Flight number record

UA 1217

United Airlines · Denver to Durango

Route: DEN → DRO
Departs: 11:22
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1217, check with United Airlines.

UA 1217 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 50 minutes on average. That is a workable record, not a spotless one. That rests on 364 flights, with a median arrival 4 minutes early.

Set against the rest of the country, UA 1217's record is 6 points better than the US average of 77.6%. That gap is worth roughly 61 fewer late arrivals for every thousand flights.

On time

83.7%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

50 min

Across delayed arrivals only, not all flights

Cancelled

0.27%

National rate is 1.81%

1 hour+ late

4.4%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. The median arrival is 4 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.

Schedule

When UA 1217 flies

UA 1217 flies DEN to DRO without a single fixed slot. Its most common scheduled departure was 11:22, used on 93 of 364 flights, with 11:20 (84 flights) and 11:15 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:2293 flights25.5%
Departs 11:2084 flights23.1%
Departs 11:1555 flights15.1%

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 11:22 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1217 runs 5 points better at 83.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 1217 next to DEN to DRO

Every carrier on DEN to DRO combined arrived on time 79.7% of the time across 2,191 flights, so UA 1217 is 4 points ahead of it. United flew 731 flights on the same city pair under all its flight numbers, including this one, and those ran 75.1% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 5 points.

UA 1217 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1217thin sample	364	83.7%	50 min	0.27%	B+
All United Airlines on DEN–DRO	731	75.1%	59 min	0.41%	B+
All carriers on DEN–DRO	2,191	79.7%	67 min	1.14%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1217 quarter by quarter

Quarter by quarter UA 1217 held fairly steady: 82.6% in Jul–Sep 2025, 84.4% in Oct–Dec 2025, 85.4% in Jan–Mar 2026 and 82.4% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights82.6%
Oct–Dec 202591 flights84.4%
Jan–Mar 202690 flights85.4%
Apr–Jun 202691 flights82.4%

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1217 did best on Tuesday at 92.5% on time and worst on Thursday at 80.4%. Each day rests on about 52 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1217 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 2,969 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.

Late-arriving aircraft
47%
Carrier
34%
National Airspace System
19%

47% 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 2,969 reported delay minutes here, that single category outweighs weather by 47 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 2,969 delay minutes reported on UA 1217.

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

Badly late arrivals are rare here: only 4.4% land an hour or more behind schedule, against 8.1% 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 four other city pairs in the data, including ORD to DEN (94), SNA to DEN (44) and MKE to DEN (27), but none flew often enough under UA 1217 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. 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 1217

For a booking, read UA 1217 as 83.7% on time with 0.27% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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.

Key figures