Flight OddsAS2121 SFO → SAN
Alaska Airlines · San Francisco, CA to San Diego, CA · 27 flights observed, 2026-05-14 to 2026-06-09 · 447 mi
AS2121 covers more than one route in the data window — the stats below are for SFO → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
65%
Median delay
0 min
90th percentile
+64 min
Cancellation rate
4%
How often is AS2121 on time?
Across 27 flights on SFO → SAN from 2026-05-14 to 2026-06-09, AS2121 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +64 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 65% |
| 16-30 min | 3 | 12% |
| 31-60 min | 3 | 12% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 17 | 59% | +20 min |
| 2026-06 | 9 | 78% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 3 | 67% |
| Wed | 3 | 100% |
| Thu | 4 | 25% |
| Fri | 4 | 50% |
| Sat | 4 | 75% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…