Flight OddsUA543 ORD → SFO
United Airlines · Chicago, IL to San Francisco, CA · 118 flights observed, 2026-03-05 to 2026-06-30 · 1,846 mi
UA543 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
65%
Median delay
+7 min
90th percentile
+84 min
Cancellation rate
1%
How often is UA543 on time?
Across 118 flights on ORD → SFO from 2026-03-05 to 2026-06-30, UA543 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +84 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 76 | 65% |
| 16-30 min | 17 | 15% |
| 31-60 min | 10 | 9% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 10 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 27 | 85% | +7 min |
| 2026-04 | 29 | 59% | +32 min |
| 2026-05 | 31 | 55% | +36 min |
| 2026-06 | 30 | 63% | +22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 35% |
| Tue | 17 | 76% |
| Wed | 16 | 50% |
| Thu | 16 | 75% |
| Fri | 17 | 47% |
| Sat | 17 | 82% |
| Sun | 17 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…