| Alpena to Redondela | 3,605.55 mi (5,802.58 km) |
| Alpena to Reinosa | 3,775.06 mi (6,075.37 km) |
| Alpena to Requena | 4,040.16 mi (6,502.01 km) |
| Alpena to Reus | 4,069.95 mi (6,549.95 km) |
| Alpena to Rianxo | 3,584.00 mi (5,767.88 km) |
| Alpena to Ribadeo | 3,630.92 mi (5,843.40 km) |
| Alpena to Rincon de la Victoria | 4,008.03 mi (6,450.29 km) |
| Alpena to Ripoll | 4,074.56 mi (6,557.37 km) |
| Alpena to Ripollet | 4,101.02 mi (6,599.95 km) |
| Alpena to Rojales | 4,112.48 mi (6,618.40 km) |
| Alpena to Ronda | 3,967.23 mi (6,384.64 km) |
| Alpena to Roquetas de Mar | 4,081.45 mi (6,568.45 km) |
| Alpena to Rosas | 4,113.40 mi (6,619.88 km) |
| Alpena to Rubi | 4,095.87 mi (6,591.67 km) |
| Alpena to Rute | 3,980.50 mi (6,405.99 km) |
