Flight number record
UA 1823
United Airlines · Pensacola to Houston
- Route
- PNS → IAH
- Departs
- 07:00
- Flights
- 303
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 303 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 77.3%. That gap is worth roughly 143 fewer late arrivals for every thousand flights.
Key figures
On time
91.6%
Arrivals under 15 minutes late, of 299 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
1.32%
National rate is 1.89%
1 hour+ late
4.3%
National rate is 8.3%
These figures cover 303 flights between September 2025 and August 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.
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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 199 of 303 flights, with 06:15 (49 flights) next.
- Departs 07:00199 flights65.7%
- Departs 06:1549 flights16.2%
Scale runs 0% to 100%.
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.
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Against the route
UA 1823 next to PNS to IAH
Every carrier on PNS to IAH combined arrived on time 85.0% of the time across 532 flights, so UA 1823 is 7 points ahead of it. Across its whole network United Airlines managed 78.8%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1823thin sample | 303 | 91.6% | 97 min | 1.32% | A |
| All United Airlines on PNS–IAH | 418 | 91.3% | 84 min | 1.20% | A |
| All carriers on PNS–IAH | 532 | 85.0% | 98 min | 0.94% | A+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 76 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 202527 flights—
- Oct–Dec 202591 flights85.6%
- Jan–Mar 202632 flights96.7%
- Apr–Jun 202691 flights94.5%
- Jul–Sep 202662 flights90.2%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1823 ranged from 86.4% on Saturday to 97.6% on Wednesday. With about 43 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.
Arrival by arrival
How late UA 1823 runs when it is late
UA 1823 often beats the schedule: 150 of 299 completed flights, 50%, arrived 15 minutes or more early. When UA 1823 is late it tends to be very late: 13 of its 25 late arrivals were an hour or more behind, and 7 were two hours or more.
- 15+ min early150 flights50.2%
- Within 15 min124 flights41.5%
- 15–29 min late5 flights1.7%
- 30–59 min late7 flights2.3%
- 1–2 hours late6 flights2.0%
- 2+ hours late7 flights2.3%
Scale runs 0% to 100%.
Share of 299 completed flights by arrival against schedule.
A late pushback is often recovered here: of 25 departures that left 15 minutes late or more, 9 still arrived on time. 9 flights left on time and still arrived late.
The worst days
Worst days for UA 1823
The latest arrival of the period was on 17 March 2026, 4 hours 21 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 March 2026 | 4 hours 21 minutes | Carrier |
| 30 July 2026 | 3 hours 50 minutes | Carrier |
| 15 December 2025 | 3 hours 41 minutes | Carrier |
| 25 December 2025 | 3 hours 38 minutes | Late-arriving aircraft |
| 1 May 2026 | 3 hours 31 minutes | National Airspace System |
Delay causes
Why UA 1823 runs late
Carrier accounts for 49% of the 2,436 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 38%National Airspace System
- 9%Late-arriving aircraft
- 3%Extreme weather
38% 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 935 minutes out of 2,436, against a national NAS share of 21%. The split is drawn from 2,436 delay minutes reported on UA 1823.
Cancellations sit at 1.32% against a national 1.89%, 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 4.3% land an hour or more behind schedule, against 8.3% 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 six other city pairs in the data, including IAH to AUS (148), IAH to SLC (82) and PHL to IAH (36), 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. 303 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 1.32% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- George Bush Intercontinental (IAH) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.