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 1 time in 10 at 10 am and 42% of the time at 10 pm.

Nonstops


United	ORD	CHS	2h 24m	77%	1.6%	1,154	Flying now
American	ORD	CHS	2h 22m	77%	2.5%	952	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 Chicago). Layovers up to 4 hours. Pick a connection for the details.


United Details →	ORD 06:30 → IAD 09:24UA 1689	3h 11m Dulles	IAD 12:35 → CHS 14:27UA 3487 · flown by Republic	6h 57m	100%	88%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	2h 13m Atlanta	ATL 10:46 → CHS 12:00DL 3107	5h 30m	97%	87%
Delta Details →	ORD 06:35 → ATL 09:41DL 1247	2h 48m Atlanta	ATL 12:29 → CHS 13:41DL 2179	6h 06m	98%	82%
American Details →	ORD 05:07 → CLT 08:10AA 2842	3h 00m Charlotte	CLT 11:10 → CHS 12:19AA 1658	6h 12m	98%	81%
Delta Details →	ORD 09:45 → ATL 12:51DL 1178	3h 08m Atlanta	ATL 15:59 → CHS 17:18DL 2174	6h 31m	99%	79%
Delta Details →	ORD 06:30 → MSP 08:06DL 1717	2h 24m Minneapolis	MSP 10:30 → CHS 14:16DL 2463	6h 46m	95%	79%
Delta Details →	ORD 13:46 → ATL 16:54DL 2894	2h 39m Atlanta	ATL 19:33 → CHS 20:47DL 2493	6h 01m	96%	78%
United Details →	ORD 06:00 → EWR 09:12UA 2295	2h 58m Newark	EWR 12:10 → CHS 14:16UA 1760	7h 16m	100%	78%
Tight connection: often missed
American Details →	ORD 16:05 → MIA 20:26AA 2910	1h 50m Miami	MIA 22:16 → CHS 23:59AA 2948	6h 54m	74%	43%
American Details →	ORD 18:47 → CLT 21:59AA 689	51m Charlotte	CLT 22:50 → CHS 23:59AA 1141	4h 11m	58%	37%
American Details →	ORD 15:50 → DFW 18:28AA 2754	49m Dallas-Fort Worth	DFW 19:17 → CHS 22:55AA 2559	6h 05m	52%	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

DFW · 1h 06m · leaves 05:00 9%

DEN · 55m · leaves 07:05 10%

ATL · 1h 05m · leaves 06:35 10%

Afternoon and evening

DCA · 57m · leaves 13:20 43%

LGA · 1h 07m · leaves 16:30 45%

DFW · 49m · leaves 15:50 48%

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 425 ORD 07:12 → ATL Delta DL 2179 ATL 12:29 → CHS Connection details →	2h 02m	5h 29m	97%	82%
American AA 1363 ORD 08:12 → ATL Delta DL 1381 ATL 14:42 → CHS Connection details →	3h 28m	6h 46m	99%	80%
United UA 530 ORD 09:07 → ATL Delta DL 2174 ATL 15:59 → CHS Connection details →	3h 37m	7h 09m	98%	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