Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: OO 5659 at 07:10 is the safest bet, 12% chance of being 15+ min late; the others run 27%.

Nonstops that day

All 2 nonstops →


OO 5659 SkyWest	SUN 07:10	DEN 09:20	12%	7%	3.9%	no record
UA 5268 United flown by SkyWest Flight history →	SUN 14:38	DEN 16:45	27%	11%	0.9%	79%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival. Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	SUN 07:20 → SLC 08:27DL 4037 · flown by SkyWest	1h 48m Salt Lake City	SLC 10:15 → DEN 11:47DL 1553	4h 27m	96%	77%
United Details →	SUN 15:35 → LAX 17:11UA 6008 · flown by SkyWest	1h 34m Los Angeles	LAX 18:45 → DEN 22:15UA 2610	6h 40m	96%	71%
Alaska Details →	SUN 10:20 → SEA 11:14AS 2325 · flown by Horizon	2h 02m Seattle	SEA 13:16 → DEN 16:52AS 602	6h 32m	100%	53%
Delta Details →	SUN 13:10 → SLC 14:21DL 4019 · flown by SkyWest	1h 03m Salt Lake City	SLC 15:24 → DEN 16:53DL 1623	3h 43m	88%	47%

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 Sun, Oct 11 (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