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$692+ Cheap flights from Sydney (SYD) to Boise (BOI)

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
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Sydney to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$1,077
(Delta)

One-way from

$692
(Delta)

Popular in

July

Cheapest in

September

Average price

$1,140
From Sydney Kingsford Smith to Boise Air Term. Gowen Fld
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One-way flight from Sydney Kingsford Smith to Boise Air Term. Gowen Fld
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Sydney to Boise

Cheapest flights from Sydney to Boise
Explore the most affordable flight options available from Sydney to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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.
Sun 7/279:25 amSYD - BOI
1 stop29h 32mDelta
Sun 8/34:20 pmBOI - SYD
2 stops22h 15mDelta
Deal found 6/11$1,077
This Jetabroad deal was found by Cheapflights users on 6/11. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/277:05 amSYD - BOI
3 stops22h 50mMultiple Airlines
Sun 8/34:50 pmBOI - SYD
3 stops25h 30mMultiple Airlines
Deal found 6/11$1,819

Cheapflights Fare Finder

Customize your flight search to find flights from Sydney to Boise 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 June 12, 2025.
Use the filters below to find and compare flights from Sydney to Boise that are best for you.

Fly from

Sydney

Fly to

Boise

Route

Depart

Return

Price

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 7/27

9:25 am-8:20 pm

2 stops26h 55m

Boise Air Term. Gowen Fld

Sun 8/3

12:50 pm-6:35 am

2 stops25h 45m

$1,077

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 7/27

7:05 am-1:55 pm

3 stops22h 50m

Boise Air Term. Gowen Fld

Sun 8/3

4:50 pm-10:20 am

3 stops25h 30m

$1,819

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/16

9:25 am-3:03 pm

1 stop21h 38m

$692

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/16

7:25 pm-10:54 pm

3 stops43h 29m

$1,100

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 7/16

12:45 pm-10:54 pm

3 stops26h 09m

$1,463

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 11/9

12:10 pm-4:03 pm

1 stop21h 53m

$4,895

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Sydney to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise 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.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Boise

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

Currently, October is the cheapest month in which you can book a flight from Sydney to Boise (average of $314). Flying from Sydney to Boise in June is currently the most expensive (average of $395). 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 Boise by month

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

In terms of precipitation, rainfall in Boise 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 Boise when rainfall is around 0.2 in.

Temperature in Boise by month

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

If weather is an important factor for your trip to Boise, 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 Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated June 12, 2025.
Air Tahiti Nui
8.7
Very good
64 reviews

Food

7.8

Boarding

8.7

Comfort

8.1

Overall

8.7

Entertainment

7.3

Crew

9.0

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
64 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Food

7.8

Boarding

8.7

Comfort

8.1

Overall

8.7

Entertainment

7.3

Crew

9.0

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
7,950 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Food

7.8

Boarding

8.7

Comfort

8.1

Overall

8.7

Entertainment

7.3

Crew

9.0

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
8,790 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Food

7.8

Boarding

8.7

Comfort

8.1

Overall

8.7

Entertainment

7.3

Crew

9.0

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 Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Sydney to Boise round-trip?

    Delta, at $1,077, was found to be the cheapest airline from Sydney to Boise.. Delta is currently priced 14% below the average price you’ll pay for this route.

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

    $692 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Tahiti Nui and United Airlines, with prices starting from $1,100 and $4,895, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Boise 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 Boise?

    Currently, October is the cheapest month in which you can book a flight from Sydney to Boise (average of $314). Flying from Sydney to Boise in June is currently the most expensive (average of $395). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Nampa
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Ontario
McCall
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Top airline flying from Sydney to Boise

Discover the top airline that operate flights from Sydney to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,019Average$1,308FlexibilityNo cancel feeOn-time69%

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