Flight number record

UA 1711

United Airlines · Houston to Austin

Route: IAH → AUS
Departs: 16:20
Flights: 331
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 77.6%. The late ones land about an hour behind schedule. That rests on 331 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.6%, so UA 1711 runs 9 points behind the country as a whole. Across a thousand flights that is about 90 extra late arrivals.

On time

68.6%

Arrivals under 15 minutes late, of 328 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

0.60%

National rate is 1.81%

1 hour+ late

8.5%

National rate is 8.1%

These figures cover 331 flights between July 2025 and June 2026. Beyond the headline rate, 8.5% 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 1711 flies

UA 1711 flies IAH to AUS without a single fixed slot. Its most common scheduled departure was 16:20, used on 223 of 331 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:20223 flights67.4%

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 16:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and UA 1711 runs 4 points worse at 68.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 1711 next to IAH to AUS

Every carrier on IAH to AUS combined arrived on time 79.4% of the time across 2,675 flights, so UA 1711 is 11 points behind it. United flew 2,609 flights on the same city pair under all its flight numbers, including this one, and those ran 79.4% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 10 points.

UA 1711 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1711thin sample	331	68.6%	58 min	0.60%	C+
All United Airlines on IAH–AUS	2,609	79.4%	65 min	0.80%	B+
All carriers on IAH–AUS	2,675	79.4%	66 min	0.79%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1711 quarter by quarter

UA 1711 did not run the same all year. Its best quarter was Jan–Mar 2026 at 72.7% on time and its weakest Oct–Dec 2025 at 62.5%, a swing of 10 points on roughly 83 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 202564 flights70.3%
Oct–Dec 202589 flights62.5%
Jan–Mar 202689 flights72.7%
Apr–Jun 202689 flights69.3%

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1711 did best on Tuesday at 80.4% on time and worst on Monday at 59.2%. Each day rests on about 47 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

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 5,947 reported delay minutes.

National Airspace System
38%
Late-arriving aircraft
30%
Carrier
27%
Extreme weather
5%

38% 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 2,283 minutes out of 5,947, against a national NAS share of 21%. The split is drawn from 5,947 delay minutes reported on UA 1711.

Cancellations are rare at 0.60%, below the national 1.81% 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

8.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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 (289 flights, 88.1% 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. 331 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.

Other routes flown as UA 1711
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
LAS to IAHthin sample	289	88.1%	107 min	0.35%	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: 11 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.

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