Nonstop flight route between Watertown, South Dakota, United States and Parnaiba, Piaui, Brazil:

About this route:

A direct, nonstop flight between Watertown Regional Airport (ATY), Watertown, South Dakota, United States and Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB), Parnaiba, Piaui, Brazil would travel a Great Circle distance of 4,736 miles (or 7,622 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 Watertown Regional Airport and Parnaíba–Prefeito Dr. João Silva Filho 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 Watertown Regional Airport and Parnaíba–Prefeito Dr. João Silva Filho 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 Watertown Regional Airport (ATY):

• B-17 Flying Fortress and B-24 Liberator units underwent advanced training before going overseas.
• Watertown Regional Airport (ATY) has 2 runways.
• The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
• The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.
• During World War II the airfield was used by the United States Army Air Forces.
• In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".

Facts about Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB):

• The furthest airport from Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) is Frans Kaisiepo Airport (BIK), which is nearly antipodal to Parnaíba–Prefeito Dr. João Silva Filho International Airport (meaning Parnaíba–Prefeito Dr. João Silva Filho International Airport is almost on the exact opposite side of the Earth from Frans Kaisiepo Airport), and is located 12,118 miles (19,501 kilometers) away in Biak, Indonesia.
• Because of Parnaíba–Prefeito Dr. João Silva Filho International Airport's relatively low elevation of 23 feet, planes can take off or land at Parnaíba–Prefeito Dr. João Silva Filho 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.
• Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) currently has only 1 runway.
• The airport is located on a privileged area with great touristic potential, near the municipalities of Camocim e Jericoacoara, in Ceará, the delta of river Parnaíba, in Piauí, and Lençóis Maranhenses National Park in Maranhão.
• Parnaíba–Prefeito Dr. João Silva Filho International Airport handled 2,922 passengers last year.
• Parnaíba–Prefeito Dr.
• The closest airport to Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) is Barreirinhas Airport (BRB), which is located 75 miles (120 kilometers) W of PHB.
• In addition to being known as "Parnaíba–Prefeito Dr. João Silva Filho International Airport", another name for PHB is "Aeroporto Internacional de Parnaíba–Prefeito Dr. João Silva Filho".