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

Qantas Airways, Delta, and United Airlines 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 September 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.

$577 Cheap Flights from Idaho to Australia in 2026/27

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.

10:35 am - 7:30 amIDA Idaho Falls Fanning Field-BNE Brisbane

27h 55m2 stops Denver Intl San Francisco

11:20 am - 9:09 pmBNE Brisbane-IDA Idaho Falls Fanning Field

26h 49m2 stops San Francisco Denver Intl

$1,132United Airlines

Fri, Nov 6 - Fri, Nov 13

7:30 pm - 8:35 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

43h 05m2 stops Los Angeles Auckland Intl

9:55 am - 9:33 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

29h 38m2 stops Auckland Intl San Francisco

$1,147Air New Zealand

Sun, Nov 8 - Sun, Nov 15

4:00 pm - 8:30 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

22h 30m1 stop Los Angeles

10:40 am - 2:58 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

22h 18m1 stop Los Angeles

$1,189Delta

Sun, Nov 8 - Sun, Nov 15

6:14 pm - 9:00 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

20h 46m2 stops Phoenix Sky Harbor Intl Los Angeles

2:05 pm - 10:42 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

26h 37m1 stop Dallas/Fort Worth

$1,190American Airlines

Sun, Nov 8 - Sun, Nov 15

7:30 pm - 8:35 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

43h 05m2 stops Los Angeles Auckland Intl

11:50 am - 9:33 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

27h 43m2 stops Auckland Intl San Francisco

$1,195Air New Zealand

Sat, Nov 7 - Sat, Nov 14

2:35 pm - 1:30 pmIDA Idaho Falls Fanning Field-BNE Brisbane

29h 55m3 stops Denver Intl San Francisco Sydney Kingsford Smith

11:20 am - 3:38 pmBNE Brisbane-IDA Idaho Falls Fanning Field

21h 18m2 stops San Francisco Denver Intl

$1,196United Airlines

Sun, Nov 8 - Sun, Nov 15

5:30 pm - 7:30 amIDA Idaho Falls Fanning Field-BNE Brisbane

45h 00m2 stops Denver Intl San Francisco

11:20 am - 3:38 pmBNE Brisbane-IDA Idaho Falls Fanning Field

21h 18m2 stops San Francisco Denver Intl

$1,236United Airlines

Sun, Nov 8 - Sun, Nov 15

4:05 pm - 9:00 amBOI Boise Air Term. Gowen Fld-BNE Brisbane

47h 55m2 stops San Francisco Sydney Kingsford Smith

11:20 am - 3:03 pmBNE Brisbane-BOI Boise Air Term. Gowen Fld

20h 43m1 stop San Francisco

$1,257United Airlines

Sun, Jan 10 - Wed, Jan 27

1:55 pm - 5:50 amSUN Hailey Sun Valley-Friedman-BNE Brisbane

22h 55m2 stops Phoenix Sky Harbor Intl Los Angeles

1:10 pm - 12:06 pmBNE Brisbane-SUN Hailey Sun Valley-Friedman

39h 56m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,285American Airlines

Sun, Feb 21 - Thu, Mar 4

1:55 pm - 11:40 amSUN Hailey Sun Valley-Friedman-BNE Brisbane

28h 45m3 stops Phoenix Sky Harbor Intl Los Angeles Sydney Kingsford Smith

1:10 pm - 12:06 pmBNE Brisbane-SUN Hailey Sun Valley-Friedman

39h 56m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,317American Airlines

Sun, Feb 21 - Thu, Mar 4

Cheap last minute flights

Enter your travel dates to find the best prices.

