What is the cheapest airline that flies from Idaho to Australia?

United Airlines, Qantas Airways, and Cathay Pacific are the most popular carriers operating from Idaho to Australia

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.

$890 Cheap Flights from Idaho to Australia in 2025/26

1 adult

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Find the cheapest flights from Idaho to Australia

Round-trip

One-way

Cheap return flights

16:05 - 07:00GEG-SYD

67h 55m2 stops

12:10 - 20:45SYD-GEG

27h 35m2 stops

$1,399United Airlines

Find Deal

Tue, 4 Nov - Mon, 17 Nov

16:05 - 07:00GEG-SYD

67h 55m2 stops

12:10 - 20:45SYD-GEG

27h 35m2 stops

$1,400United Airlines

Find Deal

Tue, 4 Nov - Mon, 17 Nov

12:45 - 09:15GEG-SYD

25h 30m1 stop

12:10 - 10:42SYD-GEG

17h 32m1 stop

$1,403United Airlines

Find Deal

Tue, 4 Nov - Mon, 17 Nov

20:26 - 19:45BOI-SYD

30h 19m2 stops

21:40 - 13:10SYD-BOI

32h 30m2 stops

$1,489Alaska Airlines

Find Deal

Thu, 16 Oct - Tue, 21 Oct

19:20 - 19:45GEG-SYD

29h 25m2 stops

21:40 - 08:59SYD-GEG

30h 19m2 stops

$1,529Alaska Airlines

Find Deal

Mon, 12 Jan - Mon, 26 Jan

05:25 - 06:30GEG-BNE

31h 05m1 stop

09:40 - 20:55BNE-GEG

29h 15m1 stop

$1,657Qantas Airways

Find Deal

Sun, 9 Nov - Sun, 16 Nov

06:10 - 06:50GEG-SYD

29h 40m2 stops

09:40 - 21:03SYD-GEG

29h 23m2 stops

$1,747Delta

Find Deal

Tue, 3 Mar - Tue, 10 Mar

14:11 - 08:45BOI-SYD

24h 34m2 stops

13:55 - 13:30SYD-BOI

41h 35m2 stops

$1,815Air New Zealand

Find Deal

Mon, 10 Nov - Mon, 17 Nov

06:40 - 07:25GEG-SYD

29h 45m1 stop

17:45 - 22:33SYD-GEG

23h 48m1 stop

$1,885Qantas Airways

Find Deal

Mon, 12 Jan - Mon, 26 Jan

06:30 - 06:50GEG-SYD

29h 20m1 stop

13:15 - 21:30SYD-GEG

26h 15m1 stop

$1,945Delta

Find Deal

Tue, 3 Mar - Tue, 10 Mar

United Airlines flights from Idaho to Australia

Our best United Airlines deals on Idaho to Australia flight tickets

United Airlines

4 Nov

GEG16:05Spokane

67h 55m

2 stops

SYD07:00Sydney Kingsford Smith

17 Nov

SYD12:10Sydney Kingsford Smith

27h 35m

2 stops

GEG20:45Spokane

$1,399

Find similar

United Airlines

4 Nov

GEG16:05Spokane

67h 55m

2 stops

SYD07:00Sydney Kingsford Smith

17 Nov

SYD12:10Sydney Kingsford Smith

27h 35m

2 stops

GEG20:45Spokane

$1,400

Find similar

United Airlines

4 Nov

GEG12:45Spokane

25h 30m

1 stop

SYD09:15Sydney Kingsford Smith

17 Nov

SYD12:10Sydney Kingsford Smith

17h 32m

1 stop

GEG10:42Spokane

$1,403

Find similar

Alaska Airlines flights from Idaho to Australia

Our best Alaska Airlines deals on Idaho to Australia flight tickets

Alaska Airlines

16 Oct

BOI20:26Boise Air Term. Gowen Fld

30h 19m

2 stops

SYD19:45Sydney Kingsford Smith

21 Oct

SYD21:40Sydney Kingsford Smith

32h 30m

2 stops

BOI13:10Boise Air Term. Gowen Fld

$1,489

Find similar

Alaska Airlines

12 Jan

GEG19:20Spokane

29h 25m

2 stops

SYD19:45Sydney Kingsford Smith

26 Jan

SYD21:40Sydney Kingsford Smith

30h 19m

2 stops

GEG08:59Spokane

$1,529

Find similar

Alaska Airlines

16 Oct

BOI20:26Boise Air Term. Gowen Fld

30h 19m

2 stops

SYD19:45Sydney Kingsford Smith

19 Oct

SYD21:40Sydney Kingsford Smith

33h 56m

2 stops

BOI14:36Boise Air Term. Gowen Fld

$1,538

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 4/11

16:05-07:00

2 stops67h 55m

Sydney Kingsford Smith

Mon 17/11

12:10-20:45

2 stops27h 35m

$1,399

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 4/11

16:05-07:00

2 stops67h 55m

Sydney Kingsford Smith

Mon 17/11

12:10-20:45

2 stops27h 35m

$1,400

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 4/11

12:45-09:15

1 stop25h 30m

Sydney Kingsford Smith

Mon 17/11

12:10-10:42

1 stop17h 32m

$1,403

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 16/10

20:26-19:45

2 stops30h 19m

Sydney Kingsford Smith

Tue 21/10

21:40-13:10

2 stops32h 30m

$1,489

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 12/1

19:20-19:45

2 stops29h 25m

Sydney Kingsford Smith

Mon 26/1

21:40-08:59

2 stops30h 19m

$1,529

SpokaneBrisbane

GEG - BNE

GEGBNE

Spokane

Sun 9/11

05:25-06:30

1 stop31h 05m

Brisbane

Sun 16/11

09:40-20:55

1 stop29h 15m

$1,657

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

06:10-06:50

2 stops29h 40m

Sydney Kingsford Smith

Tue 10/3

09:40-21:03

2 stops29h 23m

$1,747

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 10/11

14:11-08:45

2 stops24h 34m

Sydney Kingsford Smith

Mon 17/11

13:55-13:30

2 stops41h 35m

$1,815

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 12/1

06:40-07:25

1 stop29h 45m

Sydney Kingsford Smith

Mon 26/1

17:45-22:33

1 stop23h 48m

$1,885

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

06:30-06:50

1 stop29h 20m

Sydney Kingsford Smith

Tue 10/3

13:15-21:30

1 stop26h 15m

$1,945

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

Direct flights	None

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 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.