Nonstop flight route between Guernsey, Channel Islands, United Kingdom and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between Guernsey Airport (GCI), Guernsey, Channel Islands, United Kingdom and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,263 miles (or 6,861 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 Guernsey Airport and Sidney-Richland Municipal 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 Guernsey Airport and Sidney-Richland Municipal 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 Guernsey Airport (GCI):

• Because of Guernsey Airport's relatively low elevation of 336 feet, planes can take off or land at Guernsey Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Flybe are unable to operate their Embraer 195 aircraft into Guernsey due to the low strength of the runway, and elected to operate the smaller de Havilland Dash 8s.
• The closest airport to Guernsey Airport (GCI) is Jersey Airport (JER), which is located 24 miles (39 kilometers) SE of GCI.
• A large number of single and twin-engined light and business aircraft are based at the airport.
• Guernsey Airport (GCI) currently has only 1 runway.
• Work started on a new terminal building in 2002, which became operational on 19 April 2004.
• In 1960 there were four grass runways, with lengths ranging from 2,040 ft to 3,060 ft.
• On 12 January 1999 a F-27 operating a cargo flight for Channel Express arriving from Luton crashed short of runway 27 after deploying full flap on approach.
• The proposal is to add runway safety areas, RESAs, extend the take-off section by 120 m, and displace the landing section to the west, the first of a two phase runway extension.
• The furthest airport from Guernsey Airport (GCI) is Dunedin International Airport (DUD), which is nearly antipodal to Guernsey Airport (meaning Guernsey Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,024 miles (19,350 kilometers) away in Dunedin, Otago, New Zealand.
• Guernsey Airport handled 886,396 passengers last year.

Facts about Sidney-Richland Municipal Airport (SDY):

• The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
• As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
• The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.