Flight OddsUA1779 ORD → BOS
United Airlines · Chicago, IL to Boston, MA · 174 flights observed, 2025-07-03 to 2026-06-30 · 867 mi
UA1779 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
67%
Median delay
+1 min
90th percentile
+97 min
Cancellation rate
3%
How often is UA1779 on time?
Across 174 flights on ORD → BOS from 2025-07-03 to 2026-06-30, UA1779 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +97 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 | 113 | 67% |
| 16-30 min | 15 | 9% |
| 31-60 min | 18 | 11% |
| 61-120 min | 12 | 7% |
| 2+ hrs | 11 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 15 | 60% | +43 min |
| 2025-08 | 16 | 63% | +18 min |
| 2025-09 | 19 | 63% | +13 min |
| 2025-10 | 28 | 64% | +19 min |
| 2025-11 | 18 | 67% | +22 min |
| 2025-12 | 1 | 0% | +148 min |
| 2026-03 | 2 | 50% | +1 min |
| 2026-04 | 21 | 67% | +50 min |
| 2026-05 | 23 | 78% | +3 min |
| 2026-06 | 26 | 73% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 65% |
| Tue | 11 | 82% |
| Wed | 13 | 54% |
| Thu | 32 | 63% |
| Fri | 33 | 58% |
| Sat | 14 | 93% |
| Sun | 35 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…