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 7% of the time at 9 am and almost half the time at 8 pm.

Nonstops


Delta	IAH	LAX	3h 41m	89%	1.1%	646	Flying now
United	IAH	SNA	3h 41m	88%	0.0%	1,092	Flying now
Southwest	HOU	LGB	3h 28m	87%	0.4%	461	Flying now
United	IAH	LAX	3h 37m	85%	0.3%	3,439	Flying now
American	IAH	LAX	3h 46m	81%	0.5%	409	Flying now
Southwest	HOU	ONT	3h 25m	80%	0.3%	362	Flying now
United	IAH	ONT	3h 26m	79%	0.0%	365	Flying now
Frontier	IAH	ONT	3h 31m	78%	0.5%	196	Flying now
Frontier	IAH	LAX	3h 36m	75%	0.9%	332	Flying now
Southwest	HOU	LAX	3h 35m	75%	0.1%	1,195	Flying now
Southwest	HOU	BUR	3h 35m	82%	0.0%	147	Not flying now
Spirit	IAH	LAX	3h 41m	82%	1.3%	394	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Los Angeles area on time. Total trip = scheduled departure to arrival, layover included (Los Angeles is 2 h behind Houston). Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAH 14:20 → PHX 15:10UA 1238	3h 44m Phoenix	PHX 18:54 → LAX 20:31UA 4722 · flown by SkyWest	8h 11m	100%	97%
Southwest Details →	HOU 07:35 → SMF 09:25WN 2082	3h 45m Sacramento	SMF 13:10 → LGB 14:40WN 2414	9h 05m	100%	96%
United Details →	IAH 07:20 → LAS 08:35UA 1264	2h 10m Las Vegas	LAS 10:45 → LAX 12:05UA 203	6h 45m	99%	93%
Southwest Details →	HOU 07:35 → OAK 09:30WN 2056	1h 20m Oakland	OAK 10:50 → ONT 12:10WN 3062	6h 35m	96%	93%
United Details →	IAH 12:05 → MCI 14:15UA 6152 · flown by Mesa	2h 11m Kansas City	MCI 16:26 → LAX 18:10UA 5489 · flown by SkyWest	8h 05m	97%	93%
Southwest Details →	HOU 07:50 → LAS 09:00WN 1998	2h 35m Las Vegas	LAS 11:35 → LGB 12:45WN 2260	6h 55m	98%	92%
Southwest Details →	HOU 05:30 → DEN 06:55WN 1970	2h 40m Denver	DEN 09:35 → LAX 11:05WN 1569	7h 35m	100%	91%
United Details →	IAH 08:30 → DEN 10:05UA 2816	3h 21m Denver	DEN 13:26 → LAX 14:57UA 774	8h 27m	100%	91%
Tight connection: often missed
American Details →	IAH 08:31 → PHX 09:24AA 1937	51m Phoenix	PHX 10:15 → SNA 11:43AA 2655	5h 12m	69%	43%
United Details →	IAH 18:05 → SFO 20:10UA 1341	50m San Francisco	SFO 21:00 → ONT 22:37UA 552	6h 32m	52%	42%
American Details →	IAH 11:26 → ORD 14:17AA 1909	1h 04m Chicago	ORD 15:21 → LAX 17:43AA 529	8h 17m	67%	38%

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 11m · leaves 05:22 2%

PHX · 1h 20m · leaves 06:20 2%

DEN · 1h 13m · leaves 05:15 3%

Afternoon and evening

MIA · 59m · leaves 11:20 44%

SFO · 50m · leaves 18:05 48%

DFW · 51m · leaves 18:53 84%

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.


United UA 756 IAH 09:45 → SLC Delta DL 3793 SLC 15:05 → LGB Connection details →	3h 06m	8h 25m	100%	94%
Southwest WN 2251 HOU 05:30 → LAS American AA 6425 LAS 10:04 → LAX Connection details →	3h 34m	7h 54m	100%	93%
United UA 1264 IAH 07:20 → LAS Southwest WN 2260 LAS 11:35 → LGB Connection details →	3h 00m	7h 25m	99%	93%

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