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 → EYW flights land within a few points of 82% on time whatever the hour.

Nonstops


American	CLT	EYW	2h 20m	82%	2.3%	1,259	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	CLT 05:15 → MIA 07:20AA 1165	2h 35m Miami	MIA 09:55 → EYW 10:55AA 3515 · flown by Envoy	5h 40m	99%	98%
American Details →	CLT 07:05 → MIA 09:12AA 770	2h 58m Miami	MIA 12:10 → EYW 13:14AA 3518 · flown by Envoy	6h 09m	98%	87%
Delta Details →	CLT 06:59 → ATL 08:13DL 2275	3h 18m Atlanta	ATL 11:31 → EYW 13:28DL 1472	6h 25m	100%	86%
American Details →	CLT 13:30 → MIA 15:38AA 2912	2h 33m Miami	MIA 18:11 → EYW 19:10AA 3517 · flown by Envoy	5h 42m	96%	84%
Delta Details →	CLT 05:30 → ATL 06:42DL 3186	2h 24m Atlanta	ATL 09:06 → EYW 11:00DL 1281	5h 32m	99%	84%
American Details →	CLT 05:45 → PHL 07:27AA 2727	3h 03m Philadelphia	PHL 10:30 → EYW 13:41AA 1898	7h 55m	97%	82%
United Details →	CLT 08:05 → ORD 09:22UA 2771	1h 33m Chicago	ORD 10:55 → EYW 15:19UA 3690 · flown by Republic	7h 14m	92%	80%
American Details →	CLT 07:46 → ORD 09:02AA 2843	2h 18m Chicago	ORD 11:20 → EYW 15:41AA 3996 · flown by Envoy	7h 55m	98%	79%

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

EWR · 1h 19m · leaves 07:00 6%

ATL · 53m · leaves 06:59 18%

PHL · 49m · leaves 07:55 23%

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 2843 CLT 07:46 → ORD United UA 3690 ORD 10:55 → EYW Connection details →	1h 53m	7h 33m	89%	78%
American AA 5041 CLT 13:05 → ATL Delta DL 2815 ATL 17:53 → EYW Connection details →	3h 22m	6h 48m	93%	71%
United UA 2771 CLT 08:05 → ORD American AA 3996 ORD 11:20 → EYW Connection details →	1h 58m	7h 36m	84%	67%

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