Flight number record
UA 2498
United Airlines · Houston to Raleigh
- Route
- IAH → RDU
- Departs
- 18:08
- Flights
- 331
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2498, check with United Airlines.
UA 2498 lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 331 flights, with a median arrival 1 minute early.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 329 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
0.60%
National rate is 1.89%
1 hour+ late
8.2%
National rate is 8.3%
These figures cover 331 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 2498 flies
UA 2498 flies IAH to RDU without a single fixed slot. Its most common scheduled departure was 18:08, used on 70 of 331 flights, with 18:15 (55 flights) and 18:50 (43 flights) next.
- Departs 18:0870 flights21.1%
- Departs 18:1555 flights16.6%
- Departs 18:5043 flights13.0%
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 18:08 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 2498 runs 9 points better at 76.9%. 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 2498 next to IAH to RDU
Every carrier on IAH to RDU combined arrived on time 83.2% of the time across 943 flights, so UA 2498 is 6 points behind it. United flew 696 flights on the same city pair under all its flight numbers, including this one, and those ran 84.6% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2498thin sample | 331 | 76.9% | 64 min | 0.60% | B+ |
| All United Airlines on IAH–RDU | 696 | 84.6% | 61 min | 0.86% | B+ |
| All carriers on IAH–RDU | 943 | 83.2% | 67 min | 1.27% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2498 quarter by quarter
UA 2498 did not run the same all year. Its best quarter was Oct–Dec 2025 at 87.0% on time and its weakest Apr–Jun 2026 at 69.2%, a swing of 18 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 20256 flights—
- Oct–Dec 202592 flights87.0%
- Jan–Mar 202684 flights76.8%
- Apr–Jun 202691 flights69.2%
- Jul–Sep 202658 flights72.4%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2498 did best on Tuesday at 85.4% on time and worst on Saturday at 65.0%. Each day rests on about 47 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2498 runs when it is late
The 76 late arrivals split 25 under half an hour, 24 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early49 flights14.9%
- Within 15 min204 flights62.0%
- 15–29 min late25 flights7.6%
- 30–59 min late24 flights7.3%
- 1–2 hours late18 flights5.5%
- 2+ hours late9 flights2.7%
Scale runs 0% to 100%.
Share of 329 completed flights by arrival against schedule.
21 of 89 late departures made up the time and arrived on time, 24% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for UA 2498
The latest arrival of the period was on 16 March 2026, 4 hours 31 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 |
|---|---|---|
| 16 March 2026 | 4 hours 31 minutes | Late-arriving aircraft |
| 22 June 2026 | 4 hours 14 minutes | Late-arriving aircraft |
| 12 April 2026 | 3 hours 24 minutes | Late-arriving aircraft |
| 15 June 2026 | 3 hours 7 minutes | Late-arriving aircraft |
| 28 August 2026 | 3 hours | Late-arriving aircraft |
Delay causes
Why UA 2498 runs late
Late-arriving aircraft accounts for 56% of the 4,880 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Late-arriving aircraft
- 34%Carrier
- 7%National Airspace System
- 3%Extreme weather
56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,880 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 4,880 delay minutes reported on UA 2498.
Cancellations are rare at 0.60%, 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
8.2% 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 1,042 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 five other city pairs in the data, including SFO to IAH (121), SAT to IAH (107) and RNO to SFO (49), but none flew often enough under UA 2498 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to RDU only.
One caution: this is a thin sample. 331 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 2498
For a booking, UA 2498 is one of the weaker ways to fly IAH to RDU: 6 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 RDU, every carrier and departure
- RDU to IAH, the return direction
- George Bush Intercontinental (IAH) delay statistics
- Raleigh-Durham International (RDU) 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.