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 DAL → PHX flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops


Southwest	DAL	PHX	2h 40m	75%	2.0%	2,873	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	DAL 06:00 → DEN 07:00WN 1296	1h 40m Denver	DEN 08:40 → PHX 09:35WN 431	5h 35m	100%	89%
Southwest Details →	DAL 06:05 → LAS 06:50WN 1318	1h 05m Las Vegas	LAS 07:55 → PHX 09:15WN 209	5h 10m	98%	89%
Southwest Details →	DAL 06:05 → MCI 07:35WN 4631	3h 05m Kansas City	MCI 10:40 → PHX 11:25WN 4651	7h 20m	98%	84%
Southwest Details →	DAL 08:30 → HOU 09:45WN 7	2h 15m Houston	HOU 12:00 → PHX 12:40WN 2063	6h 10m	99%	83%
Southwest Details →	DAL 08:45 → LAS 09:35WN 695	2h 55m Las Vegas	LAS 12:30 → PHX 13:50WN 2311	7h 05m	100%	83%
Southwest Details →	DAL 07:00 → SLC 08:40WN 1408	2h 55m Salt Lake City	SLC 11:35 → PHX 12:15WN 403	7h 15m	100%	82%
Southwest Details →	DAL 06:10 → TPA 09:35WN 1415	2h 05m Tampa	TPA 11:40 → PHX 13:00WN 4040	8h 50m	100%	81%
Southwest Details →	DAL 06:10 → SAN 07:05WN 1393	2h 10m San Diego	SAN 09:15 → PHX 10:40WN 681	6h 30m	100%	81%
Tight connection: often missed
Southwest Details →	DAL 10:40 → LAS 11:25WN 486	1h 05m Las Vegas	LAS 12:30 → PHX 13:50WN 2311	5h 10m	69%	58%
Southwest Details →	DAL 17:55 → DEN 19:25WN 1303	1h 35m Denver	DEN 21:00 → PHX 22:00WN 1684	6h 00m	71%	26%
Southwest Details →	DAL 15:55 → MCI 17:25WN 3068	1h 05m Kansas City	MCI 18:30 → PHX 19:15WN 2580	5h 20m	61%	23%

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

LAS · 1h 05m · leaves 06:05 2%

DEN · 1h 00m · leaves 06:00 5%

SAN · 55m · leaves 06:10 14%

Afternoon and evening

SNA · 1h 00m · leaves 16:25 24%

LAS · 1h 10m · leaves 16:35 29%

HOU · 55m · leaves 20:30 35%

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 1318 DAL 06:05 → LAS American AA 2004 LAS 09:56 → PHX Connection details →	3h 06m	7h 03m	100%	92%
Southwest WN 1326 DAL 06:00 → LAX American AA 1668 LAX 10:00 → PHX Connection details →	2h 50m	7h 28m	100%	91%
Southwest WN 1408 DAL 07:00 → SLC American AA 6422 SLC 12:15 → PHX Connection details →	3h 35m	8h 00m	100%	87%

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