About 1 in 4 F9 2631 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (27%); 0.7% were cancelled. The typical flight landed 8 minutes early.
F9 2631: DFW → DEN
Scheduled to leave Dallas at 6:58 p.m. local time. Over the past year it arrived on time 73% of the time (276 flights), better than other F9 flights on the route at that hour (60%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 47 | 62% |
| Tuesday | 28 | 79% |
| Wednesday | 37 | 65% |
| Thursday | 42 | 81% |
| Friday | 46 | 74% |
| Saturday | 39 | 72% |
| Sunday | 37 | 84% |
Why it was late
All flights DFW → DEN · Connecting off F9 2631? Check the risk
Questions
How often is F9 2631 from DFW to DEN late?
Frontier Airlines 2631 from Dallas/Fort Worth, TX to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 27% of 276 scheduled flights between September 2025 and August 2026. 0.7% 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.