Flight OddsSAN → ORD United Airlines
United Airlines · San Diego, CA to Chicago, IL · 1,672 flights, 2025-07-01 to 2026-06-30 · aggregated across 13 flight numbers
On-time arrival
83%
Median delay
-8 min
90th percentile
+32 min
Cancellation rate
1%
How on-time is United Airlines from SAN to ORD?
Across every United Airlines flight number on SAN → ORD (1,672 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +32 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,364 | 83% |
| 16-30 min | 112 | 7% |
| 31-60 min | 78 | 5% |
| 61-120 min | 46 | 3% |
| 2+ hrs | 47 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 150 | 78% | +5 min |
| 2025-08 | 148 | 81% | +8 min |
| 2025-09 | 141 | 86% | -3 min |
| 2025-10 | 155 | 86% | -4 min |
| 2025-11 | 140 | 84% | +6 min |
| 2025-12 | 138 | 83% | +2 min |
| 2026-01 | 116 | 78% | +15 min |
| 2026-02 | 98 | 90% | +3 min |
| 2026-03 | 135 | 76% | +13 min |
| 2026-04 | 136 | 85% | +6 min |
| 2026-05 | 147 | 86% | -4 min |
| 2026-06 | 143 | 83% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 242 | 83% |
| Tue | 227 | 88% |
| Wed | 223 | 85% |
| Thu | 242 | 82% |
| Fri | 246 | 80% |
| Sat | 222 | 86% |
| Sun | 245 | 77% |
UA flight numbers on SAN → ORD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…