Flight number record
UA 2014
United Airlines · Denver to Boise
- Route
- DEN → BOI
- Departs
- 19:25
- Flights
- 339
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2014, check with United Airlines.
UA 2014 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 339 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so UA 2014 runs 9 points behind the country as a whole. Across a thousand flights that is about 86 extra late arrivals.
Key figures
On time
68.7%
Arrivals under 15 minutes late, of 339 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
10.0%
National rate is 8.3%
These figures cover 339 flights between September 2025 and August 2026. Beyond the headline rate, 10.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 2014 flies
UA 2014 flies DEN to BOI without a single fixed slot. Its most common scheduled departure was 19:25, used on 67 of 339 flights, with 19:15 (49 flights) and 19:20 (47 flights) next.
- Departs 19:2567 flights19.8%
- Departs 19:1549 flights14.5%
- Departs 19:2047 flights13.9%
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 19:25 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 2014 runs level with that at 68.7%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 2014 next to DEN to BOI
Every carrier on DEN to BOI combined arrived on time 76.3% of the time across 3,038 flights, so UA 2014 is 8 points behind it. United flew 919 flights on the same city pair under all its flight numbers, including this one, and those ran 76.8% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2014thin sample | 339 | 68.7% | 60 min | 0.00% | C+ |
| All United Airlines on DEN–BOI | 919 | 76.8% | 60 min | 0.00% | B+ |
| All carriers on DEN–BOI | 3,038 | 76.3% | 56 min | 0.10% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2014 quarter by quarter
UA 2014 did not run the same all year. Its best quarter was Oct–Dec 2025 at 81.1% on time and its weakest Jul–Sep 2026 at 46.8%, a swing of 34 points on roughly 85 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 20256 flights—
- Oct–Dec 202590 flights81.1%
- Jan–Mar 202690 flights78.9%
- Apr–Jun 202691 flights60.4%
- Jul–Sep 202662 flights46.8%
Scale runs 40% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2014 did best on Saturday at 73.5% on time and worst on Friday at 60.4%. Each day rests on about 48 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2014 runs when it is late
The 106 late arrivals split 41 under half an hour, 31 between 30 and 60 minutes, and 34 an hour or more.
- 15+ min early31 flights9.1%
- Within 15 min202 flights59.6%
- 15–29 min late41 flights12.1%
- 30–59 min late31 flights9.1%
- 1–2 hours late22 flights6.5%
- 2+ hours late12 flights3.5%
Scale runs 0% to 100%.
Share of 339 completed flights by arrival against schedule.
16 of 99 late departures made up the time and arrived on time, 16% of them. In the other direction, 23 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BOI.
The worst days
Worst days for UA 2014
The latest arrival of the period was on 14 August 2026, 5 hours 47 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Four of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 August 2026 | 5 hours 47 minutes | Carrier |
| 20 August 2026 | 5 hours 3 minutes | Late-arriving aircraft |
| 21 August 2026 | 3 hours 56 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 43 minutes | Carrier |
| 29 July 2026 | 3 hours 42 minutes | Late-arriving aircraft |
Delay causes
Why UA 2014 runs late
Late-arriving aircraft accounts for 55% of the 6,368 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 31%Carrier
- 14%National Airspace System
- 0%Extreme weather
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,368 reported delay minutes here, that single category outweighs weather by 55 to one. The split is drawn from 6,368 delay minutes reported on UA 2014.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
10.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 649 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 CID to DEN (24), but none flew often enough under UA 2014 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to BOI only.
One caution: this is a thin sample. 339 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 2014
For a booking, UA 2014 is one of the weaker ways to fly DEN to BOI: 8 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- DEN to BOI, every carrier and departure
- BOI to DEN, the return direction
- SkyWest Airlines 5923 on the same route71.8%
- 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.