tailodds FORECAST
Tickets
Any day
Monday, October 5 · our forecast odds · issued Sun 5:00 PM ET · connections flying that day

Tomorrow: 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

Most reliable Quickest (80%+ on time)

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 06:10 → ORD 07:30UA 4728 · flown by SkyWest 1h 21m Chicago ORD 08:51 → IAH 11:51UA 535 6h 41m 97% 86%
UnitedDetails → GSP 10:30 → IAD 12:08UA 4958 · flown by CommuteAir 2h 49m Dulles IAD 14:57 → IAH 17:19UA 2607 7h 49m 99% 83%
UnitedDetails → GSP 10:45 → ORD 11:59UA 5361 · flown by SkyWest 2h 16m Chicago ORD 14:15 → IAH 17:20UA 2451 7h 35m 99% 83%
UnitedDetails → GSP 17:43 → ORD 19:00UA 5524 · flown by SkyWest 2h 40m Chicago ORD 21:40 → IAH 00:34 +1UA 2665 7h 51m 95% 81%
DeltaDetails → GSP 05:44 → ATL 06:43DL 3028 3h 22m Atlanta ATL 10:05 → IAH 11:14DL 1682 6h 30m 98% 79%
DeltaDetails → GSP 08:52 → ATL 09:58DL 1619 2h 29m Atlanta ATL 12:27 → IAH 13:33DL 1572 5h 41m 97% 76%
AmericanDetails → GSP 11:47 → ORD 12:58AA 4160 · flown by Envoy 2h 09m Chicago ORD 15:07 → IAH 18:01AA 1913 7h 14m 100% 75%
AmericanDetails → GSP 08:14 → ORD 09:31AA 3564 · flown by Envoy 1h 34m Chicago ORD 11:05 → IAH 14:02AA 3322 6h 48m 96% 74%
Tight connection: often missed
AmericanDetails → GSP 11:31 → ORD 12:40AA 3556 · flown by Envoy 49m Chicago ORD 13:29 → IAH 16:25AA 4426 · flown by Republic 5h 54m 72% 64%
DeltaDetails → GSP 15:31 → LGA 17:35DL 5463 · flown by Endeavor 54m New York LGA 18:29 → IAH 21:44DL 2109 7h 13m 65% 44%
AmericanDetails → GSP 11:17 → DCA 13:01AA 5267 · flown by PSA 58m Washington DCA 13:59 → IAH 16:22AA 5333 · flown by PSA 6h 05m 68% 44%
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 Mon, Oct 5 (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