Dallas (DAL) to Denver (DEN): On-Time Performance
Data through July 2026
Dallas (DAL) to Denver (DEN) effectively runs on two schedules. In January 2025, 88% of arrivals were on time; in June 2025 that fell to 58% — a 31-point seasonal swing. Across the full period the route averages 73% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 61%), which matters most in the rough months.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 8.2
- last 12 months
- Duration
- 2h 6m
- scheduled
- Distance
- 651 mi
Monthly on-time trend
Best time to fly from DAL to DEN
Aim for departures around 6 a.m. (94% on-time); avoid 5 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 15 min |
| Tuesdaybest | 77% | 16 min |
| Wednesday | 74% | 15 min |
| Thursday | 70% | 19 min |
| Friday | 73% | 16 min |
| Saturday | 75% | 16 min |
| Sunday | 71% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations26%
- National airspace system26%
- Weather6%
Frequently asked questions
- How often are flights from DAL to DEN delayed?
- 27% of DAL–DEN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- What is the best time of day to fly from DAL to DEN?
- Departures around 6 a.m. have the best record (94% on-time), while departures around 5 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DAL to DEN?
- The scheduled DAL–DEN flight time averages 2h 6m over 651 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are DAL to DEN flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DAL to DEN?
- June 2025 was the roughest month in this dataset, with only 58% of arrivals on time. The best was January 2025 at 88%. If your dates are flexible, that 31-point gap is worth planning around.
Explore related pages
More routes from DAL
Other ways to fly to Denver (DEN)
Related guides
Based on 6,481 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.