Find flights
When to book
FAQs

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
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($60 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Newcastle to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Los Angeles flights
Sydney to John F Kennedy Intl flights
Sydney to Dallas/Fort Worth flights
Sydney to LaGuardia flights
Sydney to San Francisco flights
Sydney to Honolulu flights
Sydney to Newark flights
Sydney to Ontario flights
Sydney to Hobby flights
Sydney to George Bush Intcntl flights
Sydney to Las Vegas flights
Sydney to Seattle flights
Sydney to Kailua-Kona flights
Sydney to Boston flights
Sydney to Orlando flights
Sydney to Long Beach flights
Sydney to Miami flights
Sydney to Denver flights
Sydney to Atlanta flights
Sydney to Sky Harbor Intl flights
Sydney to O'Hare Intl flights
Sydney to Dulles Intl flights
Sydney to Santa Ana flights
Sydney to Portland flights
Sydney to San Jose flights
Sydney to Reagan-National flights
Sydney to Sacramento flights
Sydney to Oakland flights
Sydney to Baltimore flights
Sydney to Midway flights
Coolangatta to Los Angeles flights
Sydney to Jacksonville flights
Sydney to Columbus flights
Sydney to San Diego flights
Sydney to Tampa flights
Sydney to Salt Lake City flights
Sydney to Pittsburgh flights
Sydney to El Paso flights
Sydney to Philadelphia flights
Sydney to Cleveland flights
Sydney to Burbank flights
Sydney to Charlotte flights
Sydney to Nashville flights
Sydney to Detroit flights
Sydney to St. Louis flights
Coolangatta to Dallas/Fort Worth flights
Sydney to Kahului flights
Sydney to Indianapolis 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 Newcastle to Idaho?

Deals for Newcastle to Idaho flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Idaho from Newcastle.

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.

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

Yes! Start tracking prices for Newcastle 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.