No way I"d drive. Six people means six "bladder schedules," as well as food stops, gas, driver switch, overnight in hotel rooms. I'd definitely fly. IN the boarding area, stay away from other people. Bring sanitizing wipes for the arm rests, seatbelt buckles, tray tables, etc. on the plane. Skip the water and snacks, so you can keep your masks on all the time. Maybe buy the early bird check in for 4 or all 6 of you, so you can board as close to the beginning as possible. Go all the way to the back of the plane. Pick a row where you can seat all six of you across; 3 on one side of the aisle and 3 on the other. By sitting all the way in the back you won't be being passed by passengers going further to the back of the plane, and won't have to stand "in line" to deplane- you can simply be the last people to get off the plane.