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

Qantas Airways, United Airlines, and Delta 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 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 May 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.

$618 Cheap Flights from Idaho to Australia in 2026

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Find the cheapest flights from Idaho to Australia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:51 pm - 8:00 am

GEG

SYD

23h 09m

1 stop

7:15 pm - 8:55 pm

SYD

GEG

44h 40m

2 stops

$1,137Qantas Airways

Thu, Oct 29 - Mon, Nov 2

2:51 pm - 8:00 am

GEG

SYD

23h 09m

1 stop

7:15 pm - 8:55 pm

SYD

GEG

44h 40m

2 stops

$1,139Qantas Airways

Thu, Oct 29 - Mon, Nov 2

12:17 pm - 6:55 am

BOI

SYD

26h 38m

1 stop

12:00 pm - 10:20 pm

SYD

BOI

26h 20m

1 stop

$1,157American Airlines

Tue, Aug 11 - Tue, Aug 18

6:58 pm - 6:55 am

BOI

SYD

19h 57m

1 stop

10:20 am - 4:44 pm

SYD

BOI

22h 24m

1 stop

$1,160United Airlines

Wed, May 20 - Wed, Jun 17

12:17 pm - 6:55 am

BOI

SYD

26h 38m

1 stop

5:50 pm - 10:40 pm

SYD

BOI

20h 50m

2 stops

$1,161American Airlines

Tue, Aug 11 - Tue, Aug 18

2:33 pm - 7:00 am

BOI

SYD

24h 27m

2 stops

10:20 am - 9:35 pm

SYD

BOI

27h 15m

2 stops

$1,165United Airlines

Wed, May 20 - Wed, Jun 17

4:20 pm - 6:50 am

GEG

SYD

21h 30m

1 stop

9:15 am - 3:48 pm

SYD

GEG

23h 33m

1 stop

$1,195Delta

Mon, Jun 8 - Mon, Jun 15

4:20 pm - 6:50 am

GEG

SYD

21h 30m

1 stop

9:15 am - 11:59 pm

SYD

GEG

31h 44m

2 stops

$1,200Delta

Mon, Jun 8 - Mon, Jun 15

4:47 pm - 6:10 am

GEG

SYD

18h 23m

1 stop

2:05 pm - 8:55 pm

SYD

GEG

25h 50m

1 stop

$1,227Multiple Airlines

Sun, Nov 1 - Sat, Nov 21

4:47 pm - 6:10 am

GEG

SYD

18h 23m

1 stop

2:05 pm - 8:55 pm

SYD

GEG

25h 50m

1 stop

$1,228Multiple Airlines

Sun, Nov 1 - Sat, Nov 21

Qantas Airways flights from Idaho to Australia

Our best Qantas Airways deals on Idaho to Australia flight tickets

Qantas Airways

Oct 29

GEG2:51 pmSpokane

23h 09m

1 stop

SYD8:00 amSydney Kingsford Smith

Nov 2

SYD7:15 pmSydney Kingsford Smith

44h 40m

2 stops

GEG8:55 pmSpokane

$1,137

Qantas Airways

Oct 29

GEG2:51 pmSpokane

23h 09m

1 stop

SYD8:00 amSydney Kingsford Smith

Nov 2

SYD7:15 pmSydney Kingsford Smith

44h 40m

2 stops

GEG8:55 pmSpokane

$1,139

Qantas Airways

Jun 3

GEG4:09 pmSpokane

19h 51m

1 stop

BNE5:00 amBrisbane

Jun 10

BNE8:45 amBrisbane

28h 58m

2 stops

GEG8:43 pmSpokane

$1,190

Delta flights from Idaho to Australia

Our best Delta deals on Idaho to Australia flight tickets

Delta

Jun 8

GEG4:20 pmSpokane

21h 30m

1 stop

SYD6:50 amSydney Kingsford Smith

Jun 15

SYD9:15 amSydney Kingsford Smith

23h 33m

1 stop

GEG3:48 pmSpokane

$1,195

Delta

Jun 8

GEG4:20 pmSpokane

21h 30m

1 stop

SYD6:50 amSydney Kingsford Smith

Jun 15

SYD9:15 amSydney Kingsford Smith

31h 44m

2 stops

GEG11:59 pmSpokane

$1,200

Delta

Jun 23

GEG4:20 pmSpokane

21h 30m

1 stop

SYD6:50 amSydney Kingsford Smith

Jun 30

SYD9:15 amSydney Kingsford Smith

23h 33m

1 stop

GEG3:48 pmSpokane

$1,495

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 10/29

2:51 pm-8:00 am

1 stop23h 09m

Sydney Kingsford Smith

Mon 11/2

7:15 pm-8:55 pm

2 stops44h 40m

$1,137

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 10/29

2:51 pm-8:00 am

1 stop23h 09m

Sydney Kingsford Smith

Mon 11/2

7:15 pm-8:55 pm

2 stops44h 40m

$1,139

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 8/11

12:17 pm-6:55 am

1 stop26h 38m

Sydney Kingsford Smith

Tue 8/18

12:00 pm-10:20 pm

1 stop26h 20m

$1,157

Quickest round-trip

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 5/20

6:58 pm-6:55 am

1 stop19h 57m

Sydney Kingsford Smith

Wed 6/17

10:20 am-4:44 pm

1 stop22h 24m

$1,160

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 8/11

12:17 pm-6:55 am

1 stop26h 38m

Sydney Kingsford Smith

Tue 8/18

5:50 pm-10:40 pm

2 stops20h 50m

$1,161

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 5/20

2:33 pm-7:00 am

2 stops24h 27m

Sydney Kingsford Smith

Wed 6/17

10:20 am-9:35 pm

2 stops27h 15m

$1,165

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 6/8

4:20 pm-6:50 am

1 stop21h 30m

Sydney Kingsford Smith

Mon 6/15

9:15 am-3:48 pm

1 stop23h 33m

$1,195

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 6/8

4:20 pm-6:50 am

1 stop21h 30m

Sydney Kingsford Smith

Mon 6/15

9:15 am-11:59 pm

2 stops31h 44m

$1,200

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 11/1

4:47 pm-6:10 am

1 stop18h 23m

Sydney Kingsford Smith

Sat 11/21

2:05 pm-8:55 pm

1 stop25h 50m

$1,227

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Sun 11/1

4:47 pm-6:10 am

1 stop18h 23m

Sydney Kingsford Smith

Sat 11/21

2:05 pm-8:55 pm

1 stop25h 50m

$1,228

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 September instead. Flights to Australia in September, while not as cheap as those in January, still average around $873.

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	18h 23m
Direct flights	None

The fastest flight from Idaho to Australia takes 18h 23m

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 May 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 9,694 reviews		Search United Airlines flights
American Airlines	PriceFrom $967	Free Cancellation	Rating 7.1 11,667 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.