Flight number record
UA 1390
United Airlines · Denver to Durango
- Route
- DEN → DRO
- Departs
- 19:05
- Flights
- 256
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1390, check with United Airlines.
UA 1390 draws a D+. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 256 flights, with a median arrival 4 minutes late.
The national on-time rate over the same period is 77.3%, so UA 1390 runs 14 points behind the country as a whole. Across a thousand flights that is about 144 extra late arrivals.
Key figures
On time
62.9%
Arrivals under 15 minutes late, of 256 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
12.5%
National rate is 8.3%
These figures cover 256 flights between September 2025 and August 2026. Beyond the headline rate, 12.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 1390 flies
UA 1390 flies DEN to DRO without a single fixed slot. Its most common scheduled departure was 19:05, used on 69 of 256 flights, with 19:50 (40 flights) and 19:17 (37 flights) next.
- Departs 19:0569 flights27.0%
- Departs 19:5040 flights15.6%
- Departs 19:1737 flights14.5%
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 19:05 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 1390 runs 5 points worse at 62.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 1390 next to DEN to DRO
Every carrier on DEN to DRO combined arrived on time 80.2% of the time across 2,201 flights, so UA 1390 is 17 points behind it. United flew 730 flights on the same city pair under all its flight numbers, including this one, and those ran 75.3% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1390thin sample | 256 | 62.9% | 75 min | 0.00% | D+ |
| All United Airlines on DEN–DRO | 730 | 75.3% | 61 min | 0.14% | B+ |
| All carriers on DEN–DRO | 2,201 | 80.2% | 69 min | 0.95% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1390 quarter by quarter
UA 1390 did not run the same all year. Its best quarter was Jan–Mar 2026 at 73.3% on time and its weakest Jul–Sep 2026 at 49.2%, a swing of 24 points on roughly 85 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.
- Oct–Dec 202514 flights—
- Jan–Mar 202690 flights73.3%
- Apr–Jun 202691 flights64.8%
- Jul–Sep 202661 flights49.2%
Scale runs 40% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1390 did best on Thursday at 70.3% on time and worst on Friday at 48.6%. Each day rests on about 37 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1390 runs when it is late
The 95 late arrivals split 27 under half an hour, 36 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early24 flights9.4%
- Within 15 min137 flights53.5%
- 15–29 min late27 flights10.5%
- 30–59 min late36 flights14.1%
- 1–2 hours late14 flights5.5%
- 2+ hours late18 flights7.0%
Scale runs 0% to 100%.
Share of 256 completed flights by arrival against schedule.
19 of 104 late departures made up the time and arrived on time, 18% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for UA 1390
The latest arrival of the period was on 30 June 2026, 8 hours 35 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 30 June 2026 | 8 hours 35 minutes | Carrier |
| 13 August 2026 | 6 hours 21 minutes | Carrier |
| 21 August 2026 | 4 hours 25 minutes | Late-arriving aircraft |
| 21 May 2026 | 3 hours 58 minutes | Late-arriving aircraft |
| 12 August 2026 | 3 hours 53 minutes | Late-arriving aircraft |
Delay causes
Why UA 1390 runs late
Late-arriving aircraft accounts for 60% of the 7,114 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Late-arriving aircraft
- 32%Carrier
- 8%National Airspace System
60% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,114 reported delay minutes here, that single category outweighs weather by 60 to one. The split is drawn from 7,114 delay minutes reported on UA 1390.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
12.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on four other city pairs in the data, including DFW to SFO (84), ORF to DEN (34) and AUS to EWR (24), but none flew often enough under UA 1390 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to DRO only.
One caution: this is a thin sample. 256 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 1390
For a booking, UA 1390 is a flight to put a long connection behind. 12.5% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- DEN to DRO, every carrier and departure
- DRO to DEN, the return direction
- SkyWest Airlines 5224 on the same route82.7%
- United Airlines 1217 on the same route84.8%
- SkyWest Airlines 5817 on the same route75.4%
- 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
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.