The calculated distance (air line) between Saalfelden am Steinernen Meer and Feldkirch is approximately 153 miles respectively 246 kilometers.
By car or train, the actual journey to Feldkirch is certainly longer, as only the direct route (as the crow flies) between Saalfelden am Steinernen Meer and Feldkirch has been calculated here.
Air line (approximately)
246 kilometers
133 nautical miles