I was wondering about how much time it would take for four people to go through customs at the Munich airport.
I think you mean passport control. Customs is usually a no brainer, you just go through the green "nothing to declare" line/pathway & walk through. I'm not familiar with Munich airport so I'll let someone who is give you advice about passport control.
We went through Munich customs/passport control in September and it took about 45 minutes in total with four people. This was in the middle of the night, however.
-- Mike Beebe
We flew into Munich in the Spring. It was less than an hour to get through. There are lots of variables.
- We deplaned remotely and caught a bus to the main terminal. Our fairly small Boeing 767 was less than full and still took 2 buses. A larger plane???
- Border control was slow until they added another agent.
-Our luggage was near the last to come on the conveyor belt
-Customs was a wave through as mentioned