Short answer: generally yes — but with caveats.

Why I say that

• FitsAir is a small, Sri Lanka–based carrier (formerly ExpoAir) that launched regular international passenger services in late 2022 and advertises compliance with Sri Lanka Civil Aviation Authority audits and safety procedures. (fitsair.com)
• Independent timing/analytics firms have flagged very good punctuality at times (Cirium named FitsAir Asia’s most on‑time carrier for July 2023), though on‑time performance varies by route and period. Check performance for the specific flight you plan to fly. (fitsair.com)
• I found no record in public IATA/IOSA material showing FitsAir as an IOSA‑registered airline (IOSA registration is a commonly used independent benchmark). FitsAir does state it is audited by the Sri Lanka CAA. If IOSA membership matters to you, you should verify directly via IATA Connect or ask the airline for its latest audit status. (iata.org)
• There are some older, non‑fatal incidents in the ExpoAir/FitsAir historical record (e.g., a 2004 Il‑18 cargo accident that was written off but without fatalities), but I did not find recent fatal accidents involving its current A320 operations. (asn.flightsafety.org)
• FitsAir has been investing in operations and training partnerships (e.g., pilot training content and flight‑planning/catering approvals), which is a positive sign for operational development. (cpat.com)

Practical guidance

• If you’re booking: check recent on‑time stats for your exact flight number (FlightStats / Cirium), read recent passenger reviews for the route, and keep a longer connection margin if you have tight onward connections. (flightstats.com)
• If regulatory/audit status matters: ask FitsAir for proof of recent safety audits (IOSA/other) or confirm via IATA Connect and confirm the Sri Lanka CAA oversight status. (iata.org)

Bottom line: FitsAir appears to be a legitimate, reasonably punctual small carrier under Sri Lankan regulatory oversight and with no recent major fatal accidents reported for its passenger A320 operations — but because it’s a small, relatively new international operator, reliability can vary by route/date and you may want to verify the specific flight and audit status before traveling. Would you like me to check on-time stats or recent reviews for a particular FitsAir flight or date?