Flight profile · United Airlines
UA1502
Salt Lake City (SLC) to Chicago (ORD) · scheduled 8:30 AM – 12:54 PM
How UA1502 performs
194 operations, 2025-10-26 to 2026-06-30.
UA1502 arrived on time 82.4% of the time, against 79.4% for all SLC → ORD flights — this specific departure is 3.0 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 1.3 points better.
Source: US DOT Bureau of Transportation Statistics · 194 operations between 2025-10-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1502 | 82.4% | 0.52% | -13 min | 7.3% | 194 |
| United Airlines on SLC → ORD | 81.1% | 1.25% | -7 min | 6.8% | 3,032 |
| All SLC → ORD flights | 79.4% | 1.00% | -7 min | 8.3% | 9,100 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-10-26 to 2026-06-30
Other routes UA1502 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 |
|---|---|---|---|
| ORD→CLE Chicago to Cleveland | 2026-03-05 – 2026-06-30 | 114 | 79.5% |
| ORD→IAD Chicago to Washington | 2026-02-12 – 2026-03-04 | 21 | — |
| ORD→RDU Chicago to Raleigh–Durham | 2023-07-01 – 2026-02-11 | 773 | 82.6% |
| EWR→FLL Newark to Fort Lauderdale | 2025-12-18 – 2026-01-05 | 19 | — |
| RDU→IAD Raleigh–Durham to Washington | 2025-09-25 – 2025-12-17 | 78 | — |
| MCI→ORD Kansas City to Chicago | 2023-09-05 – 2025-10-25 | 55 | — |
| SEA→ORD Seattle to Chicago | 2025-08-01 – 2025-08-18 | 18 | — |
| ORD→DSM Chicago to Des Moines | 2025-06-25 – 2025-06-25 | 1 | — |
| ORD→MCO Chicago to Orlando | 2025-06-19 – 2025-06-19 | 1 | — |
| SAN→ORD San Diego to Chicago | 2023-10-29 – 2025-04-30 | 425 | 87.2% |
| RDU→EWR Raleigh–Durham to Newark | 2025-03-30 – 2025-04-30 | 28 | — |
| ORD→EWR Chicago to Newark | 2025-02-13 – 2025-03-05 | 21 | — |
| EWR→SAT Newark to San Antonio | 2024-08-19 – 2024-09-25 | 38 | — |
| SAT→IAH San Antonio to Houston | 2024-08-19 – 2024-09-25 | 38 | — |
| ORD→CVG Chicago to Cincinnati / Covington | 2024-01-09 – 2024-02-14 | 37 | — |
| AUS→ORD Austin to Chicago | 2023-07-01 – 2023-09-04 | 64 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1502 currently operates. Blending them would produce an average of two different flights.
Why UA1502 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
Share of the delay minutes US DOT attributed to each cause for UA1502 on SLC → ORD. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on SLC → ORD
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2247 | Delta Air Lines | 84.7% | 8 min early | 723 |
| DL2413 | Delta Air Lines | 74.7% | 5 min early | 751 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 194 records of UA1502 operating SLC → 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.
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