No nonstop, and no clear pattern: the best connection reaches Houston on time 4 times in 5.
Best connections, any airlines
Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.
| Southwest + Unitedtwo ticketsDetails → | DAL 06:05 → MCO 09:45WN 1434 | 2h 12m Orlando | MCO 11:57 → IAH 13:29UA 1493 | 7h 24m | 100% | 95% |
| Southwest + Unitedtwo ticketsDetails → | DAL 06:10 → TPA 09:35WN 1415 | 2h 20m Tampa | TPA 11:55 → IAH 13:22UA 2421 | 7h 12m | 100% | 89% |
| Southwest + Unitedtwo ticketsDetails → | DAL 06:20 → MSY 07:45WN 1466 | 2h 08m New Orleans | MSY 09:53 → IAH 11:12UA 2105 | 4h 52m | 98% | 88% |
| Southwest + Unitedtwo ticketsDetails → | DAL 06:00 → ATL 09:05WN 1261 | 2h 32m Atlanta | ATL 11:37 → IAH 12:47UA 425 | 6h 47m | 98% | 88% |
| Southwest + Unitedtwo ticketsDetails → | DAL 07:40 → MAF 09:00WN 801 | 2h 57m Midland | MAF 11:57 → IAH 13:37UA 4011 · flown by Mesa | 5h 57m | 98% | 84% |
| Southwest + Unitedtwo ticketsDetails → | DAL 07:20 → SAT 08:25WN 1396 | 3h 18m San Antonio | SAT 11:43 → IAH 12:55UA 6278 · flown by Mesa | 5h 35m | 96% | 83% |
| DeltaDetails → | DAL 06:05 → ATL 09:15DL 516 | 3h 15m Atlanta | ATL 12:30 → IAH 13:38DL 1572 | 7h 33m | 98% | 81% |
| Southwest + Unitedtwo ticketsDetails → | DAL 08:20 → AMA 09:35WN 3012 | 2h 21m Amarillo | AMA 11:56 → IAH 13:44UA 4827 · flown by CommuteAir | 5h 24m | 95% | 79% |
Same layover, different day-part
How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.
Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.
Mixing airlines
The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →
Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON