Villingen, Schwenningen, Rottweil, Singen: take the autobahn A81, A98 or highway B31 towards Friedrichshafen -> follow the airport traffic signs.
Ulm, Biberach, Bad Waldsee: take the highway B30 towards Friedrichshafen -> follow the airport traffic signs.
Landsberg, Mindelheim, Memmingen, Leutkirch, Wangen: take the autobahn A96, exit at Sigmarszell, follow the highway B31 towards Friedrichshafen -> follow the airport traffic signs.
Kaufbeuren: take the highway B12, enter the autobahn A7, stay until interchange Allgaeu, exit to A980, take the highway B12, change to B31 towards Friedrichshafen -> follow the airport traffic signs.
Fuessen: take the autobahn A7, stay until interchange Allgaeu, exit to A980, take the highway B12, change to B31 towards Friedrichshafen -> follow the airport traffic signs.
Kempten: take the highway B12, change to B31 towards Friedrichshafen -> follow the airport traffic signs.
Take the autobahn A14(Rheintalautobahn, Pfändertunnel)/A96, exit at Sigmarszell, enter the highway B31, towards Friedrichshafen -> follow the airport traffic signs.
take the autobahn A13 (Rheintalautobahn), cross the border at Diepoldsau, follow the autobahn A14, exit at Sigmarszell, enter the highway B31, towards Friedrichshafen -> follow the airport traffic signs.
Take the ferry via Konstanz to Meersburg, enter the highway B31 towards Friedrichshafen -> follow the airport traffic signs.
Alternative: take the ferry Romanshorn - Friedrichshafen -> follow the airport traffic signs.