Short answer: Sometimes — FitsAir has recorded excellent on‑time performance (even a top ranking for July 2023), but passenger reports and recent reviews also show delays and cancellations. Check the specific flight’s real‑time status before you travel.

What I’m basing that on

• Aviation analytics firm Cirium reported FitsAir at the top of its punctuality table for July 2023 (100% on‑time for that month). (eyeviewsl.com)
• Independent traveler reviews and forum posts in subsequent years show a mix of experiences, including multi‑hour delays, cancellations and complaints about customer service. That indicates performance can vary by route and time. (TripAdvisor.es)

Practical advice

• Before you book or travel, check the live status for the exact flight (airline website, airport arrivals/departures, or a flight‑tracking app).
• If punctuality is critical, consider routing options on other carriers for that trip or allow extra connection/ground time.

If you want, tell me the route and date you’re considering and I can look up recent on‑time stats or the current status for that flight.