Flight Reliability
F9 2439 · Frontier Airlines
Raleigh–Durham → Denver (RDU–DEN)
83
Pretty Reliable
WanderNerd Reliability Score
- 87%
- Arrive within 15 minutes
- 10 min early
- Average arrival delay
- 3.1%
- Cancelled
- 16 min early
- Median arrival delay
Based on 32 historical flights. Data through May 2026.
What the data says
Better than the RDU–DEN route average.
F9 2439 arrived on time 87% of the time, versus 79% across the RDU–DEN route.
Better than the Frontier Airlines network average.
F9 2439 arrived on time 87% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu—(3 flights)
- Fri—(6 flights)
- Sat—(9 flights)
- Sun—(8 flights)
- 12–3 PM—(3 flights)
- 3–6 PM—(9 flights)
- 6–9 PM—(2 flights)
- 9 PM–12 AM82%(17 flights)
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 31
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 32 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.