Flight number record
UA 475
United Airlines · Denver to Houston
- Route
- DEN → IAH
- Departs
- 19:35
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 475, check with United Airlines.
UA 475 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 364 flights, with a median arrival 6 minutes early.
Key figures
On time
74.1%
Arrivals under 15 minutes late, of 363 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
9.1%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. Beyond the headline rate, 9.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 475 flies
UA 475 flies DEN to IAH without a single fixed slot. Its most common scheduled departure was 19:35, used on 113 of 364 flights, with 19:20 (98 flights) and 19:38 (53 flights) next.
- Departs 19:35113 flights31.0%
- Departs 19:2098 flights26.9%
- Departs 19:3853 flights14.6%
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 19:35 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 475 runs 6 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.
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Against the route
UA 475 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 475 is 6 points behind 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%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 475thin sample | 364 | 74.1% | 65 min | 0.00% | C+ |
| 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 475 quarter by quarter
UA 475 did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.9% on time and its weakest Jul–Sep 2026 at 58.1%, a swing of 23 points on roughly 73 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 flights66.7%
- Oct–Dec 202591 flights80.2%
- Jan–Mar 202690 flights80.9%
- Apr–Jun 202691 flights74.7%
- Jul–Sep 202662 flights58.1%
Scale runs 50% to 85%.
By weekday, UA 475 did best on Tuesday at 78.8% on time and worst on Sunday at 65.4%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 475 runs when it is late
UA 475 often beats the schedule: 95 of 363 completed flights, 26%, arrived 15 minutes or more early. The 94 late arrivals split 22 under half an hour, 39 between 30 and 60 minutes, and 33 an hour or more.
- 15+ min early95 flights26.2%
- Within 15 min174 flights47.9%
- 15–29 min late22 flights6.1%
- 30–59 min late39 flights10.7%
- 1–2 hours late19 flights5.2%
- 2+ hours late14 flights3.9%
Scale runs 0% to 100%.
Share of 363 completed flights by arrival against schedule.
22 of 101 late departures made up the time and arrived on time, 22% of them. 15 flights left on time and still arrived late.
The worst days
Worst days for UA 475
The latest arrival of the period was on 27 July 2026, 4 hours 26 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 July 2026 | 4 hours 26 minutes | Late-arriving aircraft |
| 6 July 2026 | 4 hours 8 minutes | Carrier |
| 6 March 2026 | 3 hours 35 minutes | Carrier |
| 17 February 2026 | 3 hours 8 minutes | Late-arriving aircraft |
| 28 July 2026 | 3 hours 8 minutes | Late-arriving aircraft |
Delay causes
Why UA 475 runs late
Late-arriving aircraft accounts for 54% of the 6,113 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Late-arriving aircraft
- 29%Carrier
- 16%National Airspace System
54% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,113 reported delay minutes here, that single category outweighs weather by 54 to one. The split is drawn from 6,113 delay minutes reported on UA 475.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
9.1% 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 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 two other city pairs in the data, including IAH to ATL (2) and ORD to PVD (1), but none flew often enough under UA 475 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. 364 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 475
For a booking, UA 475 is one of the weaker ways to fly DEN to IAH: 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
- DEN to IAH, every carrier and departure
- IAH to DEN, the return direction
- United Airlines 1720 on the same route90.1%
- United Airlines 320 on the same route96.7%
- United Airlines 1829 on the same route71.2%
- United Airlines 489 on the same route77.9%
- United Airlines 2419 on the same route78.9%
- 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.