Flight number record
UA 2425
United Airlines · Newark to Houston
- Route
- EWR → IAH
- Departs
- 20:40
- Flights
- 332
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2425, check with United Airlines.
UA 2425 sits in the middle of the pack with a C−. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 332 flights, with a median arrival 11 minutes early.
Key figures
On time
74.1%
Arrivals under 15 minutes late, of 320 completed flights
Avg delay
92 min
Across delayed arrivals only, not all flights
Cancelled
3.31%
National rate is 1.81%
1 hour+ late
12.8%
National rate is 8.1%
These figures cover 332 flights between July 2025 and June 2026. Beyond the headline rate, 12.8% 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 2425 flies
UA 2425 flies EWR to IAH without a single fixed slot. Its most common scheduled departure was 20:40, used on 105 of 332 flights, with 20:35 (48 flights) and 20:38 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 20:40105 flights31.6%
- Departs 20:3548 flights14.5%
- Departs 20:3842 flights12.7%
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 20:40 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and UA 2425 runs 4 points better at 74.1%. 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 2425 next to EWR to IAH
Every carrier on EWR to IAH combined arrived on time 79.6% of the time across 3,798 flights, so UA 2425 is 6 points behind it. United flew 3,534 flights on the same city pair under all its flight numbers, including this one, and those ran 80.4% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2425thin sample | 332 | 74.1% | 92 min | 3.31% | C− |
| All United Airlines on EWR–IAH | 3,534 | 80.4% | 74 min | 1.64% | B |
| All carriers on EWR–IAH | 3,798 | 79.6% | 75 min | 2.08% | B |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 2425 quarter by quarter
UA 2425 did not run the same all year. Its best quarter was Apr–Jun 2026 at 80.0% on time and its weakest Oct–Dec 2025 at 66.2%, a swing of 14 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 202586 flights72.0%
- Oct–Dec 202566 flights66.2%
- Jan–Mar 202689 flights75.9%
- Apr–Jun 202691 flights80.0%
Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2425 ranged from 68.1% on Friday to 79.5% on Monday. With about 47 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.
Delay causes
Why UA 2425 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 53% of the 7,598 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.
- 53%Late-arriving aircraft
- 27%Carrier
- 16%National Airspace System
- 3%Extreme weather
53% 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 7,598 reported delay minutes here, that single category outweighs weather by 16 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 7,598 delay minutes reported on UA 2425.
Cancellations run at 3.31%, against 1.81% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
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. 12.8% 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 1,400 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on one other city pair in the data, including BZN to EWR (31), but none flew often enough under UA 2425 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to IAH only.
One caution: this is a thin sample. 332 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 2425
For a booking, the cancellation rate is the figure to plan around on UA 2425: 3.31% of its 332 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- EWR to IAH, every carrier and departure
- IAH to EWR, the return direction
- United Airlines 492 on the same route92.0%
- United Airlines 2674 on the same route69.5%
- United Airlines 571 on the same route80.8%
- United Airlines 2438 on the same route93.5%
- Newark Liberty International (EWR) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.