tailodds FORECAST
Tickets
Any day
Showing United only (incl. its regional partners)All airlines ×
1,900 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 4 in 5.

Best time to leave 7–8 am 95% arrive on time from DEN
Best single flight UA 2656 DEN 23:59 → BOS 05:58 · 92% on time Avoid UA 597 DEN 14:06 → BOS 20:10 · 71% on time

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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DEN
97
90
82
76
66
61
71
75
96
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

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 2656 DEN 23:59 BOS 05:58 92%
UA 558 DEN 07:45 BOS 13:49 91%
UA 1232 DEN 09:40 BOS 15:44 86%
UA 1356 DEN 17:40 BOS 23:44 73%
UA 597 DEN 14:06 BOS 20:10 71%

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 558 DEN 07:45 BOS 13:49 4h 04m 340 91% 0.6% 51 min
UA 1232 DEN 09:40 BOS 15:44 4h 04m 205 86% 1.0% 68 min
UA 597 DEN 14:06 BOS 20:10 4h 04m 308 71% 1.3% 84 min
UA 779 DEN 15:56 BOS 21:59 4h 03m 82 71% 0.0% 53 min
UA 2798 DEN 16:03 BOS 22:06 4h 03m 34 52% 2.9% 58 min
UA 1356 DEN 17:40 BOS 23:44 4h 04m 185 73% 2.2% 76 min
UA 2656 DEN 23:59 BOS 05:58 3h 59m 159 92% 1.3% 34 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 DEN BOS 4h 02m 78% 0.9% 1,900 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

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