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1,824 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 3 in 4.

Best time to leave 8–9 am 93% arrive on time from SFO
Best single flight UA 5644 SFO 18:45 → BOI 21:40 · 79% on time Avoid AS 3375 SFO 19:25 → BOI 22:07 · 77% 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).

8
9
10
11
12
13
14
15
16
17
18
19
20
21
SFO
93
69
87
59
71
87
80
70
73
76
62
90
% 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) 1,465 77% 0.3% 72 min
Alaska (incl. SkyWest, Horizon) 359 75% 0.3% 73 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 5644flown by SkyWest SFO 18:45 BOI 21:40 79%
AS 3375flown by SkyWest SFO 19:25 BOI 22:07 77%

All 8 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 4697flown by SkyWest SFO 10:15 BOI 13:08 1h 53m 26 58% 0.0% 45 min
UA 6035flown by SkyWest SFO 10:15 BOI 13:08 1h 53m 82 56% 1.2% 58 min
UA 267 SFO 13:54 BOI 16:44 1h 50m 72 62% 0.0% 66 min
AS 2238flown by Horizon SFO 15:05 BOI 17:43 1h 38m 28 50% 0.0% 59 min
UA 5387flown by SkyWest SFO 16:30 BOI 19:25 1h 55m 15 80% 0.0% 35 min
UA 5644flown by SkyWest SFO 18:45 BOI 21:40 1h 55m 222 79% 0.5% 99 min
AS 3375flown by SkyWest SFO 19:25 BOI 22:07 1h 42m 247 77% 0.0% 78 min
UA 6027flown by SkyWest SFO 20:59 BOI 23:55 1h 56m 108 63% 0.0% 101 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 SFO BOI 1h 50m 77% 0.3% 1,465 Flying now
Alaska SFO BOI 1h 38m 75% 0.3% 359 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