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

Connect in the morning. The same one-hour layover misses 3% of the time at 7 am and barely half the time at 6 pm.

Nonstops


United	FLL	IAH	2h 58m	88%	0.7%	1,830	Flying now
United	MIA	IAH	3h 00m	87%	0.4%	1,468	Flying now
Frontier	MIA	IAH	2h 54m	83%	4.0%	176	Flying now
United	PBI	IAH	3h 01m	82%	1.2%	507	Flying now
Southwest	MIA	HOU	2h 50m	73%	0.7%	290	Flying now
American	MIA	IAH	2h 58m	73%	1.1%	1,689	Flying now
Southwest	FLL	HOU	2h 50m	72%	0.9%	811	Flying now
JetBlue	FLL	IAH	3h 02m	66%	4.3%	69	Flying now
Frontier	FLL	IAH	2h 54m	50%	3.0%	134	Flying now
Spirit	FLL	IAH	2h 56m	72%	1.9%	783	Not flying now
Spirit	MIA	IAH	3h 01m	70%	2.9%	380	Not 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 Miami). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MIA 05:25 → MCO 06:30WN 4086	1h 35m Orlando	MCO 08:05 → HOU 09:35WN 2637	5h 10m	96%	92%
Southwest Details →	PBI 06:10 → MCO 07:10WN 3083	2h 30m Orlando	MCO 09:40 → HOU 11:10WN 3174	6h 00m	100%	89%
United Details →	FLL 07:55 → EWR 10:59UA 2330	1h 37m Newark	EWR 12:36 → IAH 15:34UA 2204	8h 39m	99%	87%
Southwest Details →	FLL 06:25 → BWI 08:55WN 396	1h 05m Baltimore	BWI 10:00 → HOU 12:15WN 956	6h 50m	98%	86%
Southwest Details →	FLL 06:10 → MDW 08:10WN 1866	2h 00m Chicago	MDW 10:10 → HOU 12:50WN 2783	7h 40m	100%	86%
United Details →	FLL 11:20 → CLE 14:05UA 2067	1h 06m Cleveland	CLE 15:11 → IAH 17:25UA 1545	7h 05m	94%	84%
Delta Details →	MIA 08:17 → ATL 10:20DL 1261	2h 10m Atlanta	ATL 12:30 → IAH 13:38DL 1572	6h 21m	99%	84%
United Details →	FLL 08:40 → IAD 11:14UA 2169	1h 36m Dulles	IAD 12:50 → IAH 15:11UA 1535	7h 31m	99%	82%
Tight connection: often missed
United Details →	FLL 16:20 → ORD 19:00UA 403	1h 02m Chicago	ORD 20:02 → IAH 22:59UA 2813	7h 39m	54%	29%
American Details →	MIA 15:30 → DFW 17:50AA 1199	46m Dallas-Fort Worth	DFW 18:36 → IAH 19:54AA 1392	5h 24m	45%	22%
American Details →	FLL 17:28 → ORD 19:59AA 2440	1h 08m Chicago	ORD 21:07 → IAH 23:51AA 3144	7h 23m	39%	19%

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

BWI · 1h 05m · leaves 06:25 2%

ATL · 1h 00m · leaves 05:25 3%

DEN · 1h 16m · leaves 08:00 4%

Afternoon and evening

DFW · 46m · leaves 15:30 55%

ORD · 1h 08m · leaves 17:28 61%

BNA · 55m · leaves 20:25 73%

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 2090 MIA 07:35 → MCO United UA 1493 MCO 11:57 → IAH Connection details →	3h 07m	6h 54m	100%	95%
American AA 1299 MIA 08:02 → DCA United UA 382 DCA 12:59 → IAH Connection details →	2h 21m	8h 16m	99%	89%
American AA 3609 MIA 08:02 → JAX United UA 4039 JAX 11:37 → IAH Connection details →	2h 10m	6h 09m	100%	89%

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