Flight Reliability
NK 3905 · Spirit Airlines
San Juan → Tampa (SJU–TPA)
3
Bring Snacks
WanderNerd Reliability Score
- 56%
- Arrive within 15 minutes
- 19 min
- Average arrival delay
- 14.0%
- Cancelled
- 14 min
- Median arrival delay
Based on 50 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
NK 3905 departing between 6–9 AM arrived on time 88% of the time, versus 35% between 6–9 PM.
Well behind the SJU–TPA route.
NK 3905 arrived on time 56% of the time, versus 78% across the SJU–TPA route.
Well behind the Spirit Airlines network.
NK 3905 arrived on time 56% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon—(7 flights)
- Tue—(6 flights)
- Wed—(5 flights)
- Thu—(7 flights)
- Fri—(7 flights)
- Sat—(5 flights)
- Sun—(6 flights)
- 6–9 AM88%(17 flights)
- 6–9 PM35%(26 flights)
- Departures on time
- 49%
- Diverted
- 0%
- Flights flown
- 43
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 50 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.