2:14 pm - 6:55 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

24h 41m1 stop San Francisco

11:20 am - 2:03 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

19h 43m1 stop San Francisco

$1,529United Airlines

Wed, Sep 30 - Mon, Oct 5

2:14 pm - 6:55 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

24h 41m1 stop San Francisco

11:20 am - 7:29 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

25h 09m1 stop San Francisco

$1,529United Airlines

Wed, Sep 30 - Tue, Oct 6

6:44 pm - 6:50 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

20h 06m2 stops Salt Lake City Los Angeles

10:15 am - 10:34 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

29h 19m2 stops Los Angeles Seattle/Tacoma Intl

$1,534Delta

Wed, Sep 30 - Mon, Oct 5

10:34 am - 6:50 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

28h 16m2 stops Seattle/Tacoma Intl Los Angeles

10:15 am - 2:47 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

21h 32m1 stop Los Angeles

$1,534Delta

Wed, Sep 30 - Tue, Oct 6

2:44 pm - 7:00 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

24h 16m2 stops Denver Intl Los Angeles

11:20 am - 2:03 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

19h 43m1 stop San Francisco

$1,534United Airlines

Wed, Sep 30 - Mon, Oct 5

8:08 am - 7:00 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

30h 52m2 stops Chicago O'Hare Intl Los Angeles

11:20 am - 10:33 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

28h 13m2 stops San Francisco Denver Intl

$1,534United Airlines

Wed, Sep 30 - Tue, Oct 6

6:25 am - 7:20 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

32h 55m2 stops Denver Intl Vancouver Intl

10:20 am - 9:34 amSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

40h 14m2 stops Vancouver Intl Denver Intl

$1,541Air Canada

Wed, Sep 30 - Mon, Oct 5

6:50 pm - 6:55 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

20h 05m1 stop San Francisco

6:25 pm - 11:59 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

46h 34m2 stops Auckland Intl San Francisco

$1,552Air New Zealand

Wed, Sep 30 - Mon, Oct 5

6:47 pm - 7:05 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

20h 18m1 stop Los Angeles

9:50 pm - 11:00 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

41h 10m2 stops Brisbane Los Angeles

$1,560Multiple Airlines

Sat, Sep 26 - Mon, Sep 28

6:47 pm - 7:30 amBOI Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith

20h 43m1 stop Los Angeles

10:10 am - 10:57 pmSYD Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld

29h 47m1 stop Los Angeles

$1,563Multiple Airlines

Wed, Sep 30 - Mon, Oct 5

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Air New Zealand flights from Idaho to Australia

