Flight number record
UA 495
United Airlines · Washington to Denver
- Route
- IAD → DEN
- Departs
- 22:23
- Flights
- 310
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 495, check with United Airlines.
UA 495 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 310 flights, with a median arrival 8 minutes early.
Set against the rest of the country, UA 495's record is 8 points better than the US average of 77.3%. That gap is worth roughly 81 fewer late arrivals for every thousand flights.
Key figures
On time
85.4%
Arrivals under 15 minutes late, of 309 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
0.32%
National rate is 1.89%
1 hour+ late
4.2%
National rate is 8.3%
These figures cover 310 flights between September 2025 and August 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When UA 495 flies
UA 495 flies IAD to DEN without a single fixed slot. Its most common scheduled departure was 22:23, used on 81 of 310 flights, with 22:10 (67 flights) and 22:35 (43 flights) next.
- Departs 22:2381 flights26.1%
- Departs 22:1067 flights21.6%
- Departs 22:3543 flights13.9%
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 22:23 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and UA 495 runs 15 points better at 85.4%. 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 495 next to IAD to DEN
Every carrier on IAD to DEN combined arrived on time 83.1% of the time across 3,387 flights, so UA 495 is 2 points ahead of it. United flew 2,791 flights on the same city pair under all its flight numbers, including this one, and those ran 84.1% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 495thin sample | 310 | 85.4% | 56 min | 0.32% | A+ |
| All United Airlines on IAD–DEN | 2,791 | 84.1% | 68 min | 0.50% | B+ |
| All carriers on IAD–DEN | 3,387 | 83.1% | 63 min | 0.59% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 495 quarter by quarter
Quarter by quarter UA 495 held fairly steady: 87.1% in Oct–Dec 2025, 84.8% in Jan–Mar 2026, 89.0% in Apr–Jun 2026 and 80.6% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202524 flights—
- Oct–Dec 202562 flights87.1%
- Jan–Mar 202680 flights84.8%
- Apr–Jun 202682 flights89.0%
- Jul–Sep 202662 flights80.6%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 495 did best on Wednesday at 93.0% on time and worst on Thursday at 80.4%. Each day rests on about 44 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 495 runs when it is late
UA 495 often beats the schedule: 79 of 309 completed flights, 26%, arrived 15 minutes or more early. The 45 late arrivals split 17 under half an hour, 15 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early79 flights25.6%
- Within 15 min185 flights59.9%
- 15–29 min late17 flights5.5%
- 30–59 min late15 flights4.9%
- 1–2 hours late11 flights3.6%
- 2+ hours late2 flights0.6%
Scale runs 0% to 100%.
Share of 309 completed flights by arrival against schedule.
A late pushback is often recovered here: of 63 departures that left 15 minutes late or more, 25 still arrived on time. 7 flights left on time and still arrived late.
The worst days
Worst days for UA 495
The latest arrival of the period was on 23 March 2026, 4 hours 23 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across March, July and May, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 March 2026 | 4 hours 23 minutes | Late-arriving aircraft |
| 18 July 2026 | 3 hours 38 minutes | Carrier |
| 13 March 2026 | 1 hour 57 minutes | Late-arriving aircraft |
| 20 May 2026 | 1 hour 52 minutes | Extreme weather |
| 5 July 2026 | 1 hour 52 minutes | Extreme weather |
Delay causes
Why UA 495 runs late
Late-arriving aircraft accounts for 49% of the 2,509 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 28%Carrier
- 13%National Airspace System
- 11%Extreme weather
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,509 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 2,509 delay minutes reported on UA 495.
Cancellations are rare at 0.32%, 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
Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,452 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 four other city pairs in the data, including BDL to IAD (36), BNA to IAD (31) and SFO to TPA (6), but none flew often enough under UA 495 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAD to DEN only.
One caution: this is a thin sample. 310 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 495
For a booking, UA 495 has one of the better records a US domestic flight can show: 85.4% on time and 0.32% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IAD to DEN, every carrier and departure
- DEN to IAD, the return direction
- United Airlines 1587 on the same route91.7%
- United Airlines 599 on the same route69.4%
- Washington Dulles International (IAD) delay statistics
- Denver International (DEN) 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.