| Roma to Olivares | 5,279.80 mi (8,497.02 km) |
| Roma to Olivenza | 5,198.30 mi (8,365.86 km) |
| Roma to Olot | 5,556.22 mi (8,941.87 km) |
| Roma to Onate | 5,305.82 mi (8,538.89 km) |
| Roma to Onda | 5,496.20 mi (8,845.28 km) |
| Roma to Onteniente | 5,514.02 mi (8,873.96 km) |
| Roma to Orihuela | 5,519.60 mi (8,882.95 km) |
| Roma to Osuna | 5,337.79 mi (8,590.35 km) |
| Roma to Ourense | 5,068.40 mi (8,156.81 km) |
| Roma to Oviedo | 5,137.95 mi (8,268.74 km) |
| Roma to Paiporta | 5,504.91 mi (8,859.29 km) |
| Roma to Pajara | 5,089.81 mi (8,191.25 km) |
| Roma to Palafolls | 5,584.40 mi (8,987.23 km) |
| Roma to Palafrugell | 5,595.35 mi (9,004.84 km) |
| Roma to Palamos | 5,596.08 mi (9,006.01 km) |
