Flight OddsUA737 SFO → ORD
United Airlines · San Francisco, CA to Chicago, IL · 35 flights observed, 2026-05-21 to 2026-06-24 · 1,846 mi
UA737 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
56%
Median delay
+14 min
90th percentile
+141 min
Cancellation rate
3%
How often is UA737 on time?
Across 35 flights on SFO → ORD from 2026-05-21 to 2026-06-24, UA737 arrived within 15 minutes of schedule 56% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +141 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 19 | 56% |
| 16-30 min | 2 | 6% |
| 31-60 min | 4 | 12% |
| 61-120 min | 5 | 15% |
| 2+ hrs | 4 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 64% | +37 min |
| 2026-06 | 23 | 52% | +46 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 80% |
| Wed | 5 | 20% |
| Thu | 5 | 20% |
| Fri | 5 | 60% |
| Sat | 5 | 40% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…