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

Nonstops that day

All 2 nonstops →
UA 4049 United flown by Mesa no forecast: 12-month record GSP 07:00 IAH 08:33 13% 3% 0.0% 87%
UA 4038 United flown by Mesa no forecast: 12-month record GSP 17:10 IAH 18:45 20% 11% 0.0% 80%

Best connections that day, one ticket

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

DeltaDetails → GSP 05:44 → ATL 06:43DL 3028 1h 03m Atlanta ATL 07:46 → IAH 09:22DL 8839 4h 38m 95% 81%
DeltaDetails → GSP 08:52 → ATL 09:58DL 1619 2h 29m Atlanta ATL 12:27 → IAH 13:33DL 1572 5h 41m 98% 78%
DeltaDetails → GSP 06:45 → ATL 07:48DL 1146 2h 17m Atlanta ATL 10:05 → IAH 11:14DL 1682 5h 29m 98% 77%
DeltaDetails → GSP 11:12 → DTW 13:04DL 5195 · flown by Endeavor 2h 53m Detroit DTW 15:57 → IAH 18:03DL 1718 7h 51m 96% 74%
DeltaDetails → GSP 10:03 → ATL 11:04DL 3089 3h 39m Atlanta ATL 14:43 → IAH 15:54DL 1223 6h 51m 98% 73%
AmericanDetails → GSP 09:04 → CLT 10:25AA 5798 · flown by Piedmont 1h 57m Charlotte CLT 12:22 → IAH 14:05AA 398 6h 01m 98% 73%
AmericanDetails → GSP 07:01 → DFW 08:44AA 1254 1h 27m Dallas-Fort Worth DFW 10:11 → IAH 11:25AA 3829 · flown by Envoy 5h 24m 94% 71%
DeltaDetails → GSP 11:42 → ATL 12:45DL 2158 3h 38m Atlanta ATL 16:23 → IAH 17:35DL 1131 6h 53m 100% 70%
Tight connection: often missed
DeltaDetails → GSP 15:31 → LGA 17:35DL 5463 · flown by Endeavor 54m New York LGA 18:29 → IAH 21:44DL 2109 7h 13m 65% 48%
AmericanDetails → GSP 18:24 → ORD 19:37AA 4145 · flown by Envoy 1h 30m Chicago ORD 21:07 → IAH 23:51AA 3144 6h 27m 74% 29%
UnitedDetails → GSP 17:43 → ORD 19:00UA 5524 · flown by SkyWest 1h 02m Chicago ORD 20:02 → IAH 22:59UA 2813 6h 16m 59% 28%
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