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Any day
Tuesday, October 6 · our forecast odds · issued Mon 8:00 PM ET · connections flying that day

Tomorrow: Delta via Atlanta, leaving 10:03, is the safest bet: 85% chance of reaching Denver on time.

Nonstops that day

All 1 nonstop →
UA 2864 United GSP 16:21 DEN 17:50 12% 4% 0.6% no record

Best connections that day, one ticket

Ranked by chance you reach Denver on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Denver is 2 h behind Greenville). Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → GSP 05:44 → ATL 06:43DL 3028 3h 11m Atlanta ATL 09:54 → DEN 11:05DL 995 7h 21m 99% 92%
DeltaDetails → GSP 07:10 → DTW 08:57DL 876 3h 45m Detroit DTW 12:42 → DEN 13:45DL 1648 8h 35m 100% 92%
DeltaDetails → GSP 08:52 → ATL 09:58DL 1619 2h 57m Atlanta ATL 12:55 → DEN 14:00DL 957 7h 08m 99% 90%
DeltaDetails → GSP 10:03 → ATL 11:04DL 3089 2h 51m Atlanta ATL 13:55 → DEN 14:58DL 530 6h 55m 99% 89%
DeltaDetails → GSP 16:59 → ATL 18:06DL 3010 3h 04m Atlanta ATL 21:10 → DEN 22:22DL 493 7h 23m 99% 86%
AmericanDetails → GSP 10:10 → CLT 11:08AA 6119 · flown by Piedmont 1h 37m Charlotte CLT 12:45 → DEN 14:13AA 2174 6h 03m 100% 84%
DeltaDetails → GSP 11:42 → ATL 12:45DL 2158 3h 58m Atlanta ATL 16:43 → DEN 17:56DL 519 8h 14m 100% 84%
UnitedDetails → GSP 17:43 → ORD 19:00UA 5524 · flown by SkyWest 3h 02m Chicago ORD 22:02 → DEN 23:33UA 767 7h 50m 98% 84%
How these are worked out. Each flight’s odds are our forecast for that day; 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 Tue, Oct 6 (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