Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · connections flying that day

Sat, Oct 10 looks like a normal day here: all 2 nonstops are 4–5% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →


AS 3418 Alaska flown by SkyWest Flight history →	BOI 07:34	SJC 08:25	4%	2%	0.6%	92%
WN 770 Southwest	BOI 11:06	SJC 12:06	5%	1%	0.6%	no record

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Jose on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (San Jose is 1 h behind Boise). Layovers up to 4 hours. Pick a connection for its 12-month details.


American Details →	BOI 08:11 → PHX 09:46AA 6439 · flown by SkyWest	1h 23m Phoenix	PHX 11:09 → SJC 13:15AA 3940 · flown by Envoy	6h 04m	100%	89%
Delta Details →	BOI 08:25 → SLC 09:44DL 3607 · flown by SkyWest	1h 56m Salt Lake City	SLC 11:40 → SJC 12:35DL 1254	5h 10m	97%	84%
Delta Details →	BOI 10:35 → SEA 11:26DL 3750 · flown by SkyWest	3h 19m Seattle	SEA 14:45 → SJC 17:05DL 3897 · flown by SkyWest	7h 30m	98%	84%
United Details →	BOI 06:30 → DEN 08:29UA 1782	3h 04m Denver	DEN 11:33 → SJC 13:17UA 1256	7h 47m	99%	83%
Delta Details →	BOI 16:00 → LAX 17:23DL 3701 · flown by SkyWest	3h 21m Los Angeles	LAX 20:44 → SJC 22:05DL 1420	7h 05m	97%	81%
Alaska Details →	BOI 13:29 → PDX 13:47AS 2209 · flown by Horizon	3h 53m Portland	PDX 17:40 → SJC 19:32AS 2113 · flown by Horizon	7h 03m	99%	81%
Delta Details →	BOI 11:02 → SLC 12:23DL 1744	2h 47m Salt Lake City	SLC 15:10 → SJC 16:04DL 1260	6h 02m	99%	80%
Alaska Details →	BOI 09:13 → PDX 09:34AS 2184 · flown by Horizon	1h 10m Portland	PDX 10:44 → SJC 12:37AS 1413	4h 24m	94%	80%

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Sat, Oct 10 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON