Bat migrations have been studied for a long time, but large areas remain poorly explored in this regard. This note reports a record migration distance of the Nathusius' pipistrelle-2486 km from Russia to the French Alps. This distance exceeds the previous record flight from Latvia to Spain by 260 km. Hibernating colonies of Nathusius' pipistrelle are known in the Caucasus. However, our data show that Nathusius' pipistrelle can fly much longer for hibernating.