Tickets
Any day
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: one nonstop, UA 5711 at 16:25, with a 18% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →
UA 5711 United flown by SkyWest Flight history → SFO 16:25 ASE 19:55 18% 9% 1.2% 55%

Best connections that day, one ticket

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

DeltaDetails → SFO 09:20 → LAX 10:53DL 1421 3h 11m Los Angeles LAX 14:04 → ASE 17:16DL 3704 · flown by SkyWest 6h 56m 98% 86%
UnitedDetails → SFO 12:15 → LAX 13:55UA 1506 2h 25m Los Angeles LAX 16:20 → ASE 19:33UA 5786 · flown by SkyWest 6h 18m 98% 85%
UnitedDetails → SFO 10:40 → DEN 14:23UA 1604 3h 02m Denver DEN 17:25 → ASE 18:29UA 5775 · flown by SkyWest 6h 49m 99% 81%
UnitedDetails → SFO 14:20 → DEN 18:12UA 1596 2h 37m Denver DEN 20:49 → ASE 21:45UA 5781 · flown by SkyWest 6h 25m 95% 81%
UnitedDetails → SFO 12:43 → DEN 16:35UA 540 2h 35m Denver DEN 19:10 → ASE 20:11UA 5779 · flown by SkyWest 6h 28m 96% 79%
UnitedDetails → SFO 05:00 → DEN 08:35UA 1479 2h 43m Denver DEN 11:18 → ASE 12:26UA 5769 · flown by SkyWest 6h 26m 98% 77%
Tight connection: often missed
UnitedDetails → SFO 14:20 → DEN 18:12UA 1596 58m Denver DEN 19:10 → ASE 20:11UA 5779 · flown by SkyWest 4h 51m 69% 57%
UnitedDetails → SFO 12:43 → DEN 16:35UA 540 50m Denver DEN 17:25 → ASE 18:29UA 5775 · flown by SkyWest 4h 46m 63% 51%
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