Route Reliability
San Diego → Houston
SAN–HOU · 1,313 miles · San Diego International Airport to William P. Hobby Airport
- 73%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.4%
- Cancelled
- 957
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 73% of the time across 957 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SAN–HOU flights departing between 6–9 AM arrived on time 91% of the time, versus 58% between 6–9 PM.
Friday is doing you no favors.
SAN–HOU flights arrived on time 88% of the time on Saturdays and just 64% on Fridays. That gap is worth planning around.
Recent months have been rougher.
SAN–HOU flights arrived on time 66% of the time over the last three months in the data, compared with 80% in the three months before that.
Flights on this route
The breakdown
- Mon71%(143 flights)
- Tue83%(137 flights)
- Wed73%(137 flights)
- Thu64%(143 flights)
- Fri64%(142 flights)
- Sat88%(109 flights)
- Sun70%(140 flights)
- 6–9 AM91%(328 flights)
- 9 AM–12 PM86%(43 flights)
- 12–3 PM63%(329 flights)
- 3–6 PM83%(30 flights)
- 6–9 PM58%(221 flights)
Jun 65% → May 62% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 65% | 81 |
| July 2025 | 65% | 88 |
| August 2025 | 75% | 65 |
| September 2025 | 90% | 60 |
| October 2025 | 71% | 87 |
| November 2025 | 77% | 83 |
| December 2025 | 79% | 90 |
| January 2026 | 81% | 72 |
| February 2026 | 80% | 70 |
| March 2026 | 55% | 83 |
| April 2026 | 81% | 85 |
| May 2026 | 62% | 87 |
Same trip, other airports
Keep nerding
Based on 957 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.