Flight number record

UA 1768

United Airlines · Houston to San Francisco

Route: IAH → SFO
Departs: 07:20
Flights: 350
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1768, check with United Airlines.

UA 1768 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 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 40 minutes. That rests on 350 flights, with a median arrival 7 minutes early.

Set against the rest of the country, UA 1768's record is 11 points better than the US average of 77.6%. That gap is worth roughly 109 fewer late arrivals for every thousand flights.

On time

88.5%

Arrivals under 15 minutes late, of 348 completed flights

Avg delay

40 min

Across delayed arrivals only, not all flights

Cancelled

0.57%

National rate is 1.81%

1 hour+ late

1.7%

National rate is 8.1%

These figures cover 350 flights between July 2025 and June 2026. The median arrival is 7 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 1768 flies

UA 1768 flies IAH to SFO without a single fixed slot. Its most common scheduled departure was 07:20, used on 231 of 350 flights, with 07:37 (49 flights) and 07:25 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:20231 flights66.0%
Departs 07:3749 flights14.0%
Departs 07:2537 flights10.6%

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 07:20 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 1768 runs level with that at 88.5%. 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 1768 next to IAH to SFO

Every carrier on IAH to SFO combined arrived on time 78.6% of the time across 3,600 flights, so UA 1768 is 10 points ahead of it. Across its whole network United Airlines managed 79.0%, which this flight beats by 10 points.

UA 1768 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1768thin sample	350	88.5%	40 min	0.57%	A+
All United Airlines on IAH–SFO	3,600	78.6%	66 min	0.47%	B+
All carriers on IAH–SFO	3,600	78.6%	66 min	0.47%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1768 quarter by quarter

UA 1768 did not run the same all year. Its best quarter was Oct–Dec 2025 at 94.5% on time and its weakest Apr–Jun 2026 at 79.1%, a swing of 15 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 flights92.4%
Oct–Dec 202592 flights94.5%
Jan–Mar 202675 flights87.8%
Apr–Jun 202691 flights79.1%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1768 did best on Sunday at 95.8% on time and worst on Saturday at 81.6%. Each day rests on about 50 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1768 runs late

One category carries most of the weight here. Carrier accounts for 45% of the 1,581 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.

Carrier
45%
National Airspace System
39%
Late-arriving aircraft
15%
Extreme weather
1%

The largest share of delay minutes, 45%, 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 705 of the 1,581 delay minutes reported here. The split is drawn from 1,581 delay minutes reported on UA 1768.

Cancellations are rare at 0.57%, 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 1.7% 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 1,635 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 two other city pairs in the data, including SFO to BUR (79) and SFO to SBA (49), but none flew often enough under UA 1768 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to SFO only.

One caution: this is a thin sample. 350 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 1768

For a booking, UA 1768 has one of the better records a US domestic flight can show: 88.5% on time and 0.57% 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