QUICK ANSWER
The airport says both lines connect with central Munich and quotes around 40 minutes to the central station.
01
Route matters after the airport
S1 and S8 approach the city from different directions, so the best choice depends on your final stop.
02
Disruption changes the answer
Check current MVV/airport information before travel because engineering work can change times.
✓
Sources and verification
Time-sensitive airport, airline, visa, security and transport details should always be confirmed with the relevant official source before travel.