If you're looking for a meeting place or a good stop around ½ or halfway between Bradford and Burnham-on-Sea, you can try Birmingham, United Kingdom, which is about 2 hours south of Bradford, or about 2 hours northeast of Burnham-on-Sea.
About ¼ or a fourth of the way, you can stop at Nottingham, United Kingdom. This is about 1 hour southeast of Bradford.
About ⅔ or two thirds of the way, you can stop at Cheltenham, United Kingdom. This is almost 3 hours south of Bradford, or a little over 1 hour northeast of Burnham-on-Sea.
If you drive straight through without stopping at all, the total distance is 385 km. The distances shown above don't include local roads to get into each town, so if you're planning a long road trip, make sure you factor in traffic and road conditions, rest stop breaks, and interesting detours along the way. If you're in a rush, you can do the trip with zero stops, and your total travel time would be around 3 hours, 56 minutes.