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

No clear winner: United’s HSV → IAH flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


United	HSV	IAH	2h 10m	80%	0.6%	1,450	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. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	HSV 07:12 → ATL 09:15DL 3009	3h 15m Atlanta	ATL 12:30 → IAH 13:38DL 1572	6h 26m	99%	83%
Delta Details →	HSV 05:30 → ATL 07:32DL 2556	2h 33m Atlanta	ATL 10:05 → IAH 11:18DL 1682	5h 48m	99%	79%
United Details →	HSV 08:05 → IAD 11:11UA 4240 · flown by CommuteAir	1h 39m Dulles	IAD 12:50 → IAH 15:11UA 1535	7h 06m	94%	78%
United Details →	HSV 08:00 → DEN 10:20UA 4640 · flown by SkyWest	1h 14m Denver	DEN 11:34 → IAH 15:09UA 1599	7h 09m	92%	72%
United Details →	HSV 07:15 → ORD 09:33UA 4480 · flown by GoJet	52m Chicago	ORD 10:25 → IAH 13:23UA 2638	6h 08m	83%	71%
Delta Details →	HSV 18:17 → ATL 20:28DL 2182	2h 16m Atlanta	ATL 22:44 → IAH 23:56DL 1601	5h 39m	96%	70%
United Details →	HSV 18:00 → IAD 21:06UA 4351 · flown by CommuteAir	1h 14m Dulles	IAD 22:20 → IAH 00:45 +1UA 1986	6h 45m	88%	70%
United Details →	HSV 15:35 → DEN 17:55UA 5393 · flown by SkyWest	1h 40m Denver	DEN 19:35 → IAH 23:06UA 475	7h 31m	92%	69%
Tight connection: often missed
American Details →	HSV 11:16 → CLT 13:57AA 5810 · flown by Piedmont	55m Charlotte	CLT 14:52 → IAH 16:38AA 1920	5h 21m	75%	53%
United Details →	HSV 12:57 → ORD 15:10UA 4469 · flown by GoJet	55m Chicago	ORD 16:05 → IAH 19:10UA 714	6h 13m	62%	43%
American Details →	HSV 15:37 → DFW 17:48AA 3580 · flown by Envoy	48m Dallas-Fort Worth	DFW 18:36 → IAH 19:54AA 1392	4h 17m	60%	29%

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.

Morning

DEN · 1h 14m · leaves 08:00 8%

DFW · 1h 16m · leaves 05:00 8%

ATL · 50m · leaves 07:12 15%

Afternoon and evening

CLT · 1h 19m · leaves 14:37 15%

ORD · 55m · leaves 12:57 38%

DFW · 48m · leaves 15:37 40%

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.


American AA 3940 HSV 05:45 → CLT United UA 6236 CLT 11:48 → IAH Connection details →	3h 26m	7h 49m	100%	90%
Delta DL 3009 HSV 07:12 → ATL United UA 425 ATL 11:37 → IAH Connection details →	2h 22m	5h 35m	96%	84%
American AA 3394 HSV 05:00 → DFW United UA 1586 DFW 09:46 → IAH Connection details →	2h 35m	6h 03m	96%	78%

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