| Astoria to Orbetello | 5,720.10 mi (9,205.61 km) |
| Astoria to Oria | 5,992.70 mi (9,644.31 km) |
| Astoria to Oristano | 5,802.64 mi (9,338.45 km) |
| Astoria to Orta Nova | 5,896.88 mi (9,490.12 km) |
| Astoria to Orte | 5,748.04 mi (9,250.58 km) |
| Astoria to Ortona | 5,803.39 mi (9,339.65 km) |
| Astoria to Orvieto | 5,725.65 mi (9,214.54 km) |
| Astoria to Orzinuovi | 5,511.17 mi (8,869.36 km) |
| Astoria to Osimo | 5,712.48 mi (9,193.34 km) |
| Astoria to Ospitaletto | 5,505.37 mi (8,860.03 km) |
| Astoria to Ostuni | 5,977.03 mi (9,619.10 km) |
| Astoria to Ottaviano | 5,897.10 mi (9,490.46 km) |
| Astoria to Ovada | 5,523.99 mi (8,890.00 km) |
| Astoria to Ozieri | 5,773.49 mi (9,291.53 km) |
| Astoria to Paceco | 6,023.50 mi (9,693.89 km) |
