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 4% of the time at 8 am and 22% of the time at 5 pm.

Nonstops (seasonal or thin)


Southwest	SAT	STL	2h 10m	86%	0.0%	548	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach St Louis on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	SAT 05:45 → DEN 07:00WN 3565	3h 05m Denver	DEN 10:05 → STL 13:20WN 1753	7h 35m	100%	96%
Delta Details →	SAT 06:30 → SLC 08:24DL 2592	1h 17m Salt Lake City	SLC 09:41 → STL 13:36DL 2455	7h 06m	96%	88%
Southwest + Unitedtwo ticketsDetails →	SAT 09:05 → DEN 10:15WN 1577	3h 10m Denver	DEN 13:25 → STL 16:33UA 1639	7h 28m	100%	87%
Delta Details →	SAT 07:40 → ATL 11:04DL 998	3h 05m Atlanta	ATL 14:09 → STL 14:48DL 2700	7h 10m	98%	87%
Southwest + Unitedtwo ticketsDetails →	SAT 05:25 → DEN 06:38WN 1471	2h 57m Denver	DEN 09:35 → STL 12:42UA 652	7h 17m	100%	84%
Southwest Details →	SAT 05:00 → MCO 08:45WN 4608	2h 25m Orlando	MCO 11:10 → STL 12:40WN 3316	7h 40m	100%	83%
American Details →	SAT 06:24 → ORD 09:29AA 632	3h 03m Chicago	ORD 12:32 → STL 13:55AA 3815 · flown by Envoy	7h 31m	99%	82%
United Details →	SAT 05:30 → IAH 06:37UA 469	1h 23m Houston	IAH 08:00 → STL 10:07UA 6214 · flown by Mesa	4h 37m	96%	82%
Tight connection: often missed
Southwest Details →	SAT 20:05 → DAL 21:15WN 1338	1h 23m Dallas	DAL 22:38 → STL 00:40 +1WN 1414	4h 21m	69%	38%
American Details →	SAT 18:57 → ORD 22:07AA 4176 · flown by Envoy	53m Chicago	ORD 23:00 → STL 00:16 +1AA 1004	5h 19m	74%	38%
American Details →	SAT 17:35 → DFW 18:59AA 3311	56m Dallas-Fort Worth	DFW 19:55 → STL 21:48AA 1010	4h 11m	55%	33%

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

SLC · 1h 17m · leaves 06:30 4%

PHX · 57m · leaves 06:45 7%

CLT · 1h 00m · leaves 06:01 10%

Afternoon and evening

CLT · 1h 08m · leaves 17:47 24%

ORD · 53m · leaves 18:57 26%

DFW · 56m · leaves 17:35 45%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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