BOI10:15Boise Air Term. Gowen Fld
52h 50m
2 stops
SYD08:05Sydney Kingsford Smith
14 Nov
SYD11:15Sydney Kingsford Smith
30h 39m
2 stops
BOI23:54Boise Air Term. Gowen Fld

momondo Fare Finder

 
Customise your flight search to find flights from Idaho to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 11 August 2025.
Use the filters below to find and compare flights from Idaho to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sat 30/8

05:15-07:00

2 stops32h 45m

Sydney Kingsford Smith

Sat 6/9

09:30-21:03

2 stops28h 33m

$1,350

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

$1,400

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 4/11

14:38-09:00

1 stop23h 22m

Sydney Kingsford Smith

Mon 17/11

17:45-13:58

1 stop39h 13m

$1,405

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 9/9

14:28-07:05

2 stops24h 37m

Sydney Kingsford Smith

Tue 16/9

09:10-15:54

2 stops22h 44m

$1,482

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 19/11

14:06-09:00

2 stops24h 54m

Sydney Kingsford Smith

Wed 18/2

11:15-16:51

2 stops23h 36m

$1,557

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 24/9

13:57-07:05

2 stops25h 08m

Sydney Kingsford Smith

Wed 1/10

09:10-20:02

2 stops26h 52m

$1,561

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sat 30/8

12:29-06:55

1 stop25h 26m

Sydney Kingsford Smith

Sat 6/9

17:45-22:25

1 stop21h 40m

$1,632

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 9/9

19:17-14:40

2 stops27h 23m

Sydney Kingsford Smith

Tue 16/9

17:45-22:54

1 stop21h 09m

$1,762

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Sat 18/10

20:26-08:05

1 stop18h 39m

Sydney Kingsford Smith

Fri 14/11

11:15-13:40

1 stop20h 25m

$1,765

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 9/10

09:00-08:05

2 stops30h 05m

Sydney Kingsford Smith

Sat 18/10

10:10-13:35

1 stop20h 25m

$1,773

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Idaho to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Idaho to Australia flights?

You could potentially save up to 44% on your flight if you consider stops on a Idaho to Australia flight.

Cheap Idaho to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Australia

Best price found

$1,183

Fastest flight time

18h 38m

Direct flights

None

Airports in Australia

3 airports
The best one-way flight to Australia from Idaho in the past 72 hours is $1,183. The best return flight deal from Idaho to Australia found on momondo in the last 72 hours is $1,350.
The fastest flight from Idaho to Australia takes 18h 38m
There are no direct flights from Idaho to Australia. Popular non-direct routes for this connection are Spokane Airport - Sydney Kingsford Smith Airport, Boise Air Term. Gowen Fld Airport - Sydney Kingsford Smith Airport and Boise Air Term. Gowen Fld Airport - Adelaide Airport.
There are 3 airports near Australia: Brisbane (BNE), Adelaide (ADL), Sydney Kingsford Smith (SYD)
  • When did momondo last update prices for flights from Idaho to Australia?

    Prices for flights from Idaho to Australia were last updated today.

  • How old do you have to be to fly from Idaho to Australia?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Australia.

  • What documentation or ID do you need to fly to Australia?

    The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Australia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Australia. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to Australia with flexible booking policies on momondo?

All flight searches from Idaho to Australia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho to Australia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Idaho.

I’m not ready to book a flight from Idaho to Australia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Idaho to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.

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1 adult
Sat 16/8
Sat 23/8

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