AVIANCA COSTA RICA (LACSA)LR100% on time
Flights LR647 05:00 Mo We Fr Su
live
Direct flights from Quito (UIO) to Buenos Aires (EZE): 11 nonstop departures observed each week across 2 airlines. 92% of the last 12 operated flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 12 tracked flights. The nonstop covers 4,373 km, an estimated 6 hours 6 minutes in the air. Measured by Pro Flight Search from live flight boards at Quito and Buenos Aires. Updated 15 September 2026 at 10:37 UTC.
UIO
Quito
tracking
EZE
Buenos Aires
smooth · +9
4,373 km · ~6h 06m est.
Runs reliable · 2 airlines · 11x weekly · nonstop
92% on time
of the last 12 operated UIO → EZE flights arrived within 15 minutes
Median arrival delay is −18 min. 0 of 12 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−18 minacross the last 12 operated legs
Flight time~6h 06mestimated from route distance
Weekly departures11x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 12
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
AVIANCA COSTA RICA (LACSA)AVIANCA ECUADOR
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysAVIANCA ECUADOR2K86% on time
Flights 2K8395 15:40 daily
History
operated legs · board outcomes09-142K8395arrived+9
09-14LR647arrived−18
09-132K8395arrived−29
09-13LR647arrived−19
09-122K8395arrived−14
09-112K8395arrived−20
09-11LR647arrived+3
09-102K8395arrived+40
09-092K8395arrived−36
09-09LR647arrived−31
09-082K8395arrived−16
09-07LR647arrived−20
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at UIO: 51% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Quito to Buenos Aires route actually runs
Pro Flight Search records official board updates for nonstop UIO to EZE flights through the day: 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.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Quito (UIO) to Buenos Aires (EZE) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/UIO-EZE
UIO to EZE questions
Is UIO–EZE running on time right now?
Smooth skies ahead. The arrival side at EZE is the weaker end, route health score 86/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from UIO to EZE?
Great-circle distance is 4,373 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 339–405 min gate-to-gate on this route.
How often does UIO–EZE fly?
2 carriers operate this route, around 11 flights a week between them. Compare carrier days and times in the airline list above.
What does the route health score measure?
A blend of departure-side delay at UIO and arrival-side delay at EZE, 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.
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