About 1 in 7 F9 2440 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (14%); 1.0% were cancelled. The typical flight landed 11 minutes early.
F9 2440: DEN → RDU
Scheduled to leave Denver at 6:03 a.m. local time. Over the past year it arrived on time 86% of the time (296 flights), worse than other F9 flights on the route at that hour (92%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 83% |
| Tuesday | 27 | 93% |
| Wednesday | 26 | 92% |
| Thursday | 49 | 88% |
| Friday | 52 | 83% |
| Saturday | 37 | 97% |
| Sunday | 52 | 79% |
Why it was late
All flights DEN → RDU · Connecting off F9 2440? Check the risk
Questions
How often is F9 2440 from DEN to RDU late?
Frontier Airlines 2440 from Denver, CO to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 14% of 296 scheduled flights between September 2025 and August 2026. 1.0% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.