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 4% of the time at 9 am and 1 time in 3 at 8 pm.

Nonstops


United	IAH	FLL	2h 36m	85%	0.7%	1,830	Flying now
United	IAH	MIA	2h 38m	82%	0.2%	1,469	Flying now
United	IAH	PBI	2h 35m	80%	1.0%	508	Flying now
American	IAH	MIA	2h 38m	78%	1.2%	1,688	Flying now
Frontier	IAH	MIA	2h 54m	68%	4.0%	175	Flying now
Southwest	HOU	FLL	2h 20m	67%	0.4%	809	Flying now
Frontier	IAH	FLL	2h 41m	63%	4.5%	134	Flying now
Southwest	HOU	MIA	2h 20m	50%	0.7%	288	Flying now
JetBlue	IAH	FLL	2h 23m	36%	2.9%	68	Flying now
Spirit	IAH	FLL	2h 28m	73%	1.9%	789	Not flying now
Spirit	IAH	MIA	2h 33m	70%	3.2%	380	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	IAH 05:15 → DEN 06:47UA 1874	3h 00m Denver	DEN 09:47 → FLL 15:47UA 2188	9h 32m	99%	82%
American Details →	IAH 06:01 → CLT 09:43AA 2011	1h 18m Charlotte	CLT 11:01 → MIA 13:11AA 969	6h 09m	94%	79%
Southwest Details →	HOU 05:25 → BWI 09:30WN 3797	2h 15m Baltimore	BWI 11:45 → MIA 14:20WN 4737	7h 55m	100%	79%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	2h 17m Atlanta	ATL 11:00 → MIA 13:04DL 1332	6h 24m	99%	78%
United Details →	IAH 06:01 → EWR 10:36UA 1797	2h 49m Newark	EWR 13:25 → FLL 16:35UA 651	9h 34m	100%	78%
Delta Details →	IAH 05:20 → DTW 09:11DL 1389	3h 19m Detroit	DTW 12:30 → FLL 15:35DL 1294	9h 15m	99%	78%
Delta Details →	IAH 08:05 → ATL 11:09DL 644	2h 49m Atlanta	ATL 13:58 → PBI 15:50DL 838	6h 45m	100%	77%
Delta Details →	HOU 06:00 → ATL 09:05DL 2557	1h 58m Atlanta	ATL 11:03 → PBI 12:54DL 1190	5h 56m	97%	76%
Tight connection: often missed
United Details →	IAH 07:20 → DEN 08:52UA 1575	55m Denver	DEN 09:47 → FLL 15:47UA 2188	7h 27m	75%	61%
American Details →	IAH 07:01 → PHL 11:23AA 2561	49m Philadelphia	PHL 12:12 → FLL 15:05AA 1855	7h 04m	64%	39%
American Details →	IAH 13:36 → ORD 16:35AA 1915	1h 25m Chicago	ORD 18:00 → MIA 22:17AA 2690	7h 41m	68%	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

ATL · 1h 07m · leaves 05:40 4%

DCA · 1h 00m · leaves 06:43 6%

CLT · 1h 18m · leaves 06:01 6%

Afternoon and evening

EWR · 1h 09m · leaves 14:49 33%

DFW · 1h 04m · leaves 14:04 47%

MDW · 1h 13m · leaves 15:58 56%

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 1043 IAH 11:32 → DTW American AA 3358 DTW 18:57 → MIA Connection details →	3h 37m	9h 38m	99%	90%
Southwest WN 4483 HOU 05:00 → MCO American AA 1712 MCO 11:02 → MIA Connection details →	2h 37m	6h 14m	100%	83%
Southwest WN 1970 HOU 05:30 → DEN United UA 2188 DEN 09:47 → FLL Connection details →	2h 52m	9h 17m	100%	82%

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