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

No clear winner: American’s CLT → GSP flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


American	CLT	GSP	59m	80%	1.7%	3,008	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Greenville on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	CLT 06:59 → ATL 08:13DL 2275	1h 44m Atlanta	ATL 09:57 → GSP 10:57DL 2158	3h 58m	98%	92%
American Details →	CLT 05:45 → PHL 07:27AA 2727	1h 17m Philadelphia	PHL 08:44 → GSP 10:50AA 5800 · flown by Piedmont	5h 05m	95%	89%
Southwest Details →	CLT 06:35 → BNA 07:00WN 1167	3h 05m Nashville	BNA 10:05 → GSP 12:15WN 4622	5h 40m	98%	86%
Delta Details →	CLT 08:01 → ATL 09:16DL 3156	3h 56m Atlanta	ATL 13:12 → GSP 14:13DL 1273	6h 12m	100%	86%
Delta Details →	CLT 05:30 → ATL 06:42DL 3186	1h 33m Atlanta	ATL 08:15 → GSP 09:18DL 3089	3h 48m	98%	84%
American Details →	CLT 05:45 → DFW 07:35AA 3180	2h 06m Dallas-Fort Worth	DFW 09:41 → GSP 13:09AA 3986 · flown by Envoy	7h 24m	97%	80%
American Details →	CLT 07:55 → PHL 09:41AA 3046	2h 19m Philadelphia	PHL 12:00 → GSP 14:04AA 6132 · flown by Piedmont	6h 09m	96%	77%
American Details →	CLT 11:01 → ORD 12:19AA 2908	2h 51m Chicago	ORD 15:10 → GSP 18:11AA 3559 · flown by Envoy	7h 11m	100%	77%
Tight connection: often missed
American Details →	CLT 09:29 → PHL 11:12AA 2291	48m Philadelphia	PHL 12:00 → GSP 14:04AA 6132 · flown by Piedmont	4h 35m	68%	54%
Delta Details →	CLT 16:56 → ATL 18:15DL 3032	1h 01m Atlanta	ATL 19:16 → GSP 20:20DL 2319	3h 24m	63%	49%
American Details →	CLT 16:38 → DFW 18:37AA 2815	1h 13m Dallas-Fort Worth	DFW 19:50 → GSP 23:16AA 2992	6h 38m	65%	36%

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

DCA · 1h 12m · leaves 08:00 4%

PHL · 1h 17m · leaves 05:45 5%

DTW · 55m · leaves 06:00 6%

Afternoon and evening

LGA · 1h 03m · leaves 17:05 40%

DCA · 46m · leaves 14:34 54%

ORD · 58m · leaves 18:26 56%

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 5039 CLT 09:10 → ATL Delta DL 1273 ATL 13:12 → GSP Connection details →	2h 31m	5h 03m	94%	81%
American AA 5219 CLT 07:20 → IAD United UA 4962 IAD 12:40 → GSP Connection details →	3h 50m	7h 00m	100%	80%
American AA 5041 CLT 13:05 → ATL Delta DL 1021 ATL 18:00 → GSP Connection details →	3h 29m	6h 01m	93%	72%

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