| Newington to Olympia Heights (Florida) | 917.39 mi (1,476.39 km) |
| Newington to Omaha (Nebraska) | 1,010.97 mi (1,627.00 km) |
| Newington to On Top of the World Designated Place (Florida) | 726.15 mi (1,168.63 km) |
| Newington to Onalaska (Wisconsin) | 808.04 mi (1,300.41 km) |
| Newington to Oneida (New York) | 310.48 mi (499.67 km) |
| Newington to Oneonta (New York) | 280.25 mi (451.03 km) |
| Newington to Ontario (California) | 2,252.44 mi (3,624.95 km) |
| Newington to Ontario (Oregon) | 2,073.60 mi (3,337.14 km) |
| Newington to Opa-locka (Florida) | 904.50 mi (1,455.65 km) |
| Newington to Opelika (Alabama) | 621.35 mi (999.97 km) |
| Newington to Opelousas (Louisiana) | 1,016.57 mi (1,636.01 km) |
| Newington to Orange (California) | 2,269.68 mi (3,652.70 km) |
| Newington to Orange (Texas) | 1,113.08 mi (1,791.32 km) |
| Newington to Orange City (Florida) | 716.46 mi (1,153.04 km) |
| Newington to Orangeburg (South Carolina) | 416.01 mi (669.50 km) |
