Flight number record
UA 682
United Airlines · San Diego to Denver
- Route
- SAN → DEN
- Departs
- 16:10
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 682, check with United Airlines.
UA 682 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 364 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so UA 682 runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.
Key figures
On time
73.5%
Arrivals under 15 minutes late, of 358 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.81%
1 hour+ late
8.4%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 8.4% 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 682 flies
UA 682 flies SAN to DEN without a single fixed slot. Its most common scheduled departure was 16:10, used on 161 of 364 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 16:10161 flights44.2%
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 16:10 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and UA 682 runs level with that at 73.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 682 next to SAN to DEN
Every carrier on SAN to DEN combined arrived on time 79.2% of the time across 5,947 flights, so UA 682 is 6 points behind it. United flew 2,081 flights on the same city pair under all its flight numbers, including this one, and those ran 85.4% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 682thin sample | 364 | 73.5% | 56 min | 1.37% | C |
| All United Airlines on SAN–DEN | 2,081 | 85.4% | 65 min | 0.77% | A+ |
| All carriers on SAN–DEN | 5,947 | 79.2% | 60 min | 0.89% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 682 quarter by quarter
UA 682 did not run the same all year. Its best quarter was Jan–Mar 2026 at 82.2% on time and its weakest Jul–Sep 2025 at 56.2%, a swing of 26 points on roughly 91 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 flights56.2%
- Oct–Dec 202591 flights79.5%
- Jan–Mar 202690 flights82.2%
- Apr–Jun 202691 flights75.8%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 682 did best on Saturday at 84.6% on time and worst on Thursday at 66.0%. Each day rests on about 52 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 682 runs late
One category carries most of the weight here. National Airspace System accounts for 44% of the 5,302 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.
- 44%National Airspace System
- 38%Late-arriving aircraft
- 15%Carrier
- 3%Extreme weather
38% 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 5,302 reported delay minutes here, that single category outweighs weather by 12 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 5,302 delay minutes reported on UA 682.
Cancellations sit at 1.37% against a national 1.81%, which is ordinary. Diversions add another 0.27%.
Connections and routes
What a delay on this flight costs
8.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
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 two other city pairs in the data, including SFO to SAN (68) and DEN to MCI (31), but none flew often enough under UA 682 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SAN to DEN only.
One caution: this is a thin sample. 364 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 682
For a booking, UA 682 is one of the weaker ways to fly SAN to DEN: 6 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
- SAN to DEN, every carrier and departure
- DEN to SAN, the return direction
- Frontier Airlines 2818 on the same route84.4%
- United Airlines 2476 on the same route89.5%
- United Airlines 1337 on the same route88.5%
- United Airlines 519 on the same route85.1%
- San Diego International (SAN) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.