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

Sat, Oct 10: 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.

UnitedDetails → GSP 10:30 → IAD 12:08UA 4958 · flown by CommuteAir 2h 52m Dulles IAD 15:00 → IAH 17:23UA 2607 7h 53m 99% 85%
DeltaDetails → GSP 06:00 → ATL 07:03DL 3028 2h 59m Atlanta ATL 10:02 → IAH 11:11DL 1682 6h 11m 98% 82%
DeltaDetails → GSP 08:45 → ATL 09:51DL 1619 2h 36m Atlanta ATL 12:27 → IAH 13:33DL 1572 5h 48m 98% 81%
DeltaDetails → GSP 11:02 → ATL 12:06DL 2158 3h 20m Atlanta ATL 15:26 → IAH 16:39DL 1223 6h 37m 100% 80%
AmericanDetails → GSP 07:01 → DFW 08:44AA 1254 1h 38m Dallas-Fort Worth DFW 10:22 → IAH 11:39AA 3829 · flown by Envoy 5h 38m 95% 78%
AmericanDetails → GSP 09:04 → CLT 10:25AA 5798 · flown by Piedmont 2h 19m Charlotte CLT 12:44 → IAH 14:27AA 398 6h 23m 98% 77%
DeltaDetails → GSP 06:00 → LGA 07:59DL 5171 · flown by Endeavor 1h 00m New York LGA 08:59 → IAH 11:38DL 2099 6h 38m 91% 76%
UnitedDetails → GSP 17:43 → ORD 19:00UA 5524 · flown by SkyWest 2h 40m Chicago ORD 21:40 → IAH 00:34 +1UA 2665 7h 51m 96% 71%
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