| Serpa to Rapperswil-Jona | 1,048.95 mi (1,688.13 km) |
| Serpa to Regensdorf | 1,043.12 mi (1,678.75 km) |
| Serpa to Reinach | 1,010.89 mi (1,626.88 km) |
| Serpa to Renens | 934.77 mi (1,504.36 km) |
| Serpa to Rheinfelden | 1,021.82 mi (1,644.46 km) |
| Serpa to Richterswil | 1,044.30 mi (1,680.64 km) |
| Serpa to Riehen | 1,016.79 mi (1,636.36 km) |
| Serpa to Risch | 1,030.84 mi (1,658.97 km) |
| Serpa to Romanshorn | 1,083.02 mi (1,742.95 km) |
| Serpa to Rorschach | 1,085.26 mi (1,746.56 km) |
| Serpa to Rothrist | 1,015.38 mi (1,634.10 km) |
| Serpa to Ruti | 1,052.10 mi (1,693.19 km) |
| Serpa to Sankt Gallen | 1,078.57 mi (1,735.80 km) |
| Serpa to Sarnen | 1,014.44 mi (1,632.58 km) |
| Serpa to Schaffhausen | 1,059.74 mi (1,705.48 km) |
