| Flensburg City Anniversary in 2025 | 06/28/2025 |
| Flensburg City Anniversary in 2026 | 06/28/2026 |
| Flensburg City Anniversary in 2027 | 06/28/2027 |
| Flensburg City Anniversary in 2028 | 06/28/2028 |
| Flensburg City Anniversary in 2029 | 06/28/2029 |
| Flensburg City Anniversary in 2030 | 06/28/2030 |
| Flensburg City Anniversary in 2031 | 06/28/2031 |
| Flensburg City Anniversary in 2032 | 06/28/2032 |
| Flensburg City Anniversary in 2033 | 06/28/2033 |
| Flensburg City Anniversary in 2034 | 06/28/2034 |
| Flensburg City Anniversary in 2035 | 06/28/2035 |
| Flensburg City Anniversary in 2036 | 06/28/2036 |
| Flensburg City Anniversary in 2037 | 06/28/2037 |
| Flensburg City Anniversary in 2038 | 06/28/2038 |
| Flensburg City Anniversary in 2039 | 06/28/2039 |
| Flensburg City Anniversary in 2040 | 06/28/2040 |
| Flensburg City Anniversary in 2041 | 06/28/2041 |
| Flensburg City Anniversary in 2042 | 06/28/2042 |
| Flensburg City Anniversary in 2043 | 06/28/2043 |
| Flensburg City Anniversary in 2044 | 06/28/2044 |
| Flensburg City Anniversary in 2045 | 06/28/2045 |
| Flensburg City Anniversary in 2046 | 06/28/2046 |
| Flensburg City Anniversary in 2047 | 06/28/2047 |
| Flensburg City Anniversary in 2048 | 06/28/2048 |
| Flensburg City Anniversary in 2049 | 06/28/2049 |
| Flensburg City Anniversary in 2050 | 06/28/2050 |
