Nonstop flight route between Denver, Colorado, United States and Ontario (near Los Angeles), California, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from DEN to ONT:
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- About this route
- DEN Airport Information
- ONT Airport Information
- Facts about DEN
- Facts about ONT
- Map of Nearest Airports to DEN
- List of Nearest Airports to DEN
- Map of Furthest Airports from DEN
- List of Furthest Airports from DEN
- Map of Nearest Airports to ONT
- List of Nearest Airports to ONT
- Map of Furthest Airports from ONT
- List of Furthest Airports from ONT
About this route:
A direct, nonstop flight between Denver International Airport (DEN), Denver, Colorado, United States and LA/Ontario International Airport (ONT), Ontario (near Los Angeles), California, United States would travel a Great Circle distance of 818 miles (or 1,316 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 relatively short distance between Denver International Airport and LA/Ontario International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | DEN / KDEN | 
| Airport Name: | Denver International Airport | 
| Location: | Denver, Colorado, United States | 
| GPS Coordinates: | 39°51'42"N by 104°40'23"W | 
| Area Served: | Denver, Front Range Megalopolis, Northern Colorado, Eastern Colorado | 
| Operator/Owner: | City & County of Denver Department of Aviation | 
| Airport Type: | Public | 
| Elevation: | 5431 feet (1,655 meters) | 
| # of Runways: | 6 | 
| View all routes: | Routes from DEN | 
| More Information: | DEN Maps & Info | 
Arrival 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 | 
Facts about Denver International Airport (DEN):
- The furthest airport from Denver International Airport (DEN) is Sir Gaëtan Duval Airport (RRG), which is located 10,877 miles (17,505 kilometers) away in Rodrigues Island, Mauritius.
- DIA has Wi-Fi access throughout the airport.
- Mustang, by El Paso born artist Luis Jiménez, was one of the earliest public art commissions for Denver International Airport in 1993.
- Both during construction and after its opening Denver International Airport has set aside a portion of its construction and operation budgets for art.
- Delays caused by poor planning and repeated design changes due to changing requirements from United Airlines caused Mayor Webb to push opening day back, first to December 1993, then to March 1994.
- Denver International Airport (DEN) has 6 runways.
- Denver International Airport handled 52,556,359 passengers last year.
- Denver has traditionally been home to one of the busier airports in the nation because of its location.
- The closest airport to Denver International Airport (DEN) is Centennial Airport (APA), which is located 22 miles (36 kilometers) SSW of DEN.
- On September 25, 1994, the airport hosted a fly-in that drew several hundred general aviation aircraft, providing pilots with a unique opportunity to operate in and out of the new airport, and to wander around on foot looking at the ground-side facilities—including the baggage system, which was still under testing.
- Because of Denver International Airport's high elevation of 5,431 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DEN. Combined with a high temperature, this could make DEN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about LA/Ontario International Airport (ONT):
- In 1941, the city bought 470 acres around the airport and approved construction of new runways, which were completed by 1942, with funds from the Works Progress Administration.
- 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.
- 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.
- 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.
- Ontario is a major southwestern gateway hub for UPS.
- LA/Ontario International Airport (ONT) has 2 runways.
- The airport is about 38 miles east of downtown Los Angeles, 18 miles west of downtown San Bernardino and 14 miles northwest of downtown Riverside.
- In 2013, LAWA offered to return the airport to local control for a purchase price of $474mm, which was rejected.




