| Flower Mound to Oberkirch | 5,165.00 mi (8,312.26 km) |
| Flower Mound to Obernburg am Main | 5,155.52 mi (8,297.01 km) |
| Flower Mound to Obernkirchen | 5,063.07 mi (8,148.23 km) |
| Flower Mound to Oberschleissheim | 5,308.20 mi (8,542.72 km) |
| Flower Mound to Oberstdorf | 5,292.59 mi (8,517.60 km) |
| Flower Mound to Obertraubling | 5,301.82 mi (8,532.46 km) |
| Flower Mound to Obertshausen | 5,135.48 mi (8,264.75 km) |
| Flower Mound to Oberursel | 5,120.81 mi (8,241.15 km) |
| Flower Mound to Ochsenfurt | 5,197.17 mi (8,364.03 km) |
| Flower Mound to Ochsenhausen | 5,253.99 mi (8,455.47 km) |
| Flower Mound to Ochtrup | 4,996.26 mi (8,040.70 km) |
| Flower Mound to Odenthal | 5,036.05 mi (8,104.74 km) |
| Flower Mound to Oelde | 5,044.50 mi (8,118.33 km) |
| Flower Mound to Oelsnitz | 5,243.65 mi (8,438.84 km) |
| Flower Mound to Oer-Erkenschwick | 5,018.85 mi (8,077.06 km) |
