Flight number record
UA 1374
United Airlines · Denver to Fort Lauderdale
- Route
- DEN → FLL
- Departs
- 17:40
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1374, check with United Airlines.
UA 1374 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 364 flights, with a median arrival 3 minutes early.
Key figures
On time
74.9%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.81%
1 hour+ late
8.8%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When UA 1374 flies
UA 1374 flies DEN to FLL without a single fixed slot. Its most common scheduled departure was 17:40, used on 155 of 364 flights, with 17:45 (47 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:40155 flights42.6%
- Departs 17:4547 flights12.9%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 17:40 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and UA 1374 runs 7 points better at 74.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
UA 1374 next to DEN to FLL
Every carrier on DEN to FLL combined arrived on time 77.4% of the time across 1,630 flights, so UA 1374 is 3 points behind it. United flew 1,225 flights on the same city pair under all its flight numbers, including this one, and those ran 81.2% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1374thin sample | 364 | 74.9% | 61 min | 0.27% | C+ |
| All United Airlines on DEN–FLL | 1,225 | 81.2% | 58 min | 0.33% | B+ |
| All carriers on DEN–FLL | 1,630 | 77.4% | 57 min | 0.43% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1374 quarter by quarter
UA 1374 did not run the same all year. Its best quarter was Oct–Dec 2025 at 86.8% on time and its weakest Jul–Sep 2025 at 54.9%, a swing of 32 points on roughly 91 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202592 flights54.9%
- Oct–Dec 202591 flights86.8%
- Jan–Mar 202690 flights78.7%
- Apr–Jun 202691 flights79.1%
Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1374 did best on Friday at 80.8% on time and worst on Saturday at 65.4%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1374 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 56% of the 5,550 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 56%Late-arriving aircraft
- 22%Carrier
- 20%National Airspace System
- 3%Extreme weather
56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,550 reported delay minutes here, that single category outweighs weather by 22 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,550 delay minutes reported on UA 1374.
Cancellations are rare at 0.27%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
8.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 1,703 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The same number turns up on five other city pairs in the data, including SFO to DEN (86), TUS to DEN (52) and SAT to SFO (37), but none flew often enough under UA 1374 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to FLL only.
One caution: this is a thin sample. 364 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking UA 1374
For a booking, read UA 1374 as 74.9% on time with 0.27% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to FLL, every carrier and departure
- FLL to DEN, the return direction
- United Airlines 2188 on the same route84.8%
- Denver International (DEN) delay statistics
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.