| Anacortes to Orbetello | 5,556.16 mi (8,941.77 km) |
| Anacortes to Oria | 5,826.78 mi (9,377.29 km) |
| Anacortes to Oristano | 5,640.92 mi (9,078.19 km) |
| Anacortes to Orta Nova | 5,731.45 mi (9,223.88 km) |
| Anacortes to Orte | 5,583.59 mi (8,985.92 km) |
| Anacortes to Ortona | 5,638.18 mi (9,073.78 km) |
| Anacortes to Orvieto | 5,561.24 mi (8,949.95 km) |
| Anacortes to Orzinuovi | 5,346.78 mi (8,604.81 km) |
| Anacortes to Osimo | 5,547.31 mi (8,927.54 km) |
| Anacortes to Ospitaletto | 5,340.87 mi (8,595.31 km) |
| Anacortes to Ostuni | 5,811.08 mi (9,352.02 km) |
| Anacortes to Ottaviano | 5,732.27 mi (9,225.19 km) |
| Anacortes to Ovada | 5,360.39 mi (8,626.72 km) |
| Anacortes to Ozieri | 5,611.27 mi (9,030.46 km) |
| Anacortes to Paceco | 5,860.43 mi (9,431.45 km) |
