Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Southwest’s ELP → SAN flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	ELP	SAN	1h 55m	80%	0.6%	361	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Diego on time. Total trip = scheduled departure to arrival, layover included (San Diego is 1 h behind El Paso). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	ELP 05:15 → DEN 07:00WN 3706	1h 15m Denver	DEN 08:15 → SAN 09:40WN 1699	5h 25m	100%	86%
United Details →	ELP 07:00 → IAH 10:02UA 6163 · flown by Mesa	1h 58m Houston	IAH 12:00 → SAN 13:21UA 2399	7h 21m	98%	81%
United Details →	ELP 07:00 → DEN 08:53UA 724	2h 22m Denver	DEN 11:15 → SAN 12:41UA 1940	6h 41m	96%	78%
American Details →	ELP 05:49 → PHX 06:15AA 3882 · flown by Envoy	1h 19m Phoenix	PHX 07:34 → SAN 08:51AA 2461	4h 02m	98%	77%
Frontier Details →	ELP 18:08 → DEN 20:09F9 4418	2h 20m Denver	DEN 22:29 → SAN 23:51F9 4989	6h 43m	95%	72%
Southwest Details →	ELP 06:35 → PHX 06:55WN 4224	2h 20m Phoenix	PHX 09:15 → SAN 10:35WN 1677	4h 58m	100%	70%
American Details →	ELP 06:00 → PHX 06:35AA 6217 · flown by SkyWest	3h 55m Phoenix	PHX 10:30 → SAN 11:47AA 2477	6h 47m	96%	64%
Southwest Details →	ELP 11:25 → PHX 11:45WN 1201	1h 50m Phoenix	PHX 13:35 → SAN 14:45WN 897	4h 20m	98%	63%
Tight connection: often missed
Southwest Details →	ELP 16:40 → HOU 19:40WN 3320	1h 00m Houston	HOU 20:40 → SAN 21:50WN 2072	6h 10m	49%	28%
American Details →	ELP 17:32 → DFW 20:27AA 3504 · flown by Envoy	1h 07m Dallas-Fort Worth	DFW 21:34 → SAN 22:37AA 1011	6h 05m	72%	24%
Southwest Details →	ELP 16:30 → DEN 18:20WN 1798	55m Denver	DEN 19:15 → SAN 20:40WN 1703	5h 10m	23%	4%

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 15m · leaves 05:15 0%

PHX · 1h 19m · leaves 05:49 2%

DFW · 1h 06m · leaves 07:05 12%

Afternoon and evening

PHX · 46m · leaves 19:07 47%

HOU · 1h 00m · leaves 16:40 51%

DEN · 55m · leaves 16:30 77%

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.


American AA 4910 ELP 06:01 → LAX United UA 4643 LAX 09:00 → SAN Connection details →	1h 46m	5h 07m	96%	84%
Southwest WN 4332 ELP 09:05 → DEN United UA 1302 DEN 13:30 → SAN Connection details →	2h 35m	6h 50m	94%	81%
Southwest WN 1201 ELP 11:25 → PHX Frontier F9 1571 PHX 14:20 → SAN Connection details →	2h 35m	5h 07m	98%	76%

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