| Senec to Odessa (Texas) | 5,769.58 mi (9,285.23 km) |
| Senec to Ogden (Utah) | 5,527.65 mi (8,895.89 km) |
| Senec to Oildale (California) | 6,064.29 mi (9,759.53 km) |
| Senec to Ojus (Florida) | 5,228.07 mi (8,413.77 km) |
| Senec to Okemos (Michigan) | 4,565.43 mi (7,347.35 km) |
| Senec to Oklahoma City (Oklahoma) | 5,404.72 mi (8,698.06 km) |
| Senec to Okmulgee (Oklahoma) | 5,344.14 mi (8,600.57 km) |
| Senec to Olathe (Kansas) | 5,128.02 mi (8,252.74 km) |
| Senec to Old Jamestown (Missouri) | 4,970.61 mi (7,999.42 km) |
| Senec to Oldsmar (Florida) | 5,226.87 mi (8,411.84 km) |
| Senec to Olean (New York) | 4,372.75 mi (7,037.25 km) |
| Senec to Olive Branch (Mississippi) | 5,154.99 mi (8,296.16 km) |
| Senec to Olivehurst (California) | 5,901.38 mi (9,497.36 km) |
| Senec to Olney (Maryland) | 4,456.66 mi (7,172.30 km) |
| Senec to Olympia (Washington) | 5,435.76 mi (8,748.01 km) |
