Nonstop flight route between Alton, Illinois, United States and Waterford, Ireland:
Departure Airport:

Arrival Airport:

Distance from ALN to WAT:
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- About this route
- ALN Airport Information
- WAT Airport Information
- Facts about ALN
- Facts about WAT
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to WAT
- List of Nearest Airports to WAT
- Map of Furthest Airports from WAT
- List of Furthest Airports from WAT
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Waterford Airport (WAT), Waterford, Ireland would travel a Great Circle distance of 3,892 miles (or 6,263 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 St. Louis Regional Airport and Waterford 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 St. Louis Regional Airport and Waterford Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | WAT / EIWF |
Airport Names: |
|
Location: | Waterford, Ireland |
GPS Coordinates: | 52°11'13"N by 7°5'12"W |
Area Served: | Waterford, Ireland |
Operator/Owner: | Waterford Regional Airport |
Airport Type: | Public |
Elevation: | 119 feet (36 meters) |
View all routes: | Routes from WAT |
More Information: | WAT Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Waterford Airport (WAT):
- Waterford Airport handled 8,000 passengers last year.
- In addition to being known as "Waterford Airport", another name for WAT is "Aerfort Phort Láirge".
- On 14 May 2007 Aer Arann announced that they would open up a base in Waterford Airport and they also announced services to Birmingham.
- 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.
- 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.
- On 13 March 2007 a €27.5 million upgrade of Waterford Airport was announced.
- Flybe has indicated that the services to Waterford will be in place until at least 2014.
- The closest airport to Waterford Airport (WAT) is Kilkenny Airport (KKY), which is located 33 miles (53 kilometers) NNW of WAT.
- Flybe announced a route to Manchester starting 22 May 2013, which was dropped by Aer Lingus Regional on 6 January.