How reliable is Mercedita International Airport?
Flights from PSE departed within 15 minutes of schedule in 81% of 4,211 flights in official BTS history — and weather is calmest in Jan. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at PSE looks like
On-time departures
across 4,211 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Ponce
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 100/100 favorability
Roughest month
Most disruptive — thunderstorms, low visibility & fog · 98/100 favorability
The read on PSE
What the numbers say about flying through Mercedita International Airport
Across official performance history, flights from Ponce left within 15 minutes of schedule about 81% of the time over 4,211 flights. That's a solid, better-than-average operational record. Pair it with a moderate cancellation rate of 2.5%. When a departure does run late, the typical delay is around 9 minutes.
On weather, Ponce is an unusually calm-weather airport year-round. January is the calmest stretch for flying, scoring 100 out of 100 for favorable conditions, while August is the most disruptive at 98, driven mainly by thunderstorms and low visibility & fog. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Ponce, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about PSE
- How reliable is Mercedita International Airport (PSE)?
- Flights from Ponce left within 15 minutes of schedule roughly 81% of the time across 4,211 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 2.5%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from PSE for good weather?
- January has the calmest flying weather at Mercedita International Airport. August is the most disruptive, mainly from thunderstorms and low visibility & fog.
Planning a trip through Ponce?
Score real flights to and from PSE on reliability, weather, and connection safety — not just price.