Flight number record

UA 2056

United Airlines · Los Angeles to San Francisco

Route: LAX → SFO
Departs: 21:30
Flights: 262
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2056, check with United Airlines.

UA 2056 draws a D+. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 262 flights, with a median arrival 5 minutes late.

The national on-time rate over the same period is 77.6%, so UA 2056 runs 15 points behind the country as a whole. Across a thousand flights that is about 151 extra late arrivals.

On time

62.5%

Arrivals under 15 minutes late, of 261 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

0.38%

National rate is 1.81%

1 hour+ late

11.9%

National rate is 8.1%

These figures cover 262 flights between July 2025 and June 2026. Beyond the headline rate, 11.9% 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 2056 flies

UA 2056 flies LAX to SFO without a single fixed slot. Its most common scheduled departure was 21:30, used on 91 of 262 flights, with 21:34 (52 flights) and 21:40 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:3091 flights34.7%
Departs 21:3452 flights19.8%
Departs 21:4032 flights12.2%

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 21:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and UA 2056 runs 8 points worse at 62.5%. 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 2056 next to LAX to SFO

Every carrier on LAX to SFO combined arrived on time 64.8% of the time across 11,013 flights, so UA 2056 is 2 points behind it. United flew 3,257 flights on the same city pair under all its flight numbers, including this one, and those ran 66.3% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 17 points.

UA 2056 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2056thin sample	262	62.5%	59 min	0.38%	D+
All United Airlines on LAX–SFO	3,257	66.3%	57 min	0.25%	C+
All carriers on LAX–SFO	11,013	64.8%	59 min	0.83%	D+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2056 quarter by quarter

UA 2056 did not run the same all year. Its best quarter was Jan–Mar 2026 at 83.1% on time and its weakest Apr–Jun 2026 at 36.8%, a swing of 46 points on roughly 66 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 202539 flights60.5%
Oct–Dec 202583 flights60.2%
Jan–Mar 202683 flights83.1%
Apr–Jun 202657 flights36.8%

Scale runs 30% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2056 did best on Tuesday at 87.1% on time and worst on Sunday at 48.8%. Each day rests on about 37 flights, so a gap of 38 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2056 runs late

One category carries most of the weight here. National Airspace System accounts for 55% of the 5,785 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.

National Airspace System
55%
Late-arriving aircraft
32%
Carrier
13%

55% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 3,183 minutes out of 5,785, against a national NAS share of 21%. The split is drawn from 5,785 delay minutes reported on UA 2056.

Cancellations are rare at 0.38%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.9% 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.

The same number turns up on six other city pairs in the data, including SFO to ORD (98), IAD to ORD (37) and SFO to AUS (36), but none flew often enough under UA 2056 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to SFO only.

One caution: this is a thin sample. 262 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 2056

For a booking, read UA 2056 as 62.5% on time with 0.38% cancelled over 262 flights. Those are rates from the past twelve months, not a forecast for any particular 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