Is a 2½ hr layover in Athens long enough?

ATH · Athens International Eleftherios Venizelos · Athens, Greece
Probably Enough
More than enough time for any connection type, even with significant inbound delays.
Concourses
3
Max Transit
20m
Avg. Security
15m
Primary Hub
Aegean Airlines
Schengen → Schengen
45min
Schengen → Non-Schengen
60min
Non-Schengen → Schengen
60min
Non-Schengen → Non-Schengen
50min
AD PLACEMENT — CONTEXTUAL
Aegean's own connections are usually smooth since the airline blocks minimum times and often holds gates for its own delayed inbound flights.
If connecting between Schengen and non-Schengen zones, budget extra time for passport control queues, which can back up during the June–September tourist surge.
Signage is clear and the terminal is compact, so even first-time visitors rarely get lost, but summer crowds at security can slow things down.
Non-Schengen arrivals continuing to another non-Schengen or Schengen flight may need to clear a transfer security checkpoint, so don't assume a screening-free walk.
Duty-free and lounges cluster in the shared central area, making it easy to grab something during a longer layover regardless of zone.
12a6a12p6p12a
Low risk
Moderate
High risk
Tight connections are safer outside peak hours. Morning rush (6–9a), midday (11a–2p), and evening (4–8p) are highest risk.
ATH is a single-level terminal with all gates reachable on foot in under 20 minutes; a shuttle bus is occasionally used for remote aircraft stands, especially during high summer traffic. Passengers moving between the Schengen and non-Schengen zones pass through passport control, and non-Schengen arrivals connecting onward often clear a transfer security check before re-entering the departure area.
Is 2½ hours enough for a layover at ATH?

More than enough time for any connection type, even with significant inbound delays.

AD PLACEMENT — BEFORE FOOTER