Distance from Merthyr Tydfil to Seaham

The distance from Merthyr Tydfil to Seaham is 480 km (or 299 mi). The estimated driving time for the trip is 4h 56min and the main road for this route is the A1(M). In a straight line, the distance between Merthyr Tydfil and Seaham is 368 km (229 mi).