Flight profile · United Airlines
UA1418
Denver (DEN) to Miami (MIA) · scheduled 10:05 AM – 4:15 PM
How UA1418 performs
803 operations, July 2023 – August 2026.
Between its first and last recorded date on DEN → MIA, UA1418 averaged about 5 operations a week (803 in 1,158 days, cancelled ones included).
UA1418 arrived on time 70.1% of the time, against 71.5% for all DEN → MIA flights, so this departure is 1.4 percentage points worse than the route as a whole. Against United Airlines’ own flights on this route it is 1.4 points worse.
Source: US DOT Bureau of Transportation Statistics · 803 operations, July 2023 – August 2026 · If UA1418 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where UA1418 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| UA1418 | 70.1% | 0.75% | -1 min | 10.1% | 803 |
| United Airlines on DEN → MIA | 71.5% | 0.44% | -2 min | 8.9% | 2,753 |
| All DEN → MIA flights | 71.5% | 0.75% | -2 min | 9.3% | 7,850 |
UA1418 cancelled 6 of 803 operations (0.75%), close to the 0.75% for DEN → MIA.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
Why UA1418 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA1418 on DEN → MIA. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies UA1418 comes in late, and what that does to the departure.
The aircraft flying UA1418 came in 15 or more minutes late on 8% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Matched by tail number to the aircraft’s previous flight into DEN: 714 of 797 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 |
|---|---|
| UA1418 | 8% |
| Network, same turn | 17% |
75 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 UA1418’s aircraft landed 15 or more minutes late is lower than the network’s. There are not enough departures in both groups to compare how it left.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
From pushback to gate
When it leaves DEN late, does that still matter by the time it reaches MIA?
UA1418 pushes back an average of 10.8 minutes late and arrives a further 2.2 minutes behind that. This departure loses ground between the two gates rather than recovering it, so a late pushback here tends to get worse on the way, not better. It spends 24.5 minutes on the taxiways at DEN, 4.0 minutes longer than a typical DEN departure in the same hour.
On arrival at MIA, UA1418 spends 13.8 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 4.0 minutes longer than a typical MIA arrival (9.7 min).
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 61,874 DEN departures. Taxi-in is landing to gate, set against 349,140 arrivals at MIA. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
The hour it leaves DEN
UA1418 has one departure time, 10:05 AM, so this is what that hour at DEN is worth.
On-time arrival rate. 61,874 departures from DEN are scheduled in the 10 AM–11 AM hour over the period, against 991,655 across the whole day.
UA1418 is scheduled out of DEN at 10:05 AM, in the 10 AM–11 AM bank. Departures from DEN in that hour arrive on time 81.3% of the time against 75.8% across the airport’s whole day — the slot alone is worth 5.6 points better 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 · July 2023 – August 2026 · Hours below 120 departures are not scored.
Other routes UA1418 has flown
Carriers reassign flight numbers. UA1418 also served these 20 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| MIA→EWR Miami to Newark | February 12, 2026 – August 31, 2026 | 42 | — |
| EWR→EYW Newark to Key West | June 25, 2026 – August 10, 2026 | 47 | — |
| DEN→BWI Denver to Baltimore | May 21, 2026 – June 24, 2026 | 35 | — |
| IAH→PHX Houston to Phoenix | April 30, 2026 – May 20, 2026 | 21 | — |
| IAH→SFO Houston to San Francisco | March 29, 2026 – April 29, 2026 | 32 | — |
| SFO→ORD San Francisco to Chicago | April 1–29, 2026 | 29 | — |
| ORD→GRR Chicago to Grand Rapids | April 2–24, 2026 | 4 | — |
| MTJ→DEN Montrose to Denver | February 12, 2026 – March 4, 2026 | 21 | — |
| SBP→DEN San Luis Obispo to Denver | October 29, 2023 – December 17, 2025 | 182 | 85.6% |
| DEN→BOS Denver to Boston | August 1–18, 2025 | 18 | — |
| DEN→COS Denver to Colorado Springs | June 26, 2025 – July 31, 2025 | 36 | — |
| DEN→PHL Denver to Philadelphia | May 22, 2025 – June 25, 2025 | 34 | — |
| GEG→DEN Spokane to Denver | May 22–30, 2025 | 6 | — |
| FSD→DEN Sioux Falls to Denver | March 30, 2025 – April 30, 2025 | 32 | — |
| EUG→SFO Eugene to San Francisco | March 6–29, 2025 | 24 | — |
| MIA→ORD Miami to Chicago | December 19, 2024 – February 12, 2025 | 44 | — |
| GJT→DEN Grand Junction to Denver | October 27–31, 2024 | 5 | — |
| ONT→DEN Ontario to Denver | September 26, 2024 – October 26, 2024 | 31 | — |
| MKE→DEN Milwaukee to Denver | March 8–30, 2024 | 23 | — |
| SBA→DEN Santa Barbara to Denver | January 9, 2024 – March 6, 2024 | 58 | — |
The figures above describe only DEN → MIA, the route UA1418 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
58 min late
against a median of 1 min early
Percentiles over 803 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| F91280 | Frontier Airlines | 70.8% | 2 min early | 668 |
| UA1418 this flight | United Airlines | 70.1% | 1 min early | 803 |
Among all 2 departures on this route with at least 600 operations, UA1418 has the lowest on-time rate, 0.7 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 803 records of UA1418 operating DEN → MIA, 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