| Bryn to Orbetello | 994.21 mi (1,600.03 km) |
| Bryn to Oria | 1,303.16 mi (2,097.23 km) |
| Bryn to Oristano | 1,076.96 mi (1,733.20 km) |
| Bryn to Orta Nova | 1,195.12 mi (1,923.36 km) |
| Bryn to Orte | 1,028.21 mi (1,654.74 km) |
| Bryn to Ortona | 1,097.87 mi (1,766.85 km) |
| Bryn to Orvieto | 1,005.53 mi (1,618.24 km) |
| Bryn to Orzinuovi | 793.42 mi (1,276.88 km) |
| Bryn to Osimo | 1,008.15 mi (1,622.46 km) |
| Bryn to Ospitaletto | 789.78 mi (1,271.02 km) |
| Bryn to Ostuni | 1,289.10 mi (2,074.61 km) |
| Bryn to Ottaviano | 1,181.95 mi (1,902.17 km) |
| Bryn to Ovada | 795.89 mi (1,280.86 km) |
| Bryn to Ozieri | 1,044.66 mi (1,681.22 km) |
| Bryn to Paceco | 1,292.91 mi (2,080.73 km) |
