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

Qantas Airways is the most popular carrier operating from Idaho to Australia

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?

The number of operators available for flights from Idaho to Australia is 2 as of June 2026.

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.

$512 Cheap Flights from Idaho to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:05 pm - 9:00 am

GEG

SYD

20h 55m

1 stop

11:15 am - 5:14 pm

SYD

GEG

24h 59m

3 stops

$1,095Multiple Airlines

Sun, Nov 1 - Sat, Nov 21

12:57 pm - 6:25 am

GEG

SYD

22h 28m

2 stops

11:15 am - 5:14 pm

SYD

GEG

24h 59m

3 stops

$1,096Multiple Airlines

Sun, Nov 1 - Sat, Nov 21

5:47 pm - 9:00 am

GEG

SYD

20h 13m

1 stop

9:25 pm - 4:08 pm

SYD

GEG

37h 43m

1 stop

$1,100Multiple Airlines

Wed, Dec 2 - Wed, Dec 16

7:00 am - 9:35 am

GEG

SYD

31h 35m

2 stops

11:20 am - 9:01 pm

SYD

GEG

28h 41m

2 stops

$1,136Air Canada

Sun, Nov 1 - Sat, Nov 21

1:55 pm - 7:30 am

BOI

SYD

25h 35m

2 stops

9:10 am - 4:49 pm

SYD

BOI

23h 39m

2 stops

$1,189American Airlines

Wed, Aug 5 - Wed, Aug 12

1:57 pm - 7:30 am

BOI

SYD

25h 33m

2 stops

12:00 pm - 10:11 pm

SYD

BOI

26h 11m

1 stop

$1,239American Airlines

Thu, Jul 30 - Mon, Aug 31

6:57 pm - 8:05 am

BOI

SYD

20h 08m

1 stop

11:15 am - 12:28 pm

SYD

BOI

18h 13m

1 stop

$1,254Qantas Airways

Tue, Oct 20 - Tue, Oct 27

12:33 pm - 9:00 am

GEG

BNE

51h 27m

2 stops

6:05 am - 10:30 am

BNE

GEG

21h 25m

2 stops

$1,266United Airlines

Tue, Aug 11 - Sat, Aug 15

2:00 pm - 11:10 am

BOI

ADL

29h 40m

2 stops

6:05 am - 4:44 pm

ADL

BOI

26h 09m

2 stops

$1,605United Airlines

Wed, Jul 29 - Sun, Aug 2

6:30 am - 11:15 am

GEG

PER

37h 45m

3 stops

10:35 am - 11:07 pm

PER

GEG

51h 32m

3 stops

$1,815Qantas Airways

Sat, Aug 1 - Sat, Aug 8

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American Airlines flights from Idaho to Australia

Our best American Airlines deals on Idaho to Australia flight tickets

American Airlines

Aug 5

BOI1:55 pmBoise Air Term. Gowen Fld

25h 35m

2 stops

SYD7:30 amSydney Kingsford Smith

Aug 12

SYD9:10 amSydney Kingsford Smith

23h 39m

2 stops

BOI4:49 pmBoise Air Term. Gowen Fld

$1,189

American Airlines

Jul 30

BOI1:57 pmBoise Air Term. Gowen Fld

25h 33m

2 stops

SYD7:30 amSydney Kingsford Smith

Aug 31

SYD12:00 pmSydney Kingsford Smith

26h 11m

1 stop

BOI10:11 pmBoise Air Term. Gowen Fld

$1,239

United Airlines flights from Idaho to Australia

Our best United Airlines deals on Idaho to Australia flight tickets

United Airlines

Aug 8

GEG12:37 pmSpokane

25h 18m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 15

SYD10:20 amSydney Kingsford Smith

25h 31m

1 stop

GEG6:51 pmSpokane

$1,228

United Airlines

Dec 2

GEG5:00 amSpokane

33h 05m

2 stops

SYD9:05 amSydney Kingsford Smith

Dec 16

SYD11:20 amSydney Kingsford Smith

28h 49m

2 stops

GEG9:09 pmSpokane

$1,232

United Airlines

Dec 2

GEG5:00 amSpokane

33h 05m

2 stops

SYD9:05 amSydney Kingsford Smith

Dec 16

SYD11:20 amSydney Kingsford Smith

28h 49m

2 stops

GEG9:09 pmSpokane

$1,233

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 11/1

5:05 pm-9:00 am

1 stop20h 55m

Sydney Kingsford Smith

Sat 11/21

11:15 am-5:14 pm

3 stops24h 59m

$1,095

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 11/1

12:57 pm-6:25 am

2 stops22h 28m

Sydney Kingsford Smith

Sat 11/21

11:15 am-5:14 pm

3 stops24h 59m

$1,096

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 12/2

5:47 pm-9:00 am

1 stop20h 13m

Sydney Kingsford Smith

Wed 12/16

9:25 pm-4:08 pm

1 stop37h 43m

$1,100

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 11/1

7:00 am-9:35 am

2 stops31h 35m

Sydney Kingsford Smith

Sat 11/21

11:20 am-9:01 pm

2 stops28h 41m

$1,136

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 8/5

1:55 pm-7:30 am

2 stops25h 35m

Sydney Kingsford Smith

Wed 8/12

9:10 am-4:49 pm

2 stops23h 39m

$1,189

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 7/30

1:57 pm-7:30 am

2 stops25h 33m

Sydney Kingsford Smith

Mon 8/31

12:00 pm-10:11 pm

1 stop26h 11m

$1,239

Quickest round-trip

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 10/20

6:57 pm-8:05 am

1 stop20h 08m

Sydney Kingsford Smith

Tue 10/27

11:15 am-12:28 pm

1 stop18h 13m

$1,254

SpokaneBrisbane

GEG - BNE

GEGBNE

Spokane

Tue 8/11

12:33 pm-9:00 am

2 stops51h 27m

Brisbane

Sat 8/15

6:05 am-10:30 am

2 stops21h 25m

$1,266

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Wed 7/29

2:00 pm-11:10 am

2 stops29h 40m

Adelaide

Sun 8/2

6:05 am-4:44 pm

2 stops26h 09m

$1,605

SpokanePerth

GEG - PER

GEGPER

Spokane

Sat 8/1

6:30 am-11:15 am

3 stops37h 45m

Perth

Sat 8/8

10:35 am-11:07 pm

3 stops51h 32m

$1,815

Flights are sorted by cheapest round-trip 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

What is the cheapest month to fly to Australia?

The month of January is, on average, the cheapest month to fly to Australia from Idaho, with most prices found around $0. If you aren’t able to travel during the month of January, then book flights to Australia from Idaho during December instead. Flights to Australia in December, while not as cheap as those in January, still average around $987.

Can stopping save me money on Idaho to Australia flights?

You could potentially save up to 3% 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	20h 13m
Direct flights	None

The fastest flight from Idaho to Australia takes 20h 13m

There are no direct flights from Idaho to Australia. There are no popular flight routes from Idaho to Australia.

Search flight deals

Frequently asked questions about flying from Idaho to Australia

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?
The number of operators available for flights from Idaho to Australia is 2 as of June 2026.
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
United Airlines	PriceFrom $966	Free Cancellation	Rating 7.4 9,875 reviews		Search United Airlines flights
American Airlines	PriceFrom $967	Free Cancellation	Rating 7.1 11,739 reviews		Search American 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.