| Lake in the Hills to Olivares | 4,200.42 mi (6,759.92 km) |
| Lake in the Hills to Olivenza | 4,109.86 mi (6,614.18 km) |
| Lake in the Hills to Olot | 4,401.73 mi (7,083.90 km) |
| Lake in the Hills to Onate | 4,160.44 mi (6,695.58 km) |
| Lake in the Hills to Onda | 4,369.02 mi (7,031.26 km) |
| Lake in the Hills to Onteniente | 4,398.06 mi (7,077.99 km) |
| Lake in the Hills to Orihuela | 4,411.62 mi (7,099.82 km) |
| Lake in the Hills to Osuna | 4,255.70 mi (6,848.89 km) |
| Lake in the Hills to Ourense | 3,946.73 mi (6,351.64 km) |
| Lake in the Hills to Oviedo | 4,000.50 mi (6,438.18 km) |
| Lake in the Hills to Paiporta | 4,382.90 mi (7,053.60 km) |
| Lake in the Hills to Pajara | 4,164.16 mi (6,701.57 km) |
| Lake in the Hills to Palafolls | 4,432.87 mi (7,134.01 km) |
| Lake in the Hills to Palafrugell | 4,440.60 mi (7,146.45 km) |
| Lake in the Hills to Palamos | 4,441.97 mi (7,148.65 km) |
