Direct flights from Posadas (PSS) to Buenos Aires (AEP): 7 nonstop departures observed each week across 1 airline. 84% of the last 19 operated flights arrived within 15 minutes of schedule. The median arrival is 3 minutes early. 2 of the 19 tracked flights were cancelled. The nonstop covers 831 km, an estimated 1 hour 34 minutes in the air. Measured by Pro Flight Search from live flight boards at Posadas and Buenos Aires. Updated 20 August 2026 at 00:27 UTC.
PSSPosadastracking
AEPBuenos Airessmooth · +0
831 km · ~1h 34m est.
dep bank 12:15–23:257x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
84% on time
of the last 19 operated PSS → AEP flights arrived within 15 minutes
How the Posadas to Buenos Aires route actually runs
Pro Flight Search tracks every published board update for nonstop PSS to AEP flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from PSS to AEP?
Great-circle distance is 831 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 89–101 min gate-to-gate on this route.
How often does PSS–AEP fly?
AEROLINEAS ARGENTINAS runs the route with about 19 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at PSS and arrival-side delay at AEP, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.