Flight number record
UA 708
United Airlines · Kansas City to Denver
- Route
- MCI → DEN
- Departs
- 13:50
- Flights
- 285
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 708, check with United Airlines.
UA 708 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 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 285 flights, with a median arrival 12 minutes early.
Set against the rest of the country, UA 708's record is 11 points better than the US average of 77.3%. That gap is worth roughly 114 fewer late arrivals for every thousand flights.
Key figures
On time
88.7%
Arrivals under 15 minutes late, of 282 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
0.35%
National rate is 1.89%
1 hour+ late
2.8%
National rate is 8.3%
These figures cover 285 flights between September 2025 and August 2026. The median arrival is 12 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 708 flies
UA 708 flies MCI to DEN without a single fixed slot. Its most common scheduled departure was 13:50, used on 73 of 285 flights, with 13:42 (37 flights) and 13:54 (32 flights) next.
- Departs 13:5073 flights25.6%
- Departs 13:4237 flights13.0%
- Departs 13:5432 flights11.2%
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 13:50 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 708 runs 10 points better at 88.7%. 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 708 next to MCI to DEN
Every carrier on MCI to DEN combined arrived on time 78.1% of the time across 4,370 flights, so UA 708 is 11 points ahead of it. United flew 1,297 flights on the same city pair under all its flight numbers, including this one, and those ran 81.0% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 708thin sample | 285 | 88.7% | 47 min | 0.35% | A+ |
| All United Airlines on MCI–DEN | 1,297 | 81.0% | 62 min | 0.54% | B+ |
| All carriers on MCI–DEN | 4,370 | 78.1% | 67 min | 0.53% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 708 quarter by quarter
UA 708 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Oct–Dec 2025 at 75.6%, a swing of 21 points on roughly 57 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 202530 flights96.7%
- Oct–Dec 202541 flights75.6%
- Jan–Mar 202661 flights90.2%
- Apr–Jun 202691 flights88.8%
- Jul–Sep 202662 flights91.8%
Scale runs 65% to 100%.
By weekday, UA 708 ranged from 82.5% on Friday to 92.7% on Wednesday. With about 41 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.
Arrival by arrival
How late UA 708 runs when it is late
UA 708 often beats the schedule: 109 of 282 completed flights, 39%, arrived 15 minutes or more early. Most of the lateness is short. 17 of the 32 late arrivals were under half an hour behind, and 8 reached an hour or more.
- 15+ min early109 flights38.7%
- Within 15 min141 flights50.0%
- 15–29 min late17 flights6.0%
- 30–59 min late7 flights2.5%
- 1–2 hours late5 flights1.8%
- 2+ hours late3 flights1.1%
Scale runs 0% to 100%.
Share of 282 completed flights by arrival against schedule.
5 of 26 late departures made up the time and arrived on time, 19% of them. 11 flights left on time and still arrived late.
The worst days
Worst days for UA 708
The latest arrival of the period was on 17 February 2026, 3 hours 20 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 February 2026 | 3 hours 20 minutes | Late-arriving aircraft |
| 25 February 2026 | 2 hours 52 minutes | National Airspace System |
| 30 June 2026 | 2 hours 16 minutes | Late-arriving aircraft |
| 12 October 2025 | 1 hour 42 minutes | Carrier |
| 14 October 2025 | 1 hour 24 minutes | Late-arriving aircraft |
Delay causes
Why UA 708 runs late
National Airspace System accounts for 43% of the 1,498 delay minutes carriers reported here, and the remaining four split what is left.
- 43%National Airspace System
- 37%Late-arriving aircraft
- 20%Carrier
37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,498 reported delay minutes here, that single category outweighs weather by 37 to one. The split is drawn from 1,498 delay minutes reported on UA 708.
Cancellations are rare at 0.35%, below the national 1.89% 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 2.8% land an hour or more behind schedule, against 8.3% 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 533 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 six other city pairs in the data, including ORD to MCI (124), IAD to ORD (36) and ORD to DCA (33), but none flew often enough under UA 708 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MCI to DEN only.
One caution: this is a thin sample. 285 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 708
For a booking, UA 708 has one of the better records a US domestic flight can show: 88.7% on time and 0.35% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- MCI to DEN, every carrier and departure
- DEN to MCI, the return direction
- Frontier Airlines 3375 on the same route79.6%
- United Airlines 2123 on the same route65.1%
- Kansas City International (MCI) 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.