Flight OddsUA1301 BOS → ORD
United Airlines · Boston, MA to Chicago, IL · 61 flights observed, 2025-09-25 to 2025-12-01 · 867 mi
UA1301 covers more than one route in the data window — the stats below are for BOS → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
+8 min
90th percentile
+124 min
Cancellation rate
3%
How often is UA1301 on time?
Across 61 flights on BOS → ORD from 2025-09-25 to 2025-12-01, UA1301 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +124 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 | 38 | 64% |
| 16-30 min | 7 | 12% |
| 31-60 min | 4 | 7% |
| 61-120 min | 4 | 7% |
| 2+ hrs | 6 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 67% | +42 min |
| 2025-10 | 30 | 67% | +28 min |
| 2025-11 | 22 | 64% | +33 min |
| 2025-12 | 1 | 0% | +117 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 40% |
| Tue | 8 | 75% |
| Wed | 9 | 67% |
| Thu | 9 | 67% |
| Fri | 8 | 75% |
| Sat | 5 | 80% |
| Sun | 10 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…