Flight OddsUA2248 ONT → SFO
United Airlines · Ontario, CA to San Francisco, CA · 29 flights observed, 2026-03-29 to 2026-04-29 · 363 mi
UA2248 covers more than one route in the data window — the stats below are for ONT → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
34%
Median delay
+28 min
90th percentile
+54 min
Cancellation rate
0%
How often is UA2248 on time?
Across 29 flights on ONT → SFO from 2026-03-29 to 2026-04-29, UA2248 arrived within 15 minutes of schedule 34% of the time. The median arrival delay was +28 min, and the worst 10% of flights arrived +54 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 10 | 34% |
| 16-30 min | 6 | 21% |
| 31-60 min | 11 | 38% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 67% | +12 min |
| 2026-04 | 26 | 31% | +43 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 0% |
| Tue | 5 | 80% |
| Wed | 5 | 20% |
| Thu | 4 | 25% |
| Fri | 4 | 0% |
| Sat | 1 | 100% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…