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

American Airlines and Delta are the most popular carriers operating from Australia to Idaho

How long is the flight from Australia to Idaho?

Flight times from Australia to Idaho vary, but if you’re flying out of Sydney and flying into Boise (one of the most popular routes), then the duration is 17h 14m on average. Another popular route from Australia to Idaho is flying from Brisbane to Boise, which will take roughly 17h 34m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

There is 1 operator available for flights from Australia to Idaho as of September 2025.

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

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 Australia to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$507 Cheap Flights from Australia to Idaho in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Australia to Idaho

Round-trip

One-way

Recent round-trip flight deals from Australia to Idaho

12:00 pm - 12:45 pmMEL-GEG

42h 45m2 stops

6:00 am - 10:00 amGEG-MEL

33h 00m1 stop

$844United Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

10:40 am - 4:26 pmSYD-BOI

23h 46m2 stops

7:15 am - 8:30 amBOI-SYD

31h 15m1 stop

$851Delta

Find Deal

Wed, Jan 28 - Sun, Feb 22

12:00 pm - 12:59 pmMEL-GEG

42h 59m2 stops

3:45 pm - 5:00 amGEG-MEL

43h 15m2 stops

$901American Airlines

Find Deal

Wed, Mar 11 - Sun, Mar 15

11:35 am - 10:56 pmBNE-BOI

27h 21m2 stops

8:05 am - 10:35 amBOI-BNE

34h 30m2 stops

$922Multiple Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 15

9:40 am - 9:18 pmBNE-BOI

28h 38m1 stop

1:37 pm - 5:00 amBOI-BNE

23h 23m2 stops

$926American Airlines

Find Deal

Sun, Jan 18 - Thu, May 14

11:05 am - 10:45 pmSYD-BOI

28h 40m2 stops

2:31 pm - 7:00 amBOI-SYD

46h 29m2 stops

$937United Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 3

8:05 pm - 1:35 pmBNE-BOI

33h 30m1 stop

8:05 am - 5:25 amBOI-BNE

29h 20m1 stop

$969Multiple Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 15

11:30 am - 10:59 pmBNE-BOI

28h 29m1 stop

5:51 pm - 5:00 amBOI-BNE

19h 09m1 stop

$1,196Qantas Airways

Find Deal

Sun, Jan 18 - Thu, May 14

12:10 am - 10:59 pmBNE-BOI

39h 49m2 stops

5:51 pm - 10:25 pmBOI-BNE

36h 34m2 stops

$1,459Cathay Pacific

Find Deal

Sat, Jan 17 - Thu, May 14

5:00 pm - 11:02 pmNTL-BOI

47h 02m2 stops

8:08 am - 9:05 pmBOI-NTL

42h 57m2 stops

$2,392Qantas Airways

Find Deal

Thu, Oct 30 - Mon, Nov 3

Delta flights from Australia to Idaho

Our best Delta deals on Australia to Idaho flight tickets

Delta

Jan 28

SYD10:40 amSydney Kingsford Smith

23h 46m

2 stops

BOI4:26 pmBoise Air Term. Gowen Fld

Feb 22

BOI7:15 amBoise Air Term. Gowen Fld

31h 15m

1 stop

SYD8:30 amSydney Kingsford Smith

$851

Find similar

Delta

Oct 30

SYD9:40 amSydney Kingsford Smith

22h 25m

1 stop

BOI3:05 pmBoise Air Term. Gowen Fld

Nov 3

BOI4:00 pmBoise Air Term. Gowen Fld

22h 30m

1 stop

SYD8:30 amSydney Kingsford Smith

$959

Find similar

United Airlines flights from Australia to Idaho

Our best United Airlines deals on Australia to Idaho flight tickets

United Airlines

Oct 30

MEL12:00 pmMelbourne

42h 45m

2 stops

GEG12:45 pmSpokane

Nov 6

GEG6:00 amSpokane

33h 00m

1 stop

MEL10:00 amMelbourne

$844

Find similar

United Airlines

Oct 30

SYD11:05 amSydney Kingsford Smith

28h 40m

2 stops

BOI10:45 pmBoise Air Term. Gowen Fld

Nov 3

BOI2:31 pmBoise Air Term. Gowen Fld

46h 29m

2 stops

SYD7:00 amSydney Kingsford Smith

$937

Find similar

United Airlines

Oct 30

SYD12:10 pmSydney Kingsford Smith

20h 53m

1 stop

BOI4:03 pmBoise Air Term. Gowen Fld

Nov 3

BOI2:11 pmBoise Air Term. Gowen Fld

24h 54m

1 stop

SYD9:05 amSydney Kingsford Smith

$957

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Thu 10/30

12:00 pm-12:45 pm

2 stops42h 45m

Spokane

Thu 11/6

6:00 am-10:00 am

1 stop33h 00m

$844

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 1/28

10:40 am-4:26 pm

2 stops23h 46m

Boise Air Term. Gowen Fld

Sun 2/22

7:15 am-8:30 am

1 stop31h 15m

$851

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 3/11

12:00 pm-12:59 pm

2 stops42h 59m

Spokane

Sun 3/15

3:45 pm-5:00 am

2 stops43h 15m

$901

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Tue 10/7

11:35 am-10:56 pm

2 stops27h 21m

Boise Air Term. Gowen Fld

Wed 10/15

8:05 am-10:35 am

2 stops34h 30m

$922

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Sun 1/18

9:40 am-9:18 pm

1 stop28h 38m

Boise Air Term. Gowen Fld

Thu 5/14

1:37 pm-5:00 am

2 stops23h 23m

$926

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 10/30

11:05 am-10:45 pm

2 stops28h 40m

Boise Air Term. Gowen Fld

Mon 11/3

2:31 pm-7:00 am

2 stops46h 29m

$937

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Tue 10/7

8:05 pm-1:35 pm

1 stop33h 30m

Boise Air Term. Gowen Fld

Wed 10/15

8:05 am-5:25 am

1 stop29h 20m

$969

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Sun 1/18

11:30 am-10:59 pm

1 stop28h 29m

Boise Air Term. Gowen Fld

Thu 5/14

5:51 pm-5:00 am

1 stop19h 09m

$1,196

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Sat 1/17

12:10 am-10:59 pm

2 stops39h 49m

Boise Air Term. Gowen Fld

Thu 5/14

5:51 pm-10:25 pm

2 stops36h 34m

$1,459

NewcastleBoise

NTL - BOI

NTLBOI

Newcastle Williamtown

Thu 10/30

5:00 pm-11:02 pm

2 stops47h 02m

Boise Air Term. Gowen Fld

Mon 11/3

8:08 am-9:05 pm

2 stops42h 57m

$2,392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Australia to Idaho

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

Other information

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is in the afternoon. momondo users have found flights departing from Australia to Idaho in the afternoon for as low as $984. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $1,056 per ticket.

Can stopping save me money on Australia to Idaho flights?

You could potentially save up to 72% on your flight if you consider stops on a Australia to Idaho flight.

Cheap Australia to Idaho flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Australia to Idaho?
Prices for flights from Australia to Idaho were last updated today.
How many operators does momondo search for flights from Australia to Idaho?
There is 1 operator available for flights from Australia to Idaho as of September 2025.
How old do you have to be to fly from Australia to Idaho?
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 Australia to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Australia to Idaho

Compare and see reviews for airlines that fly from Australia to Idaho with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,019	Free Cancellation	Rating 7.4 8,924 reviews		Search United Airlines flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Idaho from Australia which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Australia to Idaho flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Australia to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.