Nonstop flight route between Shannon (County Clare), Ireland and Portland, Maine, United States:

About this route:

A direct, nonstop flight between Shannon Airport (SNN), Shannon (County Clare), Ireland and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 2,807 miles (or 4,517 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 Shannon Airport and Portland International Jetport, 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 Shannon Airport and Portland International Jetport. 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 Shannon Airport (SNN):

• The furthest airport from Shannon Airport (SNN) is Ryan's Creek Aerodrome (SZS), which is nearly antipodal to Shannon Airport (meaning Shannon Airport is almost on the exact opposite side of the Earth from Ryan's Creek Aerodrome), and is located 12,015 miles (19,336 kilometers) away in Stewart Island, New Zealand.
• Shannon Airport handled 1,400,032 passengers last year.
• The number of international carriers rose sharply in succeeding years as Shannon became well known as the gateway between Europe and the Americas.
• In 1990, the US-Irish bilateral agreement was changed to allow Irish airlines to serve Los Angeles and additional US airlines to serve Dublin via Shannon.
• The 1980s saw a number of new airlines arrive at Shannon.
• The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
• In 1969, it was announced that a new government agency, Aer Rianta, would be given responsibility for Shannon Airport.
• Shannon Airport (SNN) currently has only 1 runway.
• In December 2012, it was announced that Shannon Airport would separate from the Dublin Airport Authority, who still own Dublin and Cork airports.
• In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
• Because of Shannon Airport's relatively low elevation of 46 feet, planes can take off or land at Shannon 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.

Facts about Portland International Jetport (PWM):

• Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
• In 1982 PWM got its first nonstop beyond New York, when Delta tried a 727 to Cincinnati for a year or so.
• Jet flights began in 1968, and for the first time Portland got a nonstop beyond Boston when Northeast DC-9s flew to La Guardia.
• Portland International Jetport (PWM) has 2 runways.
• In 1995 a terminal building improvement project was undertaken to add two-second-level boarding gates, as well as additional space for ticketing, operations, departure lounge, concessions, and an international customs facility.
• The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
• Some service began to return as the industry's economics improved in 2005 and 2006.