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Cheap flights from Idaho to Australia from $494

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 4/22. 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
0 bags

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Find the cheapest flights from Idaho to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
3:45 pm - 6:10 am
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
7:15 pm - 9:12 pm
SYD
-
GEG
43h 57m
2 stops
$947Qantas Airways
Tue, Mar 3 - Tue, Mar 10
Qantas Airways Logo
3:45 pm - 6:10 am
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
7:15 pm - 9:12 pm
SYD
-
GEG
43h 57m
2 stops
$948Qantas Airways
Tue, Mar 3 - Tue, Mar 10
Qantas Airways Logo
3:45 pm - 6:10 am
GEG
-
SYD
19h 25m
1 stop
Qantas Airways Logo
7:15 pm - 9:12 pm
SYD
-
GEG
43h 57m
2 stops
$950Qantas Airways
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
3:10 pm - 9:00 am
GEG
-
SYD
23h 50m
2 stops
American Airlines Logo
6:50 pm - 11:44 am
SYD
-
GEG
34h 54m
2 stops
$958American Airlines
Mon, Mar 23 - Mon, Mar 30
American Airlines Logo
6:00 am - 6:55 am
GEG
-
SYD
30h 55m
1 stop
American Airlines Logo
6:50 pm - 11:44 am
SYD
-
GEG
34h 54m
2 stops
$960American Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
6:12 pm - 9:00 am
GEG
-
SYD
20h 48m
1 stop
Multiple Airlines Logo
6:50 pm - 10:52 pm
SYD
-
GEG
22h 02m
1 stop
$967Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Delta Logo
3:45 pm - 8:20 am
GEG
-
BNE
22h 35m
2 stops
Delta Logo
10:05 am - 12:02 am
BNE
-
GEG
30h 57m
2 stops
$990Delta
Wed, Feb 25 - Wed, Mar 11
Multiple Airlines Logo
8:07 am - 7:30 am
BOI
-
SYD
31h 23m
1 stop
Multiple Airlines Logo
1:15 pm - 11:02 pm
SYD
-
BOI
25h 47m
2 stops
$1,005Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
4:01 pm - 6:30 am
GEG
-
BNE
45h 29m
2 stops
United Airlines Logo
10:30 am - 6:51 pm
BNE
-
GEG
25h 21m
1 stop
$1,140United Airlines
Tue, Mar 31 - Wed, Apr 22
United Airlines Logo
7:02 am - 11:20 am
GEG
-
PER
37h 18m
2 stops
United Airlines Logo
11:45 pm - 9:03 pm
PER
-
GEG
36h 18m
2 stops
$1,854United Airlines
Sun, Mar 8 - Tue, Mar 10

American Airlines flights from Idaho to Australia

Our best American Airlines deals on Idaho to Australia flight tickets
American Airlines
Mar 23
GEG3:10 pmSpokane
23h 50m
2 stops
SYD9:00 amSydney Kingsford Smith
Mar 30
SYD6:50 pmSydney Kingsford Smith
34h 54m
2 stops
GEG11:44 amSpokane
$958
American Airlines
Mar 23
GEG6:00 amSpokane
30h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
Mar 30
SYD6:50 pmSydney Kingsford Smith
34h 54m
2 stops
GEG11:44 amSpokane
$960
American Airlines
Feb 22
GEG6:00 amSpokane
29h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
Mar 8
SYD1:05 pmSydney Kingsford Smith
26h 07m
1 stop
GEG8:12 pmSpokane
$973

United Airlines flights from Idaho to Australia

Our best United Airlines deals on Idaho to Australia flight tickets
United Airlines
Mar 31
GEG4:01 pmSpokane
45h 29m
2 stops
BNE6:30 amBrisbane
Apr 22
BNE10:30 amBrisbane
25h 21m
1 stop
GEG6:51 pmSpokane
$1,140
United Airlines
Feb 18
BOI8:41 amBoise Air Term. Gowen Fld
27h 39m
1 stop
SYD6:20 amSydney Kingsford Smith
Feb 22
SYD12:10 pmSydney Kingsford Smith
17h 07m
1 stop
BOI11:17 amBoise Air Term. Gowen Fld
$1,219
United Airlines
Feb 18
BOI10:53 amBoise Air Term. Gowen Fld
25h 27m
1 stop
SYD6:20 amSydney Kingsford Smith
Feb 22
SYD2:00 pmSydney Kingsford Smith
25h 11m
1 stop
BOI9:11 pmBoise Air Term. Gowen Fld
$1,220

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated February 6, 2026.
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

Tue 3/3

3:45 pm-6:10 am

1 stop19h 25m

Sydney Kingsford Smith

Tue 3/10

7:15 pm-9:12 pm

2 stops43h 57m

$947

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

3:45 pm-6:10 am

1 stop19h 25m

Sydney Kingsford Smith

Tue 3/10

7:15 pm-9:12 pm

2 stops43h 57m

$948

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

3:45 pm-6:10 am

1 stop19h 25m

Sydney Kingsford Smith

Tue 3/10

7:15 pm-9:12 pm

2 stops43h 57m

$950

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/23

3:10 pm-9:00 am

2 stops23h 50m

Sydney Kingsford Smith

Mon 3/30

6:50 pm-11:44 am

2 stops34h 54m

$958

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/23

6:00 am-6:55 am

1 stop30h 55m

Sydney Kingsford Smith

Mon 3/30

6:50 pm-11:44 am

2 stops34h 54m

$960

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 3/23

6:12 pm-9:00 am

1 stop20h 48m

Sydney Kingsford Smith

Mon 3/30

6:50 pm-10:52 pm

1 stop22h 02m

$967

SpokaneBrisbane

GEG - BNE

GEGBNE

Spokane

Wed 2/25

3:45 pm-8:20 am

2 stops22h 35m

Brisbane

Wed 3/11

10:05 am-12:02 am

2 stops30h 57m

$990

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 4/13

8:07 am-7:30 am

1 stop31h 23m

Sydney Kingsford Smith

Mon 4/20

1:15 pm-11:02 pm

2 stops25h 47m

$1,005

SpokaneBrisbane

GEG - BNE

GEGBNE

Spokane

Tue 3/31

4:01 pm-6:30 am

2 stops45h 29m

Brisbane

Wed 4/22

10:30 am-6:51 pm

1 stop25h 21m

$1,140

SpokanePerth

GEG - PER

GEGPER

Spokane

Sun 3/8

7:02 am-11:20 am

2 stops37h 18m

Perth

Tue 3/10

11:45 pm-9:03 pm

2 stops36h 18m

$1,854

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 24% 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

Fastest flight time

19h 25m

Direct flights

None
The fastest flight from Idaho to Australia takes 19h 25m
There are no direct flights from Idaho to Australia. There are no popular flight routes from Idaho to Australia.
Search flight deals

  • When did momondo last update prices for flights from Idaho to Australia?

    Prices for flights from Idaho to Australia are updated daily.

  • How many operators does momondo search for flights from Idaho to Australia?

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Australia

Compare and see reviews for airlines that fly from Idaho to Australia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $864Free CancellationRating
7.2
11,246 reviews
Search American Airlines flights
United AirlinesPriceFrom $888Free CancellationRating
7.4
9,244 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Australia. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Idaho to Australia flights to just show those with 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?

Of course. momondo tracks the price of Idaho to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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