| Brent to Olivares | 4,528.43 mi (7,287.81 km) |
| Brent to Olivenza | 4,449.62 mi (7,160.96 km) |
| Brent to Olot | 4,830.52 mi (7,773.97 km) |
| Brent to Onate | 4,577.14 mi (7,366.19 km) |
| Brent to Onda | 4,758.56 mi (7,658.17 km) |
| Brent to Onteniente | 4,772.18 mi (7,680.08 km) |
| Brent to Orihuela | 4,775.09 mi (7,684.77 km) |
| Brent to Osuna | 4,586.83 mi (7,381.80 km) |
| Brent to Ourense | 4,331.09 mi (6,970.22 km) |
| Brent to Oviedo | 4,406.69 mi (7,091.88 km) |
| Brent to Paiporta | 4,765.27 mi (7,668.96 km) |
| Brent to Pajara | 4,323.08 mi (6,957.33 km) |
| Brent to Palafolls | 4,857.02 mi (7,816.62 km) |
| Brent to Palafrugell | 4,869.54 mi (7,836.77 km) |
| Brent to Palamos | 4,869.94 mi (7,837.40 km) |
