| Langley Park to Rivalta di Torino | 4,155.58 mi (6,687.75 km) |
| Langley Park to Rivarolo Canavese | 4,154.94 mi (6,686.73 km) |
| Langley Park to Rivoli | 4,154.43 mi (6,685.91 km) |
| Langley Park to Rocca di Papa | 4,493.08 mi (7,230.91 km) |
| Langley Park to Rocca Priora | 4,494.70 mi (7,233.51 km) |
| Langley Park to Roccapiemonte | 4,616.90 mi (7,430.18 km) |
| Langley Park to Roccastrada | 4,381.51 mi (7,051.35 km) |
| Langley Park to Romano di Lombardia | 4,236.65 mi (6,818.23 km) |
| Langley Park to Rome | 4,478.26 mi (7,207.06 km) |
| Langley Park to Roncade | 4,344.76 mi (6,992.21 km) |
| Langley Park to Ronchi dei Legionari | 4,384.86 mi (7,056.76 km) |
| Langley Park to Ronciglione | 4,452.47 mi (7,165.56 km) |
| Langley Park to Rosa | 4,315.91 mi (6,945.79 km) |
| Langley Park to Rosarno | 4,760.00 mi (7,660.47 km) |
| Langley Park to Rosignano Marittimo | 4,337.48 mi (6,980.50 km) |
