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 12% of the time at 8 am and barely half the time at 6 pm.

Nonstops


United	MIA	IAH	3h 00m	87%	0.4%	1,468	Flying now
Frontier	MIA	IAH	2h 54m	83%	4.0%	176	Flying now
American	MIA	IAH	2h 58m	73%	1.1%	1,689	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.


United Details →	MIA 07:07 → EWR 10:11UA 1864	2h 25m Newark	EWR 12:36 → IAH 15:34UA 2204	9h 27m	98%	85%
Delta Details →	MIA 08:17 → ATL 10:20DL 1261	2h 10m Atlanta	ATL 12:30 → IAH 13:38DL 1572	6h 21m	99%	84%
Delta Details →	MIA 13:38 → DTW 16:49DL 1468	3h 36m Detroit	DTW 20:25 → IAH 22:24DL 1633	9h 46m	99%	78%
United Details →	MIA 08:48 → EWR 11:54UA 408	2h 18m Newark	EWR 14:12 → IAH 17:10UA 2690	9h 22m	96%	77%
Delta Details →	MIA 06:00 → ATL 08:05DL 1249	2h 00m Atlanta	ATL 10:05 → IAH 11:18DL 1682	6h 18m	97%	77%
American Details →	MIA 08:28 → ORD 10:59AA 1431	2h 30m Chicago	ORD 13:29 → IAH 16:27AA 4426 · flown by Republic	8h 57m	96%	77%
American Details →	MIA 06:45 → PHL 09:38AA 2129	3h 24m Philadelphia	PHL 13:02 → IAH 15:47AA 1925	10h 02m	98%	75%
United Details →	MIA 15:44 → DEN 18:23UA 2852	2h 05m Denver	DEN 20:28 → IAH 23:59UA 2419	9h 15m	95%	75%
Tight connection: often missed
American Details →	MIA 17:00 → ORD 19:53AA 3056	1h 14m Chicago	ORD 21:07 → IAH 23:51AA 3144	7h 51m	69%	34%
American Details →	MIA 17:30 → DFW 19:56AA 3260	1h 14m Dallas-Fort Worth	DFW 21:10 → IAH 22:24AA 2209	5h 54m	65%	30%
American Details →	MIA 15:30 → DFW 17:50AA 1199	46m Dallas-Fort Worth	DFW 18:36 → IAH 19:54AA 1392	5h 24m	45%	22%

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

MSP · 59m · leaves 06:35 8%

PHL · 1h 07m · leaves 09:00 11%

DFW · 55m · leaves 05:25 12%

Afternoon and evening

CLT · 1h 00m · leaves 17:23 33%

ORD · 1h 09m · leaves 16:10 34%

DFW · 46m · leaves 15:30 55%

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 491 MIA 06:19 → DCA United UA 382 DCA 12:59 → IAH Connection details →	3h 59m	9h 59m	100%	90%
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