Flight number record
UA 1378
United Airlines · Denver to Eagle
- Route
- DEN → EGE
- Departs
- 11:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1378, check with United Airlines.
UA 1378 lands a B+, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 40 minutes on average. That rests on 365 flights, with a median arrival 1 minute early.
Key figures
On time
81.0%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
42 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When UA 1378 flies
UA 1378 flies DEN to EGE without a single fixed slot. Its most common scheduled departure was 11:30, used on 88 of 365 flights, with 11:16 (47 flights) and 11:44 (45 flights) next.
- Departs 11:3088 flights24.1%
- Departs 11:1647 flights12.9%
- Departs 11:4445 flights12.3%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 1378 runs 3 points better at 81.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 1378 next to DEN to EGE
Every carrier on DEN to EGE combined arrived on time 79.2% of the time across 1,171 flights, so UA 1378 is 2 points ahead of it. United flew 954 flights on the same city pair under all its flight numbers, including this one, and those ran 77.8% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1378 | 365 | 81.0% | 42 min | 0.27% | B+ |
| All United Airlines on DEN–EGE | 954 | 77.8% | 62 min | 0.21% | B+ |
| All carriers on DEN–EGE | 1,171 | 79.2% | 60 min | 0.34% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1378 quarter by quarter
UA 1378 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 61.8%, a swing of 38 points on roughly 73 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 202530 flights100.0%
- Oct–Dec 202592 flights83.7%
- Jan–Mar 202690 flights61.8%
- Apr–Jun 202691 flights90.1%
- Jul–Sep 202662 flights82.3%
Scale runs 55% to 100%.
By weekday, UA 1378 did best on Tuesday at 86.5% on time and worst on Sunday at 61.5%. Each day rests on about 52 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1378 runs when it is late
The 69 late arrivals split 32 under half an hour, 24 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early28 flights7.7%
- Within 15 min267 flights73.4%
- 15–29 min late32 flights8.8%
- 30–59 min late24 flights6.6%
- 1–2 hours late11 flights3.0%
- 2+ hours late2 flights0.5%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
5 of 36 late departures made up the time and arrived on time, 14% of them. In the other direction, 38 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at EGE.
The worst days
Worst days for UA 1378
The latest arrival of the period was on 6 March 2026, 2 hours 57 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 2 hours 57 minutes | Late-arriving aircraft |
| 27 December 2025 | 2 hours 28 minutes | Late-arriving aircraft |
| 21 August 2026 | 1 hour 49 minutes | Late-arriving aircraft |
| 7 December 2025 | 1 hour 45 minutes | Carrier |
| 26 December 2025 | 1 hour 35 minutes | National Airspace System |
Delay causes
Why UA 1378 runs late
National Airspace System accounts for 51% of the 2,894 delay minutes carriers reported here, and the remaining four split what is left.
- 51%National Airspace System
- 24%Carrier
- 22%Late-arriving aircraft
- 3%Extreme weather
51% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,479 minutes out of 2,894, against a national NAS share of 21%. The split is drawn from 2,894 delay minutes reported on UA 1378.
Cancellations are rare at 0.27%, below the national 1.89% 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
Badly late arrivals are rare here: only 3.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The same number turns up on two other city pairs in the data, including ATL to DEN (30) and FAR to DEN (6), but none flew often enough under UA 1378 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to EGE only.
One caution: this is a thin sample. 365 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 1378
For a booking, read UA 1378 as 81.0% on time with 0.27% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to EGE, every carrier and departure
- EGE to DEN, the return direction
- United Airlines 2859 on the same route70.6%
- Denver International (DEN) 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
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.