| Ithaca to Nyon | 3,898.97 mi (6,274.79 km) |
| Ithaca to Oberriet | 4,005.19 mi (6,445.72 km) |
| Ithaca to Obersiggenthal | 3,947.47 mi (6,352.83 km) |
| Ithaca to Oberwil | 3,916.40 mi (6,302.84 km) |
| Ithaca to Oberwingert | 3,965.91 mi (6,382.52 km) |
| Ithaca to Oftringen | 3,937.78 mi (6,337.25 km) |
| Ithaca to Olten | 3,935.99 mi (6,334.36 km) |
| Ithaca to Onex | 3,899.98 mi (6,276.42 km) |
| Ithaca to Opfikon | 3,960.48 mi (6,373.77 km) |
| Ithaca to Ostermundigen | 3,932.25 mi (6,328.35 km) |
| Ithaca to Payerne | 3,913.82 mi (6,298.69 km) |
| Ithaca to Pfaffikon | 3,971.57 mi (6,391.62 km) |
| Ithaca to Plan-les-Ouates | 3,901.24 mi (6,278.43 km) |
| Ithaca to Pratteln | 3,922.25 mi (6,312.26 km) |
| Ithaca to Prilly | 3,909.34 mi (6,291.47 km) |
