Comprehensive Recommendation
For the journey from Waverly, OH, to Meridian, MS, the most efficient mode of transport would be to fly, given the distance of 600 miles and a duration of approximately 4 hours including layovers. Airlines like Delta and American provide reliable services, and booking in advance may secure lower fares.
If you prefer a more budget-friendly option, consider taking a bus with Greyhound or Megabus, which will take approximately 10-12 hours. However, if you're looking for the most flexibility and the option to stop along the route, driving may be the best choice, costing about €90 in fuel and tolls, and taking around 9 hours of drive time.