| Haddington to Olivares | 1,290.47 mi (2,076.82 km) |
| Haddington to Olivenza | 1,209.70 mi (1,946.82 km) |
| Haddington to Olot | 980.41 mi (1,577.82 km) |
| Haddington to Onate | 893.02 mi (1,437.17 km) |
| Haddington to Onda | 1,110.98 mi (1,787.94 km) |
| Haddington to Onteniente | 1,188.04 mi (1,911.97 km) |
| Haddington to Orihuela | 1,237.63 mi (1,991.78 km) |
| Haddington to Osuna | 1,298.11 mi (2,089.10 km) |
| Haddington to Ourense | 968.00 mi (1,557.84 km) |
| Haddington to Oviedo | 880.80 mi (1,417.51 km) |
| Haddington to Paiporta | 1,147.09 mi (1,846.07 km) |
| Haddington to Pajara | 1,987.70 mi (3,198.90 km) |
| Haddington to Palafolls | 1,017.89 mi (1,638.14 km) |
| Haddington to Palafrugell | 1,005.87 mi (1,618.80 km) |
| Haddington to Palamos | 1,010.29 mi (1,625.90 km) |
