Airports › San Diego (SAN) › May 2026
Airport month · May 2026
San Diego International in May 2026
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In May 2026, reporting carriers scheduled 8,947 domestic departures from San Diego International (SAN). 73.8% left less than 15 minutes late and 76.0% reached their destination on time; 0.7% were cancelled.
Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so SAN departures were 3.3 points below the national departure figure.
A year earlier, in May 2025, the airport had 8,455 departures with 79.2% leaving on time: a change of −5.4 points, with flights up 6%.
Flights arriving at SAN that month were on time 73.0% of the time (8,946 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, national aviation system 28% and air carrier 21%.
- On time 76.0%
- Arrived 15+ minutes late 22.9%
- Cancelled 0.7%
- Diverted 0.4%
May 2026 against a year earlier, the airport's year and the nation
| Measure | May 2026 | May 2025 | SAN, 12 months to Jul 2026 | All reported flights, May 2026 |
|---|---|---|---|---|
| Departed on time | 73.8% | 79.2% | 73.5% | 77.1% |
| Arrived on time | 76.0% | 77.6% | 76.1% | 77.6% |
| Cancelled | 0.7% | 0.6% | 1.3% | 0.9% |
| Average departure delay (late minutes only) | 15.0 min | 14.4 min | 16.6 min | 16.0 min |
| Scheduled departures a day | 298 | 282 | 275 | 20,391 |
| Scheduled departures | 8,947 | 8,455 | 100,196 | 611,735 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 3,387 | 38% | 68.0% | 10.6 min | 0.3% |
| OO SkyWest Airlines | 1,450 | 16% | 75.2% | 4.6 min | 1.0% |
| AS Alaska Airlines | 1,179 | 13% | 83.7% | -3.7 min | 0.7% |
| UA United Airlines | 933 | 10% | 77.9% | 2.8 min | 0.4% |
| AA American Airlines | 843 | 9% | 83.0% | -1.2 min | 1.2% |
| DL Delta Air Lines | 832 | 9% | 89.3% | -4.9 min | 1.1% |
| F9 Frontier Airlines | 179 | 2% | 69.3% | 18.6 min | 1.1% |
| B6 JetBlue Airways | 144 | 2% | 88.9% | -15.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| SAN–PHX | San Diego to Phoenix | 554 | 75.5% | 5.8 min | 0.9% |
| SAN–SFO | San Diego to San Francisco | 540 | 41.3% | 34.1 min | 0.9% |
| SAN–DEN | San Diego to Denver | 515 | 81.9% | 0.5 min | 0.4% |
| SAN–SMF | San Diego to Sacramento | 466 | 74.0% | 6.4 min | 0.4% |
| SAN–SJC | San Diego to San Jose | 431 | 71.7% | 5.9 min | 0.2% |
| SAN–SEA | San Diego to Seattle | 428 | 82.2% | -2.7 min | 1.9% |
| SAN–LAS | San Diego to Las Vegas | 403 | 67.2% | 13.7 min | 1.0% |
| SAN–DFW | San Diego to Dallas/Fort Worth | 374 | 75.4% | 5.3 min | 2.1% |
| SAN–ORD | San Diego to Chicago | 364 | 82.4% | -2.5 min | 0.5% |
| SAN–OAK | San Diego to Oakland | 336 | 68.2% | 9.7 min | 0.3% |
| SAN–SLC | San Diego to Salt Lake City | 240 | 82.5% | -1.0 min | 0.8% |
| SAN–AUS | San Diego to Austin | 236 | 61.9% | 14.3 min | 0.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left SAN on time in May 2026?
73.8% of 8,947 scheduled domestic departures left less than 15 minutes late, and 76.0% reached their destination on time. The national figures that month were 77.1% and 77.6%.
How does that compare with a year earlier?
In May 2025, 79.2% of 8,455 departures left on time and 0.6% were cancelled, against 73.8% and 0.7% in May 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SAN · methodology · corrections.