| Pittsburgh to Redon | 3,735.20 mi (6,011.23 km) |
| Pittsburgh to Reims | 3,944.59 mi (6,348.21 km) |
| Pittsburgh to Rennes | 3,739.88 mi (6,018.75 km) |
| Pittsburgh to Revel | 4,038.55 mi (6,499.42 km) |
| Pittsburgh to Reze | 3,769.96 mi (6,067.16 km) |
| Pittsburgh to Riedisheim | 4,127.98 mi (6,643.34 km) |
| Pittsburgh to Rillieux-la-Pape | 4,087.87 mi (6,578.79 km) |
| Pittsburgh to Riom | 4,009.36 mi (6,452.45 km) |
| Pittsburgh to Riorges | 4,044.27 mi (6,508.62 km) |
| Pittsburgh to Ris-Orangis | 3,896.24 mi (6,270.40 km) |
| Pittsburgh to Rive-de-Gier | 4,085.35 mi (6,574.74 km) |
| Pittsburgh to Rivesaltes | 4,099.74 mi (6,597.89 km) |
| Pittsburgh to Rixheim | 4,129.51 mi (6,645.80 km) |
| Pittsburgh to Roanne | 4,045.67 mi (6,510.88 km) |
| Pittsburgh to Roche-la-Moliere | 4,075.90 mi (6,559.53 km) |
