Nonstop flight route between Ruislip, England, United Kingdom and Challis, Idaho, United States:

About this route:

A direct, nonstop flight between RAF Northolt (NHT), Ruislip, England, United Kingdom and Challis Airport (CHL), Challis, Idaho, United States would travel a Great Circle distance of 4,717 miles (or 7,591 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between RAF Northolt and Challis Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between RAF Northolt and Challis Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about RAF Northolt (NHT):

• In August 1996, a Spanish Learjet operated by Mar Aviation overshot runway 25 and collided with a van heading eastward on the A40 Western Avenue.
• The furthest airport from RAF Northolt (NHT) is Chatham Islands (CHT), which is located 11,871 miles (19,105 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The outbreak of the First World War necessitated a new aerodrome for the Royal Flying Corps.
• The overnight base of the London Air Ambulance moved to RAF Northolt from Denham Aerodrome in February 2013.
• The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
• During the construction of Heathrow Airport, Northolt was used for commercial civil flights, becoming the busiest airport in Europe for a time and a major base for British European Airways.
• After the Battle of Britain, the station remained a base for daytime fighter operations, with No.

Facts about Challis Airport (CHL):

• Challis Airport (CHL) currently has only 1 runway.
• The closest airport to Challis Airport (CHL) is Lemhi County Airport (SMN), which is located 45 miles (72 kilometers) NNE of CHL.
• Because of Challis Airport's high elevation of 5,072 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CHL. Combined with a high temperature, this could make CHL a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Challis Airport (CHL) is Pierrefonds Airport (ZSE), which is located 10,728 miles (17,265 kilometers) away in Saint-Pierre, Réunion.
• In addition to being known as "Challis Airport", another name for CHL is "LLJ".