Flight number record
UA 2425
United Airlines · Newark to Houston
- Route
- EWR → IAH
- Departs
- 20:40
- Flights
- 329
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 329 flights, with a median arrival 9 minutes early.
The national on-time rate over the same period is 77.3%, so UA 2425 runs 5 points behind the country as a whole. Across a thousand flights that is about 50 extra late arrivals.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
3.04%
National rate is 1.89%
1 hour+ late
11.9%
National rate is 8.3%
These figures cover 329 flights between September 2025 and August 2026. Beyond the headline rate, 11.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 103 of 329 flights, with 20:50 (75 flights) and 20:35 (39 flights) next.
- Departs 20:40103 flights31.3%
- Departs 20:5075 flights22.8%
- Departs 20:3539 flights11.9%
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 20:40 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and UA 2425 runs 2 points better at 72.3%. 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 2425 next to EWR to IAH
Every carrier on EWR to IAH combined arrived on time 80.2% of the time across 3,714 flights, so UA 2425 is 8 points behind it. United flew 3,510 flights on the same city pair under all its flight numbers, including this one, and those ran 80.8% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2425thin sample | 329 | 72.3% | 80 min | 3.04% | C− |
| All United Airlines on EWR–IAH | 3,510 | 80.8% | 77 min | 1.60% | B |
| All carriers on EWR–IAH | 3,714 | 80.2% | 78 min | 1.97% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 Jul–Sep 2026 at 57.1%, a swing of 23 points on roughly 82 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 202524 flights—
- Oct–Dec 202566 flights66.2%
- Jan–Mar 202689 flights75.9%
- Apr–Jun 202691 flights80.0%
- Jul–Sep 202659 flights57.1%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2425 did best on Tuesday at 76.1% on time and worst on Friday at 63.8%. Each day rests on about 47 flights, so a gap of 12 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2425 runs when it is late
UA 2425 often beats the schedule: 131 of 318 completed flights, 41%, arrived 15 minutes or more early. The 88 late arrivals split 24 under half an hour, 26 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early131 flights41.2%
- Within 15 min99 flights31.1%
- 15–29 min late24 flights7.5%
- 30–59 min late26 flights8.2%
- 1–2 hours late20 flights6.3%
- 2+ hours late18 flights5.7%
Scale runs 0% to 100%.
Share of 318 completed flights by arrival against schedule.
A late pushback is often recovered here: of 100 departures that left 15 minutes late or more, 30 still arrived on time. In the other direction, 18 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at IAH.
The worst days
Worst days for UA 2425
The latest arrival of the period was on 27 August 2026, 6 hours 19 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 August 2026 | 6 hours 19 minutes | Late-arriving aircraft |
| 18 March 2026 | 5 hours 33 minutes | Late-arriving aircraft |
| 30 October 2025 | 5 hours 10 minutes | Late-arriving aircraft |
| 14 June 2026 | 4 hours 58 minutes | Extreme weather |
| 7 March 2026 | 4 hours 29 minutes | National Airspace System |
Delay causes
Why UA 2425 runs late
Late-arriving aircraft accounts for 48% of the 7,061 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 27%Carrier
- 21%National Airspace System
- 4%Extreme weather
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,061 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 7,061 delay minutes reported on UA 2425.
Cancellations run at 3.04%, against 1.89% nationally. That is roughly 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
11.9% 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.
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.
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. 329 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: 3.04% of its 329 scheduled flights did not operate. A late arrival costs a little over an hour, 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 route91.3%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.