| Fort William to Odessa (Texas) | 4,660.44 mi (7,500.25 km) |
| Fort William to Ogden (Utah) | 4,449.11 mi (7,160.15 km) |
| Fort William to Oildale (California) | 4,994.20 mi (8,037.39 km) |
| Fort William to Ojus (Florida) | 4,176.52 mi (6,721.46 km) |
| Fort William to Okemos (Michigan) | 3,457.39 mi (5,564.13 km) |
| Fort William to Oklahoma City (Oklahoma) | 4,295.28 mi (6,912.59 km) |
| Fort William to Okmulgee (Oklahoma) | 4,234.77 mi (6,815.20 km) |
| Fort William to Olathe (Kansas) | 4,018.66 mi (6,467.42 km) |
| Fort William to Old Jamestown (Missouri) | 3,861.98 mi (6,215.26 km) |
| Fort William to Oldsmar (Florida) | 4,156.63 mi (6,689.45 km) |
| Fort William to Olean (New York) | 3,271.90 mi (5,265.61 km) |
| Fort William to Olive Branch (Mississippi) | 4,050.33 mi (6,518.37 km) |
| Fort William to Olivehurst (California) | 4,851.87 mi (7,808.33 km) |
| Fort William to Olney (Maryland) | 3,366.08 mi (5,417.19 km) |
| Fort William to Olympia (Washington) | 4,420.79 mi (7,114.57 km) |
