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 7 am and 1 time in 3 at 10 pm.

Nonstops


United	LAS	IAH	3h 05m	86%	0.4%	2,594	Flying now
Frontier	LAS	IAH	3h 30m	79%	2.2%	368	Flying now
Spirit	LAS	IAH	2h 59m	79%	2.8%	470	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 2 h ahead of Las Vegas). Layovers up to 4 hours. Pick a connection for the details.


United Details →	LAS 23:59 → ORD 05:40UA 726	1h 55m Chicago	ORD 07:35 → IAH 10:36 +1UA 1231	8h 37m	100%	90%
United Details →	LAS 20:31 → LAX 21:55UA 2282	2h 56m Los Angeles	LAX 00:51 → IAH 06:12 +1UA 491	7h 41m	99%	89%
United Details →	LAS 14:15 → LAX 15:35UA 2184	3h 46m Los Angeles	LAX 19:21 → IAH 00:50 +1UA 387	8h 35m	99%	89%
United Details →	LAS 06:00 → LAX 07:14UA 2039	2h 56m Los Angeles	LAX 10:10 → IAH 15:40UA 277	7h 40m	100%	88%
United Details →	LAS 06:00 → SFO 07:35UA 643	1h 20m San Francisco	SFO 08:55 → IAH 15:07UA 2498	7h 07m	99%	88%
United Details →	LAS 23:30 → ORD 05:11UA 2102	1h 18m Chicago	ORD 06:29 → IAH 09:18 +1UA 1799	7h 48m	95%	87%
United Details →	LAS 10:45 → LAX 12:05UA 203	3h 15m Los Angeles	LAX 15:20 → IAH 20:49UA 2377	8h 04m	100%	86%
Delta Details →	LAS 06:00 → SLC 08:20DL 2674	1h 05m Salt Lake City	SLC 09:25 → IAH 13:28DL 2502	5h 28m	97%	86%
Tight connection: often missed
Alaska Details →	LAS 07:22 → SEA 10:05AS 479	47m Seattle	SEA 10:52 → IAH 17:16AS 438	7h 54m	70%	48%
Delta Details →	LAS 10:41 → ATL 17:45DL 777	54m Atlanta	ATL 18:39 → IAH 19:52DL 1131	7h 11m	75%	43%
American Details →	LAS 16:34 → PHX 17:48AA 3186	1h 04m Phoenix	PHX 18:52 → IAH 23:29AA 2357	4h 58m	59%	39%

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

SFO · 1h 20m · leaves 06:00 1%

SLC · 1h 05m · leaves 06:00 3%

LAX · 56m · leaves 06:00 4%

Afternoon and evening

PHX · 1h 04m · leaves 16:34 41%

DFW · 46m · leaves 15:23 52%

SFO · 1h 02m · leaves 21:15 75%

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 2335 LAS 20:55 → SAT United UA 469 SAT 05:30 → IAH Connection details →	3h 55m	7h 42m	100%	92%
Southwest WN 4337 LAS 09:05 → MKE United UA 6261 MKE 17:56 → IAH Connection details →	3h 21m	9h 50m	100%	90%
Southwest WN 4342 LAS 06:05 → SAN United UA 2165 SAN 10:13 → IAH Connection details →	2h 58m	7h 35m	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