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 10 am and 1 time in 4 at 4 pm.

Nonstops (seasonal or thin)


Southwest	STL	CHS	2h 00m	79%	0.0%	160	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	STL 05:40 → MDW 06:45WN 1008	1h 20m Chicago	MDW 08:05 → CHS 11:25WN 356	4h 45m	96%	91%
United Details →	STL 06:00 → ORD 07:30UA 2805	3h 05m Chicago	ORD 10:35 → CHS 14:06UA 3646 · flown by Republic	7h 06m	97%	89%
Delta Details →	STL 06:00 → ATL 08:38DL 1524	2h 08m Atlanta	ATL 10:46 → CHS 12:00DL 3107	5h 00m	99%	88%
Delta Details →	STL 07:08 → ATL 09:45DL 1536	2h 44m Atlanta	ATL 12:29 → CHS 13:41DL 2179	5h 33m	99%	82%
American Details →	STL 05:10 → CLT 08:03AA 858	3h 07m Charlotte	CLT 11:10 → CHS 12:19AA 1658	6h 09m	99%	82%
Delta Details →	STL 06:21 → MSP 07:57DL 1597	2h 33m Minneapolis	MSP 10:30 → CHS 14:16DL 2463	6h 55m	98%	81%
Delta Details →	STL 09:24 → ATL 12:02DL 1571	2h 40m Atlanta	ATL 14:42 → CHS 15:58DL 1381	5h 34m	99%	79%
Delta Details →	STL 06:30 → DTW 09:04DL 1626	1h 01m Detroit	DTW 10:05 → CHS 12:20DL 5431 · flown by Endeavor	4h 50m	92%	79%
Tight connection: often missed
United Details →	STL 08:00 → ORD 09:35UA 4183 · flown by GoJet	1h 00m Chicago	ORD 10:35 → CHS 14:06UA 3646 · flown by Republic	5h 06m	72%	66%
American Details →	STL 13:27 → ORD 14:59AA 6352 · flown by SkyWest	1h 07m Chicago	ORD 16:06 → CHS 19:31AA 3454 · flown by Envoy	5h 07m	69%	51%
American Details →	STL 12:39 → CLT 15:34AA 2717	53m Charlotte	CLT 16:27 → CHS 17:46AA 5672 · flown by PSA	4h 07m	63%	42%

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

ATL · 1h 01m · leaves 07:08 3%

MDW · 1h 20m · leaves 05:40 4%

DFW · 1h 07m · leaves 05:30 6%

Afternoon and evening

ATL · 56m · leaves 15:57 14%

IAD · 1h 08m · leaves 12:55 26%

CLT · 53m · leaves 12:39 37%

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 3646 ORD 10:35 → CHS Connection details →	2h 12m	6h 11m	90%	80%
Southwest WN 236 STL 10:00 → ATL Delta DL 1381 ATL 14:42 → CHS Connection details →	2h 07m	4h 58m	96%	79%
Frontier F9 4474 STL 17:06 → ATL Delta DL 2850 ATL 23:10 → CHS Connection details →	3h 03m	6h 20m	93%	73%

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