Nonstop flight route between Waterford, Ireland and Salmon, Idaho, United States:

About this route:

A direct, nonstop flight between Waterford Airport (WAT), Waterford, Ireland and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 4,437 miles (or 7,141 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 Waterford Airport and Lemhi County 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 Waterford Airport and Lemhi County 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 Waterford Airport (WAT):

• Waterford Airport handled 8,000 passengers last year.
• The furthest airport from Waterford Airport (WAT) is Ryan's Creek Aerodrome (SZS), which is nearly antipodal to Waterford Airport (meaning Waterford Airport is almost on the exact opposite side of the Earth from Ryan's Creek Aerodrome), and is located 12,013 miles (19,333 kilometers) away in Stewart Island, New Zealand.
• In addition to being known as "Waterford Airport", another name for WAT is "Aerfort Phort Láirge".
• Because of Waterford Airport's relatively low elevation of 119 feet, planes can take off or land at Waterford 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.
• On 13 March 2007 a €27.5 million upgrade of Waterford Airport was announced.
• The airport is on the R708 road which can be accessed from the R710 outer ring road in Waterford.
• On 14 March 2012, Aer Arann transferred all of its Waterford routes into the Aer Lingus Regional brand effective from 25 March 2012.
• On 14 May 2007 Aer Arann announced that they would open up a base in Waterford Airport and they also announced services to Birmingham.
• The closest airport to Waterford Airport (WAT) is Kilkenny Airport (KKY), which is located 33 miles (53 kilometers) NNW of WAT.

Facts about Lemhi County Airport (SMN):

• The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
• Lemhi County Airport (SMN) currently has only 1 runway.
• The furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.
• Because of Lemhi County Airport's high elevation of 4,043 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SMN. Combined with a high temperature, this could make SMN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.