Leave before 9 am: 93% depart on time. After 4 pm it’s 78%.
Time of day × airport
Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).
Pick an hour to see this route’s flights leaving then.
All 8 United flights in the current schedule
Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
| UA 1935 | IAD 06:30 | IAH 08:39 | 3h 09m | 37 | 100% | 0.0% | – |
| UA 1907 | IAD 06:30 | IAH 08:39 | 3h 09m | 35 | 83% | 0.0% | 53 min |
| UA 1524 | IAD 08:40 | IAH 10:59 | 3h 19m | 334 | 89% | 0.6% | 74 min |
| UA 1535 | IAD 12:50 | IAH 15:11 | 3h 21m | 307 | 84% | 0.7% | 84 min |
| UA 2857 | IAD 14:53 | IAH 17:11 | 3h 18m | 45 | 70% | 0.0% | 72 min |
| UA 2217 | IAD 17:59 | IAH 20:25 | 3h 26m | 341 | 72% | 0.3% | 62 min |
| UA 1986 | IAD 22:20 | IAH 00:45 | 3h 25m | 37 | 81% | 0.0% | 115 min |
| UA 2050 | IAD 22:20 | IAH 00:45 | 3h 25m | 35 | 91% | 0.0% | 100 min |
Nonstops by airline and airport
Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
| United | IAD | IAH | 3h 25m | 85% | 0.4% | 1,873 | Flying now |
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON