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1,827 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 86% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 6–7 am 95% arrive on time from BOI
Best single flight UA 4678 BOI 06:30 → SFO 07:30 · 90% on time Avoid AS 3025 BOI 10:52 → SFO 11:49 · 60% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
BOI
94
91
72
76
60
73
82
77
51
63
% 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
San Francisco flights leaving BOI 10–11 am: 2Close ×
UA 4733flown by SkyWest BOI 10:35 SFO 11:35 2h 00m 346 66% 0.0% 59 min
AS 3025flown by SkyWest BOI 10:52 SFO 11:49 1h 57m 247 60% 0.8% 62 min

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) 1,466 71% 0.4% 85 min
Alaska (incl. SkyWest, Horizon) 361 64% 1.1% 63 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.
UA 4678flown by SkyWest BOI 06:30 SFO 07:30 90%
UA 4733flown by SkyWest BOI 10:35 SFO 11:35 66%
AS 3025flown by SkyWest BOI 10:52 SFO 11:49 60%
All 6 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 BOI SFO 2h 00m 71% 0.4% 1,466 Flying now
Alaska BOI SFO 1h 57m 64% 1.1% 361 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