Flight number record
UA 1949
United Airlines · Houston to Dallas-Fort Worth
- Route
- IAH → DFW
- Departs
- 19:59
- Flights
- 339
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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, 7 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 339 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so UA 1949 runs 7 points behind the country as a whole. Across a thousand flights that is about 74 extra late arrivals.
Key figures
On time
69.9%
Arrivals under 15 minutes late, of 335 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
0.88%
National rate is 1.89%
1 hour+ late
11.0%
National rate is 8.3%
These figures cover 339 flights between September 2025 and August 2026. Beyond the headline rate, 11.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 1949 flies
UA 1949 flies IAH to DFW without a single fixed slot. Its most common scheduled departure was 19:59, used on 59 of 339 flights, with 20:15 (41 flights) and 20:25 (37 flights) next.
- Departs 19:5959 flights17.4%
- Departs 20:1541 flights12.1%
- Departs 20:2537 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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 1949 runs level with that at 69.9%. 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 1949 next to IAH to DFW
Every carrier on IAH to DFW combined arrived on time 76.4% of the time across 5,800 flights, so UA 1949 is 7 points behind it. United flew 2,459 flights on the same city pair under all its flight numbers, including this one, and those ran 76.8% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1949thin sample | 339 | 69.9% | 56 min | 0.88% | C+ |
| All United Airlines on IAH–DFW | 2,459 | 76.8% | 72 min | 1.42% | B |
| All carriers on IAH–DFW | 5,800 | 76.4% | 98 min | 2.34% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1949 quarter by quarter
UA 1949 did not run the same all year. Its best quarter was Jul–Sep 2025 at 80.0% on time and its weakest Apr–Jun 2026 at 56.6%, a swing of 23 points on roughly 68 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 flights80.0%
- Oct–Dec 202591 flights76.7%
- Jan–Mar 202683 flights73.8%
- Apr–Jun 202683 flights56.6%
- Jul–Sep 202652 flights67.3%
Scale runs 50% to 85%.
By weekday, UA 1949 did best on Wednesday at 80.8% on time and worst on Sunday at 62.7%. Each day rests on about 48 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1949 runs when it is late
The 101 late arrivals split 38 under half an hour, 26 between 30 and 60 minutes, and 37 an hour or more.
- 15+ min early39 flights11.6%
- Within 15 min195 flights58.2%
- 15–29 min late38 flights11.3%
- 30–59 min late26 flights7.8%
- 1–2 hours late25 flights7.5%
- 2+ hours late12 flights3.6%
Scale runs 0% to 100%.
Share of 335 completed flights by arrival against schedule.
12 of 100 late departures made up the time and arrived on time, 12% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for UA 1949
The latest arrival of the period was on 2 June 2026, 3 hours 31 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across June, April, May and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 June 2026 | 3 hours 31 minutes | Late-arriving aircraft |
| 25 April 2026 | 3 hours 12 minutes | Extreme weather |
| 10 May 2026 | 2 hours 40 minutes | National Airspace System |
| 4 March 2026 | 2 hours 33 minutes | National Airspace System |
| 15 June 2026 | 2 hours 24 minutes | Carrier |
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 5,637 reported delay minutes.
- 40%Late-arriving aircraft
- 30%National Airspace System
- 24%Carrier
- 5%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,637 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 5,637 delay minutes reported on UA 1949.
Cancellations are rare at 0.88%, 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
11.0% 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.
UA 1949 is not only a IAH to DFW flight. It also flew SMF to IAH (262 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. 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SMF to IAHthin sample | 262 | 88.1% | 64 min | 0.00% | A+ |
What to do with this
Booking UA 1949
For a booking, UA 1949 is one of the weaker ways to fly IAH to DFW: 7 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 DFW, every carrier and departure
- DFW to IAH, the return direction
- American Airlines 2551 on the same route90.0%
- United Airlines 1388 on the same route76.1%
- George Bush Intercontinental (IAH) delay statistics
- Dallas/Fort Worth International (DFW) 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.