Flight number record

UA 2476

United Airlines · San Diego to Denver

Route: SAN → DEN
Departs: 08:45
Flights: 334
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2476, check with United Airlines.

UA 2476 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 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 334 flights, with a median arrival 14 minutes early.

Set against the rest of the country, UA 2476's record is 12 points better than the US average of 77.6%. That gap is worth roughly 119 fewer late arrivals for every thousand flights.

On time

89.5%

Arrivals under 15 minutes late, of 332 completed flights

Avg delay

104 min

Across delayed arrivals only, not all flights

Cancelled

0.60%

National rate is 1.81%

1 hour+ late

5.4%

National rate is 8.1%

These figures cover 334 flights between July 2025 and June 2026. The median arrival is 14 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 2476 flies

UA 2476 flies SAN to DEN without a single fixed slot. Its most common scheduled departure was 08:45, used on 131 of 334 flights, with 09:00 (109 flights) and 09:02 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:45131 flights39.2%
Departs 09:00109 flights32.6%
Departs 09:0237 flights11.1%

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 08:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 2476 runs 5 points better at 89.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

UA 2476 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 2476 is 10 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 85.4% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 11 points.

UA 2476 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2476thin sample	334	89.5%	104 min	0.60%	A+
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 2476 quarter by quarter

Quarter by quarter UA 2476 held fairly steady: 91.8% in Jul–Sep 2025, 90.1% in Oct–Dec 2025, 86.7% in Jan–Mar 2026 and 90.0% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202561 flights91.8%
Oct–Dec 202592 flights90.1%
Jan–Mar 202690 flights86.7%
Apr–Jun 202691 flights90.0%

Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2476 ranged from 85.1% on Friday to 95.8% on Saturday. With about 48 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.

Delay causes

Why UA 2476 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 3,635 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.

Late-arriving aircraft
43%
Carrier
30%
National Airspace System
26%
Extreme weather
0%

43% 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 3,635 reported delay minutes here, that single category outweighs weather by 43 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 3,635 delay minutes reported on UA 2476.

Cancellations are rare at 0.60%, 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

5.4% 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 close to two hours, 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 five other city pairs in the data, including DEN to CLE (90), DEN to CHS (77) and DEN to TPA (68), but none flew often enough under UA 2476 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. 334 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 2476

For a booking, UA 2476 has one of the better records a US domestic flight can show: 89.5% on time and 0.60% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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.

Key figures