Nonstop flight route between Ontario (near Los Angeles), California, United States and Sembach, Germany:
Departure Airport:

Arrival Airport:

Distance from ONT to SEX:
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- About this route
- ONT Airport Information
- SEX Airport Information
- Facts about ONT
- Facts about SEX
- 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 SEX
- List of Nearest Airports to SEX
- Map of Furthest Airports from SEX
- List of Furthest Airports from SEX
About this route:
A direct, nonstop flight between LA/Ontario International Airport (ONT), Ontario (near Los Angeles), California, United States and Sembach KaserneSembach Air Base (SEX), Sembach, Germany would travel a Great Circle distance of 5,766 miles (or 9,280 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 Sembach KaserneSembach Air Base, 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 Sembach KaserneSembach Air Base. 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: | SEX / ETAS |
Airport Name: | Sembach KaserneSembach Air Base |
Location: | Sembach, Germany |
GPS Coordinates: | 49°31'41"N by 7°51'56"E |
Operator/Owner: | United States with authority from Germany |
View all routes: | Routes from SEX |
More Information: | SEX Maps & Info |
Facts about LA/Ontario International Airport (ONT):
- In 1981, a second east-west runway, 26L/8R, was built, necessitating the removal of the old NE-SW runway 4/22.
- 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 (ONT) has 2 runways.
- In 1923, a landing field was established east of Central Avenue west of the current airport) on land leased from the Union Pacific Railroad.
- 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 has three terminals.
- LA/Ontario International Airport handled 4,812,006 passengers last year.
- Thanks to Ontario's long runways, it is often an alternate landing site for large aircraft destined for LAX.
- 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.
Facts about Sembach KaserneSembach Air Base (SEX):
- On 30 November 1954, the 30th TRS received the first Martin RB-57A Canberra, to replace its World War II vintage RB-26 Invaders.
- In 1950, as a result of the Cold War threat of the Soviet Union, the United States was rapidly expanding its air forces, announcing an increase in the number of combat wings from 48 in 1950 to 95 by June 1952.
- The furthest airport from Sembach KaserneSembach Air Base (SEX) is Chatham Islands (CHT), which is located 11,992 miles (19,299 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The American flag first flew at Sembach Air Base on 8 July 1953.
- Another reason for the move to France was the unsuitability of Sembach's runway, which was barely adequate for the RF-84, but absolutely unsuitable for the higher performance RF-101 aircraft
- The closest airport to Sembach KaserneSembach Air Base (SEX) is Ramstein Air Base (RMS), which is located only 13 miles (21 kilometers) WSW of SEX.
- As part of the general withdrawal of French occupation forces from the left bank of the Rhine in 1930, the French abandoned the airfield on June 15, 1930.