| Tucson to Opole | 5,919.99 mi (9,527.30 km) |
| Tucson to Orzesze | 5,970.53 mi (9,608.64 km) |
| Tucson to Osowa | 5,739.80 mi (9,237.31 km) |
| Tucson to Ostroda | 5,817.43 mi (9,362.26 km) |
| Tucson to Ostroleka | 5,893.11 mi (9,484.05 km) |
| Tucson to Ostrow Mazowiecka | 5,916.17 mi (9,521.16 km) |
| Tucson to Ostrow Wielkopolski | 5,865.77 mi (9,440.04 km) |
| Tucson to Ostrowiec Swietokrzyski | 6,003.49 mi (9,661.69 km) |
| Tucson to Ostrzeszow | 5,881.14 mi (9,464.78 km) |
| Tucson to Oswiecim | 5,990.00 mi (9,639.97 km) |
| Tucson to Otwock | 5,936.28 mi (9,553.52 km) |
| Tucson to Ozarow Mazowiecki | 5,918.43 mi (9,524.79 km) |
| Tucson to Ozimek | 5,927.74 mi (9,539.78 km) |
| Tucson to Ozorkow | 5,890.36 mi (9,479.62 km) |
| Tucson to Pabianice | 5,909.79 mi (9,510.88 km) |
