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

Arrival Airport:

Distance from PWM to SNN:
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- About this route
- PWM Airport Information
- SNN Airport Information
- Facts about PWM
- Facts about SNN
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
- Map of Nearest Airports to SNN
- List of Nearest Airports to SNN
- Map of Furthest Airports from SNN
- List of Furthest Airports from SNN
About this route:
A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Shannon Airport (SNN), Shannon (County Clare), Ireland 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 Portland International Jetport and Shannon 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 Portland International Jetport and Shannon Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SNN / EINN |
Airport Names: |
|
Location: | Shannon (County Clare), Ireland |
GPS Coordinates: | 52°42'6"N by 8°55'28"W |
Area Served: | Limerick City, Ireland |
Operator/Owner: | Government of Ireland |
Airport Type: | Commercial |
Elevation: | 46 feet (14 meters) |
# of Runways: | 1 |
View all routes: | Routes from SNN |
More Information: | SNN Maps & Info |
Facts about Portland International Jetport (PWM):
- 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.
- 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.
- 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.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- 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.
- In 1980 the passenger terminal expanded to the east with the addition of two baggage carousels.
- After Independence Air went bankrupt Portland had no low-cost carrier, causing fares to go up, and passenger numbers to decline.
Facts about Shannon Airport (SNN):
- Shannon began to rebound in the late 1990s with the success of the Irish economy, the improving situation in Northern Ireland, and an influx of American tourists.
- Shannon Airport (SNN) currently has only 1 runway.
- The number of international carriers rose sharply in succeeding years as Shannon became well known as the gateway between Europe and the Americas.
- In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
- Shannon Airport handled 1,400,032 passengers last year.
- The first passengers through the newly autonomous airport arrived on the Aer Lingus EI-110 flight from JFK at 5:08 am on 1 January 2013.
- In the late 1930s, transatlantic air traffic was dominated by flying boats, and a flying boat terminal was located at Foynes on the south side of the Shannon Estuary.
- CityJet launched a twice-daily route to Paris Charles de Gaulle Airport in 2008 when Aer Lingus closed its London Heathrow flights.
- 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.
- 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.
- In November 2013, Aer Lingus announced a new twice-weekly service from Shannon to Malaga.
- The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.