| Howard to Nyon | 4,276.92 mi (6,883.04 km) |
| Howard to Oberriet | 4,363.86 mi (7,022.95 km) |
| Howard to Obersiggenthal | 4,309.32 mi (6,935.19 km) |
| Howard to Oberwil | 4,280.64 mi (6,889.03 km) |
| Howard to Oberwingert | 4,325.83 mi (6,961.75 km) |
| Howard to Oftringen | 4,302.34 mi (6,923.95 km) |
| Howard to Olten | 4,300.34 mi (6,920.73 km) |
| Howard to Onex | 4,279.99 mi (6,887.98 km) |
| Howard to Opfikon | 4,321.80 mi (6,955.26 km) |
| Howard to Ostermundigen | 4,301.23 mi (6,922.16 km) |
| Howard to Payerne | 4,285.86 mi (6,897.43 km) |
| Howard to Pfaffikon | 4,332.65 mi (6,972.72 km) |
| Howard to Plan-les-Ouates | 4,281.32 mi (6,890.11 km) |
| Howard to Pratteln | 4,285.96 mi (6,897.59 km) |
| Howard to Prilly | 4,284.81 mi (6,895.74 km) |
