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 3% of the time at 9 am and 1 time in 5 at 5 pm.

Nonstops


American	PHX	STL	3h 04m	80%	0.6%	643	Flying now
Southwest	PHX	STL	2h 50m	77%	0.2%	1,620	Flying now
Frontier	PHX	STL	2h 56m	83%	1.9%	53	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	PHX 23:55 → MDW 05:10WN 3298	2h 40m Chicago	MDW 07:50 → STL 09:10 +1WN 2900	7h 15m	100%	95%
Southwest Details →	PHX 05:15 → DEN 08:00WN 3259	2h 05m Denver	DEN 10:05 → STL 13:20WN 1753	6h 05m	98%	94%
Southwest Details →	PHX 23:05 → MCO 06:20WN 4508	2h 30m Orlando	MCO 08:50 → STL 10:20 +1WN 4501	9h 15m	100%	91%
Southwest Details →	PHX 07:30 → LAS 08:40WN 2336	2h 30m Las Vegas	LAS 11:10 → STL 16:25WN 2369	6h 55m	100%	90%
American Details →	PHX 23:05 → MIA 06:28AA 2654	1h 55m Miami	MIA 08:23 → STL 10:24 +1AA 3954 · flown by Envoy	9h 19m	96%	90%
American Details →	PHX 23:05 → PHL 06:39AA 2585	2h 21m Philadelphia	PHL 09:00 → STL 10:36 +1AA 2720	9h 30m	99%	89%
Delta Details →	PHX 06:00 → SLC 08:40DL 1535	1h 01m Salt Lake City	SLC 09:41 → STL 13:36DL 2455	5h 36m	97%	89%
Southwest Details →	PHX 06:05 → MCI 10:35WN 2563	3h 10m Kansas City	MCI 13:45 → STL 14:50WN 2083	6h 45m	100%	88%
Tight connection: often missed
Alaska Details →	PHX 09:10 → SEA 12:17AS 637	49m Seattle	SEA 13:06 → STL 18:57AS 647	7h 47m	73%	63%
American Details →	PHX 12:55 → PHL 20:41AA 1803	1h 18m Philadelphia	PHL 21:59 → STL 23:32AA 1368	8h 37m	65%	47%
Southwest Details →	PHX 15:25 → DEN 18:10WN 3265	1h 05m Denver	DEN 19:15 → STL 22:28WN 1756	5h 05m	39%	15%

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 20m · leaves 08:50 2%

SLC · 1h 01m · leaves 06:00 3%

MDW · 1h 20m · leaves 06:25 5%

Afternoon and evening

PHL · 1h 18m · leaves 12:55 35%

DEN · 1h 05m · leaves 15:25 61%

BNA · 58m · leaves 15:20 71%

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 2004 PHX 07:45 → LAS Southwest WN 2369 LAS 11:10 → STL Connection details →	2h 13m	6h 40m	96%	87%
Frontier F9 1376 PHX 06:40 → DEN United UA 1639 DEN 13:25 → STL Connection details →	3h 48m	7h 53m	99%	86%
Delta DL 1570 PHX 06:59 → SEA Alaska AS 647 SEA 13:06 → STL Connection details →	3h 01m	9h 58m	98%	86%

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