Nonstop flight route between Ontario (near Los Angeles), California, United States and St. Louis, Missouri, United States:

About this route:

A direct, nonstop flight between LA/Ontario International Airport (ONT), Ontario (near Los Angeles), California, United States and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 1,543 miles (or 2,483 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 LA/Ontario International Airport and Lambert–St. Louis International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about LA/Ontario International Airport (ONT):

• In 1946, the Ontario Municipal Airport was renamed the "Ontario International Airport" because of the transpacific cargo flights originating from the facility.
• 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.
• 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.
• 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 handled 4,812,006 passengers last year.
• 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 (ONT) has 2 runways.
• ONT currently has more than 64 daily departures and arrivals.
• Remote parking is located on the east end of the airport.

Facts about Lambert–St. Louis International Airport (STL):

• Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
• In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
• The September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
• On October 22, 2012, a Virgin Atlantic Airbus A340 landed at Lambert carrying VA Executives, including Richard Branson to discuss and explore the likelihood of a St Louis Route.
• Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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.
• TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• The April 1957 Official Airline Guide shows TWA with 44 weekday departures.
• The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
• Lambert again grew in importance for TWA after the airline declared bankruptcy in 1993 and moved its headquarters to St.
• The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
• However, TWA faced increasing problems as overall airline demand softened in response to a softening overall economy.