Flight OddsUA542 ORD → SAN
United Airlines · Chicago, IL to San Diego, CA · 56 flights observed, 2025-08-21 to 2025-10-25 · 1,723 mi
UA542 covers more than one route in the data window — the stats below are for ORD → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-3 min
90th percentile
+21 min
Cancellation rate
0%
How often is UA542 on time?
Across 56 flights on ORD → SAN from 2025-08-21 to 2025-10-25, UA542 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +21 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 | 47 | 84% |
| 16-30 min | 7 | 13% |
| 31-60 min | 1 | 2% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 9 | 89% | -7 min |
| 2025-09 | 22 | 86% | +5 min |
| 2025-10 | 25 | 80% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 89% |
| Tue | 4 | 100% |
| Wed | 4 | 100% |
| Thu | 10 | 80% |
| Fri | 10 | 80% |
| Sat | 10 | 80% |
| Sun | 9 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…