Sun, Oct 4 has passed, so this is the 12-month record.

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 9 am and 1 time in 4 at 4 pm.

Nonstops (seasonal or thin)


Southwest	STL	CLE	1h 30m	83%	0.3%	698	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Cleveland on time. Total trip = scheduled departure to arrival, layover included (Cleveland 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	1h 35m Chicago	ORD 09:05 → CLE 11:41UA 3422 · flown by Republic	4h 41m	97%	92%
Southwest Details →	STL 05:40 → MDW 06:45WN 1008	1h 10m Chicago	MDW 07:55 → CLE 10:10WN 4088	3h 30m	96%	88%
Southwest Details →	STL 08:42 → DEN 10:02WN 3910	2h 18m Denver	DEN 12:20 → CLE 17:10WN 1506	7h 28m	100%	85%
Southwest Details →	STL 08:55 → MDW 10:00WN 2570	2h 15m Chicago	MDW 12:15 → CLE 14:25WN 1813	4h 30m	100%	85%
Delta Details →	STL 07:08 → ATL 09:45DL 1536	3h 51m Atlanta	ATL 13:36 → CLE 15:23DL 2545	7h 15m	99%	84%
Delta Details →	STL 06:21 → MSP 07:57DL 1597	2h 03m Minneapolis	MSP 10:00 → CLE 12:52DL 2057	5h 31m	97%	83%
Delta Details →	STL 06:00 → ATL 08:38DL 1524	1h 05m Atlanta	ATL 09:43 → CLE 11:32DL 2978	4h 33m	96%	83%
Delta Details →	STL 09:24 → ATL 12:02DL 1571	3h 24m Atlanta	ATL 15:26 → CLE 17:17DL 880	6h 53m	99%	80%
Tight connection: often missed
American Details →	STL 17:48 → PHL 21:10AA 2714	50m Philadelphia	PHL 22:00 → CLE 23:39AA 2253	4h 51m	70%	45%
United Details →	STL 14:57 → IAH 17:16UA 5580 · flown by SkyWest	49m Houston	IAH 18:05 → CLE 21:59UA 744	6h 02m	56%	40%
United Details →	STL 15:22 → ORD 17:00UA 4452 · flown by GoJet	50m Chicago	ORD 17:50 → CLE 20:18UA 2652	3h 56m	46%	25%

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

MDW · 1h 10m · leaves 05:40 4%

ATL · 1h 05m · leaves 06:00 4%

ORD · 54m · leaves 09:08 6%

Afternoon and evening

LGA · 1h 05m · leaves 12:35 25%

PHL · 50m · leaves 17:48 30%

IAH · 49m · leaves 14:57 44%

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.


United UA 2805 STL 06:00 → ORD American AA 4949 ORD 11:30 → CLE Connection details →	4h 00m	7h 02m	97%	81%
Southwest WN 236 STL 10:00 → ATL Delta DL 880 ATL 15:26 → CLE Connection details →	2h 51m	6h 17m	96%	79%
Southwest WN 3985 STL 05:05 → TPA Frontier F9 2684 TPA 10:07 → CLE Connection details →	1h 42m	6h 41m	94%	79%

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