| Tulsa to Oerlinghausen | 4,848.40 mi (7,802.74 km) |
| Tulsa to Oestrich-Winkel | 4,900.06 mi (7,885.88 km) |
| Tulsa to Offenburg | 4,957.01 mi (7,977.54 km) |
| Tulsa to Oftersheim | 4,946.12 mi (7,960.01 km) |
| Tulsa to Ohrdruf | 4,966.39 mi (7,992.63 km) |
| Tulsa to Ohringen | 4,986.72 mi (8,025.35 km) |
| Tulsa to Olbernhau | 5,064.55 mi (8,150.61 km) |
| Tulsa to Olching | 5,094.33 mi (8,198.53 km) |
| Tulsa to Oldenburg | 4,787.68 mi (7,705.02 km) |
| Tulsa to Oldenburg in Holstein | 4,833.79 mi (7,779.23 km) |
| Tulsa to Olfen | 4,812.18 mi (7,744.45 km) |
| Tulsa to Olpe | 4,854.95 mi (7,813.28 km) |
| Tulsa to Olsberg | 4,865.59 mi (7,830.41 km) |
| Tulsa to Oranienburg | 4,974.56 mi (8,005.77 km) |
| Tulsa to Ortenberg | 4,924.83 mi (7,925.75 km) |
