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 90-minute layover misses 4% of the time at 8 am and 14% of the time at 7 pm.

Nonstops


Southwest	BWI	CHS	1h 45m	81%	1.6%	1,230	Flying now
Spirit	BWI	CHS	–	100%few flights	0.0%	4	Not 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. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BWI 05:40 → ATL 07:31DL 2950	3h 15m Atlanta	ATL 10:46 → CHS 12:00DL 3107	6h 20m	99%	87%
American Details →	BWI 05:02 → CLT 06:26AA 1708	2h 33m Charlotte	CLT 08:59 → CHS 10:07AA 1666	5h 05m	99%	84%
Delta Details →	BWI 06:08 → DTW 07:40DL 2601	2h 25m Detroit	DTW 10:05 → CHS 12:20DL 5431 · flown by Endeavor	6h 12m	98%	83%
American Details →	BWI 05:44 → ORD 07:12AA 4659 · flown by Republic	1h 18m Chicago	ORD 08:30 → CHS 11:54AA 2452	6h 10m	95%	83%
American Details →	BWI 06:15 → CLT 07:53AA 2670	3h 17m Charlotte	CLT 11:10 → CHS 12:19AA 1658	6h 04m	99%	82%
Delta Details →	BWI 07:00 → ATL 08:56DL 2579	3h 33m Atlanta	ATL 12:29 → CHS 13:41DL 2179	6h 41m	99%	82%
United Details →	BWI 08:16 → ORD 09:30UA 2749	1h 05m Chicago	ORD 10:35 → CHS 14:06UA 3646 · flown by Republic	5h 50m	89%	82%
Southwest Details →	BWI 06:10 → MDW 07:10WN 995	55m Chicago	MDW 08:05 → CHS 11:25WN 356	5h 15m	84%	81%
Tight connection: often missed
American Details →	BWI 20:16 → CLT 21:55AA 1637	55m Charlotte	CLT 22:50 → CHS 23:59AA 1141	3h 42m	57%	36%
American Details →	BWI 18:39 → MIA 21:25AA 1619	51m Miami	MIA 22:16 → CHS 23:59AA 2948	5h 20m	60%	34%
American Details →	BWI 15:46 → DFW 18:12AA 1629	1h 05m Dallas-Fort Worth	DFW 19:17 → CHS 22:55AA 2559	7h 09m	60%	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

CLT · 1h 06m · leaves 06:15 5%

ORD · 1h 18m · leaves 05:44 5%

DFW · 1h 18m · leaves 07:30 9%

Afternoon and evening

DFW · 1h 05m · leaves 15:46 40%

MIA · 51m · leaves 18:39 40%

CLT · 55m · leaves 20:16 43%

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 4689 BWI 06:20 → ATL Delta DL 3107 ATL 10:46 → CHS Connection details →	2h 31m	5h 40m	100%	91%
Southwest WN 3931 BWI 08:20 → ATL Delta DL 2179 ATL 12:29 → CHS Connection details →	2h 09m	5h 21m	96%	81%
Frontier F9 4427 BWI 08:36 → ATL Delta DL 1381 ATL 14:42 → CHS Connection details →	3h 55m	7h 22m	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