Flight number record

UA 1823

United Airlines · Pensacola to Houston

Route: PNS → IAH
Departs: 07:00
Flights: 253
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1823, check with United Airlines.

UA 1823 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 14 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.1 hours. That rests on 253 flights, with a median arrival 15 minutes early.

Set against the rest of the country, UA 1823's record is 14 points better than the US average of 77.6%. That gap is worth roughly 140 fewer late arrivals for every thousand flights.

On time

91.6%

Arrivals under 15 minutes late, of 250 completed flights

Avg delay

129 min

Across delayed arrivals only, not all flights

Cancelled

1.19%

National rate is 1.81%

1 hour+ late

4.0%

National rate is 8.1%

These figures cover 253 flights between July 2025 and June 2026. The median arrival is 15 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 1823 flies

UA 1823 flies PNS to IAH without a single fixed slot. Its most common scheduled departure was 07:00, used on 147 of 253 flights, with 06:15 (49 flights) and 06:30 (28 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00147 flights58.1%
Departs 06:1549 flights19.4%
Departs 06:3028 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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 1823 runs 2 points better at 91.6%. 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 1823 next to PNS to IAH

Every carrier on PNS to IAH combined arrived on time 83.1% of the time across 607 flights, so UA 1823 is 9 points ahead of it. United flew 425 flights on the same city pair under all its flight numbers, including this one, and those ran 91.4% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 13 points.

UA 1823 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1823thin sample	253	91.6%	129 min	1.19%	A
All United Airlines on PNS–IAH	425	91.4%	110 min	1.88%	A
All carriers on PNS–IAH	607	83.1%	110 min	1.65%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1823 quarter by quarter

UA 1823 did not run the same all year. Its best quarter was Jan–Mar 2026 at 96.7% on time and its weakest Oct–Dec 2025 at 85.6%, a swing of 11 points on roughly 63 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 flights94.9%
Oct–Dec 202591 flights85.6%
Jan–Mar 202632 flights96.7%
Apr–Jun 202691 flights94.5%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1823 ranged from 86.1% on Sunday to 97.1% on Wednesday. With about 36 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 1823 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,699 reported delay minutes.

Late-arriving aircraft
42%
National Airspace System
29%
Carrier
27%
Extreme weather
2%

42% 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 2,699 reported delay minutes here, that single category outweighs weather by 23 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 2,699 delay minutes reported on UA 1823.

Cancellations sit at 1.19% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.0% 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.

The same number turns up on eight other city pairs in the data, including IAH to SLC (95), IAH to AUS (87) and ORD to IAH (39), but none flew often enough under UA 1823 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PNS to IAH only.

One caution: this is a thin sample. 253 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 1823

For a booking, UA 1823 has one of the better records a US domestic flight can show: 91.6% on time and 1.19% 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