| Gallup to Olivares | 5,372.51 mi (8,646.22 km) |
| Gallup to Olivenza | 5,279.65 mi (8,496.77 km) |
| Gallup to Olot | 5,535.35 mi (8,908.28 km) |
| Gallup to Onate | 5,302.85 mi (8,534.11 km) |
| Gallup to Onda | 5,520.39 mi (8,884.21 km) |
| Gallup to Onteniente | 5,554.89 mi (8,939.73 km) |
| Gallup to Orihuela | 5,571.99 mi (8,967.26 km) |
| Gallup to Osuna | 5,426.67 mi (8,733.38 km) |
| Gallup to Ourense | 5,104.39 mi (8,214.72 km) |
| Gallup to Oviedo | 5,149.32 mi (8,287.04 km) |
| Gallup to Paiporta | 5,536.88 mi (8,910.74 km) |
| Gallup to Pajara | 5,348.85 mi (8,608.15 km) |
| Gallup to Palafolls | 5,568.35 mi (8,961.39 km) |
| Gallup to Palafrugell | 5,573.62 mi (8,969.88 km) |
| Gallup to Palamos | 5,575.46 mi (8,972.83 km) |
