About 1 in 5 F9 4386 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.2% were cancelled. The typical flight landed 11 minutes early.
F9 4386: DEN → CID
Scheduled to leave Denver at 4:35 p.m. local time. Over the past year it arrived on time 82% of the time (164 flights), in line with other F9 flights on the route at that hour (79%). Last seen in the data Aug 30, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 27 | 78% |
| Tuesday | 15 | — |
| Wednesday | 2 | — |
| Thursday | 41 | 80% |
| Friday | 24 | 79% |
| Saturday | 14 | — |
| Sunday | 41 | 90% |
Why it was late
All flights DEN → CID · Connecting off F9 4386? Check the risk
Questions
How often is F9 4386 from DEN to CID late?
Frontier Airlines 4386 from Denver, CO to Cedar Rapids/Iowa City, IA arrived 15 or more minutes late, was diverted or was cancelled on 18% of 164 scheduled flights between September 2025 and August 2026. 1.2% 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.