Flight OddsUA1983 ORD → BOS
United Airlines · Chicago, IL to Boston, MA · 18 flights observed, 2025-09-25 to 2025-10-24 · 867 mi
UA1983 covers more than one route in the data window — the stats below are for ORD → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
17%
Median delay
+62 min
90th percentile
+251 min
Cancellation rate
0%
How often is UA1983 on time?
Across 18 flights on ORD → BOS from 2025-09-25 to 2025-10-24, UA1983 arrived within 15 minutes of schedule 17% of the time. The median arrival delay was +62 min, and the worst 10% of flights arrived +251 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 | 3 | 17% |
| 16-30 min | 1 | 6% |
| 31-60 min | 4 | 22% |
| 61-120 min | 6 | 33% |
| 2+ hrs | 4 | 22% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 4 | 0% | +155 min |
| 2025-10 | 14 | 21% | +91 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 40% |
| Fri | 5 | 0% |
| Sat | No data | — |
| Sun | 4 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…