| Fairfield to Oerlinghausen | 5,533.13 mi (8,904.71 km) |
| Fairfield to Oestrich-Winkel | 5,623.63 mi (9,050.35 km) |
| Fairfield to Offenburg | 5,705.95 mi (9,182.84 km) |
| Fairfield to Oftersheim | 5,674.06 mi (9,131.52 km) |
| Fairfield to Ohrdruf | 5,649.30 mi (9,091.66 km) |
| Fairfield to Ohringen | 5,708.15 mi (9,186.39 km) |
| Fairfield to Olbernhau | 5,723.19 mi (9,210.58 km) |
| Fairfield to Olching | 5,812.60 mi (9,354.47 km) |
| Fairfield to Oldenburg | 5,456.97 mi (8,782.14 km) |
| Fairfield to Oldenburg in Holstein | 5,458.27 mi (8,784.23 km) |
| Fairfield to Olfen | 5,513.37 mi (8,872.92 km) |
| Fairfield to Olpe | 5,563.47 mi (8,953.54 km) |
| Fairfield to Olsberg | 5,562.31 mi (8,951.67 km) |
| Fairfield to Oranienburg | 5,601.15 mi (9,014.18 km) |
| Fairfield to Ortenberg | 5,632.19 mi (9,064.13 km) |
