Flight profile · United Airlines
UA617
Denver (DEN) to Chicago (ORD) · scheduled 1:25 PM – 5:05 PM
How UA617 performs
1,046 operations, 2023-07-01 to 2026-06-30.
UA617 arrived on time 75.8% of the time, against 74.4% for all DEN → ORD flights — this specific departure is 1.5 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 1,046 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA617 | 75.8% | 1.34% | 0 min | 7.5% | 1,046 |
| United Airlines on DEN → ORD | 75.1% | 0.84% | -3 min | 9.0% | 10,800 |
| All DEN → ORD flights | 74.4% | 0.95% | -3 min | 9.5% | 18,922 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA617 run worse on particular days?
Monday is historically the most reliable day and Friday the least, a gap of 5.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA617 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→JAX Chicago to Jacksonville | 2025-08-19 – 2026-05-20 | 58 | — |
| LAS→DEN Las Vegas to Denver | 2026-04-30 – 2026-05-20 | 21 | — |
| BOS→SFO Boston to San Francisco | 2026-02-06 – 2026-02-06 | 1 | — |
| ORD→BUF Chicago to Buffalo | 2025-09-25 – 2025-10-24 | 26 | — |
| ORD→CLT Chicago to Charlotte | 2024-06-27 – 2025-08-18 | 105 | 42.3% |
| SEA→DEN Seattle to Denver | 2025-05-01 – 2025-06-25 | 56 | — |
| ORD→ATL Chicago to Atlanta | 2025-05-22 – 2025-06-25 | 35 | — |
| ORD→CHS Chicago to Charleston | 2024-09-26 – 2025-05-21 | 52 | — |
| SLC→DEN Salt Lake City to Denver | 2023-07-01 – 2025-04-07 | 339 | 85.1% |
| ORD→DSM Chicago to Des Moines | 2025-02-13 – 2025-03-29 | 45 | — |
| ORD→TVC Chicago to Traverse City | 2024-12-19 – 2025-01-06 | 19 | — |
| PHX→DEN Phoenix to Denver | 2024-10-27 – 2024-10-31 | 5 | — |
| ORD→MSY Chicago to New Orleans | 2024-08-19 – 2024-09-25 | 38 | — |
| ORD→RDU Chicago to Raleigh–Durham | 2024-05-23 – 2024-06-26 | 35 | — |
| ORD→MIA Chicago to Miami | 2024-03-31 – 2024-04-29 | 22 | — |
| ORD→MSP Chicago to Minneapolis | 2023-09-05 – 2024-03-30 | 98 | 60.2% |
| PDX→DEN Portland to Denver | 2023-10-29 – 2024-01-08 | 48 | — |
| ORD→LGA Chicago to New York | 2023-11-01 – 2023-11-27 | 26 | — |
| TPA→ORD Tampa to Chicago | 2023-10-01 – 2023-10-28 | 28 | — |
| ORD→MDT Chicago to Harrisburg | 2023-07-01 – 2023-07-31 | 31 | — |
Because the same number has served different journeys, the statistics above describe only the route UA617 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,046 records of UA617 operating DEN → 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.