| Anchorage to Olympia Heights (Florida) | 3,971.58 mi (6,391.64 km) |
| Anchorage to Omaha (Nebraska) | 2,576.00 mi (4,145.67 km) |
| Anchorage to On Top of the World Designated Place (Florida) | 3,710.48 mi (5,971.43 km) |
| Anchorage to Onalaska (Wisconsin) | 2,599.81 mi (4,183.99 km) |
| Anchorage to Oneida (New York) | 3,156.39 mi (5,079.71 km) |
| Anchorage to Oneonta (New York) | 3,208.71 mi (5,163.92 km) |
| Anchorage to Ontario (California) | 2,333.87 mi (3,756.00 km) |
| Anchorage to Ontario (Oregon) | 1,762.48 mi (2,836.44 km) |
| Anchorage to Opa-locka (Florida) | 3,964.10 mi (6,379.60 km) |
| Anchorage to Opelika (Alabama) | 3,404.37 mi (5,478.80 km) |
| Anchorage to Opelousas (Louisiana) | 3,306.06 mi (5,320.59 km) |
| Anchorage to Orange (California) | 2,342.82 mi (3,770.40 km) |
| Anchorage to Orange (Texas) | 3,275.08 mi (5,270.74 km) |
| Anchorage to Orange City (Florida) | 3,753.53 mi (6,040.73 km) |
| Anchorage to Orangeburg (South Carolina) | 3,507.50 mi (5,644.78 km) |
