| Tigard to Opole | 5,394.51 mi (8,681.62 km) |
| Tigard to Orzesze | 5,442.57 mi (8,758.96 km) |
| Tigard to Osowa | 5,173.33 mi (8,325.67 km) |
| Tigard to Ostroda | 5,245.37 mi (8,441.60 km) |
| Tigard to Ostroleka | 5,313.18 mi (8,550.73 km) |
| Tigard to Ostrow Mazowiecka | 5,335.72 mi (8,587.01 km) |
| Tigard to Ostrow Wielkopolski | 5,331.76 mi (8,580.63 km) |
| Tigard to Ostrowiec Swietokrzyski | 5,444.03 mi (8,761.31 km) |
| Tigard to Ostrzeszow | 5,348.36 mi (8,607.35 km) |
| Tigard to Oswiecim | 5,458.75 mi (8,785.00 km) |
| Tigard to Otwock | 5,367.42 mi (8,638.03 km) |
| Tigard to Ozarow Mazowiecki | 5,352.77 mi (8,614.46 km) |
| Tigard to Ozimek | 5,399.66 mi (8,689.91 km) |
| Tigard to Ozorkow | 5,340.35 mi (8,594.46 km) |
| Tigard to Pabianice | 5,361.87 mi (8,629.09 km) |
