Flight OddsUA511 ORD → SFO
United Airlines · Chicago, IL to San Francisco, CA · 92 flights observed, 2026-03-05 to 2026-06-30 · 1,846 mi
UA511 covers more than one route in the data window — the stats below are for ORD → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+5 min
90th percentile
+103 min
Cancellation rate
0%
How often is UA511 on time?
Across 92 flights on ORD → SFO from 2026-03-05 to 2026-06-30, UA511 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +103 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 | 55 | 60% |
| 16-30 min | 3 | 3% |
| 31-60 min | 15 | 16% |
| 61-120 min | 14 | 15% |
| 2+ hrs | 5 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 27 | 74% | +21 min |
| 2026-04 | 29 | 55% | +23 min |
| 2026-05 | 9 | 56% | +47 min |
| 2026-06 | 27 | 52% | +37 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 71% |
| Tue | 14 | 64% |
| Wed | 13 | 85% |
| Thu | 14 | 29% |
| Fri | 14 | 43% |
| Sat | 9 | 78% |
| Sun | 14 | 57% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…