Flight Reliability
NK 254 · Spirit Airlines
Newark → Raleigh–Durham (EWR–RDU)85% of its flights flew this route. The rest (DTW–IAH) are included in these numbers.
- 51%
- Arrive within 15 minutes
- 33 min
- Average arrival delay
- 10.9%
- Cancelled
- 15 min
- Median arrival delay
Based on 101 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
NK 254 arrived on time 77% of the time on Mondays and just 27% on Saturdays. That gap is worth planning around.
Well behind the EWR–RDU route.
NK 254 arrived on time 51% of the time, versus 76% across the EWR–RDU route.
Well behind the Spirit Airlines network.
NK 254 arrived on time 51% of the time, versus 74% across the Spirit Airlines network.
Keep a backup plan handy.
NK 254 was cancelled 10.9% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon77%(13 flights)
- Tue58%(12 flights)
- Wed54%(13 flights)
- Thu50%(14 flights)
- Fri40%(15 flights)
- Sat27%(11 flights)
- Sun50%(12 flights)
- 12–3 PM—(4 flights)
- 3–6 PM49%(72 flights)
- 9 PM–12 AM50%(14 flights)
Jan 67% → Apr 40% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 67% | 12 |
| February 2026 | 74% | 23 |
| March 2026 | 37% | 30 |
| April 2026 | 40% | 25 |
- Departures on time
- 50%
- Diverted
- 0%
- Flights flown
- 90
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 101 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.