| Didcot to Iselin (New Jersey) | 3,432.50 mi (5,524.07 km) |
| Didcot to Isla Vista (California) | 5,431.31 mi (8,740.85 km) |
| Didcot to Issaquah (Washington) | 4,745.45 mi (7,637.06 km) |
| Didcot to Ithaca (New York) | 3,440.48 mi (5,536.92 km) |
| Didcot to Ives Estates (Florida) | 4,369.59 mi (7,032.18 km) |
| Didcot to Jackson (Michigan) | 3,761.03 mi (6,052.80 km) |
| Didcot to Jackson (Mississippi) | 4,465.75 mi (7,186.92 km) |
| Didcot to Jackson (Missouri) | 4,193.46 mi (6,748.72 km) |
| Didcot to Jackson (Tennessee) | 4,245.34 mi (6,832.22 km) |
| Didcot to Jackson (Wyoming) | 4,638.73 mi (7,465.32 km) |
| Didcot to Jacksonville (Alabama) | 4,211.83 mi (6,778.29 km) |
| Didcot to Jacksonville (Arkansas) | 4,413.47 mi (7,102.80 km) |
| Didcot to Jacksonville (Florida) | 4,214.32 mi (6,782.29 km) |
| Didcot to Jacksonville (Illinois) | 4,102.67 mi (6,602.62 km) |
| Didcot to Jacksonville (North Carolina) | 3,823.83 mi (6,153.86 km) |
