| Alvin to Olympia Heights (Florida) | 949.59 mi (1,528.21 km) |
| Alvin to Omaha (Nebraska) | 821.62 mi (1,322.27 km) |
| Alvin to On Top of the World Designated Place (Florida) | 783.98 mi (1,261.70 km) |
| Alvin to Onalaska (Wisconsin) | 1,026.86 mi (1,652.58 km) |
| Alvin to Oneida (New York) | 1,439.69 mi (2,316.96 km) |
| Alvin to Oneonta (New York) | 1,441.25 mi (2,319.47 km) |
| Alvin to Ontario (California) | 1,347.28 mi (2,168.24 km) |
| Alvin to Ontario (Oregon) | 1,561.49 mi (2,512.98 km) |
| Alvin to Opa-locka (Florida) | 950.68 mi (1,529.97 km) |
| Alvin to Opelika (Alabama) | 628.90 mi (1,012.12 km) |
| Alvin to Opelousas (Louisiana) | 207.73 mi (334.32 km) |
| Alvin to Orange (California) | 1,357.48 mi (2,184.65 km) |
| Alvin to Orange (Texas) | 105.06 mi (169.08 km) |
| Alvin to Orange City (Florida) | 845.12 mi (1,360.09 km) |
| Alvin to Orangeburg (South Carolina) | 895.56 mi (1,441.26 km) |
