However, here's an example of a train you might be able to catch from Sheffield to arrive in London by 10 am on a weekday:
- Depart Sheffield at approximately 6:55 am.
- Arrive in London St Pancras International at 9:47 am.
This example is just an estimation and may vary depending on the exact date, time, and train service chosen. To plan your journey accurately, I recommend using a reliable journey planner website or app that provides live train schedules and updates.