Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

The nonstop is quickest: Southwest HOU → CHS (2h 15m), on time 62% of the time. Delta via Atlanta (5h 00m) is more reliable, 86%, but takes 2h 45m longer.

Nonstops (seasonal or thin)


Southwest	HOU	CHS	2h 15m	63%	0.5%	193	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 Houston). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	HOU 06:00 → ATL 09:05DL 2557	1h 41m Atlanta	ATL 10:46 → CHS 12:00DL 3107	5h 00m	96%	86%
Delta Details →	HOU 13:10 → ATL 16:18DL 1195	3h 15m Atlanta	ATL 19:33 → CHS 20:47DL 2493	6h 37m	97%	78%
Delta Details →	HOU 10:16 → ATL 13:20DL 1509	2h 39m Atlanta	ATL 15:59 → CHS 17:18DL 2174	6h 00m	98%	77%
Delta Details →	HOU 17:12 → ATL 20:28DL 2381	2h 42m Atlanta	ATL 23:10 → CHS 00:36 +1DL 2850	6h 14m	95%	75%
American Details →	HOU 06:03 → DFW 07:30AA 3395 · flown by Envoy	1h 06m Dallas-Fort Worth	DFW 08:36 → CHS 12:28AA 5120 · flown by PSA	5h 25m	90%	71%
Southwest Details →	HOU 05:25 → BWI 09:30WN 3797	2h 15m Baltimore	BWI 11:45 → CHS 13:25WN 899	7h 00m	100%	69%
Southwest Details →	HOU 07:00 → DAL 08:10WN 4	2h 55m Dallas	DAL 11:05 → CHS 14:35WN 4700	6h 35m	100%	64%
Southwest Details →	HOU 07:10 → BNA 09:10WN 1954	1h 00m Nashville	BNA 10:10 → CHS 12:40WN 469	4h 30m	89%	63%
Tight connection: often missed
Southwest Details →	HOU 12:55 → DEN 14:25WN 3069	55m Denver	DEN 15:20 → CHS 20:40WN 1142	6h 45m	58%	33%
American Details →	HOU 16:14 → DFW 17:38AA 5002 · flown by SkyWest	1h 39m Dallas-Fort Worth	DFW 19:17 → CHS 22:55AA 2559	5h 41m	72%	31%
Southwest Details →	HOU 15:58 → MDW 18:22WN 2042	1h 23m Chicago	MDW 19:45 → CHS 22:52WN 2042	5h 55m	57%	17%

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

DFW · 1h 06m · leaves 06:03 10%

BNA · 1h 00m · leaves 07:10 11%

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.


Southwest WN 2622 HOU 05:50 → ATL Delta DL 3107 ATL 10:46 → CHS Connection details →	1h 56m	5h 10m	97%	88%
Southwest WN 1970 HOU 05:30 → DEN United UA 1003 DEN 09:50 → CHS Connection details →	2h 55m	8h 44m	100%	85%
Southwest WN 1947 HOU 09:45 → ATL Delta DL 2174 ATL 15:59 → CHS Connection details →	3h 11m	6h 31m	98%	80%

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