Flight profile · United Airlines
UA1421
Chicago (ORD) to Fort Lauderdale (FLL) · scheduled 7:00 AM – 11:13 AM
How UA1421 performs
574 operations, 2024-06-27 to 2026-06-30.
UA1421 arrived on time 91.4% of the time, against 74.9% for all ORD → FLL flights — this specific departure is 16.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 11.2 points better.
Source: US DOT Bureau of Transportation Statistics · 574 operations between 2024-06-27 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1421 | 91.4% | 0.35% | -11 min | 1.4% | 574 |
| United Airlines on ORD → FLL | 80.3% | 1.17% | -6 min | 6.7% | 3,941 |
| All ORD → FLL flights | 74.9% | 1.51% | -5 min | 9.6% | 9,318 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-27 to 2026-06-30
Other routes UA1421 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 |
|---|---|---|---|
| FLL→IAD Fort Lauderdale to Washington | 2026-03-05 – 2026-06-30 | 97 | 90.7% |
| ORD→DFW Chicago to Dallas–Fort Worth | 2026-05-20 – 2026-05-20 | 1 | — |
| LAX→IAH Los Angeles to Houston | 2026-03-04 – 2026-03-04 | 1 | — |
| FLL→EWR Fort Lauderdale to Newark | 2025-12-18 – 2026-01-05 | 19 | — |
| EWR→CHS Newark to Charleston | 2025-10-01 – 2025-10-22 | 7 | — |
| FLL→IAH Fort Lauderdale to Houston | 2024-12-19 – 2025-01-06 | 19 | — |
| CLE→ORD Cleveland to Chicago | 2024-06-27 – 2024-10-25 | 117 | 98.3% |
| ORD→AUS Chicago to Austin | 2024-09-26 – 2024-10-25 | 26 | — |
| AUS→IAH Austin to Houston | 2024-10-17 – 2024-10-21 | 4 | — |
| ORD→PHL Chicago to Philadelphia | 2024-09-01 – 2024-09-25 | 25 | — |
| ORD→CLT Chicago to Charlotte | 2024-08-19 – 2024-08-31 | 13 | — |
| ORD→RDU Chicago to Raleigh–Durham | 2024-03-07 – 2024-06-26 | 108 | 86.0% |
| ORD→MSN Chicago to Madison | 2024-02-15 – 2024-03-06 | 21 | — |
| IAH→BWI Houston to Baltimore | 2024-01-09 – 2024-02-14 | 27 | — |
| MIA→SFO Miami to San Francisco | 2024-01-13 – 2024-02-11 | 10 | — |
| EWR→SFO Newark to San Francisco | 2023-12-21 – 2024-01-08 | 19 | — |
| IAH→SFO Houston to San Francisco | 2023-11-28 – 2023-12-20 | 23 | — |
| DEN→SAN Denver to San Diego | 2023-07-01 – 2023-11-27 | 143 | 87.9% |
| FLL→DEN Fort Lauderdale to Denver | 2023-11-04 – 2023-11-25 | 4 | — |
| RDU→DEN Raleigh–Durham to Denver | 2023-09-29 – 2023-10-28 | 30 | — |
| SAN→ORD San Diego to Chicago | 2023-07-10 – 2023-10-26 | 29 | — |
| PDX→DEN Portland to Denver | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1421 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 574 records of UA1421 operating ORD → FLL, 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.