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$804+ Cheap flights from Sydney (SYD) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Sydney to Idaho

Keep the following information in mind while searching for Sydney to Idaho flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,380
(Kiwi.com)

One-way from

$804
(United Airlines)

Popular in

December

Cheapest in

July

Average price

$1,529
Provider with most accurate pricing for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flights.
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From Sydney Kingsford Smith to Idaho
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One-way flight from Sydney Kingsford Smith to Idaho
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Highest demand for flights based on searches. 16% potential increase in price ($253 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Sydney to Idaho

Cheapest flights from Sydney to Idaho
Explore the most affordable flight options available from Sydney to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/104:20 pmSYD - BOI
2 stops45h 28mMultiple Airlines
Thu 4/178:08 amBOI - SYD
1 stop30h 27mMultiple Airlines
Deal found 2/21$1,380
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 4/139:30 amSYD - BOI
2 stops40h 17mUnited Airlines
Sat 5/175:25 pmBOI - SYD
2 stops45h 35mUnited Airlines
Deal found 2/20$1,483
This Delta deal was found by Cheapflights users on 2/20. 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.
Thu 4/109:25 amSYD - BOI
1 stop29h 24mDelta
Thu 4/177:15 amBOI - SYD
1 stop31h 20mDelta
Deal found 2/20$1,616
This Aunt Betty deal was found by Cheapflights users on 2/20. 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.
Sun 4/139:20 amSYD - BOI
2 stops28h 02mAir Canada
Sat 5/176:35 amBOI - SYD
3 stops32h 45mAir Canada
Deal found 2/20$2,655
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1311:50 amSYD - BOI
3 stops41h 30mLATAM Airlines
Thu 4/172:15 pmBOI - SYD
3 stops51h 20mLATAM Airlines
Deal found 2/20$3,256

Find flights from Sydney to Idaho within your budget

Customize your flight search to find flights from Sydney 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 February 22, 2025.

Fly from

Sydney

Fly to

Idaho

Route

Depart

Return

Price

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 4/10

4:20 pm-9:48 pm

2 stops45h 28m

Boise Air Term. Gowen Fld

Thu 4/17

8:08 am-6:35 am

1 stop30h 27m

$1,380

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 4/13

9:30 am-9:47 am

2 stops40h 17m

Boise Air Term. Gowen Fld

Sat 5/17

5:25 pm-7:00 am

2 stops45h 35m

$1,483

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 4/10

9:25 am-10:49 pm

1 stop29h 24m

Boise Air Term. Gowen Fld

Thu 4/17

7:15 am-6:35 am

1 stop31h 20m

$1,616

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 4/13

9:20 am-9:22 pm

2 stops28h 02m

Boise Air Term. Gowen Fld

Sat 5/17

6:35 am-7:20 am

3 stops32h 45m

$2,655

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 4/13

11:50 am-1:20 pm

3 stops41h 30m

Boise Air Term. Gowen Fld

Thu 4/17

2:15 pm-9:35 am

3 stops51h 20m

$3,256

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/16

10:20 am-11:56 am

2 stops41h 36m

$804

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 4/13

8:10 am-9:08 am

3 stops40h 58m

$844

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 4/13

9:25 am-10:49 pm

1 stop29h 24m

$977

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/16

7:25 pm-10:59 pm

3 stops43h 34m

$1,044

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 8/2

11:50 am-12:31 pm

3 stops40h 41m

$1,649

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Best time to book a flight from Sydney to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Sydney 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.

Travel insights for flights from Sydney to Idaho

Get recent, data-driven insights about flights from Sydney to Idaho including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Sydney to Idaho?

Currently, October is the cheapest month in which you can book a flight from Sydney to Idaho (average of $314). Flying from Sydney to Idaho in June is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated February 22, 2025.
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Delta
8.0
Very good
8,212 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

LATAM Airlines
7.5
Good
1,793 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

United Airlines
7.4
Good
8,759 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Canada
7.0
Good
8,756 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Entertainment

7.2

Crew

9.1

Boarding

8.7

Overall

8.7

Comfort

8.0

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

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

  • What airport do you fly from for flights from Sydney to Idaho?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith (SYD) is the airport most travelers will use when flying to Idaho from Sydney.

  • What are the cheapest airlines to fly from Sydney to Idaho one-way?

    The cheapest airlines for a one-way flight from Sydney to Idaho are United Airlines ($804), Delta ($977), and Air Tahiti Nui ($1,044).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney 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.

  • What is the cheapest month to book a flight from Sydney to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Sydney to Idaho (average of $314). Flying from Sydney to Idaho in June is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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