| Ottawa to Waimea (Hawaii) | 4,128.07 mi (6,643.49 km) |
| Ottawa to Waipahu (Hawaii) | 4,194.27 mi (6,750.03 km) |
| Ottawa to Waipio (Hawaii) | 4,192.41 mi (6,747.03 km) |
| Ottawa to Wake Forest (North Carolina) | 668.85 mi (1,076.41 km) |
| Ottawa to Wakefield (Virginia) | 636.34 mi (1,024.09 km) |
| Ottawa to Waldorf (Maryland) | 657.69 mi (1,058.46 km) |
| Ottawa to Walker (Michigan) | 193.84 mi (311.95 km) |
| Ottawa to Walker Mill (Maryland) | 653.17 mi (1,051.18 km) |
| Ottawa to Walla Walla (Washington) | 1,500.16 mi (2,414.27 km) |
| Ottawa to Wallingford Center (Connecticut) | 828.42 mi (1,333.22 km) |
| Ottawa to Wallington (New Jersey) | 766.18 mi (1,233.05 km) |
| Ottawa to Walnut (California) | 1,656.95 mi (2,666.61 km) |
| Ottawa to Walnut Creek (California) | 1,772.53 mi (2,852.61 km) |
| Ottawa to Walnut Park (California) | 1,677.57 mi (2,699.79 km) |
| Ottawa to Waltham (Massachusetts) | 905.86 mi (1,457.84 km) |
