The calculated distance (air line) between Al Başrah al Qadīmah and Umm Qaşr is approximately 33 miles respectively 53 kilometers.
By car or train, the actual journey to Umm Qaşr is certainly longer, as only the direct route (as the crow flies) between Al Başrah al Qadīmah and Umm Qaşr has been calculated here.
Air line (approximately)
53 kilometers
29 nautical miles