| Pittsburg to Nyon | 5,780.67 mi (9,303.09 km) |
| Pittsburg to Oberriet | 5,825.37 mi (9,375.03 km) |
| Pittsburg to Obersiggenthal | 5,780.22 mi (9,302.37 km) |
| Pittsburg to Oberwil | 5,757.80 mi (9,266.28 km) |
| Pittsburg to Oberwingert | 5,791.99 mi (9,321.31 km) |
| Pittsburg to Oftringen | 5,778.90 mi (9,300.25 km) |
| Pittsburg to Olten | 5,776.60 mi (9,296.55 km) |
| Pittsburg to Onex | 5,787.50 mi (9,314.08 km) |
| Pittsburg to Opfikon | 5,790.92 mi (9,319.59 km) |
| Pittsburg to Ostermundigen | 5,786.43 mi (9,312.36 km) |
| Pittsburg to Payerne | 5,777.81 mi (9,298.49 km) |
| Pittsburg to Pfaffikon | 5,800.70 mi (9,335.32 km) |
| Pittsburg to Plan-les-Ouates | 5,788.89 mi (9,316.32 km) |
| Pittsburg to Pratteln | 5,761.77 mi (9,272.68 km) |
| Pittsburg to Prilly | 5,783.41 mi (9,307.50 km) |
