"See actual flight paths with flightpaths.com"
Weather, politics and local regulations can affect the choice of airspace and flight corridors. Flightpaths.com lets you see the real flight paths and compare passenger airlines and flight times simplified on an interactive map.
Flights from Singapore (SIN), Singapore to Kolkata (CCU), India illustrated on a map. Based on 6 recorded flights, the distance can vary between 1865 and 1922 miles.
India
Malaysia
Thailand
Over water
India
Malaysia
Thailand
Over water
You can also check the reverse route: Kolkata to Singapore