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Any day
Today: only flights still to leave (it’s 6:04 pm at Houston); 1 already left
Sunday, October 4 · our forecast odds · issued Sun 5:00 PM ET · connections flying that day

Today: no forecasts for this route’s flights; their 12-month records are below.

Nonstops today

All 1 nonstop →
UA 4033 United flown by Mesa no forecast: 12-month record IAH 19:50 GSP 23:19 19% 17% 0.0% 81%

Best connections today, one ticket

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

Tight connection: often missed
DeltaDetails → IAH 18:53 → ATL 21:56DL 1651 58m Atlanta ATL 22:54 → GSP 23:54DL 2281 4h 01m 30% 15%

No one-ticket connection fits with layovers up to 4 hours that day. Try any airlines.

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 Sun, Oct 4 (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