Tickets
Any day
Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Tue 12:00 PM ET · connections flying that day

Sat, Oct 10: United via SFO, leaving 05:15, is the safest bet: 87% chance of reaching Kailua/Kona on time.

Nonstops that day

All 1 nonstop →
UA 1758 United Flight history → DEN 12:15 KOA 15:37 15% 6% 0.5% 85%

Best connections that day, one ticket

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

UnitedDetails → DEN 05:15 → SFO 06:53UA 2367 1h 17m San Francisco SFO 08:10 → KOA 10:40UA 1721 9h 25m 97% 87%
DeltaDetails → DEN 12:23 → LAX 13:50DL 2148 2h 54m Los Angeles LAX 16:44 → KOA 19:17DL 311 10h 54m 98% 83%
UnitedDetails → DEN 13:25 → SFO 15:09UA 1812 3h 38m San Francisco SFO 18:47 → KOA 21:19UA 1723 11h 54m 98% 82%
AmericanDetails → DEN 07:13 → PHX 08:08AA 1404 2h 32m Phoenix PHX 10:40 → KOA 14:06AA 663 10h 53m 97% 76%
AlaskaDetails → DEN 07:05 → SEA 08:51AS 317 1h 25m Seattle SEA 10:16 → KOA 13:14AS 709 10h 09m 93% 65%
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