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Idaho

$1,113+ Cheap flights from Australia to Idaho

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
1 adult, Economy
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Cheap flight deals from Australia to Idaho

Cheapest flights from Australia to Idaho
Explore the most affordable flight options available from Australia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 5, 2026.

This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:10 am
SYD
-
BOI
2 stops23h 59m
American Airlines
Mon 6/11:59 pm
BOI
-
SYD
2 stops25h 06m
American Airlines
Deal found 5/3$1,113
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:15 am
SYD
-
BOI
1 stop29h 43m
Delta
Mon 6/18:45 am
BOI
-
SYD
2 stops30h 05m
Delta
Deal found 5/3$1,126
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:30 am
SYD
-
BOI
2 stops29h 16m
United Airlines
Thu 10/87:05 pm
BOI
-
SYD
1 stop19h 50m
United Airlines
Deal found 5/1$1,674
This BYOjet deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/198:45 pm
SYD
-
BOI
2 stops32h 02m
Multiple Airlines
Fri 6/266:23 am
BOI
-
SYD
2 stops20h 27m
Multiple Airlines
Deal found 5/5$1,688
This Jettzy deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:35 pm
BNE
-
BOI
1 stop18h 10m
Multiple Airlines
Fri 12/46:51 pm
BOI
-
BNE
1 stop17h 59m
Multiple Airlines
Deal found 5/1$1,757
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:35 pm
BNE
-
BOI
2 stops30h 45m
American Airlines
Fri 12/46:39 am
BOI
-
BNE
2 stops30h 11m
American Airlines
Deal found 5/1$1,771
This Qatar Airways deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:45 pm
MEL
-
GEG
2 stops42h 14m
Qatar Airways
Sun 8/167:23 am
GEG
-
MEL
2 stops40h 27m
Qatar Airways
Deal found 4/30$1,774
This Aunt Betty deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:00 pm
BNE
-
BOI
3 stops33h 19m
Multiple Airlines
Fri 6/266:23 am
BOI
-
BNE
3 stops25h 02m
Multiple Airlines
Deal found 5/4$1,861
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am
SYD
-
BOI
1 stop21h 46m
Delta
Thu 10/87:15 am
BOI
-
SYD
1 stop31h 35m
Delta
Deal found 5/1$1,882
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:50 pm
SYD
-
BOI
2 stops35h 37m
American Airlines
Sun 8/212:14 pm
BOI
-
SYD
1 stop26h 41m
American Airlines
Deal found 4/30$1,895
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:35 pm
MEL
-
GEG
1 stop24h 07m
American Airlines
Sun 8/1612:53 pm
GEG
-
MEL
2 stops48h 52m
American Airlines
Deal found 4/30$1,924
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:55 am
MEL
-
GEG
1 stop27h 21m
United Airlines
Sun 8/1612:57 pm
GEG
-
MEL
1 stop26h 18m
United Airlines
Deal found 4/30$1,957

Find flight deals from Australia to Idaho

Keep the following information in mind while searching for Australia to Idaho flight deals. Data was last updated May 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,113
(American Airlines)
Provider with most accurate pricing for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flights.
Search Deals
From Australia to Idaho
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 5, 2026.
Use the filters below to find and compare flights from Australia to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 5/25

9:10 am-5:09 pm

2 stops23h 59m

Boise Air Term. Gowen Fld

Mon 6/1

1:59 pm-7:05 am

2 stops25h 06m

$1,113

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 5/25

9:15 am-10:58 pm

1 stop29h 43m

Boise Air Term. Gowen Fld

Mon 6/1

8:45 am-6:50 am

2 stops30h 05m

$1,126

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Fri 9/18

9:30 am-10:46 pm

2 stops29h 16m

Boise Air Term. Gowen Fld

Thu 10/8

7:05 pm-7:55 am

1 stop19h 50m

$1,674
Quickest round-trip

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Mon 8/3

8:35 pm-10:45 pm

1 stop18h 10m

Boise Air Term. Gowen Fld

Fri 12/4

6:51 pm-5:50 am

1 stop17h 59m

$1,757

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 8/12

10:45 pm-11:59 pm

2 stops42h 14m

Spokane

Sun 8/16

7:23 am-4:50 pm

2 stops40h 27m

$1,774

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Mon 8/3

8:35 pm-11:20 am

2 stops30h 45m

Boise Air Term. Gowen Fld

Fri 12/4

1:25 pm-6:30 am

1 stop24h 05m

$1,778

BrisbaneBoise

BNE - BOI

BNEBOI

Brisbane

Fri 6/19

4:00 pm-9:19 am

3 stops33h 19m

Boise Air Term. Gowen Fld

Fri 6/26

6:23 am-11:25 pm

3 stops25h 02m

$1,861

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 8/12

1:35 pm-8:42 pm

1 stop24h 07m

Spokane

Sun 8/16

12:53 pm-6:45 am

2 stops48h 52m

$1,924

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Wed 8/12

10:55 am-9:16 pm

1 stop27h 21m

Spokane

Sun 8/16

12:57 pm-8:15 am

1 stop26h 18m

$1,957

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/29

10:20 am-9:29 pm

2 stops27h 09m

Boise Air Term. Gowen Fld

Sun 8/2

2:41 pm-6:55 am

2 stops24h 14m

$2,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Australia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Australia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Australia to Idaho
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Australia to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Australia to Idaho?

    Airlines like American Airlines, Delta, and United Airlines fly from Australia to Idaho in about 23h 59m. The time it takes to get you to your destination can typically vary by up to 5h 44m. The distance from Australia to Idaho is about 7894 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Australia to Idaho that include hotel bookings?

    Yes. In addition to deals on Australia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Australia to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Idaho.

  • Can I find deals for business class flights from Australia to Idaho?

    Yes. Cheapflights offers flight deals from Australia to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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