| Kelso to Olivares | 5,460.47 mi (8,787.77 km) |
| Kelso to Olivenza | 5,359.88 mi (8,625.89 km) |
| Kelso to Olot | 5,475.08 mi (8,811.30 km) |
| Kelso to Onate | 5,279.40 mi (8,496.37 km) |
| Kelso to Onda | 5,515.77 mi (8,876.78 km) |
| Kelso to Onteniente | 5,568.31 mi (8,961.32 km) |
| Kelso to Orihuela | 5,598.29 mi (9,009.58 km) |
| Kelso to Osuna | 5,506.50 mi (8,861.86 km) |
| Kelso to Ourense | 5,141.36 mi (8,274.22 km) |
| Kelso to Oviedo | 5,153.46 mi (8,293.69 km) |
| Kelso to Paiporta | 5,540.65 mi (8,916.81 km) |
| Kelso to Pajara | 5,639.10 mi (9,075.26 km) |
| Kelso to Palafolls | 5,511.83 mi (8,870.43 km) |
| Kelso to Palafrugell | 5,509.88 mi (8,867.30 km) |
| Kelso to Palamos | 5,512.95 mi (8,872.23 km) |
