| Sintra to Oberriet | 1,118.92 mi (1,800.72 km) |
| Sintra to Obersiggenthal | 1,070.65 mi (1,723.05 km) |
| Sintra to Oberwil | 1,041.24 mi (1,675.71 km) |
| Sintra to Oberwingert | 1,091.40 mi (1,756.43 km) |
| Sintra to Oftringen | 1,049.64 mi (1,689.24 km) |
| Sintra to Olten | 1,050.03 mi (1,689.85 km) |
| Sintra to Onex | 937.13 mi (1,508.16 km) |
| Sintra to Opfikon | 1,080.35 mi (1,738.66 km) |
| Sintra to Ostermundigen | 1,020.27 mi (1,641.96 km) |
| Sintra to Payerne | 992.57 mi (1,597.39 km) |
| Sintra to Pfaffikon | 1,087.34 mi (1,749.91 km) |
| Sintra to Plan-les-Ouates | 937.31 mi (1,508.45 km) |
| Sintra to Pratteln | 1,047.28 mi (1,685.43 km) |
| Sintra to Prilly | 969.45 mi (1,560.18 km) |
| Sintra to Pully | 971.73 mi (1,563.85 km) |
