Flight Reliability
NK 2589 · Spirit Airlines
Houston → Detroit (IAH–DTW)
89
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 36 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
NK 2589 departing between 9 AM–12 PM arrived on time 92% of the time, versus 62% between 3–6 PM.
A bit ahead of the Spirit Airlines network.
NK 2589 arrived on time 81% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(6 flights)
- Wed—(5 flights)
- Thu—(5 flights)
- Fri—(5 flights)
- Sat—(3 flights)
- Sun—(6 flights)
- 6–9 AM91%(11 flights)
- 9 AM–12 PM92%(12 flights)
- 3–6 PM62%(13 flights)
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 36
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 36 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.