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 1 time in 10 at 9 am and almost half the time at 7 pm.

Nonstops


American	MIA	LAS	5h 29m	74%	0.7%	1,275	Flying now
Frontier	MIA	LAS	5h 07m	66%	1.1%	89	Flying now
Spirit	MIA	LAS	5h 30m	66%	3.8%	52	Not flying now
Delta	MIA	LAS	–	67%few flights	0.0%	3	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included (Las Vegas is 3 h behind Miami). Layovers up to 4 hours. Pick a connection for the details.


United Details →	MIA 06:30 → IAH 08:24UA 2074	3h 31m Houston	IAH 11:55 → LAS 13:13UA 1524	9h 43m	100%	88%
Southwest Details →	MIA 05:25 → MCO 06:30WN 4086	3h 30m Orlando	MCO 10:00 → LAS 11:45WN 4696	9h 20m	100%	88%
United Details →	MIA 07:07 → EWR 10:11UA 1864	2h 14m Newark	EWR 12:25 → LAS 14:53UA 1864	10h 46m	98%	83%
United Details →	MIA 08:48 → IAH 10:42UA 2417	3h 38m Houston	IAH 14:20 → LAS 15:37UA 1971	9h 49m	100%	83%
American Details →	MIA 06:21 → CLT 08:35AA 2187	2h 51m Charlotte	CLT 11:26 → LAS 13:06AA 2038	9h 45m	98%	81%
Frontier Details →	MIA 06:50 → DFW 09:07F9 2135	2h 49m Dallas-Fort Worth	DFW 11:56 → LAS 12:57F9 1051	9h 07m	97%	80%
Southwest Details →	MIA 05:10 → HOU 06:45WN 2927	1h 05m Houston	HOU 07:50 → LAS 09:00WN 1998	6h 45m	82%	80%
Delta Details →	MIA 06:35 → MSP 09:25DL 1056	1h 45m Minneapolis	MSP 11:10 → LAS 12:26DL 2238	8h 53m	97%	79%
Tight connection: often missed
American Details →	MIA 15:30 → DFW 17:50AA 1199	1h 32m Dallas-Fort Worth	DFW 19:22 → LAS 20:11AA 1771	7h 41m	72%	40%
American Details →	MIA 14:28 → DFW 16:50AA 2762	1h 00m Dallas-Fort Worth	DFW 17:50 → LAS 18:42AA 884	7h 14m	68%	36%
American Details →	MIA 17:00 → ORD 19:53AA 3056	1h 06m Chicago	ORD 20:59 → LAS 22:54AA 1465	8h 54m	63%	28%

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

LAX · 1h 18m · leaves 08:30 7%

IAH · 1h 13m · leaves 08:48 7%

ORD · 1h 08m · leaves 06:40 9%

Afternoon and evening

ORD · 57m · leaves 16:10 46%

BWI · 55m · leaves 15:05 47%

SFO · 1h 18m · leaves 18:35 51%

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.


Southwest WN 4086 MIA 05:25 → MCO Frontier F9 1875 MCO 09:19 → LAS Connection details →	2h 49m	9h 04m	96%	86%
American AA 603 MIA 07:00 → IAH United UA 1524 IAH 11:55 → LAS Connection details →	3h 05m	9h 13m	98%	85%
American AA 1918 MIA 08:41 → IAH United UA 1971 IAH 14:20 → LAS Connection details →	3h 51m	9h 56m	99%	83%

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