Flight number record
UA 1191
United Airlines · Burbank to Denver
- Route
- BUR → DEN
- Departs
- 09:00
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1191, check with United Airlines.
UA 1191 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 364 flights, with a median arrival 15 minutes early.
Set against the rest of the country, UA 1191's record is 12 points better than the US average of 77.6%. That gap is worth roughly 116 fewer late arrivals for every thousand flights.
Key figures
On time
89.2%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.81%
1 hour+ late
3.3%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. The median arrival is 15 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 1191 flies
UA 1191 flies BUR to DEN without a single fixed slot. Its most common scheduled departure was 09:00, used on 149 of 364 flights, with 09:02 (49 flights) and 09:08 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 09:00149 flights40.9%
- Departs 09:0249 flights13.5%
- Departs 09:0841 flights11.3%
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 09:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 1191 runs 5 points better at 89.2%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
UA 1191 next to BUR to DEN
Every carrier on BUR to DEN combined arrived on time 84.0% of the time across 2,219 flights, so UA 1191 is 5 points ahead of it. United flew 881 flights on the same city pair under all its flight numbers, including this one, and those ran 85.9% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1191thin sample | 364 | 89.2% | 63 min | 0.27% | A+ |
| All United Airlines on BUR–DEN | 881 | 85.9% | 65 min | 0.45% | A+ |
| All carriers on BUR–DEN | 2,219 | 84.0% | 68 min | 0.59% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1191 quarter by quarter
UA 1191 did not run the same all year. Its best quarter was Apr–Jun 2026 at 95.6% on time and its weakest Jul–Sep 2025 at 84.8%, a swing of 11 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 flights84.8%
- Oct–Dec 202591 flights89.0%
- Jan–Mar 202690 flights87.6%
- Apr–Jun 202691 flights95.6%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1191 ranged from 84.6% on Friday to 94.1% on Saturday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why UA 1191 runs late
One category carries most of the weight here. National Airspace System accounts for 48% of the 2,466 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.
- 48%National Airspace System
- 31%Carrier
- 21%Late-arriving aircraft
48% 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 1,188 minutes out of 2,466, against a national NAS share of 21%. The split is drawn from 2,466 delay minutes reported on UA 1191.
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 3.3% 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 850 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on one other city pair in the data, including DEN to BZN (36), but none flew often enough under UA 1191 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BUR to DEN 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 1191
For a booking, UA 1191 has one of the better records a US domestic flight can show: 89.2% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- BUR to DEN, every carrier and departure
- DEN to BUR, the return direction
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.