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 2% of the time at 6 am and 37% of the time at 6 pm.

Nonstops


American	CHS	ORD	2h 35m	81%	2.4%	952	Flying now
United	CHS	ORD	2h 38m	77%	2.6%	1,154	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	CHS 06:41 → CLT 07:47AA 3235	3h 14m Charlotte	CLT 11:01 → ORD 12:19AA 2908	6h 38m	99%	88%
United Details →	CHS 06:50 → IAH 08:21UA 434	1h 14m Houston	IAH 09:35 → ORD 12:29UA 2124	6h 39m	96%	82%
Delta Details →	CHS 05:10 → ATL 06:21DL 3055	1h 04m Atlanta	ATL 07:25 → ORD 08:35DL 1178	4h 25m	98%	82%
American Details →	CHS 05:00 → CLT 06:01AA 3298	1h 45m Charlotte	CLT 07:46 → ORD 09:02AA 2843	5h 02m	98%	81%
American Details →	CHS 06:00 → DCA 07:35AA 3089	4h 00m Washington	DCA 11:35 → ORD 12:53AA 489	7h 53m	100%	79%
United Details →	CHS 10:00 → IAD 11:37UA 1858	1h 38m Dulles	IAD 13:15 → ORD 14:29UA 2331	5h 29m	95%	77%
Delta Details →	CHS 06:00 → JFK 08:01DL 5445 · flown by Endeavor	2h 29m New York	JFK 10:30 → ORD 12:20DL 5119 · flown by Endeavor	7h 20m	96%	76%
Delta Details →	CHS 07:10 → DTW 09:19DL 5092 · flown by Endeavor	56m Detroit	DTW 10:15 → ORD 10:50DL 3673 · flown by SkyWest	4h 40m	88%	75%
Tight connection: often missed
American Details →	CHS 18:17 → CLT 19:40AA 5672 · flown by PSA	47m Charlotte	CLT 20:27 → ORD 22:00AA 627	4h 43m	64%	36%
American Details →	CHS 19:19 → DFW 21:17AA 1662	55m Dallas-Fort Worth	DFW 22:12 → ORD 00:50 +1AA 1193	6h 31m	49%	24%
American Details →	CHS 15:42 → DFW 17:39AA 1656	59m Dallas-Fort Worth	DFW 18:38 → ORD 21:22AA 1424	6h 40m	62%	23%

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 04m · leaves 05:10 2%

IAH · 1h 14m · leaves 06:50 4%

LGA · 56m · leaves 06:41 7%

Afternoon and evening

LGA · 1h 00m · leaves 15:45 37%

DFW · 55m · leaves 19:19 51%

DCA · 50m · leaves 19:47 52%

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 1141 CHS 06:30 → BNA American AA 3973 BNA 09:04 → ORD Connection details →	2h 09m	5h 30m	98%	88%
American AA 3089 CHS 06:00 → DCA United UA 2201 DCA 10:30 → ORD Connection details →	2h 55m	6h 48m	100%	88%
Southwest WN 1090 CHS 07:15 → BWI United UA 704 BWI 10:32 → ORD Connection details →	1h 42m	5h 33m	96%	87%

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