Leave before 9 am: 94% depart on time. After 4 pm it’s 2 in 3.
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.
All 6 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 647 | BOS 07:45 | DEN 10:19 | 4h 34m | 364 | 91% | 1.6% | 45 min |
| UA 662 | BOS 09:40 | DEN 12:12 | 4h 32m | 278 | 91% | 0.7% | 70 min |
| UA 414 | BOS 12:22 | DEN 14:53 | 4h 31m | 364 | 90% | 1.1% | 55 min |
| UA 2297 | BOS 15:10 | DEN 17:55 | 4h 45m | 363 | 86% | 0.8% | 67 min |
| UA 800 | BOS 16:57 | DEN 19:45 | 4h 48m | 274 | 75% | 1.1% | 63 min |
| UA 2433 | BOS 20:39 | DEN 23:26 | 4h 47m | 69 | 56% | 1.4% | 104 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 | BOS | DEN | 4h 35m | 83% | 1.1% | 1,897 | 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