Route
SAN → HOU
San Diego International Airport William P. Hobby Airport
Alerts at SAN and HOU
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
How punctual is this route?
- On-time arrivals
- 69.6%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 49 min
- Flights arriving 15+ minutes late
- Flights tracked
- 985
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 11%
- Security 1%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.0% | 60 |
| October 2025 | 71.3% | 87 |
| November 2025 | 75.9% | 86 |
| December 2025 | 78.9% | 91 |
| January 2026 | 80.6% | 72 |
| February 2026 | 80.0% | 71 |
| March 2026 | 54.2% | 83 |
| April 2026 | 78.8% | 85 |
| May 2026 | 56.3% | 87 |
| June 2026 | 61.2% | 86 |
| July 2026 | 61.4% | 89 |
| August 2026 | 56.8% | 88 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 985 | 69.6% | 0.4% | 49 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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WN4675
47% late · 60 flights
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WN1798
51% late · 57 flights
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WN342
24% late · 50 flights
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WN4078
39% late · 49 flights
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WN3198
15% late · 47 flights
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WN1158
9% late · 46 flights
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WN2471
34% late · 42 flights
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WN4225
38% late · 39 flights
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WN3212
56% late · 36 flights
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WN4359
26% late · 34 flights
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WN4076
28% late · 32 flights
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WN2912
6% late · 31 flights
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WN1894
29% late · 28 flights
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WN4360
54% late · 28 flights
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WN2034
4% late · 27 flights
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WN3008
41% late · 27 flights
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WN853
12% late · 26 flights
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WN1515
44% late · 25 flights
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WN3395
21% late · 25 flights
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WN1761
13% late · 24 flights
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WN3424
71% late · 24 flights
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WN1901
0% late · 23 flights
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WN1222
55% late · 20 flights
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