The best bet has a stop: United via Dulles (6h 55m) reaches Denver on time 92% of the time, against 73% on the nonstop.
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.
Airlines on this route
Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
| United | 214 | 73% | 0.0% | 79 min |
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.
No flight on this route ran 150+ times in the year.
All 1 flights on this route →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 | PWM | DEN | 4h 38m | 73% | 0.0% | 214 | Flying now |
Alternatives with one stop
All connections →| UnitedDetails → | PWM 05:15 → IAD 07:00UA 1926 | 1h 15m Dulles | IAD 08:15 → DEN 10:10UA 792 | 6h 55m | 97% | 92% |
| UnitedDetails → | PWM 09:55 → IAD 11:46UA 3465 · flown by Republic | 1h 02m Dulles | IAD 12:48 → DEN 14:42UA 1587 | 6h 47m | 87% | 76% |
| DeltaDetails → | PWM 12:40 → DTW 14:49DL 426 | 1h 32m Detroit | DTW 16:21 → DEN 17:27DL 2431 | 6h 55m | 93% | 67% |
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