| Dundalk to Rhondda | 3,489.10 mi (5,615.16 km) |
| Dundalk to Rhosllanerchrugog | 3,477.62 mi (5,596.69 km) |
| Dundalk to Rhyl | 3,454.91 mi (5,560.14 km) |
| Dundalk to Rhymney | 3,491.86 mi (5,619.60 km) |
| Dundalk to Richmond | 3,620.23 mi (5,826.20 km) |
| Dundalk to Rickmansworth | 3,609.56 mi (5,809.02 km) |
| Dundalk to Ripley | 3,542.60 mi (5,701.26 km) |
| Dundalk to Ripon | 3,517.25 mi (5,660.46 km) |
| Dundalk to Risca | 3,502.69 mi (5,637.03 km) |
| Dundalk to Rochdale | 3,501.96 mi (5,635.85 km) |
| Dundalk to Rochester | 3,654.72 mi (5,881.71 km) |
| Dundalk to Rock Ferry | 3,472.78 mi (5,588.90 km) |
| Dundalk to Rogerstone | 3,504.57 mi (5,640.05 km) |
| Dundalk to Romford | 3,637.20 mi (5,853.51 km) |
| Dundalk to Romsey | 3,581.15 mi (5,763.30 km) |
