Flight profile · United Airlines
UA2651
Denver (DEN) to Seattle (SEA) · scheduled 8:55 PM – 10:59 PM
How UA2651 performs
783 operations, 2023-07-05 to 2026-06-29.
UA2651 arrived on time 69.9% of the time, against 74.9% for all DEN → SEA flights — this specific departure is 5.0 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 9.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 783 operations between 2023-07-05 to 2026-06-29
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2651 | 69.9% | 1.15% | 0 min | 10.7% | 783 |
| United Airlines on DEN → SEA | 79.7% | 0.65% | -6 min | 6.7% | 5,860 |
| All DEN → SEA flights | 74.9% | 0.67% | -3 min | 7.3% | 19,612 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-29
By day of week
Does UA2651 run worse on particular days?
Friday is historically the most reliable day and Monday the least, a gap of 5.2 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-29 · Days with fewer than 120 operations are not scored.
Other routes UA2651 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 |
|---|---|---|---|
| PSP→DEN Palm Springs to Denver | 2026-05-01 – 2026-05-20 | 20 | — |
| SEA→ORD Seattle to Chicago | 2023-12-21 – 2026-05-17 | 79 | — |
| SEA→EWR Seattle to Newark | 2026-02-12 – 2026-03-04 | 21 | — |
| MCO→IAD Orlando to Washington | 2026-01-06 – 2026-02-11 | 32 | — |
| LAX→SFO Los Angeles to San Francisco | 2025-12-02 – 2025-12-17 | 16 | — |
| MSN→DEN Madison to Denver | 2024-01-09 – 2025-08-30 | 94 | 74.7% |
| LGA→DEN New York to Denver | 2025-06-26 – 2025-07-31 | 36 | — |
| IND→DEN Indianapolis to Denver | 2024-10-27 – 2025-05-21 | 35 | — |
| EYW→ORD Key West to Chicago | 2025-03-06 – 2025-03-29 | 24 | — |
| ORD→LAS Chicago to Las Vegas | 2025-03-06 – 2025-03-29 | 18 | — |
| AUS→DEN Austin to Denver | 2024-12-19 – 2025-01-06 | 13 | — |
| ORD→IAH Chicago to Houston | 2024-12-03 – 2024-12-18 | 16 | — |
| TYS→DEN Knoxville/Maryville to Denver | 2024-10-01 – 2024-10-26 | 26 | — |
| PIT→DEN Pittsburgh to Denver | 2024-08-19 – 2024-08-31 | 13 | — |
| PHL→DEN Philadelphia to Denver | 2024-05-23 – 2024-06-26 | 35 | — |
| RDU→DEN Raleigh–Durham to Denver | 2024-05-02 – 2024-05-22 | 21 | — |
| OMA→DEN Omaha to Denver | 2024-03-31 – 2024-05-01 | 32 | — |
| IAD→EWR Washington to Newark | 2024-03-06 – 2024-03-06 | 1 | — |
| SAV→DEN Savannah to Denver | 2024-02-15 – 2024-03-04 | 15 | — |
| LAS→IAH Las Vegas to Houston | 2023-09-28 – 2023-09-28 | 1 | — |
| ABQ→DEN Albuquerque to Denver | 2023-07-05 – 2023-07-31 | 27 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2651 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 783 records of UA2651 operating DEN → SEA, 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.