Leave before 9 am: 96% depart on time. After 4 pm it’s 77%.
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.
Flights, best and worst
Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
| UA 2456 | IAH 19:55 | SEA 22:42 | 73% |
All 7 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 1351 | IAH 08:00 | SEA 10:47 | 4h 47m | 35 | 86% | 0.0% | 57 min |
| UA 2654 | IAH 08:00 | SEA 10:47 | 4h 47m | 36 | 97% | 0.0% | 28 min |
| UA 2205 | IAH 10:00 | SEA 12:47 | 4h 47m | 125 | 77% | 0.0% | 69 min |
| UA 2638 | IAH 16:25 | SEA 19:12 | 4h 47m | 92 | 67% | 0.0% | 54 min |
| UA 1795 | IAH 18:05 | SEA 20:53 | 4h 48m | 29 | 76% | 0.0% | 86 min |
| UA 692 | IAH 18:30 | SEA 21:18 | 4h 48m | 32 | 72% | 0.0% | 61 min |
| UA 2456 | IAH 19:55 | SEA 22:42 | 4h 47m | 303 | 73% | 0.7% | 50 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 | IAH | SEA | 4h 48m | 79% | 0.2% | 1,238 | 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