| Guymon to Opole | 5,370.48 mi (8,642.95 km) |
| Guymon to Orzesze | 5,421.15 mi (8,724.50 km) |
| Guymon to Osowa | 5,205.38 mi (8,377.25 km) |
| Guymon to Ostroda | 5,283.84 mi (8,503.52 km) |
| Guymon to Ostroleka | 5,361.15 mi (8,627.93 km) |
| Guymon to Ostrow Mazowiecka | 5,384.07 mi (8,664.83 km) |
| Guymon to Ostrow Wielkopolski | 5,319.47 mi (8,560.86 km) |
| Guymon to Ostrowiec Swietokrzyski | 5,463.38 mi (8,792.47 km) |
| Guymon to Ostrzeszow | 5,334.28 mi (8,584.69 km) |
| Guymon to Oswiecim | 5,441.36 mi (8,757.03 km) |
| Guymon to Otwock | 5,400.07 mi (8,690.57 km) |
| Guymon to Ozarow Mazowiecki | 5,381.40 mi (8,660.53 km) |
| Guymon to Ozimek | 5,378.91 mi (8,656.52 km) |
| Guymon to Ozorkow | 5,348.69 mi (8,607.88 km) |
| Guymon to Pabianice | 5,367.21 mi (8,637.70 km) |