Our best Air New Zealand deals on Idaho to Australia flight tickets

Air New Zealand

Nov 8

BOI7:30 pmBoise Air Term. Gowen Fld

43h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 15

SYD9:55 amSydney Kingsford Smith

29h 38m

2 stops

BOI9:33 pmBoise Air Term. Gowen Fld

$1,147

Air New Zealand

Nov 7

BOI7:30 pmBoise Air Term. Gowen Fld

43h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 14

SYD11:50 amSydney Kingsford Smith

27h 43m

2 stops

BOI9:33 pmBoise Air Term. Gowen Fld

$1,195

Air New Zealand

Oct 22

BOI6:57 pmBoise Air Term. Gowen Fld

44h 38m

2 stops

SYD8:35 amSydney Kingsford Smith

Oct 29

SYD9:55 amSydney Kingsford Smith

28h 25m

2 stops

BOI9:20 pmBoise Air Term. Gowen Fld

$1,243

United Airlines flights from Idaho to Australia

Our best United Airlines deals on Idaho to Australia flight tickets

United Airlines

Nov 6

IDA10:35 amIdaho Falls Fanning Field

27h 55m

2 stops

BNE7:30 amBrisbane

Nov 13

BNE11:20 amBrisbane

26h 49m

2 stops

IDA9:09 pmIdaho Falls Fanning Field

$1,132

United Airlines

Nov 8

IDA2:35 pmIdaho Falls Fanning Field

29h 55m

3 stops

BNE1:30 pmBrisbane

Nov 15

BNE11:20 amBrisbane

21h 18m

2 stops

IDA3:38 pmIdaho Falls Fanning Field

$1,196

United Airlines

Nov 8

IDA5:30 pmIdaho Falls Fanning Field

45h 00m

2 stops

BNE7:30 amBrisbane

Nov 15

BNE11:20 amBrisbane

21h 18m

2 stops

IDA3:38 pmIdaho Falls Fanning Field

$1,236

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsBrisbane

IDA Idaho Falls Fanning Field - BNE Brisbane

IDABNE

Idaho Falls Fanning Field

Fri 11/6

10:35 am-7:30 am

2 stops27h 55m

Brisbane

Fri 11/13

11:20 am-9:09 pm

2 stops26h 49m

$1,132

BoiseSydney

BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith

BOISYD

Boise Air Term. Gowen Fld

Sun 11/8

7:30 pm-8:35 am

2 stops43h 05m

Sydney Kingsford Smith

Sun 11/15

9:55 am-9:33 pm

2 stops29h 38m

$1,147

Quickest round-trip

BoiseSydney

BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith

BOISYD

Boise Air Term. Gowen Fld

Sun 11/8

4:00 pm-8:30 am

1 stop22h 30m

Sydney Kingsford Smith

Sun 11/15

10:40 am-2:58 pm

1 stop22h 18m

$1,189

BoiseSydney

BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith

BOISYD

Boise Air Term. Gowen Fld

Sun 11/8

6:14 pm-9:00 am

2 stops20h 46m

Sydney Kingsford Smith

Sun 11/15

2:05 pm-10:42 pm

1 stop26h 37m

$1,190

BoiseSydney

BOI Boise Air Term. Gowen Fld - SYD Sydney Kingsford Smith

BOISYD

Boise Air Term. Gowen Fld

Sat 11/7

7:30 pm-8:35 am

2 stops43h 05m

Sydney Kingsford Smith

Sat 11/14

11:50 am-9:33 pm

2 stops27h 43m

$1,195

Idaho FallsBrisbane

IDA Idaho Falls Fanning Field - BNE Brisbane

IDABNE

Idaho Falls Fanning Field

Sun 11/8

2:35 pm-1:30 pm

3 stops29h 55m

Brisbane

Sun 11/15

11:20 am-3:38 pm

2 stops21h 18m

$1,196

Idaho FallsBrisbane

IDA Idaho Falls Fanning Field - BNE Brisbane

IDABNE

Idaho Falls Fanning Field

Sun 11/8

5:30 pm-7:30 am

2 stops45h 00m

Brisbane

Sun 11/15

11:20 am-3:38 pm

2 stops21h 18m

$1,236

BoiseBrisbane

BOI Boise Air Term. Gowen Fld - BNE Brisbane

BOIBNE

Boise Air Term. Gowen Fld

Sun 1/10

4:05 pm-9:00 am

2 stops47h 55m

Brisbane

Wed 1/27

11:20 am-3:03 pm

1 stop20h 43m

$1,257

HaileyBrisbane

SUN Hailey Sun Valley-Friedman - BNE Brisbane

SUNBNE

Hailey Sun Valley-Friedman

Sun 2/21

1:55 pm-5:50 am

2 stops22h 55m

Brisbane

Thu 3/4

1:10 pm-12:06 pm

2 stops39h 56m

$1,285

HaileyBrisbane

SUN Hailey Sun Valley-Friedman - BNE Brisbane

SUNBNE

Hailey Sun Valley-Friedman

Sun 2/21

1:55 pm-11:40 am

3 stops28h 45m

Brisbane

Thu 3/4

1:10 pm-12:06 pm

2 stops39h 56m

$1,317

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 March is, on average, the cheapest month to fly to Australia from Idaho, with most prices found around $1,076. If you aren’t able to travel during the month of March, then book flights to Australia from Idaho during August instead. Flights to Australia in August, while not as cheap as those in March, still average around $1,178.

Can stopping save me money on Idaho to Australia flights?

You could potentially save up to 2% 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

Best Price Found	$577
Fastest flight time	20h 05m
Direct flights	None

The best one-way flight to Australia from Idaho in the past 72 hours is $577. The best round-trip flight deal from Idaho to Australia found on momondo in the last 72 hours is $1,132.

The fastest flight from Idaho to Australia takes 20h 05m

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 September 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 10,238 reviews		Search United Airlines flights
American Airlines	PriceFrom $967	Free Cancellation	Rating 7.0 12,089 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.