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Cheap flights from Sydney to Idaho

SYD — BOI
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Popular in

July

Cheapest in

October
Highest demand for flights based on searches. 2% potential increase in price ($73 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($61 potential savings vs. average return price).
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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 18 September 2025.
See what other customers who have flown with United Airlines from Sydney to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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?

    Most people fly from Sydney Kingsford Smith (SYD) if they book a flight from Sydney to Idaho. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • 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 holiday 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.

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Alternative routes for Sydney to Idaho

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Top airline flying from Sydney to Idaho

Discover the top airline that operate flights from Sydney to Idaho. 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 647,157 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,191Average$1,820FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Idaho?

Cheapflights makes it easy to find Sydney to Idaho flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Idaho?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Idaho by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to Idaho with no change fees?

Need flexible booking options for your flight to Idaho from Sydney? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Idaho become cheaper?

Yes! Start tracking prices for Sydney to Idaho flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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