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 STL → RSW flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


Southwest	STL	RSW	2h 25m	80%	0.5%	1,007	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Fort Myers on time. Total trip = scheduled departure to arrival, layover included (Fort Myers is 1 h ahead of St Louis). Layovers up to 4 hours. Pick a connection for the details.


United Details →	STL 06:00 → ORD 07:30UA 2805	3h 05m Chicago	ORD 10:35 → RSW 14:44UA 1102	7h 44m	97%	89%
United Details →	STL 08:35 → IAH 10:50UA 4579 · flown by GoJet	1h 29m Houston	IAH 12:19 → RSW 15:52UA 1361	6h 17m	97%	82%
Delta Details →	STL 06:21 → MSP 07:57DL 1597	1h 32m Minneapolis	MSP 09:29 → RSW 13:53DL 2400	6h 32m	96%	82%
Delta Details →	STL 07:08 → ATL 09:45DL 1536	3h 08m Atlanta	ATL 12:53 → RSW 14:35DL 1196	6h 26m	99%	81%
Southwest Details →	STL 05:40 → MDW 06:45WN 1008	2h 15m Chicago	MDW 09:00 → RSW 12:45WN 3481	6h 05m	98%	80%
Delta Details →	STL 06:00 → ATL 08:38DL 1524	1h 47m Atlanta	ATL 10:25 → RSW 12:14DL 1153	5h 14m	99%	78%
Delta Details →	STL 10:20 → DTW 12:55DL 2868	1h 37m Detroit	DTW 14:32 → RSW 17:27DL 1225	6h 07m	96%	73%
Delta Details →	STL 10:51 → ATL 13:25DL 1400	3h 42m Atlanta	ATL 17:07 → RSW 18:55DL 1124	7h 01m	99%	70%
Tight connection: often missed
United Details →	STL 08:00 → ORD 09:35UA 4183 · flown by GoJet	1h 00m Chicago	ORD 10:35 → RSW 14:44UA 1102	5h 44m	72%	66%
United Details →	STL 14:57 → IAH 17:16UA 5580 · flown by SkyWest	1h 17m Houston	IAH 18:33 → RSW 21:59UA 2778	6h 02m	75%	58%
Southwest Details →	STL 11:25 → BNA 12:35WN 1110	50m Nashville	BNA 13:25 → RSW 16:30WN 657	4h 05m	65%	34%

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

ORD · 1h 00m · leaves 08:00 28%

Afternoon and evening

ATL · 50m · leaves 15:57 17%

CLT · 1h 14m · leaves 12:39 18%

IAH · 1h 17m · leaves 14:57 25%

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 1926 STL 06:55 → ORD United UA 1102 ORD 10:35 → RSW Connection details →	2h 12m	6h 49m	90%	81%
Southwest WN 4177 STL 09:55 → DTW Delta DL 1225 DTW 14:32 → RSW Connection details →	2h 07m	6h 32m	94%	73%
Southwest WN 236 STL 10:00 → ATL Delta DL 1379 ATL 14:54 → RSW Connection details →	2h 19m	5h 39m	96%	68%

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