Flight number record
UA 2419
United Airlines · Denver to Houston
- Route
- DEN → IAH
- Departs
- 20:28
- Flights
- 338
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2419, check with United Airlines.
UA 2419 lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 338 flights, with a median arrival 8 minutes early.
Key figures
On time
78.9%
Arrivals under 15 minutes late, of 337 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
0.30%
National rate is 1.89%
1 hour+ late
8.9%
National rate is 8.3%
These figures cover 338 flights between September 2025 and August 2026. Beyond the headline rate, 8.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When UA 2419 flies
UA 2419 flies DEN to IAH without a single fixed slot. Its most common scheduled departure was 20:28, used on 81 of 338 flights, with 20:23 (53 flights) and 20:31 (45 flights) next.
- Departs 20:2881 flights24.0%
- Departs 20:2353 flights15.7%
- Departs 20:3145 flights13.3%
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 20:28 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and UA 2419 runs 9 points better at 78.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
UA 2419 next to DEN to IAH
Every carrier on DEN to IAH combined arrived on time 79.6% of the time across 4,728 flights, so UA 2419 is about level with it. United flew 3,894 flights on the same city pair under all its flight numbers, including this one, and those ran 79.7% on time. Across its whole network United Airlines managed 78.8%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2419thin sample | 338 | 78.9% | 67 min | 0.30% | B+ |
| All United Airlines on DEN–IAH | 3,894 | 79.7% | 63 min | 0.26% | B+ |
| All carriers on DEN–IAH | 4,728 | 79.6% | 62 min | 0.30% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2419 quarter by quarter
UA 2419 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.8% on time and its weakest Jul–Sep 2026 at 50.8%, a swing of 40 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 flights76.7%
- Oct–Dec 202591 flights87.9%
- Jan–Mar 202665 flights90.8%
- Apr–Jun 202690 flights81.1%
- Jul–Sep 202662 flights50.8%
Scale runs 40% to 95%.
By weekday, UA 2419 ranged from 72.3% on Friday to 83.3% on Tuesday. With about 48 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 2419 runs when it is late
UA 2419 often beats the schedule: 109 of 337 completed flights, 32%, arrived 15 minutes or more early. The 71 late arrivals split 23 under half an hour, 18 between 30 and 60 minutes, and 30 an hour or more.
- 15+ min early109 flights32.3%
- Within 15 min157 flights46.6%
- 15–29 min late23 flights6.8%
- 30–59 min late18 flights5.3%
- 1–2 hours late20 flights5.9%
- 2+ hours late10 flights3.0%
Scale runs 0% to 100%.
Share of 337 completed flights by arrival against schedule.
26 of 89 late departures made up the time and arrived on time, 29% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for UA 2419
The latest arrival of the period was on 22 September 2025, 4 hours 26 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 September 2025 | 4 hours 26 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 59 minutes | Late-arriving aircraft |
| 30 July 2026 | 3 hours 26 minutes | Late-arriving aircraft |
| 14 August 2026 | 3 hours 13 minutes | Late-arriving aircraft |
| 22 July 2026 | 2 hours 48 minutes | Late-arriving aircraft |
Delay causes
Why UA 2419 runs late
Late-arriving aircraft accounts for 53% of the 4,739 delay minutes carriers reported here, and the remaining four split what is left.
- 53%Late-arriving aircraft
- 39%Carrier
- 8%National Airspace System
- 1%Extreme weather
53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,739 reported delay minutes here, that single category outweighs weather by 53 to one. The split is drawn from 4,739 delay minutes reported on UA 2419.
Cancellations are rare at 0.30%, 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
8.9% of arrivals land an hour or more late, close to the national 8.3%, so 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.
The 861 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on three other city pairs in the data, including ORD to EWR (24), LGA to DEN (21) and IAH to CMH (1), but none flew often enough under UA 2419 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to IAH only.
One caution: this is a thin sample. 338 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 2419
For a booking, read UA 2419 as 78.9% on time with 0.30% cancelled over 338 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to IAH, every carrier and departure
- IAH to DEN, the return direction
- United Airlines 1720 on the same route90.1%
- United Airlines 475 on the same route74.1%
- United Airlines 320 on the same route96.7%
- United Airlines 1829 on the same route71.2%
- United Airlines 489 on the same route77.9%
- Frontier Airlines 2996 on the same route73.9%
- Denver International (DEN) 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
- 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.