The best bet has a stop: Delta via Detroit (6h 08m) reaches Boston on time 84% of the time, against 74% 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.
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.
| DL 499 | DEN 11:30 | BOS 17:36 | 75% |
All 1 Delta 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.
| DL 499 | DEN 11:30 | BOS 17:36 | 4h 06m | 349 | 75% | 1.4% | 59 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.
| Delta | DEN | BOS | 4h 06m | 75% | 1.3% | 372 | Flying now |
Alternatives with one stop
All connections →| DeltaDetails → | DEN 00:59 → DTW 05:48DL 1096 | 1h 17m Detroit | DTW 07:05 → BOS 09:07DL 1163 | 6h 08m | 94% | 84% |
| DeltaDetails → | DEN 06:00 → MSP 08:59DL 1129 | 1h 06m Minneapolis | MSP 10:05 → BOS 13:51DL 2655 | 5h 55m | 92% | 74% |
| DeltaDetails → | DEN 11:10 → MSP 14:10DL 2849 | 1h 05m Minneapolis | MSP 15:15 → BOS 19:11DL 2591 | 6h 01m | 80% | 53% |
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