| Thessaloniki to Olivenza | 1,595.48 mi (2,567.67 km) |
| Thessaloniki to Olot | 1,062.24 mi (1,709.51 km) |
| Thessaloniki to Onate | 1,310.40 mi (2,108.89 km) |
| Thessaloniki to Onda | 1,219.78 mi (1,963.05 km) |
| Thessaloniki to Onteniente | 1,253.45 mi (2,017.23 km) |
| Thessaloniki to Orihuela | 1,283.85 mi (2,066.16 km) |
| Thessaloniki to Osuna | 1,518.37 mi (2,443.57 km) |
| Thessaloniki to Ourense | 1,589.60 mi (2,558.21 km) |
| Thessaloniki to Oviedo | 1,482.17 mi (2,385.32 km) |
| Thessaloniki to Paiporta | 1,234.63 mi (1,986.94 km) |
| Thessaloniki to Pajara | 2,253.08 mi (3,625.97 km) |
| Thessaloniki to Palafolls | 1,050.03 mi (1,689.86 km) |
| Thessaloniki to Palafrugell | 1,028.12 mi (1,654.59 km) |
| Thessaloniki to Palamos | 1,030.03 mi (1,657.68 km) |
| Thessaloniki to Palencia | 1,422.21 mi (2,288.83 km) |
