Cheap flights from Newcastle to Idaho from $3,869

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
NTL — BOI
12 okt. — 19 okt.1
1 adult
1 adult, Economy

Cheap flight deals from Newcastle to Idaho

Keep the following information in mind while searching for Newcastle to Idaho flight deals. Data was last updated 12 september 2025.

Round-trip from

$3,869

Popular in

July

Cheapest in

August

Average price

$1,592
Qantas Airways
  • Qantas Airways
  • 30/10-3/11
  • 4 total stops
  • 66h 29m total
  • Newcastle to Idaho
Highest demand for flights based on searches. 0% potential increase in price ($20 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($60 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Newcastle to Idaho

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

to. 30/1016:30NTL - BOI
2 stops23h 32mQantas Airways
ma. 3/1108:08BOI - NTL
2 stops42h 57mQantas Airways
Deal found 9/9$3,869

Cheapflights Fare Finder

 
Customise your flight search to find flights from Newcastle 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 647,157 searches. Data last updated 12 september 2025.
Use the filters below to find and compare flights from Newcastle to Idaho that are best for you.

Fly from

Newcastle

Fly to

Idaho

Route

Depart

Return

Price

NewcastleBoise

NTL - BOI

NTLBOI

Newcastle Williamtown

to. 30/10

16:30-23:02

2 stops23h 32m

Boise Air Term. Gowen Fld

ma. 3/11

08:08-21:05

2 stops42h 57m

$3,869

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Best time to book a flight from Newcastle to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Newcastle with our price prediction graph.
Estimated return 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 Newcastle 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 Newcastle 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 Newcastle to Idaho?

    Located just 15.6 km from the city centre, Newcastle Williamtown (NTL) is the airport most travellers will use when flying to Idaho from Newcastle.

  • How long is the flight from Newcastle to Idaho?

    There are many flights that can get you from Newcastle to Idaho in 23h 32m. Fly via Qantas Airways to get the fastest option. The distance between Newcastle and Idaho is about 12579 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Newcastle 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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Can Cheapflights find flights from Newcastle to Idaho with no change fees?

Yes, we can. To see specific flights from Newcastle to Idaho with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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