Route
HOU → SAN
William P. Hobby Airport San Diego International Airport
Alerts at HOU and SAN
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Read the story →
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
- 73.9%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 985
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 39%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 22%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.1% | 60 |
| October 2025 | 77.9% | 87 |
| November 2025 | 81.5% | 86 |
| December 2025 | 75.8% | 91 |
| January 2026 | 84.5% | 72 |
| February 2026 | 90.1% | 71 |
| March 2026 | 83.1% | 83 |
| April 2026 | 70.6% | 85 |
| May 2026 | 62.4% | 87 |
| June 2026 | 59.3% | 86 |
| July 2026 | 64.0% | 89 |
| August 2026 | 63.2% | 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 | 73.9% | 0.7% | 50 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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WN2981
25% late · 64 flights
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WN2072
46% late · 61 flights
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WN3824
18% late · 60 flights
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WN2410
39% late · 51 flights
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WN3061
47% late · 49 flights
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WN2555
6% late · 47 flights
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WN2984
23% late · 45 flights
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WN2250
5% late · 44 flights
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WN4486
58% late · 43 flights
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WN2407
10% late · 42 flights
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WN2980
17% late · 42 flights
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WN2182
39% late · 33 flights
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WN3290
9% late · 33 flights
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WN2003
39% late · 28 flights
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WN2285
22% late · 27 flights
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WN1064
14% late · 23 flights
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WN2004
70% late · 20 flights
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