| Gloucester to Ondokuzmayis | 1,925.72 mi (3,099.15 km) |
| Gloucester to Ordu | 2,022.65 mi (3,255.15 km) |
| Gloucester to Ortahisar | 1,994.87 mi (3,210.44 km) |
| Gloucester to Ortakent | 1,758.15 mi (2,829.47 km) |
| Gloucester to Ortaklar | 1,728.71 mi (2,782.09 km) |
| Gloucester to Ortakoy | 1,955.39 mi (3,146.89 km) |
| Gloucester to Ortakoy | 1,940.61 mi (3,123.11 km) |
| Gloucester to Osmaneli | 1,718.74 mi (2,766.05 km) |
| Gloucester to Osmaniye | 2,121.62 mi (3,414.41 km) |
| Gloucester to Ozdere | 1,707.65 mi (2,748.19 km) |
| Gloucester to Palu | 2,204.97 mi (3,548.55 km) |
| Gloucester to Pamukkale | 1,791.46 mi (2,883.08 km) |
| Gloucester to Patnos | 2,306.27 mi (3,711.59 km) |
| Gloucester to Pazar | 1,985.58 mi (3,195.47 km) |
| Gloucester to Pazarcik | 2,146.66 mi (3,454.72 km) |
