Flight profile · United Airlines
UA1015
Boston (BOS) to Chicago (ORD) · scheduled 6:03 PM – 8:25 PM
How UA1015 performs
433 operations, 2024-12-19 to 2026-06-30.
UA1015 arrived on time 52.1% of the time, against 77.1% for all BOS → ORD flights — this specific departure is 24.9 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 27.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 433 operations between 2024-12-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1015 | 52.1% | 2.77% | 13 min | 22.4% | 433 |
| United Airlines on BOS → ORD | 79.2% | 1.53% | -6 min | 8.1% | 7,310 |
| All BOS → ORD flights | 77.1% | 1.92% | -7 min | 9.7% | 21,098 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-19 to 2026-06-30
Other routes UA1015 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SFO→BOS San Francisco to Boston | 2025-08-21 – 2026-06-30 | 59 | — |
| ORD→IAD Chicago to Washington | 2026-05-21 – 2026-06-24 | 35 | — |
| PWM→IAD Portland to Washington | 2026-05-02 – 2026-05-16 | 3 | — |
| ORD→IAH Chicago to Houston | 2026-04-30 – 2026-04-30 | 1 | — |
| TUS→IAH Tucson to Houston | 2026-04-01 – 2026-04-29 | 9 | — |
| SMF→EWR Sacramento to Newark | 2026-03-31 – 2026-04-28 | 5 | — |
| ORD→DEN Chicago to Denver | 2026-04-02 – 2026-04-27 | 16 | — |
| RSW→SFO Fort Myers to San Francisco | 2026-01-07 – 2026-02-11 | 11 | — |
| ORD→SAT Chicago to San Antonio | 2025-12-31 – 2025-12-31 | 1 | — |
| ORD→DSM Chicago to Des Moines | 2025-12-24 – 2025-12-24 | 1 | — |
| ORD→SFO Chicago to San Francisco | 2025-03-06 – 2025-03-28 | 11 | — |
| IAH→LGA Houston to New York | 2024-12-03 – 2024-12-18 | 16 | — |
| IAH→IAD Houston to Washington | 2024-10-27 – 2024-12-02 | 37 | — |
| DRO→DEN Durango to Denver | 2024-06-27 – 2024-08-18 | 53 | — |
| ORD→SNA Chicago to Santa Ana | 2024-05-02 – 2024-05-22 | 21 | — |
| SNA→EWR Santa Ana to Newark | 2024-05-02 – 2024-05-22 | 21 | — |
| EWR→SNA Newark to Santa Ana | 2024-03-31 – 2024-05-01 | 32 | — |
| GRR→IAH Grand Rapids to Houston | 2024-02-15 – 2024-03-06 | 21 | — |
| ORD→ATL Chicago to Atlanta | 2024-02-01 – 2024-02-14 | 14 | — |
| DEN→ORD Denver to Chicago | 2023-09-29 – 2023-10-28 | 30 | — |
| ORD→CLT Chicago to Charlotte | 2023-09-29 – 2023-10-28 | 30 | — |
| PDX→DEN Portland to Denver | 2023-09-29 – 2023-10-28 | 30 | — |
| DFW→IAD Dallas–Fort Worth to Washington | 2023-09-05 – 2023-09-28 | 24 | — |
| DEN→BOS Denver to Boston | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1015 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 433 records of UA1015 operating BOS → ORD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.