Flight number record
UA 1030
United Airlines · Houston to Atlanta
- Route
- IAH → ATL
- Departs
- 07:20
- Flights
- 258
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1030, check with United Airlines.
UA 1030 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 a little over an hour. That rests on 258 flights, with a median arrival 9 minutes early.
Set against the rest of the country, UA 1030's record is 13 points better than the US average of 77.3%. That gap is worth roughly 133 fewer late arrivals for every thousand flights.
Key figures
On time
90.6%
Arrivals under 15 minutes late, of 256 completed flights
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
0.39%
National rate is 1.89%
1 hour+ late
3.1%
National rate is 8.3%
These figures cover 258 flights between September 2025 and August 2026. The median arrival is 9 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 1030 flies
UA 1030 flies IAH to ATL without a single fixed slot. Its most common scheduled departure was 07:20, used on 98 of 258 flights, with 07:35 (70 flights) and 07:39 (42 flights) next.
- Departs 07:2098 flights38.0%
- Departs 07:3570 flights27.1%
- Departs 07:3942 flights16.3%
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 1030 runs level with that at 90.6%. 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 1030 next to IAH to ATL
Every carrier on IAH to ATL combined arrived on time 76.8% of the time across 4,960 flights, so UA 1030 is 14 points ahead of it. United flew 1,283 flights on the same city pair under all its flight numbers, including this one, and those ran 79.8% on time. 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 1030thin sample | 258 | 90.6% | 80 min | 0.39% | A+ |
| All United Airlines on IAH–ATL | 1,283 | 79.8% | 64 min | 0.47% | B+ |
| All carriers on IAH–ATL | 4,960 | 76.8% | 68 min | 1.92% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1030 quarter by quarter
UA 1030 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.9% on time and its weakest Jul–Sep 2026 at 82.3%, a swing of 13 points on roughly 65 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 202547 flights93.6%
- Jan–Mar 202670 flights91.3%
- Apr–Jun 202679 flights94.9%
- Jul–Sep 202662 flights82.3%
Scale runs 75% to 100%.
By weekday, UA 1030 did best on Wednesday at 95.1% on time and worst on Sunday at 82.4%. Each day rests on about 37 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1030 runs when it is late
UA 1030 often beats the schedule: 67 of 256 completed flights, 26%, arrived 15 minutes or more early. The 24 late arrivals split 5 under half an hour, 11 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early67 flights26.2%
- Within 15 min165 flights64.5%
- 15–29 min late5 flights2.0%
- 30–59 min late11 flights4.3%
- 1–2 hours late4 flights1.6%
- 2+ hours late4 flights1.6%
Scale runs 0% to 100%.
Share of 256 completed flights by arrival against schedule.
5 of 22 late departures made up the time and arrived on time, 23% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for UA 1030
The latest arrival of the period was on 30 August 2026, 5 hours 35 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 |
|---|---|---|
| 30 August 2026 | 5 hours 35 minutes | Late-arriving aircraft |
| 16 March 2026 | 4 hours 51 minutes | Late-arriving aircraft |
| 6 August 2026 | 4 hours 19 minutes | Late-arriving aircraft |
| 7 December 2025 | 2 hours 14 minutes | National Airspace System |
| 28 April 2026 | 1 hour 54 minutes | National Airspace System |
Delay causes
Why UA 1030 runs late
Late-arriving aircraft accounts for 48% of the 1,929 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 27%National Airspace System
- 24%Carrier
- 1%Extreme weather
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,929 reported delay minutes here, that single category outweighs weather by 48 to one. The split is drawn from 1,929 delay minutes reported on UA 1030.
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 3.1% 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 689 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 twelve other city pairs in the data, including ORD to IAD (55), IAD to PDX (55) and PDX to IAH (31), but none flew often enough under UA 1030 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to ATL only.
One caution: this is a thin sample. 258 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 1030
For a booking, UA 1030 has one of the better records a US domestic flight can show: 90.6% on time and 0.39% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IAH to ATL, every carrier and departure
- ATL to IAH, the return direction
- Delta Air Lines 1315 on the same route88.3%
- Frontier Airlines 1404 on the same route68.3%
- Delta Air Lines 1069 on the same route91.9%
- Delta Air Lines 1682 on the same route78.2%
- Delta Air Lines 1585 on the same route77.8%
- Delta Air Lines 1572 on the same route78.1%
- George Bush Intercontinental (IAH) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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.