San Jose (SJC) to Dallas (DAL): On-Time Performance
Data through July 2026
The calendar drives reliability on SJC–DAL. April 2026 flights landed on schedule 100% of the time, but June 2026 dropped to 63% — a gap of 37 points. Across the full period the route averages 84% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 72%), which matters most in the rough months.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 1.2
- last 12 months
- Duration
- 3h 25m
- scheduled
- Distance
- 1,450 mi
Monthly on-time trend
Best time to fly from SJC to DAL
Aim for departures around 6 a.m. (93% on-time); avoid 5 p.m. departures (72%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 11 min |
| Tuesdaybest | 89% | 10 min |
| Wednesday | 89% | 7 min |
| Thursday | 80% | 12 min |
| Friday | 83% | 8 min |
| Saturday | 88% | 6 min |
| Sunday | 84% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations33%
- National airspace system25%
- Security1%
Frequently asked questions
- How often are flights from SJC to DAL delayed?
- 16% of SJC–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 9 minutes.
- What is the best time of day to fly from SJC to DAL?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 5 p.m. have the worst (72%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SJC to DAL?
- The scheduled SJC–DAL flight time averages 3h 25m over 1,450 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are SJC to DAL flights cancelled?
- 0.7% 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 SJC to DAL?
- June 2026 was the roughest month in this dataset, with only 63% of arrivals on time. The best was April 2026 at 100%. If your dates are flexible, that 37-point gap is worth planning around.
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Based on 1,083 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.