Route
SAT → SAN
San Antonio International Airport San Diego International Airport
Alerts at SAT and SAN
-
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
- 77.2%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 611
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 21%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.8% | 56 |
| October 2025 | 80.7% | 57 |
| November 2025 | 85.2% | 56 |
| December 2025 | 74.6% | 60 |
| January 2026 | 61.1% | 19 |
| February 2026 | 94.7% | 19 |
| March 2026 | 88.5% | 52 |
| April 2026 | 78.6% | 56 |
| May 2026 | 75.4% | 57 |
| June 2026 | 66.7% | 60 |
| July 2026 | 65.6% | 61 |
| August 2026 | 77.6% | 58 |
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 | 611 | 77.2% | 0.3% | 60 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN4254
35% late · 59 flights
-
WN2112
7% late · 58 flights
-
WN3545
23% late · 52 flights
-
WN1570
16% late · 39 flights
-
WN1402
54% late · 35 flights
-
WN4379
3% late · 33 flights
-
WN4173
55% late · 31 flights
-
WN2176
10% late · 30 flights
-
WN349
21% late · 28 flights
-
WN4143
4% late · 28 flights
-
WN1899
8% late · 25 flights
-
WN4485
46% late · 24 flights
-
WN4418
9% late · 23 flights
Reviews
No reviews yet. Be the first to review this route.