| Houghton Regis to Rhosllanerchrugog | 131.03 mi (210.88 km) |
| Houghton Regis to Rhyl | 157.96 mi (254.22 km) |
| Houghton Regis to Rhymney | 118.19 mi (190.21 km) |
| Houghton Regis to Richmond | 32.40 mi (52.14 km) |
| Houghton Regis to Rickmansworth | 18.52 mi (29.81 km) |
| Houghton Regis to Ripley | 87.46 mi (140.75 km) |
| Houghton Regis to Ripon | 159.85 mi (257.25 km) |
| Houghton Regis to Risca | 111.64 mi (179.67 km) |
| Houghton Regis to Rochdale | 136.50 mi (219.68 km) |
| Houghton Regis to Rochester | 57.15 mi (91.97 km) |
| Houghton Regis to Rock Ferry | 145.40 mi (233.99 km) |
| Houghton Regis to Rogerstone | 110.32 mi (177.55 km) |
| Houghton Regis to Romford | 37.68 mi (60.65 km) |
| Houghton Regis to Romsey | 75.81 mi (122.01 km) |
| Houghton Regis to Ross on Wye | 87.90 mi (141.47 km) |
