Flight number record

UA 1071

United Airlines · San Diego to Washington

Route: SAN → IAD
Departs: 08:00
Flights: 352
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1071, check with United Airlines.

UA 1071 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 352 flights, with a median arrival 14 minutes early.

Set against the rest of the country, UA 1071's record is 9 points better than the US average of 77.6%. That gap is worth roughly 91 fewer late arrivals for every thousand flights.

On time

86.7%

Arrivals under 15 minutes late, of 347 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

0.28%

National rate is 1.81%

1 hour+ late

3.5%

National rate is 8.1%

These figures cover 352 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 1071 flies

UA 1071 flies SAN to IAD without a single fixed slot. Its most common scheduled departure was 08:00, used on 146 of 352 flights, with 08:30 (82 flights) and 07:45 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:00146 flights41.5%
Departs 08:3082 flights23.3%
Departs 07:4549 flights13.9%

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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 1071 runs 3 points better at 86.7%. 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 1071 next to SAN to IAD

Every carrier on SAN to IAD combined arrived on time 89.0% of the time across 1,400 flights, so UA 1071 is 2 points behind it. United flew 1,040 flights on the same city pair under all its flight numbers, including this one, and those ran 89.5% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 8 points.

UA 1071 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1071thin sample	352	86.7%	63 min	0.28%	A+
All United Airlines on SAN–IAD	1,040	89.5%	87 min	0.48%	A+
All carriers on SAN–IAD	1,400	89.0%	78 min	0.57%	A+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1071 quarter by quarter

UA 1071 did not run the same all year. Its best quarter was Oct–Dec 2025 at 91.2% on time and its weakest Jan–Mar 2026 at 80.5%, a swing of 11 points on roughly 88 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 flights85.6%
Oct–Dec 202592 flights91.2%
Jan–Mar 202678 flights80.5%
Apr–Jun 202690 flights88.8%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1071 did best on Saturday at 94.0% on time and worst on Friday at 80.8%. Each day rests on about 50 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1071 runs late

One category carries most of the weight here. National Airspace System accounts for 49% of the 2,910 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
49%
Carrier
48%
Late-arriving aircraft
2%
Extreme weather
1%

The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,389 of the 2,910 delay minutes reported here. The split is drawn from 2,910 delay minutes reported on UA 1071.

Cancellations are rare at 0.28%, 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 3.5% 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.

At 2,253 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 three other city pairs in the data, including IAD to JAX (109), IAD to DEN (31) and IAD to BNA (26), but none flew often enough under UA 1071 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SAN to IAD only.

One caution: this is a thin sample. 352 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 1071

For a booking, UA 1071 has one of the better records a US domestic flight can show: 86.7% on time and 0.28% 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