The calculated distance (air line) between Yelahanka and Kānkānhalli is approximately 40 miles respectively 65 kilometers.
By car or train, the actual journey to Kānkānhalli is certainly longer, as only the direct route (as the crow flies) between Yelahanka and Kānkānhalli has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles