Flight number record
UA 1302
United Airlines · Denver to San Diego
- Route
- DEN → SAN
- Departs
- 13:37
- Flights
- 345
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1302, check with United Airlines.
UA 1302 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 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 345 flights, with a median arrival 9 minutes early.
Set against the rest of the country, UA 1302's record is 10 points better than the US average of 77.6%. That gap is worth roughly 104 fewer late arrivals for every thousand flights.
Key figures
On time
88.0%
Arrivals under 15 minutes late, of 341 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
0.87%
National rate is 1.81%
1 hour+ late
4.4%
National rate is 8.1%
These figures cover 345 flights between July 2025 and June 2026. The median arrival is 9 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 1302 flies
UA 1302 flies DEN to SAN without a single fixed slot. Its most common scheduled departure was 13:37, used on 68 of 345 flights, with 13:26 (52 flights) and 13:44 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:3768 flights19.7%
- Departs 13:2652 flights15.1%
- Departs 13:4449 flights14.2%
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 13:37 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1302 runs 9 points better at 88.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 1302 next to DEN to SAN
Every carrier on DEN to SAN combined arrived on time 75.6% of the time across 5,949 flights, so UA 1302 is 12 points ahead of it. United flew 2,081 flights on the same city pair under all its flight numbers, including this one, and those ran 79.8% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1302thin sample | 345 | 88.0% | 62 min | 0.87% | A+ |
| All United Airlines on DEN–SAN | 2,081 | 79.8% | 59 min | 0.48% | B+ |
| All carriers on DEN–SAN | 5,949 | 75.6% | 56 min | 0.66% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1302 quarter by quarter
Quarter by quarter UA 1302 held fairly steady: 82.6% in Jul–Sep 2025, 91.8% in Oct–Dec 2025, 89.4% in Jan–Mar 2026 and 89.0% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights82.6%
- Oct–Dec 202577 flights91.8%
- Jan–Mar 202685 flights89.4%
- Apr–Jun 202691 flights89.0%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1302 did best on Saturday at 95.9% on time and worst on Monday at 79.6%. Each day rests on about 49 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1302 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,545 reported delay minutes.
- 41%Late-arriving aircraft
- 33%National Airspace System
- 25%Carrier
41% 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 2,545 reported delay minutes here, that single category outweighs weather by 41 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 2,545 delay minutes reported on UA 1302.
Cancellations are rare at 0.87%, below the national 1.81% 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 4.4% 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 853 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 seven other city pairs in the data, including SAN to SFO (108), SFO to SMF (31) and ORF to DEN (31), but none flew often enough under UA 1302 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to SAN only.
One caution: this is a thin sample. 345 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 1302
For a booking, UA 1302 has one of the better records a US domestic flight can show: 88.0% on time and 0.87% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- DEN to SAN, every carrier and departure
- SAN to DEN, the return direction
- United Airlines 540 on the same route65.7%
- United Airlines 2309 on the same route90.3%
- United Airlines 1940 on the same route82.0%
- United Airlines 1281 on the same route84.6%
- United Airlines 1835 on the same route65.7%
- Denver International (DEN) delay statistics
- San Diego International (SAN) 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.