Flight number record

UA 1949

United Airlines · Houston to Dallas-Fort Worth

Route: IAH → DFW
Departs: 20:05
Flights: 348
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1949, check with United Airlines.

UA 1949 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 348 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so UA 1949 runs 8 points behind the country as a whole. Across a thousand flights that is about 76 extra late arrivals.

On time

70.0%

Arrivals under 15 minutes late, of 343 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

1.15%

National rate is 1.81%

1 hour+ late

10.8%

National rate is 8.1%

These figures cover 348 flights between July 2025 and June 2026. Beyond the headline rate, 10.8% 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 1949 flies

UA 1949 flies IAH to DFW without a single fixed slot. Its most common scheduled departure was 20:05, used on 44 of 348 flights, with 20:15 (41 flights) and 20:20 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:0544 flights12.6%
Departs 20:1541 flights11.8%
Departs 20:2037 flights10.6%

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 20:05 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and UA 1949 runs level with that at 70.0%. 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 1949 next to IAH to DFW

Every carrier on IAH to DFW combined arrived on time 75.0% of the time across 5,779 flights, so UA 1949 is 5 points behind it. United flew 2,415 flights on the same city pair under all its flight numbers, including this one, and those ran 75.7% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 9 points.

UA 1949 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1949thin sample	348	70.0%	59 min	1.15%	C
All United Airlines on IAH–DFW	2,415	75.7%	74 min	1.70%	B
All carriers on IAH–DFW	5,779	75.0%	99 min	2.80%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1949 quarter by quarter

UA 1949 did not run the same all year. Its best quarter was Oct–Dec 2025 at 76.7% on time and its weakest Apr–Jun 2026 at 56.6%, a swing of 20 points on roughly 87 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 202591 flights72.2%
Oct–Dec 202591 flights76.7%
Jan–Mar 202683 flights73.8%
Apr–Jun 202683 flights56.6%

Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1949 did best on Wednesday at 76.5% on time and worst on Sunday at 60.8%. Each day rests on about 50 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1949 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 6,067 reported delay minutes.

Late-arriving aircraft
39%
Carrier
31%
National Airspace System
25%
Extreme weather
5%

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 6,067 reported delay minutes here, that single category outweighs weather by 7 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 6,067 delay minutes reported on UA 1949.

Cancellations sit at 1.15% against a national 1.81%, which is ordinary. Diversions add another 0.29%.

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. 10.8% 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 five other city pairs in the data, including SMF to IAH (210), LAX to SMF (46) and PIT to IAH (34), but none flew often enough under UA 1949 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to DFW only.

One caution: this is a thin sample. 348 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 1949

For a booking, UA 1949 is one of the weaker ways to fly IAH to DFW: 5 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