| Haapsalu to Olivenza | 1,943.12 mi (3,127.16 km) |
| Haapsalu to Olot | 1,468.13 mi (2,362.72 km) |
| Haapsalu to Onate | 1,556.80 mi (2,505.43 km) |
| Haapsalu to Onda | 1,673.15 mi (2,692.67 km) |
| Haapsalu to Onteniente | 1,750.53 mi (2,817.21 km) |
| Haapsalu to Orihuela | 1,803.91 mi (2,903.11 km) |
| Haapsalu to Osuna | 1,969.05 mi (3,168.88 km) |
| Haapsalu to Ourense | 1,763.22 mi (2,837.63 km) |
| Haapsalu to Oviedo | 1,644.08 mi (2,645.89 km) |
| Haapsalu to Paiporta | 1,709.19 mi (2,750.68 km) |
| Haapsalu to Pajara | 2,762.00 mi (4,445.01 km) |
| Haapsalu to Palafolls | 1,491.95 mi (2,401.06 km) |
| Haapsalu to Palafrugell | 1,466.51 mi (2,360.11 km) |
| Haapsalu to Palamos | 1,471.67 mi (2,368.43 km) |
| Haapsalu to Palencia | 1,677.11 mi (2,699.04 km) |
