| Trondheim to Olivenza | 1,856.50 mi (2,987.75 km) |
| Trondheim to Olot | 1,502.08 mi (2,417.37 km) |
| Trondheim to Onate | 1,498.96 mi (2,412.35 km) |
| Trondheim to Onda | 1,679.24 mi (2,702.48 km) |
| Trondheim to Onteniente | 1,760.10 mi (2,832.61 km) |
| Trondheim to Orihuela | 1,813.63 mi (2,918.76 km) |
| Trondheim to Osuna | 1,922.80 mi (3,094.44 km) |
| Trondheim to Ourense | 1,630.71 mi (2,624.37 km) |
| Trondheim to Oviedo | 1,529.34 mi (2,461.24 km) |
| Trondheim to Paiporta | 1,717.08 mi (2,763.38 km) |
| Trondheim to Pajara | 2,658.05 mi (4,277.72 km) |
| Trondheim to Palafolls | 1,534.89 mi (2,470.16 km) |
| Trondheim to Palafrugell | 1,514.67 mi (2,437.63 km) |
| Trondheim to Palamos | 1,519.83 mi (2,445.92 km) |
| Trondheim to Palencia | 1,596.68 mi (2,569.61 km) |
