Houston (HOU) to Dallas (DAL): On-Time Performance
Data through July 2026
The calendar drives reliability on HOU–DAL. January 2026 flights landed on schedule 92% of the time, but June 2026 dropped to 68% — a gap of 24 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 73%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 2.3%
- Flights/day
- 11
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 239 mi
Monthly on-time trend
Best time to fly from HOU to DAL
Aim for departures around 6 a.m. (95% on-time); avoid 10 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 14 min |
| Tuesdaybest | 84% | 11 min |
| Wednesday | 83% | 12 min |
| Thursday | 80% | 12 min |
| Friday | 82% | 11 min |
| Saturday | 81% | 13 min |
| Sunday | 75% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft39%
- Airline operations24%
- National airspace system30%
- Weather7%
Frequently asked questions
- How often are flights from HOU to DAL delayed?
- 19% of HOU–DAL 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 12 minutes.
- What is the best time of day to fly from HOU to DAL?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 10 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from HOU to DAL?
- The scheduled HOU–DAL flight time averages 1h 9m over 239 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are HOU to DAL flights cancelled?
- 2.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from HOU to DAL?
- June 2026 was the roughest month in this dataset, with only 68% of arrivals on time. The best was January 2026 at 92%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 8,533 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.