Nonstop flight route between Shannon (County Clare), Ireland and St. Louis, Missouri, United States:

About this route:

A direct, nonstop flight between Shannon Airport (SNN), Shannon (County Clare), Ireland and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 3,826 miles (or 6,157 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 Shannon Airport and Lambert–St. Louis International 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 Shannon Airport and Lambert–St. Louis International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Shannon Airport (SNN):

• Shannon Airport (SNN) currently has only 1 runway.
• Shannon Airport handled 1,400,032 passengers last year.
• Aer Arann launched services to 4 UK destinations in 2010 under the Aer Lingus Regional Banner.
• In 1966, Aer Lingus began service between Shannon and Chicago, with a stop in Montréal, Canada.
• In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
• The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
• Delta Air Lines operated to Atlanta until 2007.
• The 1960s proved to be difficult for Shannon Airport.
• 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.
• In 1947, the "Customs Free Airport Act" established Shannon as the world's first duty-free airport.
• 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.

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

• TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
• 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.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• Named for Albert Bond Lambert, an Olympic medalist and prominent St.
• American Airline's merger closed in April 2001, and the last TWA flight was flown on December 1, 2001.
• The airport grew from a balloon launching base, Kinloch Field, part of the 1890s Kinloch Park suburban development.
• In 1925, the airport became home to Naval Air Station St.
• 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.
• In June 1920, the Aero Club of St.
• Lambert's passenger traffic slowly rebounded from American Airlines' cuts of November 2003, increasing from a low of 13.4 million passengers enplaned in 2004, to 15.4 million by 2007, and increase of almost 15 percent.
• 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.
• By 2013, flights at the airport had continued their steady growth, with 64 non-stop cities served, including 6 international destinations, St.
• 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.