| Middletown to Olivares | 4,092.06 mi (6,585.53 km) |
| Middletown to Olivenza | 4,005.27 mi (6,445.87 km) |
| Middletown to Olot | 4,332.73 mi (6,972.85 km) |
| Middletown to Onate | 4,085.48 mi (6,574.94 km) |
| Middletown to Onda | 4,284.36 mi (6,895.01 km) |
| Middletown to Onteniente | 4,307.64 mi (6,932.48 km) |
| Middletown to Orihuela | 4,317.27 mi (6,947.97 km) |
| Middletown to Osuna | 4,148.74 mi (6,676.76 km) |
| Middletown to Ourense | 3,858.01 mi (6,208.86 km) |
| Middletown to Oviedo | 3,920.58 mi (6,309.56 km) |
| Middletown to Paiporta | 4,295.55 mi (6,913.02 km) |
| Middletown to Pajara | 4,000.73 mi (6,438.55 km) |
| Middletown to Palafolls | 4,362.13 mi (7,020.17 km) |
| Middletown to Palafrugell | 4,371.83 mi (7,035.77 km) |
| Middletown to Palamos | 4,372.81 mi (7,037.35 km) |
