About 1 in 6 F9 2550 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (18%); 0.8% were cancelled. The typical flight landed 11 minutes early.
F9 2550: DEN → DFW
Scheduled to leave Denver at 5:05 a.m. local time. Over the past year it arrived on time 82% of the time (246 flights), in line with other F9 flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 41 | 80% |
| Tuesday | 21 | 86% |
| Wednesday | 27 | 81% |
| Thursday | 42 | 86% |
| Friday | 40 | 88% |
| Saturday | 36 | 83% |
| Sunday | 39 | 72% |
Why it was late
All flights DEN → DFW · Connecting off F9 2550? Check the risk
Questions
How often is F9 2550 from DEN to DFW late?
Frontier Airlines 2550 from Denver, CO to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 18% of 246 scheduled flights between September 2025 and August 2026. 0.8% 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.