| Layton to Octeville | 4,882.75 mi (7,858.03 km) |
| Layton to Oignies | 4,994.12 mi (8,037.27 km) |
| Layton to Oissel | 4,986.72 mi (8,025.34 km) |
| Layton to Olivet | 5,083.95 mi (8,181.83 km) |
| Layton to Ollioules | 5,450.85 mi (8,772.30 km) |
| Layton to Olonne-sur-Mer | 5,020.72 mi (8,080.07 km) |
| Layton to Oloron-Sainte-Marie | 5,219.64 mi (8,400.20 km) |
| Layton to Onet Village | 5,277.31 mi (8,493.00 km) |
| Layton to Onnaing | 5,017.08 mi (8,074.21 km) |
| Layton to Orange | 5,365.03 mi (8,634.19 km) |
| Layton to Orchies | 5,001.76 mi (8,049.55 km) |
| Layton to Orleans | 5,082.37 mi (8,179.29 km) |
| Layton to Orly | 5,057.87 mi (8,139.86 km) |
| Layton to Ormesson-sur-Marne | 5,060.60 mi (8,144.26 km) |
| Layton to Orsay | 5,053.36 mi (8,132.59 km) |
