Flight number record

UA 1326

United Airlines · Austin to Houston

Route: AUS → IAH
Departs: 17:59
Flights: 313
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1326, check with United Airlines.

UA 1326 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 313 flights, with a median arrival 5 minutes late.

The national on-time rate over the same period is 77.6%, so UA 1326 runs 13 points behind the country as a whole. Across a thousand flights that is about 130 extra late arrivals.

On time

64.6%

Arrivals under 15 minutes late, of 308 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

1.28%

National rate is 1.81%

1 hour+ late

12.0%

National rate is 8.1%

These figures cover 313 flights between July 2025 and June 2026. Beyond the headline rate, 12.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

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 313 flights, with 17:55 (37 flights) and 18:04 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:5988 flights28.1%
Departs 17:5537 flights11.8%
Departs 18:0437 flights11.8%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

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 68.2%, and UA 1326 runs 4 points worse at 64.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

UA 1326 next to AUS to IAH

Every carrier on AUS to IAH combined arrived on time 75.6% of the time across 2,674 flights, so UA 1326 is 11 points behind it. United flew 2,608 flights on the same city pair under all its flight numbers, including this one, and those ran 75.5% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 14 points.

UA 1326 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1326thin sample	313	64.6%	75 min	1.28%	D
All United Airlines on AUS–IAH	2,608	75.5%	61 min	1.27%	B
All carriers on AUS–IAH	2,674	75.6%	62 min	1.23%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	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 Jul–Sep 2025 at 41.5%, a swing of 40 points on roughly 78 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 202541 flights41.5%
Oct–Dec 202591 flights57.1%
Jan–Mar 202690 flights81.8%
Apr–Jun 202691 flights65.9%

Scale runs 35% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1326 did best on Tuesday at 80.0% on time and worst on Sunday at 55.3%. Each day rests on about 45 flights, so a gap of 25 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1326 runs late

One category carries most of the weight here. National Airspace System accounts for 43% of the 8,121 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

National Airspace System
43%
Late-arriving aircraft
28%
Carrier
15%
Extreme weather
14%

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 2.2 times the usual weather exposure. The split is drawn from 8,121 delay minutes reported on UA 1326.

Cancellations sit at 1.28% against a national 1.81%, which is ordinary. Diversions add another 0.32%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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 (170), IAH to SMF (105) 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. 313 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 a flight to put a long connection behind. 12.0% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures