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 5% of the time at 8 am and 43% of the time at 11 pm.

Nonstops


United	LAX	IAH	3h 21m	88%	0.2%	3,438	Flying now
Delta	LAX	IAH	3h 25m	86%	1.1%	646	Flying now
American	LAX	IAH	3h 25m	83%	0.5%	408	Flying now
Frontier	LAX	IAH	3h 30m	70%	1.5%	332	Flying now
Spirit	LAX	IAH	3h 19m	76%	1.3%	392	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 Los Angeles). Layovers up to 4 hours. Pick a connection for the details.


United Details →	LAX 09:20 → SMF 10:56UA 5372 · flown by SkyWest	2h 19m Sacramento	SMF 13:15 → IAH 19:10UA 1949	7h 50m	100%	88%
United Details →	LAX 22:35 → ORD 04:51UA 353	1h 38m Chicago	ORD 06:29 → IAH 09:18 +1UA 1799	8h 43m	94%	86%
United Details →	LAX 06:00 → SFO 07:35UA 2647	1h 20m San Francisco	SFO 08:55 → IAH 15:07UA 2498	7h 07m	98%	86%
United Details →	LAX 05:10 → ORD 11:27UA 580	1h 13m Chicago	ORD 12:40 → IAH 15:40UA 1448	8h 30m	98%	85%
United Details →	LAX 10:10 → MCI 15:45UA 5426 · flown by SkyWest	2h 35m Kansas City	MCI 18:20 → IAH 20:40UA 6113 · flown by Mesa	8h 30m	100%	85%
Delta Details →	LAX 05:35 → SLC 08:30DL 2906	55m Salt Lake City	SLC 09:25 → IAH 13:28DL 2502	5h 53m	95%	85%
United Details →	LAX 08:20 → LAS 09:42UA 1006	2h 32m Las Vegas	LAS 12:14 → IAH 17:25UA 2492	7h 05m	99%	82%
American Details →	LAX 22:35 → CLT 06:19AA 3035	1h 23m Charlotte	CLT 07:42 → IAH 09:25 +1AA 1930	8h 50m	90%	82%
Tight connection: often missed
United Details →	LAX 12:50 → ORD 19:05UA 457	57m Chicago	ORD 20:02 → IAH 22:59UA 2813	8h 09m	66%	35%
American Details →	LAX 13:25 → ORD 19:59AA 3134	1h 08m Chicago	ORD 21:07 → IAH 23:51AA 3144	8h 26m	61%	30%
American Details →	LAX 15:00 → DFW 20:18AA 2994	52m Dallas-Fort Worth	DFW 21:10 → IAH 22:24AA 2209	5h 24m	55%	25%

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

ORD · 1h 13m · leaves 05:10 2%

SFO · 1h 20m · leaves 06:00 2%

SLC · 55m · leaves 05:35 5%

Afternoon and evening

ORD · 1h 08m · leaves 13:25 39%

SFO · 57m · leaves 21:34 43%

DFW · 52m · leaves 15:00 45%

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 2403 LAX 05:35 → LAS United UA 1711 LAS 10:25 → IAH Connection details →	3h 35m	8h 05m	100%	91%
Southwest WN 4943 LAX 08:58 → ABQ United UA 6151 ABQ 12:13 → IAH Connection details →	2h 23m	4h 32m	98%	87%
Delta DL 3755 LAX 09:13 → SMF United UA 1949 SMF 13:15 → IAH Connection details →	2h 29m	7h 57m	98%	86%

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