Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

Take the nonstop: United STT → IAH (5h 03m) reaches Houston on time 84% of the time; the most reliable connection, Delta via Atlanta (7h 05m), 72%.

Nonstops (seasonal or thin)


United	STT	IAH	5h 03m	85%	1.7%	173	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included (Houston is 1 h behind Charlotte Amalie). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	STT 15:29 → ATL 19:29DL 1889	3h 15m Atlanta	ATL 22:44 → IAH 23:56DL 1601	9h 27m	100%	75%
United Details →	STT 16:45 → IAD 20:58UA 1445	1h 22m Dulles	IAD 22:20 → IAH 00:45 +1UA 1986	9h 00m	91%	73%
Delta Details →	STT 13:20 → ATL 17:18DL 1823	3h 03m Atlanta	ATL 20:21 → IAH 21:34DL 1284	9h 14m	96%	68%
American Details →	STT 16:50 → MIA 19:54AA 2738	2h 21m Miami	MIA 22:15 → IAH 23:59AA 2230	8h 09m	97%	67%
American Details →	STT 13:49 → MIA 16:50AA 2744	2h 52m Miami	MIA 19:42 → IAH 21:33AA 2541	8h 44m	99%	63%
American Details →	STT 11:43 → CLT 15:49AA 2431	2h 52m Charlotte	CLT 18:41 → IAH 20:33AA 2935	9h 50m	100%	62%
American Details →	STT 14:28 → DFW 19:14AA 2743	1h 56m Dallas-Fort Worth	DFW 21:10 → IAH 22:24AA 2209	8h 56m	94%	43%

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.

Afternoon and evening

ATL · 51m · leaves 15:33 22%

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

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Delta DL 1889 STT 15:29 → ATL Frontier F9 4075 ATL 21:25 → IAH Connection details →	1h 56m	8h 19m	100%	62%
American AA 2431 STT 11:43 → CLT Frontier F9 2395 CLT 17:57 → IAH Connection details →	2h 08m	9h 09m	93%	55%
Delta DL 1823 STT 13:20 → ATL United UA 2376 ATL 18:57 → IAH Connection details →	1h 39m	7h 55m	78%	46%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

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