Flight number record
UA 360
United Airlines · Denver to Philadelphia
- Route
- DEN → PHL
- Departs
- 17:40
- Flights
- 270
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 360, check with United Airlines.
UA 360 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 270 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so UA 360 runs 7 points behind the country as a whole. Across a thousand flights that is about 72 extra late arrivals.
Key figures
On time
70.4%
Arrivals under 15 minutes late, of 267 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
1.11%
National rate is 1.81%
1 hour+ late
10.9%
National rate is 8.1%
These figures cover 270 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When UA 360 flies
UA 360 flies DEN to PHL without a single fixed slot. Its most common scheduled departure was 17:40, used on 49 of 270 flights, with 17:57 (42 flights) and 17:55 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:4049 flights18.1%
- Departs 17:5742 flights15.6%
- Departs 17:5537 flights13.7%
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 17:40 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and UA 360 runs 2 points better at 70.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
UA 360 next to DEN to PHL
Every carrier on DEN to PHL combined arrived on time 73.1% of the time across 3,003 flights, so UA 360 is 3 points behind it. United flew 952 flights on the same city pair under all its flight numbers, including this one, and those ran 79.9% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 360thin sample | 270 | 70.4% | 71 min | 1.11% | C |
| All United Airlines on DEN–PHL | 952 | 79.9% | 66 min | 0.53% | B+ |
| All carriers on DEN–PHL | 3,003 | 73.1% | 76 min | 1.17% | C |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 360 quarter by quarter
UA 360 did not run the same all year. Its best quarter was Jan–Mar 2026 at 82.1% on time and its weakest Jul–Sep 2025 at 52.2%, a swing of 30 points on roughly 90 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 flights52.2%
- Oct–Dec 202591 flights78.0%
- Jan–Mar 202687 flights82.1%
Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 360 did best on Sunday at 77.8% on time and worst on Saturday at 65.8%. Each day rests on about 39 flights, so a gap of 12 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 360 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 49% of the 5,632 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.
- 49%Late-arriving aircraft
- 30%Carrier
- 20%National Airspace System
- 1%Extreme weather
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,632 reported delay minutes here, that single category outweighs weather by 33 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,632 delay minutes reported on UA 360.
Cancellations sit at 1.11% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 1,558 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The same number turns up on four other city pairs in the data, including LAX to DEN (139), BOS to LAX (94) and DEN to SEA (94), but none flew often enough under UA 360 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to PHL only.
One caution: this is a thin sample. 270 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 360
For a booking, read UA 360 as 70.4% on time with 1.11% cancelled over 270 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to PHL, every carrier and departure
- PHL to DEN, the return direction
- Denver International (DEN) delay statistics
- Philadelphia International (PHL) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.