The calculated distance (air line) between Saarijärvi and Seinäjoki is approximately 77 miles respectively 124 kilometers.
By car or train, the actual journey to Seinäjoki is certainly longer, as only the direct route (as the crow flies) between Saarijärvi and Seinäjoki has been calculated here.
Air line (approximately)
124 kilometers
67 nautical miles