| Omaha to Olivares | 4,581.80 mi (7,373.69 km) |
| Omaha to Olivenza | 4,489.58 mi (7,225.28 km) |
| Omaha to Olot | 4,760.00 mi (7,660.48 km) |
| Omaha to Onate | 4,523.32 mi (7,279.58 km) |
| Omaha to Onda | 4,737.22 mi (7,623.83 km) |
| Omaha to Onteniente | 4,769.53 mi (7,675.82 km) |
| Omaha to Orihuela | 4,785.28 mi (7,701.17 km) |
| Omaha to Osuna | 4,636.29 mi (7,461.39 km) |
| Omaha to Ourense | 4,318.44 mi (6,949.86 km) |
| Omaha to Oviedo | 4,366.93 mi (7,027.89 km) |
| Omaha to Paiporta | 4,752.65 mi (7,648.66 km) |
| Omaha to Pajara | 4,564.30 mi (7,345.53 km) |
| Omaha to Palafolls | 4,792.18 mi (7,712.27 km) |
| Omaha to Palafrugell | 4,798.59 mi (7,722.58 km) |
| Omaha to Palamos | 4,800.21 mi (7,725.20 km) |
