| Oklahoma City to Karditsa | 5,986.08 mi (9,633.67 km) |
| Oklahoma City to Kastoria | 5,905.83 mi (9,504.52 km) |
| Oklahoma City to Katerini | 5,964.14 mi (9,598.36 km) |
| Oklahoma City to Keratsini | 6,119.34 mi (9,848.13 km) |
| Oklahoma City to Kerkyra | 5,897.34 mi (9,490.84 km) |
| Oklahoma City to Kiato | 6,084.10 mi (9,791.42 km) |
| Oklahoma City to Kifisia | 6,121.14 mi (9,851.03 km) |
| Oklahoma City to Kilkis | 5,942.62 mi (9,563.72 km) |
| Oklahoma City to Komotini | 6,029.10 mi (9,702.90 km) |
| Oklahoma City to Korinthos | 6,094.43 mi (9,808.04 km) |
| Oklahoma City to Koropi | 6,132.39 mi (9,869.12 km) |
| Oklahoma City to Korydallos | 6,119.78 mi (9,848.84 km) |
| Oklahoma City to Kos | 6,311.31 mi (10,157.07 km) |
| Oklahoma City to Kozani | 5,935.72 mi (9,552.62 km) |
| Oklahoma City to Lagos | 6,016.78 mi (9,683.07 km) |
