Flight number record
UA 728
United Airlines · Columbus to Denver
- Route
- CMH → DEN
- Departs
- 08:55
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 728, check with United Airlines.
UA 728 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs an hour and a half. That rests on 365 flights, with a median arrival 8 minutes early.
Set against the rest of the country, UA 728's record is 8 points better than the US average of 77.6%. That gap is worth roughly 77 fewer late arrivals for every thousand flights.
Key figures
On time
85.3%
Arrivals under 15 minutes late, of 361 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.81%
1 hour+ late
4.2%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 2026. The median arrival is 8 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 728 flies
UA 728 flies CMH to DEN without a single fixed slot. Its most common scheduled departure was 08:55, used on 74 of 365 flights, with 08:45 (73 flights) and 08:35 (53 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 08:5574 flights20.3%
- Departs 08:4573 flights20.0%
- Departs 08:3553 flights14.5%
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 08:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 728 runs level with that at 85.3%. 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 728 next to CMH to DEN
Every carrier on CMH to DEN combined arrived on time 79.2% of the time across 1,768 flights, so UA 728 is 6 points ahead of it. United flew 729 flights on the same city pair under all its flight numbers, including this one, and those ran 81.9% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 728 | 365 | 85.3% | 84 min | 1.10% | A |
| All United Airlines on CMH–DEN | 729 | 81.9% | 72 min | 0.82% | B+ |
| All carriers on CMH–DEN | 1,768 | 79.2% | 67 min | 0.68% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 728 quarter by quarter
Quarter by quarter UA 728 held fairly steady: 89.1% in Jul–Sep 2025, 80.2% in Oct–Dec 2025, 81.6% in Jan–Mar 2026 and 90.1% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights89.1%
- Oct–Dec 202592 flights80.2%
- Jan–Mar 202690 flights81.6%
- Apr–Jun 202691 flights90.1%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 728 did best on Saturday at 95.9% on time and worst on Tuesday at 69.8%. Each day rests on about 52 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 728 runs late
One category carries most of the weight here. Carrier accounts for 61% of the 4,450 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.
- 61%Carrier
- 24%Late-arriving aircraft
- 15%National Airspace System
- 0%Extreme weather
The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,714 of the 4,450 delay minutes reported here. The split is drawn from 4,450 delay minutes reported on UA 728.
Cancellations sit at 1.10% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.2% 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 1,154 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 SJC (19), but none flew often enough under UA 728 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CMH to DEN 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 728
For a booking, UA 728 has one of the better records a US domestic flight can show: 85.3% on time and 1.10% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- CMH to DEN, every carrier and departure
- DEN to CMH, the return direction
- United Airlines 1389 on the same route78.4%
- John Glenn Columbus International (CMH) 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
- 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.