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3,037 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 7–8 am 93% arrive on time from DEN
Best single flight UA 2014 DEN 19:28 → BOI 21:29 · 73% on time Avoid UA 5923 DEN 20:25 → BOI 22:37 · 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
DEN
93
90
89
86
59
63
73
74
80
77
73
60
65
48
% 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.

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 (incl. SkyWest) 1,818 80% 0.1% 64 min
Southwest 1,089 73% 0.1% 45 min
Frontier 130 – 0.0% 49 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 2014 DEN 19:28 BOI 21:29 73%
UA 5923flown by SkyWest DEN 20:25 BOI 22:37 71%

All 12 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 4718flown by SkyWest DEN 07:45 BOI 09:53 2h 08m 71 83% 0.0% 29 min
WN 818 DEN 07:45 BOI 09:45 2h 00m 49 90% 0.0% 28 min
UA 1464 DEN 07:45 BOI 09:45 2h 00m 30 97% 0.0% 18 min
UA 4765flown by SkyWest DEN 07:45 BOI 09:53 2h 08m 37 97% 0.0% 51 min
F9 3933 DEN 10:29 BOI 12:30 2h 00m 129 83% 0.0% 49 min
UA 2255 DEN 11:35 BOI 13:34 1h 59m 125 82% 0.0% 68 min
WN 1491 DEN 12:50 BOI 14:45 1h 55m 33 62% 0.0% 29 min
WN 4669 DEN 13:30 BOI 15:25 1h 55m 16 31% 0.0% 29 min
UA 2602 DEN 15:55 BOI 17:56 2h 01m 89 67% 0.0% 62 min
UA 2014 DEN 19:28 BOI 21:29 2h 01m 326 73% 0.3% 54 min
UA 5923flown by SkyWest DEN 20:25 BOI 22:37 2h 12m 298 71% 0.3% 63 min
WN 3806 DEN 20:55 BOI 22:55 2h 00m 58 40% 0.0% 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.
Frontier DEN BOI 2h 00m 83% 0.0% 130 Flying now
United DEN BOI 2h 09m 80% 0.1% 1,818 Flying now
Southwest DEN BOI 2h 00m 73% 0.1% 1,089 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