Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · connections flying that day

Fri, Oct 9: one nonstop, UA 1702 at 16:17, with a 24% chance of arriving 15+ min late.

Nonstops that day

All 2 nonstops →


UA 1702 United Flight history →	BZN 16:17	SFO 17:50	24%	14%	0.6%	56%
AS 2063 Alaska flown by Horizon no forecast: 12-month record	BZN 17:51	SFO 19:25	82%	43%	5.8%	18%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BZN 06:00 → MSP 09:11DL 1678	1h 49m Minneapolis	MSP 11:00 → SFO 13:09DL 2074	8h 09m	98%	82%
United Details →	BZN 10:33 → DEN 12:25UA 1824	3h 22m Denver	DEN 15:47 → SFO 17:30UA 2633	7h 57m	100%	79%
United Details →	BZN 06:30 → DEN 08:24UA 1362	2h 57m Denver	DEN 11:21 → SFO 13:04UA 1561	7h 34m	98%	77%
United Details →	BZN 16:29 → DEN 18:23UA 1322	2h 47m Denver	DEN 21:10 → SFO 22:56UA 2123	7h 27m	98%	76%
Delta Details →	BZN 05:15 → SLC 06:34DL 491	1h 16m Salt Lake City	SLC 07:50 → SFO 08:51DL 920	4h 36m	98%	76%
United Details →	BZN 17:26 → LAX 19:07UA 741	2h 27m Los Angeles	LAX 21:34 → SFO 23:02UA 2056	6h 36m	97%	73%
United Details →	BZN 14:26 → DEN 16:20UA 2258	1h 34m Denver	DEN 17:54 → SFO 19:40UA 1007	6h 14m	93%	72%
Delta Details →	BZN 19:30 → SLC 20:55DL 3676 · flown by SkyWest	1h 55m Salt Lake City	SLC 22:50 → SFO 23:52DL 1091	5h 22m	98%	70%
Tight connection: often missed
Alaska Details →	BZN 16:04 → PDX 16:50AS 2021 · flown by Horizon	46m Portland	PDX 17:36 → SFO 19:30AS 504	4h 26m	71%	54%
Delta Details →	BZN 15:54 → SEA 16:58DL 4174 · flown by SkyWest	52m Seattle	SEA 17:50 → SFO 20:16DL 3991 · flown by SkyWest	5h 22m	53%	35%

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 Fri, Oct 9 (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