The calculated distance (air line) between Al Fallūjah and Sāmarrā’ is approximately 59 miles respectively 95 kilometers.
By car or train, the actual journey to Sāmarrā’ is certainly longer, as only the direct route (as the crow flies) between Al Fallūjah and Sāmarrā’ has been calculated here.
Air line (approximately)
95 kilometers
51 nautical miles