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 SNA → DAL flights land within a few points of 77% on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	SNA	DAL	2h 55m	77%	0.5%	364	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas on time. Total trip = scheduled departure to arrival, layover included (Dallas is 2 h ahead of Santa Ana). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	SNA 07:45 → LAS 09:05WN 4296	1h 33m Las Vegas	LAS 10:38 → DAL 15:25WN 2218	5h 41m	100%	82%
Southwest Details →	SNA 07:05 → PHX 08:30WN 3887	2h 25m Phoenix	PHX 10:55 → DAL 15:20WN 3255	6h 15m	100%	74%
Southwest Details →	SNA 07:00 → OAK 08:40WN 4935	2h 20m Oakland	OAK 11:00 → DAL 16:25WN 3014	7h 25m	100%	73%
Delta Details →	SNA 12:18 → ATL 19:41DL 1521	1h 34m Atlanta	ATL 21:15 → DAL 22:34DL 1104	8h 16m	91%	72%
Delta Details →	SNA 06:45 → ATL 14:19DL 721	2h 19m Atlanta	ATL 16:38 → DAL 17:55DL 2780	9h 10m	94%	72%
Southwest Details →	SNA 14:00 → LAS 15:20WN 2274	2h 00m Las Vegas	LAS 17:20 → DAL 22:10WN 2220	6h 10m	98%	69%
Southwest Details →	SNA 08:35 → PHX 09:50WN 3290	3h 35m Phoenix	PHX 13:25 → DAL 17:50WN 3256	7h 15m	100%	67%
Southwest Details →	SNA 07:00 → DEN 10:25WN 4011	1h 15m Denver	DEN 11:40 → DAL 14:45WN 2354	5h 45m	98%	62%

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 07:00 2%

Afternoon and evening

LAS · 1h 10m · leaves 14:00 14%

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 628 SNA 06:46 → PHX Southwest WN 3255 PHX 10:55 → DAL Connection details →	2h 36m	6h 34m	96%	70%
American AA 2660 SNA 09:49 → PHX Southwest WN 3256 PHX 13:25 → DAL Connection details →	2h 13m	6h 01m	97%	64%
Delta DL 4078 SNA 10:45 → LAS Southwest WN 4489 LAS 14:25 → DAL Connection details →	2h 23m	6h 25m	94%	52%

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