Flight number record
UA 1711
United Airlines · Houston to Austin
- Route
- IAH → AUS
- Departs
- 16:20
- Flights
- 333
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1711, check with United Airlines.
UA 1711 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 333 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so UA 1711 runs 9 points behind the country as a whole. Across a thousand flights that is about 88 extra late arrivals.
Key figures
On time
68.5%
Arrivals under 15 minutes late, of 330 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
0.60%
National rate is 1.89%
1 hour+ late
7.9%
National rate is 8.3%
These figures cover 333 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When UA 1711 flies
UA 1711 flies IAH to AUS without a single fixed slot. Its most common scheduled departure was 16:20, used on 246 of 333 flights.
- Departs 16:20246 flights73.9%
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 16:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 1711 runs 3 points worse at 68.5%. 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 1711 next to IAH to AUS
Every carrier on IAH to AUS combined arrived on time 80.2% of the time across 2,671 flights, so UA 1711 is 12 points behind it. United flew 2,645 flights on the same city pair under all its flight numbers, including this one, and those ran 80.1% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1711thin sample | 333 | 68.5% | 55 min | 0.60% | C+ |
| All United Airlines on IAH–AUS | 2,645 | 80.1% | 62 min | 0.72% | B+ |
| All carriers on IAH–AUS | 2,671 | 80.2% | 62 min | 0.71% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1711 quarter by quarter
UA 1711 did not run the same all year. Its best quarter was Jul–Sep 2025 at 73.3% on time and its weakest Oct–Dec 2025 at 62.5%, a swing of 11 points on roughly 67 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 202530 flights73.3%
- Oct–Dec 202589 flights62.5%
- Jan–Mar 202689 flights72.7%
- Apr–Jun 202689 flights69.3%
- Jul–Sep 202636 flights66.7%
Scale runs 55% to 80%.
By weekday, UA 1711 did best on Tuesday at 79.6% on time and worst on Thursday at 58.3%. Each day rests on about 48 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1711 runs when it is late
The 104 late arrivals split 39 under half an hour, 39 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early39 flights11.8%
- Within 15 min187 flights56.7%
- 15–29 min late39 flights11.8%
- 30–59 min late39 flights11.8%
- 1–2 hours late16 flights4.8%
- 2+ hours late10 flights3.0%
Scale runs 0% to 100%.
Share of 330 completed flights by arrival against schedule.
10 of 77 late departures made up the time and arrived on time, 13% of them. In the other direction, 37 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 AUS.
The worst days
Worst days for UA 1711
The latest arrival of the period was on 16 March 2026, 4 hours 57 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 March 2026 | 4 hours 57 minutes | Late-arriving aircraft |
| 24 October 2025 | 4 hours 30 minutes | Late-arriving aircraft |
| 11 March 2026 | 3 hours 58 minutes | Late-arriving aircraft |
| 7 March 2026 | 3 hours 29 minutes | Extreme weather |
| 10 August 2026 | 3 hours 28 minutes | Late-arriving aircraft |
Delay causes
Why UA 1711 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 5,715 reported delay minutes.
- 36%National Airspace System
- 35%Late-arriving aircraft
- 25%Carrier
- 4%Extreme weather
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,715 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 5,715 delay minutes reported on UA 1711.
Cancellations are rare at 0.60%, 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
7.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
UA 1711 is not only a IAH to AUS flight. It also flew LAS to IAH (266 flights, 90.2% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 333 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| LAS to IAHthin sample | 266 | 90.2% | 116 min | 0.00% | A+ |
What to do with this
Booking UA 1711
For a booking, UA 1711 is one of the weaker ways to fly IAH to AUS: 12 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- IAH to AUS, every carrier and departure
- AUS to IAH, the return direction
- United Airlines 1859 on the same route82.7%
- United Airlines 2621 on the same route73.8%
- United Airlines 1179 on the same route80.5%
- George Bush Intercontinental (IAH) delay statistics
- Austin-Bergstrom International (AUS) 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.