Route
SAN → BNA
San Diego International Airport Nashville International Airport
Alerts at SAN and BNA
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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
- 72.6%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,107
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 17%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.0% | 77 |
| October 2025 | 77.3% | 88 |
| November 2025 | 83.3% | 85 |
| December 2025 | 76.7% | 91 |
| January 2026 | 79.7% | 72 |
| February 2026 | 84.3% | 71 |
| March 2026 | 68.6% | 103 |
| April 2026 | 79.8% | 100 |
| May 2026 | 61.0% | 101 |
| June 2026 | 62.0% | 110 |
| July 2026 | 59.1% | 115 |
| August 2026 | 65.9% | 94 |
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 | 1,107 | 72.6% | 1.1% | 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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WN3480
5% late · 61 flights
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WN3478
17% late · 60 flights
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WN444
22% late · 60 flights
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WN971
25% late · 59 flights
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WN2130
14% late · 58 flights
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WN4053
2% late · 58 flights
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WN2127
17% late · 53 flights
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WN738
16% late · 50 flights
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WN3021
59% late · 49 flights
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WN178
16% late · 46 flights
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WN4147
84% late · 43 flights
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WN2278
58% late · 33 flights
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WN2961
25% late · 33 flights
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WN2739
59% late · 32 flights
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WN4346
9% late · 32 flights
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WN1070
3% late · 31 flights
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WN3886
3% late · 31 flights
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WN2511
8% late · 28 flights
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WN3479
70% late · 27 flights
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WN1344
23% late · 26 flights
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WN3397
50% late · 24 flights
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WN4348
45% late · 22 flights
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