Flight number record
UA 410
United Airlines · Houston to Miami
- Route
- IAH → MIA
- Departs
- 12:00
- Flights
- 257
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 410, check with United Airlines.
UA 410 lands a B+, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 45 minutes on average. That rests on 257 flights, with a median arrival 8 minutes early.
Key figures
On time
81.1%
Arrivals under 15 minutes late, of 254 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
0.39%
National rate is 1.89%
1 hour+ late
3.9%
National rate is 8.3%
These figures cover 257 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 410 flies
UA 410 flies IAH to MIA without a single fixed slot. Its most common scheduled departure was 12:00, used on 77 of 257 flights, with 12:02 (35 flights) and 12:09 (32 flights) next.
- Departs 12:0077 flights30.0%
- Departs 12:0235 flights13.6%
- Departs 12:0932 flights12.5%
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 12:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 410 runs 3 points better at 81.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 410 next to IAH to MIA
Every carrier on IAH to MIA combined arrived on time 78.6% of the time across 3,665 flights, so UA 410 is 3 points ahead of it. United flew 1,438 flights on the same city pair under all its flight numbers, including this one, and those ran 82.0% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 410thin sample | 257 | 81.1% | 47 min | 0.39% | B+ |
| All United Airlines on IAH–MIA | 1,438 | 82.0% | 57 min | 0.28% | B+ |
| All carriers on IAH–MIA | 3,665 | 78.6% | 93 min | 1.28% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 410 quarter by quarter
UA 410 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.0% on time and its weakest Jul–Sep 2026 at 68.9%, a swing of 21 points on roughly 86 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.
- Oct–Dec 202514 flights—
- Jan–Mar 202690 flights90.0%
- Apr–Jun 202691 flights78.7%
- Jul–Sep 202662 flights68.9%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 410 did best on Tuesday at 88.6% on time and worst on Thursday at 70.3%. Each day rests on about 37 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 410 runs when it is late
UA 410 often beats the schedule: 79 of 254 completed flights, 31%, arrived 15 minutes or more early. The 48 late arrivals split 22 under half an hour, 16 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early79 flights31.1%
- Within 15 min127 flights50.0%
- 15–29 min late22 flights8.7%
- 30–59 min late16 flights6.3%
- 1–2 hours late7 flights2.8%
- 2+ hours late3 flights1.2%
Scale runs 0% to 100%.
Share of 254 completed flights by arrival against schedule.
6 of 27 late departures made up the time and arrived on time, 22% of them. In the other direction, 27 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MIA.
The worst days
Worst days for UA 410
The latest arrival of the period was on 15 June 2026, 3 hours 52 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 |
|---|---|---|
| 15 June 2026 | 3 hours 52 minutes | Late-arriving aircraft |
| 16 March 2026 | 3 hours 27 minutes | National Airspace System |
| 14 June 2026 | 2 hours 25 minutes | Late-arriving aircraft |
| 21 May 2026 | 1 hour 32 minutes | Carrier |
| 11 July 2026 | 1 hour 29 minutes | Late-arriving aircraft |
Delay causes
Why UA 410 runs late
National Airspace System accounts for 58% of the 2,231 delay minutes carriers reported here, and the remaining four split what is left.
- 58%National Airspace System
- 25%Late-arriving aircraft
- 14%Carrier
- 3%Extreme weather
58% 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 1,295 minutes out of 2,231, against a national NAS share of 21%. The split is drawn from 2,231 delay minutes reported on UA 410.
Cancellations are rare at 0.39%, below the national 1.89% 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 3.9% 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 964 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 four other city pairs in the data, including SAT to IAH (246), MIA to EWR (96) and SFO to MIA (52), but none flew often enough under UA 410 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to MIA only.
One caution: this is a thin sample. 257 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 410
For a booking, read UA 410 as 81.1% on time with 0.39% cancelled over 257 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- IAH to MIA, every carrier and departure
- MIA to IAH, the return direction
- American Airlines 1347 on the same route88.5%
- George Bush Intercontinental (IAH) delay statistics
- Miami International (MIA) 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.