Flight number record
UA 1766
United Airlines · Nashville to Denver
- Route
- BNA → DEN
- Departs
- 14:29
- Flights
- 342
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1766, check with United Airlines.
UA 1766 lands a B, 3 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 close to two hours on average. That rests on 342 flights, with a median arrival 6 minutes early.
Key figures
On time
80.7%
Arrivals under 15 minutes late, of 332 completed flights
Avg delay
101 min
Across delayed arrivals only, not all flights
Cancelled
1.17%
National rate is 1.89%
1 hour+ late
7.2%
National rate is 8.3%
These figures cover 342 flights between September 2025 and August 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When UA 1766 flies
UA 1766 flies BNA to DEN without a single fixed slot. Its most common scheduled departure was 14:29, used on 74 of 342 flights, with 14:35 (51 flights) and 16:00 (39 flights) next.
- Departs 14:2974 flights21.6%
- Departs 14:3551 flights14.9%
- Departs 16:0039 flights11.4%
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 14:29 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 1766 runs 9 points better at 80.7%. 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 1766 next to BNA to DEN
Every carrier on BNA to DEN combined arrived on time 74.2% of the time across 3,632 flights, so UA 1766 is 7 points ahead of it. United flew 1,181 flights on the same city pair under all its flight numbers, including this one, and those ran 79.4% 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 1766thin sample | 342 | 80.7% | 101 min | 1.17% | B |
| All United Airlines on BNA–DEN | 1,181 | 79.4% | 86 min | 0.85% | B+ |
| All carriers on BNA–DEN | 3,632 | 74.2% | 64 min | 0.61% | C+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1766 quarter by quarter
UA 1766 did not run the same all year. Its best quarter was Oct–Dec 2025 at 88.4% on time and its weakest Apr–Jun 2026 at 71.6%, a swing of 17 points on roughly 86 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 202523 flights—
- Oct–Dec 202586 flights88.4%
- Jan–Mar 202687 flights83.3%
- Apr–Jun 202691 flights71.6%
- Jul–Sep 202655 flights74.5%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1766 did best on Sunday at 90.2% on time and worst on Friday at 70.0%. Each day rests on about 49 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1766 runs when it is late
UA 1766 often beats the schedule: 84 of 332 completed flights, 25%, arrived 15 minutes or more early. The 64 late arrivals split 24 under half an hour, 16 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early84 flights25.3%
- Within 15 min184 flights55.4%
- 15–29 min late24 flights7.2%
- 30–59 min late16 flights4.8%
- 1–2 hours late8 flights2.4%
- 2+ hours late16 flights4.8%
Scale runs 0% to 100%.
Share of 332 completed flights by arrival against schedule.
21 of 77 late departures made up the time and arrived on time, 27% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for UA 1766
The latest arrival of the period was on 6 March 2026, 21 hours 2 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 21 hours 2 minutes | Carrier |
| 30 August 2026 | 8 hours 35 minutes | Late-arriving aircraft |
| 22 April 2026 | 5 hours 51 minutes | Late-arriving aircraft |
| 6 June 2026 | 5 hours 42 minutes | Carrier |
| 17 June 2026 | 4 hours 6 minutes | Late-arriving aircraft |
Delay causes
Why UA 1766 runs late
Carrier accounts for 45% of the 6,475 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Carrier
- 33%Late-arriving aircraft
- 22%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 45%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,883 of the 6,475 delay minutes reported here. The split is drawn from 6,475 delay minutes reported on UA 1766.
Cancellations sit at 1.17% against a national 1.89%, which is ordinary. Diversions add another 1.75%.
Connections and routes
What a delay on this flight costs
7.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.
The 1,013 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on one other city pair in the data, including DEN to PHX (14), but none flew often enough under UA 1766 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BNA to DEN only.
One caution: this is a thin sample. 342 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 1766
For a booking, read UA 1766 as 80.7% on time with 1.17% cancelled over 342 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BNA to DEN, every carrier and departure
- DEN to BNA, the return direction
- United Airlines 1716 on the same route88.4%
- Frontier Airlines 1401 on the same route79.1%
- Nashville International (BNA) delay statistics
- 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.