Flight profile · United Airlines
UA1422
Denver (DEN) to St. Louis (STL) · scheduled 5:40 PM – 8:46 PM
How UA1422 performs
603 operations, June 2024 – August 2026.
Between its first and last recorded date on DEN → STL, UA1422 averaged about 5 operations a week (603 in 796 days, cancelled ones included).
UA1422 arrived on time 65.8% of the time, against 76.1% for all DEN → STL flights, so this departure is 10.3 percentage points worse than the route as a whole. Against United Airlines’ own flights on this route it is 12.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 603 operations, June 2024 – August 2026 · If UA1422 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
What stands out
How UA1422 compares to other flight numbers, not just to itself.
This flight runs unusually far behind the carrier's own average on this route, worse than 92% of 12,152 comparable flight numbers.
65.8% on time for this specific departure, against 78.0% for the same carrier's other flights on this route.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.
Where UA1422 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| UA1422 | 65.8% | 0.83% | 1 min | 14.6% | 603 |
| United Airlines on DEN → STL | 78.0% | 0.69% | -5 min | 8.6% | 3,638 |
| All DEN → STL flights | 76.1% | 0.69% | -4 min | 7.9% | 12,254 |
UA1422 cancelled 5 of 603 operations (0.83%), close to the 0.69% for DEN → STL.
14.6% of UA1422’s arrivals were an hour or more late, against 7.9% across DEN → STL, so the long delays are more common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026
Why UA1422 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 and fueling, all 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 UA1422 on DEN → STL. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies UA1422 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, UA1422 pushed back an average of 49 minutes late; when it came in on time or early, an average of 6 minutes late.
Matched by tail number to the aircraft’s previous flight into DEN: 526 of 598 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| UA1422 | 26% | 70% | 15% |
| Network, same turn | 17% | 69% | 9% |
70 scheduled minutes is enough to clean and board when the aircraft is on time, with little to spare when it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often UA1422’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often UA1422 left 15 or more minutes late is about the same as the network’s.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
From pushback to gate
When it leaves DEN late, does that still matter by the time it reaches STL?
UA1422 pushes back an average of 23.6 minutes late and reaches the gate at STL an average of 21.2 minutes late. The 2.4 minutes between those two figures are slack the published schedule already carries, so a late pushback is partly, not fully, made up before the gate. Its 23.0 minutes on the taxiways at DEN is about what any departure from the airport in that hour spends.
On arrival at STL, UA1422 spends 5.6 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at STL spends on the ground before reaching the gate.
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 94,395 DEN departures. Taxi-in is landing to gate, set against 203,976 arrivals at STL. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026
The hour it leaves DEN
UA1422 has one departure time, 5:40 PM, so this is what that hour at DEN is worth.
On-time arrival rate. 94,395 departures from DEN are scheduled in the 5 PM–6 PM hour over the period, against 991,655 across the whole day.
UA1422 is scheduled out of DEN at 5:40 PM, in the 5 PM–6 PM bank. Departures from DEN in that hour arrive on time 67.3% of the time against 75.8% across the airport’s whole day — the slot alone is worth 8.5 points worse before anything about this particular flight is considered.
Both airport figures cover every destination from DEN, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026 · Hours below 120 departures are not scored.
Other routes UA1422 has flown
Carriers reassign flight numbers. UA1422 also served these 12 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| DEN→RNO Denver to Reno | May 20, 2026 | 1 | — |
| IAD→BTV Washington to Burlington | April 30, 2026 – May 19, 2026 | 20 | — |
| MCO→EWR Orlando to Newark | October 26, 2025 – December 1, 2025 | 37 | — |
| MFR→DEN Medford to Denver | May 22, 2025 – August 18, 2025 | 89 | — |
| SFO→MFR San Francisco to Medford | May 22, 2025 – June 25, 2025 | 35 | — |
| SMF→DEN Sacramento to Denver | May 23, 2024 – April 30, 2025 | 304 | 88.0% |
| DEN→IAH Denver to Houston | March 30, 2025 – April 30, 2025 | 32 | — |
| DEN→PBI Denver to West Palm Beach | March 21–28, 2025 | 2 | — |
| DEN→PSP Denver to Palm Springs | March 7, 2024 – May 22, 2024 | 77 | — |
| IND→DEN Indianapolis to Denver | July 1, 2023 – March 30, 2024 | 244 | 85.4% |
| DEN→LAX Denver to Los Angeles | October 29, 2023 – November 27, 2023 | 29 | — |
| MCO→DEN Orlando to Denver | October 29–31, 2023 | 3 | — |
The figures above describe only DEN → STL, the route UA1422 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
74 min late
against a median of 1 min late
UA1422 has an average that understates its risk: a typical arrival is 1 min late, but the worst tenth are 73 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 603 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA1315 | United Airlines | 85.4% | 8 min early | 866 |
| UA652 | United Airlines | 84.8% | 8 min early | 937 |
| F93302 | Frontier Airlines | 83.4% | 11 min early | 628 |
| UA1422 this flight | United Airlines | 65.8% | 1 min late | 603 |
Among all 4 departures on this route with at least 600 operations, UA1422 has the lowest on-time rate, 19.6 points behind the best. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 603 records of UA1422 operating DEN → STL, 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 reported separately, not in the on-time rate.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed