| Burnham-on-Sea to Olympia Heights (Florida) | 4,317.18 mi (6,947.82 km) |
| Burnham-on-Sea to Omaha (Nebraska) | 4,195.08 mi (6,751.33 km) |
| Burnham-on-Sea to On Top of the World Designated Place (Florida) | 4,232.28 mi (6,811.20 km) |
| Burnham-on-Sea to Onalaska (Wisconsin) | 3,890.98 mi (6,261.93 km) |
| Burnham-on-Sea to Oneida (New York) | 3,318.31 mi (5,340.30 km) |
| Burnham-on-Sea to Oneonta (New York) | 3,319.70 mi (5,342.54 km) |
| Burnham-on-Sea to Ontario (California) | 5,338.69 mi (8,591.78 km) |
| Burnham-on-Sea to Ontario (Oregon) | 4,765.03 mi (7,668.58 km) |
| Burnham-on-Sea to Opa-locka (Florida) | 4,304.79 mi (6,927.90 km) |
| Burnham-on-Sea to Opelika (Alabama) | 4,188.12 mi (6,740.12 km) |
| Burnham-on-Sea to Opelousas (Louisiana) | 4,569.28 mi (7,353.54 km) |
| Burnham-on-Sea to Orange (California) | 5,359.10 mi (8,624.65 km) |
| Burnham-on-Sea to Orange (Texas) | 4,657.87 mi (7,496.11 km) |
| Burnham-on-Sea to Orange City (Florida) | 4,198.34 mi (6,756.57 km) |
| Burnham-on-Sea to Orangeburg (South Carolina) | 3,960.30 mi (6,373.48 km) |
