Airport–Rafina service reported to run approximately 04:35–22:20 daily, per a secondary source — not independently confirmed against the operator's own timetable.
Finding it: The KTEL Attikis bus stop/hub at the airport, not the airport's own general contact info.
Worth knowing before you rely on this: Could not reach ktelattikis.gr directly (certificate error) to confirm from the primary source. Exits 2-3 is well corroborated as the KTEL stop, explicitly distinct from Exits 4-5 used by the separate OASA X93/X95/X96/X97 airport express buses — do not conflate the two operators.
Checked 13 August 2026
Location
Positioned to within a couple of hundred metres — the right corner of town