Flight OddsUA1777 SFO → ORD
United Airlines · San Francisco, CA to Chicago, IL · 65 flights observed, 2026-03-29 to 2026-06-30 · 1,846 mi
UA1777 covers more than one route in the data window — the stats below are for SFO → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
45%
Median delay
+19 min
90th percentile
+68 min
Cancellation rate
0%
How often is UA1777 on time?
Across 65 flights on SFO → ORD from 2026-03-29 to 2026-06-30, UA1777 arrived within 15 minutes of schedule 45% of the time. The median arrival delay was +19 min, and the worst 10% of flights arrived +68 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 | 29 | 45% |
| 16-30 min | 13 | 20% |
| 31-60 min | 15 | 23% |
| 61-120 min | 4 | 6% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 0% | +41 min |
| 2026-04 | 1 | 0% | +17 min |
| 2026-05 | 31 | 48% | +31 min |
| 2026-06 | 30 | 47% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 30% |
| Tue | 10 | 50% |
| Wed | 8 | 38% |
| Thu | 9 | 44% |
| Fri | 9 | 22% |
| Sat | 9 | 44% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…