Flight profile · United Airlines
UA1937
Denver (DEN) to Tulsa (TUL) · scheduled 5:25 PM – 8:25 PM
How UA1937 performs
279 operations, 2025-06-26 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 279 operations between 2025-06-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1937 | 76.1% | 1.08% | -3 min | 9.1% | 279 |
| United Airlines on DEN → TUL | 72.3% | 0.52% | -2 min | 10.2% | 963 |
| All DEN → TUL flights | 75.5% | 0.70% | -4 min | 7.6% | 6,875 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-06-26 to 2026-06-30
Other routes UA1937 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 |
|---|---|---|---|
| SNA→DEN Santa Ana to Denver | 2026-02-12 – 2026-05-20 | 98 | 82.5% |
| RNO→DEN Reno to Denver | 2025-05-01 – 2025-12-01 | 214 | 67.9% |
| SFO→RNO San Francisco to Reno | 2025-08-01 – 2025-08-18 | 18 | — |
| DEN→SDF Denver to Louisville | 2025-05-01 – 2025-05-21 | 21 | — |
| IAH→MCO Houston to Orlando | 2025-03-30 – 2025-04-30 | 32 | — |
| PHX→IAH Phoenix to Houston | 2025-03-30 – 2025-04-30 | 32 | — |
| DEN→PHL Denver to Philadelphia | 2025-03-06 – 2025-03-29 | 24 | — |
| LAS→IAH Las Vegas to Houston | 2025-02-13 – 2025-03-05 | 21 | — |
| MKE→DEN Milwaukee to Denver | 2025-01-07 – 2025-02-12 | 37 | — |
| IAD→DEN Washington to Denver | 2024-12-19 – 2025-01-06 | 19 | — |
| FLL→EWR Fort Lauderdale to Newark | 2023-07-01 – 2024-12-18 | 409 | 66.1% |
| EWR→IAD Newark to Washington | 2024-05-23 – 2024-06-26 | 35 | — |
| SFO→FLL San Francisco to Fort Lauderdale | 2023-10-29 – 2024-01-08 | 72 | — |
| EWR→DFW Newark to Dallas–Fort Worth | 2023-09-05 – 2023-09-15 | 11 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1937 currently operates. Blending them would produce an average of two different flights.
Why UA1937 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
Share of the delay minutes US DOT attributed to each cause for UA1937 on DEN → TUL. 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 → TUL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO5311 | SkyWest Airlines | 87.9% | 10 min early | 764 |
| OO5315 | SkyWest Airlines | 83.8% | 6 min early | 797 |
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 279 records of UA1937 operating DEN → TUL, 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.