The calculated distance (air line) between Nong Phai and Khlong Luang is approximately 136 miles respectively 219 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Nong Phai and Khlong Luang has been calculated here.
Air line (approximately)
219 kilometers
118 nautical miles