Flight profile · United Airlines
UA2159
Denver (DEN) to Kansas City (MCI) · scheduled 9:55 AM – 12:43 PM
How UA2159 performs
401 operations, 2025-05-01 to 2026-06-30.
UA2159 arrived on time 86.3% of the time, against 76.8% for all DEN → MCI flights — this specific departure is 9.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 8.6 points better.
Source: US DOT Bureau of Transportation Statistics · 401 operations between 2025-05-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2159 | 86.3% | 0.25% | -5 min | 3.0% | 401 |
| United Airlines on DEN → MCI | 77.7% | 0.60% | -4 min | 8.6% | 4,200 |
| All DEN → MCI flights | 76.8% | 0.75% | -3 min | 7.3% | 12,803 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-05-01 to 2026-06-30
Other routes UA2159 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 |
|---|---|---|---|
| MCI→IAH Kansas City to Houston | 2026-04-30 – 2026-05-20 | 20 | — |
| DEN→GSP Denver to Greenville/Greer/Spartanburg | 2026-03-07 – 2026-03-28 | 4 | — |
| LAX→IAD Los Angeles to Washington | 2024-03-31 – 2026-01-05 | 72 | — |
| XNA→IAH Fayetteville/Springdale/Rogers to Houston | 2025-06-03 – 2025-06-03 | 1 | — |
| DTW→DEN Detroit to Denver | 2025-03-06 – 2025-04-30 | 56 | — |
| DEN→SJC Denver to San Jose | 2025-01-07 – 2025-03-05 | 58 | — |
| MSY→DEN New Orleans to Denver | 2025-02-13 – 2025-03-05 | 13 | — |
| TPA→DEN Tampa to Denver | 2024-10-27 – 2025-02-12 | 89 | — |
| EWR→TPA Newark to Tampa | 2024-12-03 – 2025-01-06 | 35 | — |
| ORD→ALB Chicago to Albany | 2024-05-23 – 2024-10-26 | 142 | 89.4% |
| SBN→ORD South Bend to Chicago | 2024-10-11 – 2024-10-11 | 1 | — |
| ORD→LAX Chicago to Los Angeles | 2024-03-07 – 2024-05-22 | 40 | — |
| MCI→ORD Kansas City to Chicago | 2024-02-15 – 2024-03-06 | 18 | — |
| DCA→IAH Washington to Houston | 2023-11-28 – 2024-02-14 | 78 | — |
| IAH→DFW Houston to Dallas–Fort Worth | 2024-01-09 – 2024-01-31 | 22 | — |
| DCA→BTR Washington to Baton Rouge | 2024-01-28 – 2024-01-28 | 1 | — |
| ORD→DCA Chicago to Washington | 2023-12-21 – 2024-01-08 | 3 | — |
| DEN→SAT Denver to San Antonio | 2023-10-29 – 2023-11-27 | 29 | — |
| ORD→SLC Chicago to Salt Lake City | 2023-09-29 – 2023-10-28 | 30 | — |
| SLC→EWR Salt Lake City to Newark | 2023-10-01 – 2023-10-28 | 28 | — |
| EWR→ORF Newark to Norfolk | 2023-09-06 – 2023-09-28 | 20 | — |
| ORD→RIC Chicago to Richmond | 2023-09-05 – 2023-09-05 | 1 | — |
| MSP→ORD Minneapolis to Chicago | 2023-07-05 – 2023-09-04 | 43 | — |
| EWR→CLT Newark to Charlotte | 2023-07-03 – 2023-07-23 | 3 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2159 currently operates. Blending them would produce an average of two different flights.
Why UA2159 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA2159 on DEN → MCI. 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 DEN → MCI
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA586 | United Airlines | 84.0% | 7 min early | 1,091 |
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 401 records of UA2159 operating DEN → MCI, 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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