Flight Reliability
F9 1598 · Frontier Airlines
Denver → CRP (DEN–CRP)
100
Nerd Approved
WanderNerd Reliability Score
- 94%
- Arrive within 15 minutes
- 9 min early
- Average arrival delay
- 0%
- Cancelled
- 17 min early
- Median arrival delay
Based on 68 historical flights. Data through May 2026.
What the data says
Thursday has been the better bet.
A small edge: 97% on time on Thursdays against 91% on Sundays.
Well ahead of the Frontier Airlines network.
F9 1598 arrived on time 94% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(0 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu97%(34 flights)
- Fri—(0 flights)
- Sat—(0 flights)
- Sun91%(34 flights)
- 9 AM–12 PM96%(45 flights)
- 12–3 PM—(6 flights)
- 3–6 PM94%(17 flights)
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 68
- 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.