Flight profile · United Airlines
UA1940
Denver (DEN) to San Diego (SAN) · scheduled 11:33 AM – 12:57 PM
How UA1940 performs
316 operations, 2025-08-19 to 2026-06-30.
UA1940 arrived on time 82.0% of the time, against 75.9% for all DEN → SAN flights — this specific departure is 6.1 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 · 316 operations between 2025-08-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1940 | 82.0% | 0.00% | -7 min | 4.1% | 316 |
| United Airlines on DEN → SAN | 80.6% | 0.87% | -7 min | 6.7% | 6,420 |
| All DEN → SAN flights | 75.9% | 0.98% | -4 min | 7.3% | 16,924 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-08-19 to 2026-06-30
Other routes UA1940 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 |
|---|---|---|---|
| XNA→DEN Fayetteville/Springdale/Rogers to Denver | 2026-05-21 – 2026-06-24 | 35 | — |
| TUL→DEN Tulsa to Denver | 2026-04-30 – 2026-04-30 | 1 | — |
| FLL→DEN Fort Lauderdale to Denver | 2026-03-05 – 2026-03-28 | 24 | — |
| LGA→DEN New York to Denver | 2026-02-12 – 2026-03-04 | 21 | — |
| MSY→DEN New Orleans to Denver | 2025-12-02 – 2025-12-17 | 16 | — |
| IAD→SFO Washington to San Francisco | 2025-06-26 – 2025-08-18 | 54 | — |
| SAT→IAD San Antonio to Washington | 2025-08-01 – 2025-08-18 | 14 | — |
| IAD→ATL Washington to Atlanta | 2023-07-02 – 2025-06-25 | 692 | 87.1% |
| ATL→IAH Atlanta to Houston | 2024-08-19 – 2024-09-25 | 32 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1940 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 316 records of UA1940 operating DEN → SAN, 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.