| Tigard to Norwich | 4,897.99 mi (7,882.56 km) |
| Tigard to Nottingham | 4,816.59 mi (7,751.55 km) |
| Tigard to Nuneaton | 4,831.00 mi (7,774.75 km) |
| Tigard to Oadby | 4,837.45 mi (7,785.12 km) |
| Tigard to Oakengates | 4,795.39 mi (7,717.43 km) |
| Tigard to Oakham | 4,842.73 mi (7,793.63 km) |
| Tigard to Oldbury | 4,817.20 mi (7,752.53 km) |
| Tigard to Oldham | 4,759.61 mi (7,659.86 km) |
| Tigard to Ollerton | 4,806.88 mi (7,735.93 km) |
| Tigard to Olton | 4,826.44 mi (7,767.41 km) |
| Tigard to Omagh | 4,565.45 mi (7,347.38 km) |
| Tigard to Ormesby | 4,731.02 mi (7,613.84 km) |
| Tigard to Ormskirk | 4,737.90 mi (7,624.91 km) |
| Tigard to Orpington | 4,934.68 mi (7,941.60 km) |
| Tigard to Ossett | 4,766.65 mi (7,671.18 km) |
