Nonstop flight route between Ontario (near Los Angeles), California, United States and Shannon (County Clare), Ireland:
Departure Airport:

Arrival Airport:

Distance from ONT to SNN:
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- About this route
- ONT Airport Information
- SNN Airport Information
- Facts about ONT
- Facts about SNN
- Map of Nearest Airports to ONT
- List of Nearest Airports to ONT
- Map of Furthest Airports from ONT
- List of Furthest Airports from ONT
- 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 LA/Ontario International Airport (ONT), Ontario (near Los Angeles), California, United States and Shannon Airport (SNN), Shannon (County Clare), Ireland would travel a Great Circle distance of 5,075 miles (or 8,168 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 LA/Ontario International Airport 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 LA/Ontario International Airport 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: | ONT / KONT |
Airport Name: | LA/Ontario International Airport |
Location: | Ontario (near Los Angeles), California, United States |
GPS Coordinates: | 34°3'21"N by 117°36'3"W |
Area Served: | Ontario, California / Inland Empire, California |
Operator/Owner: | Los Angeles World Airports |
Airport Type: | Public |
Elevation: | 944 feet (288 meters) |
# of Runways: | 2 |
View all routes: | Routes from ONT |
More Information: | ONT 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 LA/Ontario International Airport (ONT):
- Because of LA/Ontario International Airport's relatively low elevation of 944 feet, planes can take off or land at LA/Ontario International 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.
- LA/Ontario International Airport has three terminals.
- The closest airport to LA/Ontario International Airport (ONT) is Chino Airport (CNO), which is located only 6 miles (10 kilometers) SSW of ONT.
- LA/Ontario International Airport handled 4,812,006 passengers last year.
- The airport covers 1,700 acres and has two runways.
- The furthest airport from LA/Ontario International Airport (ONT) is Pierrefonds Airport (ZSE), which is located 11,460 miles (18,443 kilometers) away in Saint-Pierre, Réunion.
- LA/Ontario International Airport (ONT) has 2 runways.
Facts about Shannon Airport (SNN):
- With the demise of the Soviet Union in the early 1990s, Aeroflot began to suffer, which was a big loss to the airport.
- The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
- Shannon Airport handled 1,400,032 passengers last year.
- 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.
- 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.
- Shannon Airport (SNN) currently has only 1 runway.
- In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
- In 1958, the Irish airline Aer Lingus began transatlantic service to the United States, using Lockheed Super Constellations for thrice-weekly service to New York City and Boston.
- CityJet launched a twice-daily route to Paris Charles de Gaulle Airport in 2008 when Aer Lingus closed its London Heathrow flights.
- In March 2013, the new company appointed Neil Pakey as its first CEO.
- 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.