The incident is the latest in a string of drone sightings across Europe in the last week. The airport, which closed late on Thursday night, reportedly reopened early on Friday morning.
Munich Airport suspended flight operations late on Wednesday night due to "several drone sightings", according to a statement published by the airport.
Flights were grounded from 10:18 pm, the statement said, with 17 flights and nearly 3,000 passengers affected at the time of its release.
The airport reportedly reopened early on Friday morning, several media have reported.
"Late in the evening of October 2, German air traffic control (DFS) restricted flight operations at Munich Airport from 10:18 pm and later suspended them altogether due to several drone sightings," the airport wrote in a statement.
"When a drone is sighted, the safety of travelers is the top priority," it added.
The incident is the latest in a string of drone sightings across Europe in the past week. Airports in Denmark, Norway and Poland similarly suspended flights due to unidentified drone activity.
Airspace violations were also reported in Estonia and Romania, which blamed Russia, who has brushed off the allegations.
This is a developing story and our journalists will provide updates as more news comes in.