Flight number record
UA 544
United Airlines · Houston to Cleveland
- Route
- IAH → CLE
- Departs
- 07:20
- Flights
- 362
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 544, check with United Airlines.
UA 544 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 362 flights, with a median arrival 8 minutes early.
Set against the rest of the country, UA 544's record is 13 points better than the US average of 77.3%. That gap is worth roughly 130 fewer late arrivals for every thousand flights.
Key figures
On time
90.3%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
51 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
2.2%
National rate is 8.3%
These figures cover 362 flights between September 2025 and August 2026. The median arrival is 8 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 544 flies
UA 544 flies IAH to CLE without a single fixed slot. Its most common scheduled departure was 07:20, used on 117 of 362 flights, with 07:35 (72 flights) next.
- Departs 07:20117 flights32.3%
- Departs 07:3572 flights19.9%
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 07:20 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 544 runs level with that at 90.3%. 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 544 next to IAH to CLE
Every carrier on IAH to CLE combined arrived on time 85.1% of the time across 815 flights, so UA 544 is 5 points ahead of it. Across its whole network United Airlines managed 78.8%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 544thin sample | 362 | 90.3% | 51 min | 0.00% | A+ |
| All United Airlines on IAH–CLE | 815 | 85.1% | 55 min | 0.12% | A+ |
| All carriers on IAH–CLE | 815 | 85.1% | 55 min | 0.12% | A+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 544 quarter by quarter
Quarter by quarter UA 544 held fairly steady: 90.0% in Jul–Sep 2025, 84.8% in Oct–Dec 2025, 93.1% in Jan–Mar 2026, 92.3% in Apr–Jun 2026 and 91.9% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights84.8%
- Jan–Mar 202687 flights93.1%
- Apr–Jun 202691 flights92.3%
- Jul–Sep 202662 flights91.9%
Scale runs 75% to 100%.
By weekday, UA 544 did best on Wednesday at 96.1% on time and worst on Tuesday at 82.7%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 544 runs when it is late
UA 544 often beats the schedule: 100 of 362 completed flights, 28%, arrived 15 minutes or more early. The 35 late arrivals split 15 under half an hour, 12 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early100 flights27.6%
- Within 15 min227 flights62.7%
- 15–29 min late15 flights4.1%
- 30–59 min late12 flights3.3%
- 1–2 hours late5 flights1.4%
- 2+ hours late3 flights0.8%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
10 of 36 late departures made up the time and arrived on time, 28% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for UA 544
The latest arrival of the period was on 22 February 2026, 3 hours 47 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 February 2026 | 3 hours 47 minutes | Late-arriving aircraft |
| 15 August 2026 | 3 hours 5 minutes | Carrier |
| 18 November 2025 | 2 hours 40 minutes | Late-arriving aircraft |
| 7 September 2025 | 1 hour 43 minutes | Late-arriving aircraft |
| 11 August 2026 | 1 hour 34 minutes | Carrier |
Delay causes
Why UA 544 runs late
Late-arriving aircraft accounts for 44% of the 1,790 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 42%Carrier
- 13%National Airspace System
- 1%Extreme weather
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,790 reported delay minutes here, that single category outweighs weather by 44 to one. The split is drawn from 1,790 delay minutes reported on UA 544.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are 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 2.2% 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 1,091 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on three other city pairs in the data, including ABQ to IAH (1), BUR to SFO (1) and ORD to MIA (1), but none flew often enough under UA 544 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to CLE only.
One caution: this is a thin sample. 362 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 544
For a booking, UA 544 has one of the better records a US domestic flight can show: 90.3% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IAH to CLE, every carrier and departure
- CLE to IAH, the return direction
- United Airlines 1934 on the same route82.0%
- George Bush Intercontinental (IAH) delay statistics
- Cleveland Hopkins International (CLE) 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
- Why the first flight of the morning is statistically safest
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.