| Fountain Hills to Opole | 5,857.22 mi (9,426.28 km) |
| Fountain Hills to Orzesze | 5,907.66 mi (9,507.46 km) |
| Fountain Hills to Osowa | 5,672.70 mi (9,129.33 km) |
| Fountain Hills to Ostroda | 5,750.01 mi (9,253.75 km) |
| Fountain Hills to Ostroleka | 5,825.15 mi (9,374.67 km) |
| Fountain Hills to Ostrow Mazowiecka | 5,848.22 mi (9,411.80 km) |
| Fountain Hills to Ostrow Wielkopolski | 5,802.05 mi (9,337.50 km) |
| Fountain Hills to Ostrowiec Swietokrzyski | 5,937.73 mi (9,555.86 km) |
| Fountain Hills to Ostrzeszow | 5,817.58 mi (9,362.48 km) |
| Fountain Hills to Oswiecim | 5,926.87 mi (9,538.38 km) |
| Fountain Hills to Otwock | 5,869.47 mi (9,445.99 km) |
| Fountain Hills to Ozarow Mazowiecki | 5,851.87 mi (9,417.67 km) |
| Fountain Hills to Ozimek | 5,864.75 mi (9,438.40 km) |
| Fountain Hills to Ozorkow | 5,825.20 mi (9,374.75 km) |
| Fountain Hills to Pabianice | 5,844.87 mi (9,406.41 km) |
