Flight number record
UA 1326
United Airlines · Austin to Houston
- Route
- AUS → IAH
- Departs
- 17:59
- Flights
- 339
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1326, check with United Airlines.
UA 1326 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 a little over an hour behind schedule. That rests on 339 flights, with a median arrival 4 minutes late.
The national on-time rate over the same period is 77.3%, so UA 1326 runs 9 points behind the country as a whole. Across a thousand flights that is about 87 extra late arrivals.
Key figures
On time
68.6%
Arrivals under 15 minutes late, of 334 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
1.18%
National rate is 1.89%
1 hour+ late
10.2%
National rate is 8.3%
These figures cover 339 flights between September 2025 and August 2026. Beyond the headline rate, 10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 1326 flies
UA 1326 flies AUS to IAH without a single fixed slot. Its most common scheduled departure was 17:59, used on 88 of 339 flights, with 18:04 (72 flights) and 17:55 (37 flights) next.
- Departs 17:5988 flights26.0%
- Departs 18:0472 flights21.2%
- Departs 17:5537 flights10.9%
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 17:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 1326 runs level with that at 68.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 1326 next to AUS to IAH
Every carrier on AUS to IAH combined arrived on time 77.2% of the time across 2,670 flights, so UA 1326 is 9 points behind it. United flew 2,643 flights on the same city pair under all its flight numbers, including this one, and those ran 77.0% 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 1326thin sample | 339 | 68.6% | 71 min | 1.18% | C |
| All United Airlines on AUS–IAH | 2,643 | 77.0% | 58 min | 1.02% | B |
| All carriers on AUS–IAH | 2,670 | 77.2% | 58 min | 1.01% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1326 quarter by quarter
UA 1326 did not run the same all year. Its best quarter was Jan–Mar 2026 at 81.8% on time and its weakest Oct–Dec 2025 at 57.1%, a swing of 25 points on roughly 85 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 20256 flights—
- Oct–Dec 202591 flights57.1%
- Jan–Mar 202690 flights81.8%
- Apr–Jun 202691 flights65.9%
- Jul–Sep 202661 flights75.4%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1326 did best on Tuesday at 79.2% on time and worst on Thursday at 59.6%. Each day rests on about 48 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1326 runs when it is late
The 105 late arrivals split 43 under half an hour, 28 between 30 and 60 minutes, and 34 an hour or more.
- 15+ min early15 flights4.5%
- Within 15 min214 flights64.1%
- 15–29 min late43 flights12.9%
- 30–59 min late28 flights8.4%
- 1–2 hours late19 flights5.7%
- 2+ hours late15 flights4.5%
Scale runs 0% to 100%.
Share of 334 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 71 departures that left 15 minutes late or more, only 7 made it up before arrival. In the other direction, 41 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 IAH.
The worst days
Worst days for UA 1326
The latest arrival of the period was on 10 May 2026, 15 hours 8 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 May 2026 | 15 hours 8 minutes | Extreme weather |
| 15 March 2026 | 6 hours 8 minutes | Carrier |
| 7 March 2026 | 4 hours 57 minutes | National Airspace System |
| 28 October 2025 | 4 hours 42 minutes | National Airspace System |
| 1 May 2026 | 4 hours | National Airspace System |
Delay causes
Why UA 1326 runs late
National Airspace System accounts for 44% of the 7,466 delay minutes carriers reported here, and the remaining four split what is left.
- 44%National Airspace System
- 26%Late-arriving aircraft
- 15%Carrier
- 14%Extreme weather
Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 7,466 delay minutes reported on UA 1326.
Cancellations sit at 1.18% against a national 1.89%, which is ordinary. Diversions add another 0.29%.
Connections and routes
What a delay on this flight costs
10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on seven other city pairs in the data, including SFO to AUS (211), IAH to SMF (92) and IAH to MCI (32), but none flew often enough under UA 1326 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to AUS to IAH only.
One caution: this is a thin sample. 339 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 1326
For a booking, UA 1326 is one of the weaker ways to fly AUS to IAH: 9 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
- AUS to IAH, every carrier and departure
- IAH to AUS, the return direction
- United Airlines 2196 on the same route76.7%
- United Airlines 1966 on the same route95.0%
- United Airlines 1747 on the same route71.7%
- Austin-Bergstrom International (AUS) delay statistics
- 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
- How often a connection fails at the major US hubs
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.