Flight Reliability
F9 1597 · Frontier Airlines
CRP → Denver (CRP–DEN)
84
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 1.5%
- Cancelled
- 6 min early
- Median arrival delay
Based on 68 historical flights. Data through May 2026.
What the data says
Thursday comes out ahead.
A small edge: 88% on time on Thursdays against 82% on Sundays.
Better than the Frontier Airlines network average.
F9 1597 arrived on time 85% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(0 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu88%(34 flights)
- Fri—(0 flights)
- Sat—(0 flights)
- Sun82%(33 flights)
- 3–6 PM84%(45 flights)
- 6–9 PM86%(22 flights)
- Departures on time
- 82%
- Diverted
- 0%
- Flights flown
- 67
- Months covered
- 8
Keep nerding
Based on 68 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.