Flight number record
UA 372
United Airlines · Billings to Denver
- Route
- BIL → DEN
- Departs
- 07:00
- Flights
- 318
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 372, check with United Airlines.
UA 372 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 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 318 flights, with a median arrival 18 minutes early.
Set against the rest of the country, UA 372's record is 15 points better than the US average of 77.3%. That gap is worth roughly 145 fewer late arrivals for every thousand flights.
Key figures
On time
91.8%
Arrivals under 15 minutes late, of 317 completed flights
Avg delay
104 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
3.8%
National rate is 8.3%
These figures cover 318 flights between September 2025 and August 2026. The median arrival is 18 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 372 flies
UA 372 flies BIL to DEN without a single fixed slot. Its most common scheduled departure was 07:00, used on 215 of 318 flights, with 06:30 (60 flights) and 06:35 (40 flights) next.
- Departs 07:00215 flights67.6%
- Departs 06:3060 flights18.9%
- Departs 06:3540 flights12.6%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 372 runs 3 points better at 91.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
UA 372 next to BIL to DEN
Every carrier on BIL to DEN combined arrived on time 82.5% of the time across 1,774 flights, so UA 372 is 9 points ahead of it. United flew 725 flights on the same city pair under all its flight numbers, including this one, and those ran 84.1% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 372thin sample | 318 | 91.8% | 104 min | 0.00% | A+ |
| All United Airlines on BIL–DEN | 725 | 84.1% | 85 min | 0.28% | B+ |
| All carriers on BIL–DEN | 1,774 | 82.5% | 89 min | 0.96% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 372 quarter by quarter
UA 372 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 87.0%, a swing of 13 points on roughly 80 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 flights100.0%
- Oct–Dec 202592 flights87.0%
- Jan–Mar 202690 flights90.0%
- Apr–Jun 202685 flights96.5%
- Jul–Sep 202621 flights—
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 372 ranged from 86.7% on Saturday to 97.8% on Monday. With about 45 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 372 runs when it is late
UA 372 often beats the schedule: 184 of 317 completed flights, 58%, arrived 15 minutes or more early. The 26 late arrivals split 8 under half an hour, 6 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early184 flights58.0%
- Within 15 min107 flights33.8%
- 15–29 min late8 flights2.5%
- 30–59 min late6 flights1.9%
- 1–2 hours late6 flights1.9%
- 2+ hours late6 flights1.9%
Scale runs 0% to 100%.
Share of 317 completed flights by arrival against schedule.
5 of 23 late departures made up the time and arrived on time, 22% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for UA 372
The latest arrival of the period was on 12 May 2026, 10 hours behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 May 2026 | 10 hours | Carrier |
| 18 October 2025 | 5 hours 19 minutes | Late-arriving aircraft |
| 12 December 2025 | 4 hours 52 minutes | Extreme weather |
| 17 December 2025 | 4 hours 1 minute | Carrier |
| 2 November 2025 | 2 hours 53 minutes | Carrier |
Delay causes
Why UA 372 runs late
Carrier accounts for 57% of the 2,715 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Carrier
- 24%Late-arriving aircraft
- 10%Extreme weather
- 9%National Airspace System
The largest share of delay minutes, 57%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,538 of the 2,715 delay minutes reported here. The split is drawn from 2,715 delay minutes reported on UA 372.
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
Badly late arrivals are rare here: only 3.8% 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 same number turns up on five other city pairs in the data, including DEN to PWM (56), LAX to SFO (47) and DEN to SRQ (25), but none flew often enough under UA 372 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BIL to DEN only.
One caution: this is a thin sample. 318 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 372
For a booking, UA 372 has one of the better records a US domestic flight can show: 91.8% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- BIL to DEN, every carrier and departure
- DEN to BIL, the return direction
- United Airlines 478 on the same route76.4%
- SkyWest Airlines 4758 on the same route71.4%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.