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 2 times in 5 at 5 pm.

Nonstops


Delta	IAH	LAX	3h 41m	89%	1.1%	646	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
Frontier	IAH	LAX	3h 36m	75%	0.9%	332	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 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%
United Details →	IAH 07:20 → LAS 08:35UA 1264	2h 10m Las Vegas	LAS 10:45 → LAX 12:05UA 203	6h 45m	99%	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%
United Details →	IAH 08:30 → DEN 10:05UA 2816	3h 21m Denver	DEN 13:26 → LAX 14:57UA 774	8h 27m	100%	91%
United Details →	IAH 06:30 → DEN 08:02UA 2643	2h 00m Denver	DEN 10:02 → LAX 11:34UA 405	7h 04m	100%	90%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	2h 47m Atlanta	ATL 11:30 → LAX 13:05DL 326	9h 28m	99%	90%
United Details →	IAH 05:15 → DEN 06:47UA 1874	1h 13m Denver	DEN 08:00 → LAX 09:32UA 1638	6h 17m	97%	90%
United Details →	IAH 10:15 → AUS 11:19UA 1823	2h 51m Austin	AUS 14:10 → LAX 15:40UA 5841 · flown by SkyWest	7h 25m	98%	89%
Tight connection: often missed
United Details →	IAH 18:19 → DEN 20:14UA 1654	1h 06m Denver	DEN 21:20 → LAX 22:55UA 531	6h 36m	69%	53%
United Details →	IAH 11:55 → ORD 14:51UA 2827	56m Chicago	ORD 15:47 → LAX 18:20UA 576	8h 25m	61%	45%
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

DEN · 1h 13m · leaves 05:15 3%

MIA · 1h 04m · leaves 05:10 7%

DFW · 1h 07m · leaves 06:02 9%

Afternoon and evening

MIA · 59m · leaves 11:20 44%

PHL · 51m · leaves 12:21 69%

DFW · 1h 11m · leaves 18:53 74%

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 4344 IAH 09:46 → OKC American AA 6272 OKC 14:22 → LAX Connection details →	3h 00m	7h 53m	96%	90%
United UA 2773 IAH 10:00 → SMF Delta DL 3812 SMF 14:15 → LAX Connection details →	2h 08m	7h 52m	97%	89%
American AA 2710 IAH 14:25 → PHX United UA 4722 PHX 18:54 → LAX Connection details →	3h 38m	8h 06m	93%	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