| Oklahoma City to Redondela | 4,580.72 mi (7,371.96 km) |
| Oklahoma City to Reinosa | 4,757.69 mi (7,656.77 km) |
| Oklahoma City to Requena | 5,017.28 mi (8,074.53 km) |
| Oklahoma City to Reus | 5,053.95 mi (8,133.55 km) |
| Oklahoma City to Rianxo | 4,560.11 mi (7,338.79 km) |
| Oklahoma City to Ribadeo | 4,611.81 mi (7,422.00 km) |
| Oklahoma City to Rincon de la Victoria | 4,970.15 mi (7,998.68 km) |
| Oklahoma City to Ripoll | 5,061.59 mi (8,145.85 km) |
| Oklahoma City to Ripollet | 5,086.76 mi (8,186.34 km) |
| Oklahoma City to Rojales | 5,086.05 mi (8,185.20 km) |
| Oklahoma City to Ronda | 4,927.58 mi (7,930.17 km) |
| Oklahoma City to Roquetas de Mar | 5,047.13 mi (8,122.57 km) |
| Oklahoma City to Rosas | 5,101.34 mi (8,209.81 km) |
| Oklahoma City to Rubi | 5,081.48 mi (8,177.85 km) |
| Oklahoma City to Rute | 4,944.79 mi (7,957.88 km) |
